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IRON MOUNTAIN INC. 2023-2024 Proxy Voting Records

Compiled from SEC Form N-PX filings and IRON MOUNTAIN INC.’s Form 8-K, filed 2024-06-05 (Item 5.07 on EDGAR). Page generated 02 October 2026.

  • 21Reported items
  • 740Asset managers
  • 10,351Fund votes
  • 2024-05-30Meeting date

Proxy season: 2023-2024 2024-2025 2025-2026

Explore IRON MOUNTAIN INC. in the interactive database Compare manager voting policies

Official 2023-2024 meeting results reported by IRON MOUNTAIN INC.

These tallies are IRON MOUNTAIN INC.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed 2024-06-05 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.

IRON MOUNTAIN INC. — official shareholder meeting results, meeting held 2024-05-30
Ballot itemForAgainst AbstainWithheldBroker non-votesOutcome
Elect Director: Jennifer Allerton 214,038,073957,694254,532 --35,997,592 Majority: yes
Elect Director: Pamela M. Arway 208,143,6256,850,689255,985 --35,997,592 Majority: yes
Elect Director: Clarke H. Bailey 188,135,07826,829,573285,648 --35,997,592 Majority: yes
Elect Director: Kent P. Dauten 203,420,42511,412,749417,125 --35,997,592 Majority: yes
Elect Director: Monte Ford 213,319,7921,647,943282,564 --35,997,592 Majority: yes
Elect Director: Robin L. Matlock 214,165,185809,440275,674 --35,997,592 Majority: yes
Elect Director: William L. Meaney 213,848,7691,125,414276,116 --35,997,592 Majority: yes
Elect Director: Wendy J. Murdock 211,388,1053,589,332272,862 --35,997,592 Majority: yes
Elect Director: Walter C. Rakowich 205,512,4849,451,657286,158 --35,997,592 Majority: yes
Elect Director: Theodore R. Samuels 212,337,2352,632,577280,487 --35,997,592 Majority: yes
Elect Director: Doyle R. Simons 214,080,622889,187280,490 --35,997,592 Majority: yes

Source: IRON MOUNTAIN INC., Form 8-K, filed with the SEC on 2024-06-05 — read the filing on EDGAR.

How asset managers voted at the IRON MOUNTAIN INC. 2023-2024 meeting

Each item below shows how the 740 asset managers that disclosed a IRON MOUNTAIN INC. vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report. These are reported items, not a count of the ballot: fund filings describe one ballot item in different words. Two descriptions are shown as one item only on evidence — the same text (or one cut short of the other), the same director nominee, or a match to the same row of IRON MOUNTAIN INC.’s own Form 8-K tally — never because they merely read alike. A description that could not be joined that way is listed on its own, so one ballot item can appear more than once.

1. The approval of a non-binding, advisory resolution approving the compensation of our named executive officers as described in the Iron Mountain Incorporated Proxy Statement.

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2024-05-30.

Combines 15 wordings of this item as funds reported it.

98% fund support · no official result

FOR 98%

The 684 asset managers below cast 98% of the shares they voted on this item FOR (191,164,781 for, 4,212,245 against).

FOR: 191,164,781 (97.8%)AGAINST: 4,212,245 (2.2%)ABSTAIN: 45,299 (0.0%)NOT VOTED: 29,533 (0.0%)UNKNOWN: 2,329 (0.0%)
Largest asset managers voting on “The approval of a non-binding, advisory resolution approving the compensation of our named executive officers ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard46,399,8030 00For
BlackRock18,174,8621,201 00For
Cohen & Steers16,387,9870 00For
Fidelity10,702,7360 00For
Capital Group8,217,8722 00For
GEODE CAPITAL MANAGEMENT, LLC7,263,7680 00For
Charles Schwab6,423,1040 00For
Daiwa Securities Group Inc.4,457,2130 00For
Dimensional4,269,9250 00For
Northern Trust3,752,35419,737 00For
State Street3,729,6620 00For
Invesco2,949,3250 00For
PICTET ASSET MANAGEMENT SA2,940,4280 00For
Amundi2,092,83627,333 00For
Wellington2,096,2860 00For
Prudential/PGIM2,058,0140 00For
Legal & General Investment Management Ltd01,724,637 00Against
DWS1,687,2000 00For
Nuveen1,657,2760 00For
Epoch Investment Partners, Inc.1,641,5540 00For
MELLON INVESTMENTS Corp1,505,1600 00For
American Century1,413,9770 00For
JPMorgan1,342,9340 00For
AGF MANAGEMENT LTD1,280,4150 00For
TIAA1,274,0600 00For

Showing the 25 largest of 684 asset managers. See all 684 in the interactive database.

2. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Clarke H. Bailey

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 9 wordings of this item as funds reported it.

88% Majority: yes · of votes cast

FOR 88%12%
FOR: 188,135,078AGAINST: 26,829,573

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Clarke H. Bailey”): 188,135,078 for, 26,829,573 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 64% for, 9% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 96% of the shares they voted on this item FOR (101,802,267 for, 4,181,822 against).

FOR 96%
FOR: 101,802,267 (96.0%)AGAINST: 4,181,822 (3.9%)ABSTAIN: 9,073 (0.0%)UNKNOWN: 116 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,393,8547,883 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,723,6156,047 00For
Dimensional3,547,3440 00For
Charles Schwab03,197,627 00Against
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments0494,018 00Against
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust388,93923,019 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

3. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Doyle R. Simons

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 9 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%
FOR: 214,080,622AGAINST: 889,187

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Doyle R. Simons”): 214,080,622 for, 889,187 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 73% for, 0.4% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,922,432 for, 61,773 against).

FOR 99.9%
FOR: 105,922,432 (99.9%)AGAINST: 61,773 (0.1%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

4. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Pamela M. Arway

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 9 wordings of this item as funds reported it.

97% Majority: yes · of votes cast

FOR 97%
FOR: 208,143,625AGAINST: 6,850,689

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Pamela M. Arway”): 208,143,625 for, 6,850,689 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 71% for, 2% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.8% of the shares they voted on this item FOR (105,773,389 for, 210,700 against).

FOR 99.7%
FOR: 105,773,389 (99.8%)AGAINST: 210,700 (0.2%)ABSTAIN: 9,073 (0.0%)UNKNOWN: 116 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,395,3716,366 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,725,3384,324 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust388,93923,019 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

5. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Jennifer Allerton

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%
FOR: 214,038,073AGAINST: 957,694

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Jennifer Allerton”): 214,038,073 for, 957,694 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 73% for, 0.4% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,971,120 for, 13,085 against).

FOR 99.9%
FOR: 105,971,120 (100.0%)AGAINST: 13,085 (0.0%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

6. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Kent P. Dauten

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 9 wordings of this item as funds reported it.

95% Majority: yes · of votes cast

FOR 95%
FOR: 203,420,425AGAINST: 11,412,749

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Kent P. Dauten”): 203,420,425 for, 11,412,749 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 69% for, 4% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.7% of the shares they voted on this item FOR (105,735,475 for, 248,614 against).

FOR 99.7%
FOR: 105,735,475 (99.8%)AGAINST: 248,614 (0.2%)ABSTAIN: 9,073 (0.0%)UNKNOWN: 116 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,397,0964,641 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,723,6156,047 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust388,93923,019 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

7. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Monte Ford

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

99.2% Majority: yes · of votes cast

FOR 99.2%
FOR: 213,319,792AGAINST: 1,647,943

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Monte Ford”): 213,319,792 for, 1,647,943 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 73% for, 0.6% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,922,432 for, 61,773 against).

FOR 99.9%
FOR: 105,922,432 (99.9%)AGAINST: 61,773 (0.1%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

8. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Robin L. Matlock

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

99.6% Majority: yes · of votes cast

FOR 99.6%
FOR: 214,165,185AGAINST: 809,440

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Robin L. Matlock”): 214,165,185 for, 809,440 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 73% for, 0.3% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,947,343 for, 33,117 against).

FOR 99.9%
FOR: 105,947,343 (100.0%)AGAINST: 33,117 (0.0%)ABSTAIN: 12,818 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

9. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Theodore R. Samuels

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%
FOR: 212,337,235AGAINST: 2,632,577

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Theodore R. Samuels”): 212,337,235 for, 2,632,577 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 72% for, 0.9% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,946,180 for, 38,025 against).

FOR 99.9%
FOR: 105,946,180 (100.0%)AGAINST: 38,025 (0.0%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,401,7370 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,729,6620 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

10. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Walter C. Rakowich

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

96% Majority: yes · of votes cast

FOR 96%
FOR: 205,512,484AGAINST: 9,451,657

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Walter C. Rakowich”): 205,512,484 for, 9,451,657 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 70% for, 3% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.8% of the shares they voted on this item FOR (105,810,931 for, 169,413 against).

