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Mercury Systems, Inc. 2025-2026 Proxy Voting Records

Compiled from SEC Form N-PX filings and Mercury Systems, Inc.’s Form 8-K, filed 2025-10-28 (Item 5.07 on EDGAR). Page generated 02 October 2026.

12Reported items
324Asset managers
2,663Fund votes
2025-10-22Meeting date

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

Explore Mercury Systems, Inc. in the interactive database Compare manager voting policies

Official 2025-2026 meeting results reported by Mercury Systems, Inc.

These tallies are Mercury Systems, Inc.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed 2025-10-28 (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.

Mercury Systems, Inc. — official shareholder meeting results, meeting held 2025-10-22
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Outcome
Elect Director: William L. Ballhaus, Class I Director	53,285,066	--	--	1,649,243	2,109,616	Majority: yes
Elect Director: Lisa S. Disbrow, Class I Director	52,803,960	--	--	2,130,349	2,109,616	Majority: yes
Elect Director: Howard L. Lance, Class I Director	51,139,933	--	--	3,794,376	2,109,616	Majority: yes
Elect Director: Jean Bua, Class II Director	54,137,080	--	--	797,229	2,109,616	Majority: yes
Proposal 2: To approve, on an advisory basis, the compensation of the Company's named executive officers:	52,430,029	2,468,655	35,625	--	2,109,616	Majority: yes
Proposal 3: To approve the Company's 2025 Long Term Incentive Plan:	45,628,561	9,229,049	76,699	--	2,109,616	Majority: yes
Proposal 4: To ratify the appointment of KPMG LLP as the Company's independent registered public accounting firm for fiscal 2026:	56,369,114	626,733	48,078	--	0	Majority: yes

Source: Mercury Systems, Inc., Form 8-K, filed with the SEC on 2025-10-28 — read the filing on EDGAR.

How asset managers voted at the Mercury Systems, Inc. 2025-2026 meeting

Each item below shows how the 324 asset managers that disclosed a Mercury Systems, 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 Mercury Systems, 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. To approve, on an advisory basis, the compensation of our named executive officers.

SECTION 14A SAY-ON-PAY VOTESMajority of the votes cast: yes

Combines 7 wordings of this item as funds reported it.

96% Majority: yes · of votes cast

FOR 96%

FOR: 52,430,029AGAINST: 2,468,655

Mercury Systems, Inc.’s own tally for this item (“Proposal 2: To approve, on an advisory basis, the compensation of the Company's named executive officers:”): 52,430,029 for, 2,468,655 against, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 90% for, 4% against (94% of the company cast a for/against vote).

The 322 asset managers below cast 98% of the shares they voted on this item FOR. Fund share totals are not shown for this item: fund-reported shares overlap across filings (an adviser and the funds it manages can each report the same shares), and here their sum exceeds the company's reported shares outstanding.

FOR 98%

FOR: 98.0%AGAINST: 1.9%ABSTAIN: 0.0%NOT VOTED: 0.0%

Largest asset managers voting on “To approve, on an advisory basis, the compensation of our named executive officers.” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Against	Vote
Jana Partners	5,959,481	0	For
BlackRock	5,446,904	22,402	For
Vanguard	5,170,732	3,530	For
Fidelity	4,259,121	0	For
T. Rowe Price	2,816,144	0	For
State Street	2,717,376	1,477	For
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	2,710,680	0	For
Victory Capital	2,180,232	0	For
CONESTOGA FUNDS	1,473,283	0	For
First Trust	1,458,593	0	For
Loomis Sayles	1,335,204	0	For
GEODE CAPITAL MANAGEMENT, LLC	1,309,841	0	For
Charles Schwab	1,230,124	0	For
Neuberger Berman	1,209,290	988	For
BAMCO INC /NY/	1,116,649	0	For
Allspring	1,000,856	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	857,290	0	For
Conestoga Capital Advisors, LLC	774,752	0	For
Goldman Sachs	705,518	0	For
SNYDER CAPITAL MANAGEMENT L P	680,887	0	For
SEGALL BRYANT & HAMILL, LLC	595,605	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Northern Trust	516,402	0	For
Invesco	492,896	0	For

Showing the 25 largest of 322 asset managers. See all 322 in the interactive database.

2. To approve our 2025 Long Term Incentive Plan.

SECTION 14A SAY-ON-PAY VOTESMajority of the votes cast: yes

Combines 2 wordings of this item as funds reported it.

83% Majority: yes · of votes cast

FOR 83%AGAINST 17%

FOR: 45,628,561AGAINST: 9,229,049

Mercury Systems, Inc.’s own tally for this item (“Proposal 3: To approve the Company's 2025 Long Term Incentive Plan:”): 45,628,561 for, 9,229,049 against, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 78% for, 16% against (94% of the company cast a for/against vote).

The 95 asset managers below cast 84% of the shares they voted on this item FOR (24,112,620 for, 4,578,028 against).

FOR 84%AGAINST 16%

FOR: 24,112,620 (84.0%)AGAINST: 4,578,028 (16.0%)

Largest asset managers voting on “To approve our 2025 Long Term Incentive Plan.” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Against	Vote
Vanguard	4,971,889	3,540	For
BlackRock	4,284,493	0	For
Fidelity	2,791,492	0	For
State Street	1,807,928	971	For
CONESTOGA FUNDS	0	1,473,283	Against
First Trust	1,451,223	0	For
T. Rowe Price	1,068,296	0	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	0	920,380	Against
Dimensional	639,881	0	For
Charles Schwab	0	587,296	Against
WILLIAM BLAIR FUNDS	542,837	0	For
Jackson National	281,255	196,269	For
Invesco	466,672	0	For
Loomis Sayles	0	449,435	Against
Global X	0	444,231	Against
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
John Hancock	203,556	0	For
Segall Bryant & Hamill Trust	189,878	0	For

Showing the 25 largest of 95 asset managers. See all 95 in the interactive database.