FOR 99.8%
FOR: 105,810,931 (99.8%)AGAINST: 169,413 (0.2%)ABSTAIN: 12,818 (0.0%)UNKNOWN: 116 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,397,0964,641 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,725,3384,324 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust388,93923,019 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

11. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: Wendy J. Murdock

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%
FOR: 211,388,105AGAINST: 3,589,332

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: Wendy J. Murdock”): 211,388,105 for, 3,589,332 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 72% for, 1% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,947,343 for, 36,862 against).

FOR 99.9%
FOR: 105,947,343 (100.0%)AGAINST: 36,862 (0.0%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

12. For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year term or until their successors are elected and qualified: William L. Meaney

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2024-05-30.

Combines 8 wordings of this item as funds reported it.

99.4% Majority: yes · of votes cast

FOR 99.4%
FOR: 213,848,769AGAINST: 1,125,414

IRON MOUNTAIN INC.’s own tally for this item (“Elect Director: William L. Meaney”): 213,848,769 for, 1,125,414 against, per its Form 8-K filed 2024-06-05 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 293,085,683 outstanding shares: 73% for, 0.4% against (73% of the company cast a for/against vote).

The 135 asset managers below cast 99.9% of the shares they voted on this item FOR (105,972,454 for, 11,751 against).

FOR 99.9%
FOR: 105,972,454 (100.0%)AGAINST: 11,751 (0.0%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “For the election of eleven (11) directors to the Iron Mountain Incorporated Board of Directors for a one-year ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,400,1321,605 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,6592,003 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust292,9730 00For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

13. The approval of amendment to Iron Mountain Incorporated's Certificate of Incorporation to limit liability of certain officers.

CORPORATE GOVERNANCE

Meeting held 2024-05-30.

Combines 5 wordings of this item as funds reported it.

98% fund support · no official result

FOR 98%

The 133 asset managers below cast 98% of the shares they voted on this item FOR (103,355,102 for, 2,594,980 against).

FOR: 103,355,102 (97.5%)AGAINST: 2,594,980 (2.4%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “The approval of amendment to Iron Mountain Incorporated's Certificate of Incorporation to limit liability of c” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,393,3678,370 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,9401,722 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM880,761493,179 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments0494,018 00Against
Jackson National491,1030 00For
JPMorgan0451,299 00Against
Northern Trust411,9580 00For
Neuberger Berman0378,180 00Against
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
MUTUAL FUND SERIES TRUST294,0440 00For
Pacer Funds Trust0292,973 00Against

Showing the 25 largest of 133 asset managers. See all 133 in the interactive database.

14. The ratification of the selection by the Audit Committee of Deloitte & Touche LLP as Iron Mountain Incorporated's independent registered public accounting firm for the year ending December 31, 2024.

AUDIT-RELATED

Meeting held 2024-05-30.

Combines 6 wordings of this item as funds reported it.

99.9% fund support · no official result

FOR 99.8%

The 132 asset managers below cast 99.9% of the shares they voted on this item FOR (105,804,279 for, 97,618 against).

FOR: 105,804,279 (99.9%)AGAINST: 97,618 (0.1%)ABSTAIN: 9,073 (0.0%)
Largest asset managers voting on “The ratification of the selection by the Audit Committee of Deloitte & Touche LLP as Iron Mountain Incorporate” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Vanguard45,127,0800 00For
Cohen & Steers13,030,4150 00For
BlackRock9,401,7370 00For
Fidelity7,813,5490 00For
Capital Group4,101,0770 00For
State Street3,727,9401,722 00For
Dimensional3,547,3440 00For
Charles Schwab3,197,6270 00For
DWS1,644,9360 00For
Invesco1,404,2370 00For
Prudential/PGIM1,373,9400 00For
TIAA1,272,0010 00For
John Hancock941,2170 00For
American Century679,0480 00For
Russell Investments494,0180 00For
Jackson National491,1030 00For
JPMorgan451,2990 00For
Northern Trust411,9580 00For
Neuberger Berman378,1800 00For
Lincoln Financial304,6090 00For
PIONEER SERIES TRUST II300,2170 00For
T. Rowe Price298,8180 00For
Apollo Diversified Real Estate Fund294,2500 00For
Pacer Funds Trust292,9730 00For
Equitable269,8466,000 00For

Showing the 25 largest of 132 asset managers. See all 132 in the interactive database.

15. Advisory Vote to Ratify Named Executive Officers' Compensation

SECTION 14A SAY-ON-PAY VOTESCOMPENSATION

Meeting held 2024-05-30.

81% fund support · no official result

FOR 81%AGAINST 19%

The 28 asset managers below cast 81% of the shares they voted on this item FOR (1,888,745 for, 438,826 against).

FOR: 1,888,745 (81.1%)AGAINST: 438,826 (18.9%)
Largest asset managers voting on “Advisory Vote to Ratify Named Executive Officers' Compensation” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
JPMorgan703,2930 00For
ADAGE CAPITAL PARTNERS GP, L.L.C.286,3520 00For
HEITMAN REAL ESTATE SECURITIES LLC228,4600 00For
TD ASSET MANAGEMENT INC159,0910 00For
STOREBRAND ASSET MANAGEMENT AS155,2470 00For
Union Investment Privatfonds GmbH0134,000 00Against
APG Asset Management US Inc.129,1870 00For
NORDEA INVESTMENT MANAGEMENT AB097,624 00Against
Cardano Risk Management B.V.084,622 00Against
Bluerock Total Income (plus) Real Estate Fund80,8500 00For
Desjardins Global Asset Management Inc.073,926 00Against
FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND71,2840 00For
Tredje AP-fonden046,830 00Against
Empower33,3710 00For
OSSIAM18,7590 00For
Uniplan Investment Counsel, Inc.12,9210 00For
Dorsey Wright & Associates4,0300 00For
TOBAM1,7740 00For
Regime de rentes du Mouvement Desjardins01,684 00Against
CIDEL ASSET MANAGEMENT INC1,4900 00For
Tidal Trust III7370 00For
Convergence Investment Partners, LLC6700 00For
Empirical Financial Services, LLC d.b.a. Empirical Wealth Ma6090 00For
Arjuna Capital5750 00For
Genus Capital Management Inc.0140 00Against

Showing the 25 largest of 28 asset managers. See all 28 in the interactive database.

16. 14A Executive Compensation

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2024-05-30.

Combines 2 wordings of this item as funds reported it.

99.8% fund support · no official result

FOR 99.8%

The 9 asset managers below cast 99.8% of the shares they voted on this item FOR (25,981 for, 34 against).

FOR: 25,981 (99.9%)AGAINST: 34 (0.1%)
Largest asset managers voting on “14A Executive Compensation” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Waterfront Capital Partners, LLC10,5760 00For
ZIMMERMANN INVESTMENT MANAGEMENT & PLANNING LLC6,3080 00For
Pinnacle Family Advisors, LLC5,2170 00For
Sculati Wealth Management, LLC2,7500 00For
Baker Avenue Asset Management, LP6540 00For
GRIMES & COMPANY, INC.4080 00For
Waverly Advisors, LLC680 00For
NICHOLS & PRATT ADVISERS LLP /MA034 00Against
Port Capital LLC00 00--

17. Amend Certificate of Incorporation to Limit the Liability of Certain Officers

CORPORATE GOVERNANCE

Meeting held 2024-05-30.

100% fund support · no official result

FOR 100%

The 4 asset managers below cast 100% of the shares they voted on this item FOR (114,973 for, 0 against).

FOR: 114,973 (100.0%)
Largest asset managers voting on “Amend Certificate of Incorporation to Limit the Liability of Certain Officers” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Bluerock Total Income (plus) Real Estate Fund80,8500 00For
Empower33,3710 00For
Tidal Trust III7370 00For
Brighthouse150 00For

18. Ratify Deloitte & Touche LLP as Auditors

AUDIT-RELATED

Meeting held 2024-05-30.

100% fund support · no official result

FOR 100%

The 4 asset managers below cast 100% of the shares they voted on this item FOR (114,973 for, 0 against).

FOR: 114,973 (100.0%)
Largest asset managers voting on “Ratify Deloitte & Touche LLP as Auditors” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Bluerock Total Income (plus) Real Estate Fund80,8500 00For
Empower33,3710 00For
Tidal Trust III7370 00For
Brighthouse150 00For

19. The approval of a non-binding, advisory resolution approving the compensation of our named executive officers as described in the Iron Mountain Incorporated Proxy Statement.

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2025-05-29 (outside the 2023-2024 season's 1 July to 30 June window; reported in this season's filings).

100% fund support · no official result

FOR 100%

The 3 asset managers below cast 100% of the shares they voted on this item FOR (720 for, 0 against).

FOR: 720 (100.0%)
Largest asset managers voting on “The approval of a non-binding, advisory resolution approving the compensation of our named executive officers ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
MBA Advisors LLC5000 00For
Freedom Day Solutions, LLC1200 00For
Foster Victor Wealth Advisors, LLC1000 00For

20. The ratification of the selection by the Audit Committee of Deloitte & Touche LLP as Iron Mountain Incorporated's independent registered public accounting firm for the year ending December 31, 2024.

AUDIT-RELATED

Meeting held 2024-05-30.

100% fund support · no official result

FOR 100%

The 2 asset managers below cast 100% of the shares they voted on this item FOR (2,199 for, 0 against).

FOR: 2,199 (100.0%)
Largest asset managers voting on “The ratification of the selection by the Audit Committee of Deloitte & Touche LLP as Iron Mountain Incorpo” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
HC CAPITAL TRUST2,1890 00For
Institutional Investment Strategy Fund100 00For

21. The approval of a non-binding, advisory resolution approving the compensation of our named executive officers described in the Iron Mountain Incorporated Proxy Statement.

SECTION 14A SAY-ON-PAY VOTES

Meeting held 2024-05-30.

100% fund support · no official result

FOR 100%

The 2 asset managers below cast 100% of the shares they voted on this item FOR (11,196 for, 0 against).

FOR: 11,196 (100.0%)
Largest asset managers voting on “The approval of a non-binding, advisory resolution approving the compensation of our named executive officers ” at IRON MOUNTAIN INC., 2023-2024
Asset managerForAgainst AbstainWithheldVote
Orion Porfolio Solutions, LLC5,5980 00For
Orion Portfolio Solutions, LLC5,5980 00For

Largest IRON MOUNTAIN INC. shareholders voting in 2023-2024

Ranked by the number of IRON MOUNTAIN INC. shares each manager voted on the most widely held ballot item of the 2023-2024 meeting, shown as a share of the 293,085,683 shares outstanding at the time of that meeting.

Top IRON MOUNTAIN INC. shareholders by shares voted, 2023-2024
#Asset manager % of shares outstanding
1Vanguard 15.83%
2BlackRock 6.20%
3Cohen & Steers 5.59%
4Fidelity 3.65%
5Capital Group 2.80%
6GEODE CAPITAL MANAGEMENT, LLC 2.48%
7Charles Schwab 2.20%
8Daiwa Securities Group Inc. 1.52%
9Dimensional 1.46%
10Northern Trust 1.29%

Reported IRON MOUNTAIN INC. ownership

Positions disclosed to the SEC on Schedules 13D and 13G, Form 13F and the company’s own proxy statement (DEF 14A).

IRON MOUNTAIN INC. beneficial owners on record for the 2023-2024 proxy season
Holder % outstanding Disclosure
Vanguard Group 16.12% 13F
BlackRock 10.82% 13F
Cohen & Steers, Inc. 7.82% DEF14A
State Street 4.71% 13F
FMR (Fidelity) 2.68% 13F
Geode Capital 2.50% 13F
Dimensional Fund Advisors 1.46% 13F
Morgan Stanley 1.23% 13F
Charles Schwab 1.10% 13F
Northern Trust 0.99% 13F

Percentages above are of 293,085,683 shares outstanding, as reported by IRON MOUNTAIN INC. on its Form 10-Q dated 2024-03-31 (see the filing on EDGAR). This is the count contemporaneous with the 2023-2024 meeting, so the percentages are the ones that were true then, not ones restated against today’s share count.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered investment companies and institutional managers disclose how they voted every proxy, and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from IRON MOUNTAIN INC.’s 10-Q dated 2024-03-31. This page is a static snapshot rebuilt weekly on 02 October 2026; a live search always shows the current data.

At IRON MOUNTAIN INC.'s shareholder meeting held 2024-05-30, in the 2023-2024 proxy season, 740 asset managers reported how they voted in their SEC Form N-PX filings, covering 10,351 separate fund positions. Their filings are grouped here into 21 reported items; because filers word the same ballot item differently, that can be more than the number of items on the ballot. IRON MOUNTAIN INC.'s own Form 8-K tally for this meeting is published below, but no row in it could be matched to the most widely held item, so this page states no certified outcome for that item. On that item — The approval of a non-binding, advisory resolution approving the compensation of our named… — the reporting funds cast 98% of the shares they voted in favour (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side). That is the aggregate of those managers' own N-PX disclosures, not the company's certified result, and the funds are a subset of all shareholders.

IRON MOUNTAIN INC. proxy season coverage: 2023-2024 (this page) · 2024-2025 · 2025-2026.