3. To ratify the appointment of KPMG LLP as our independent registered public accounting firm for fiscal 2026.

AUDIT-RELATEDMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%

FOR: 56,369,114AGAINST: 626,733

Mercury Systems, Inc.’s own tally for this item (“Proposal 4: To ratify the appointment of KPMG LLP as the Company's independent registered public accounting firm for fiscal 2026:”): 56,369,114 for, 626,733 against, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 96% for, 1% against (98% of the company cast a for/against vote).

The 95 asset managers below cast 99.9% of the shares they voted on this item FOR (28,743,654 for, 1,777 against).

FOR 99.9%

FOR: 28,743,654 (100.0%)AGAINST: 1,777 (0.0%)ABSTAIN: 2,126 (0.0%)

Largest asset managers voting on “To ratify the appointment of KPMG LLP as our independent registered public accounting firm for fiscal 2026.” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Against	Vote
Vanguard	4,975,428	1	For
BlackRock	4,284,493	0	For
Fidelity	2,791,492	0	For
State Street	1,808,707	192	For
CONESTOGA FUNDS	1,473,283	0	For
First Trust	1,451,223	0	For
T. Rowe Price	1,068,296	0	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	639,881	0	For
Charles Schwab	587,296	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Jackson National	477,524	0	For
Invesco	466,672	0	For
Loomis Sayles	449,435	0	For
Global X	444,231	0	For
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
John Hancock	203,556	0	For
Segall Bryant & Hamill Trust	189,878	0	For

Showing the 25 largest of 95 asset managers. See all 95 in the interactive database.

4. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors have been duly elected and qualified: William L. Ballhaus

DIRECTOR ELECTIONS

Combines 5 wordings of this item as funds reported it.

100% fund support · no official result

FOR 99.4%

The 72 asset managers below cast 100% of the shares they voted on this item FOR (21,014,670 for, 0 against).

FOR: 21,014,670 (99.4%)ABSTAIN: 123,871 (0.6%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
Vanguard	4,975,427	2	For
Fidelity	2,791,492	0	For
State Street	1,808,830	69	For
First Trust	1,451,223	0	For
T. Rowe Price	1,068,296	0	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	639,881	0	For
Charles Schwab	587,296	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Invesco	466,672	0	For
Global X	444,231	0	For
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
Segall Bryant & Hamill Trust	189,878	0	For
Prudential/PGIM	167,633	0	For
Principal	49,251	116,303	Abstain
Equitable	139,028	0	For
Northern Lights Fund Trust	137,012	0	For
Brighthouse	133,775	2,126	For

Showing the 25 largest of 72 asset managers. See all 72 in the interactive database.

5. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors have been duly elected and qualified: Lisa S. Disbrow

DIRECTOR ELECTIONS

Combines 5 wordings of this item as funds reported it.

100% fund support · no official result

FOR 97%

The 72 asset managers below cast 100% of the shares they voted on this item FOR (20,494,656 for, 0 against).

FOR: 20,494,656 (97.0%)ABSTAIN: 643,885 (3.0%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
Vanguard	4,975,426	3	For
Fidelity	2,791,492	0	For
State Street	1,808,899	0	For
First Trust	1,451,223	0	For
T. Rowe Price	553,372	514,924	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	639,881	0	For
Charles Schwab	587,296	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Invesco	466,672	0	For
Global X	444,231	0	For
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
Segall Bryant & Hamill Trust	189,878	0	For
Prudential/PGIM	159,233	8,400	For
Principal	49,251	116,303	Abstain
Equitable	139,028	0	For
Northern Lights Fund Trust	137,012	0	For
Brighthouse	133,775	2,126	For

Showing the 25 largest of 72 asset managers. See all 72 in the interactive database.

6. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors have been duly elected and qualified: Howard L. Lance

DIRECTOR ELECTIONS

Combines 5 wordings of this item as funds reported it.

100% fund support · no official result

FOR 95%

The 72 asset managers below cast 100% of the shares they voted on this item FOR (19,983,273 for, 0 against).

FOR: 19,983,273 (94.5%)ABSTAIN: 1,155,268 (5.5%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
Vanguard	4,971,896	3,533	For
Fidelity	2,791,492	0	For
State Street	1,808,899	0	For
First Trust	1,451,223	0	For
T. Rowe Price	553,372	514,924	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	639,881	0	For
Charles Schwab	587,296	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Invesco	0	466,672	Abstain
Global X	444,231	0	For
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
Segall Bryant & Hamill Trust	189,878	0	For
Prudential/PGIM	159,233	8,400	For
Principal	49,251	116,303	Abstain
Equitable	103,218	35,810	For
Northern Lights Fund Trust	137,012	0	For
Brighthouse	133,775	2,126	For

Showing the 25 largest of 72 asset managers. See all 72 in the interactive database.

7. TO ELECT ONE CLASS II DIRECTOR NOMINATED BY THE BOARD OF DIRECTORS, TO SERVE FOR A ONE-YEAR TERM, AND UNTIL HER SUCCESSOR HAS BEEN DULY ELECTED AND QUALIFIED: JEAN BUA

DIRECTOR ELECTIONS

Combines 3 wordings of this item as funds reported it.

100% fund support · no official result

FOR 99.4%

The 71 asset managers below cast 100% of the shares they voted on this item FOR (21,018,821 for, 0 against).

FOR: 21,018,821 (99.4%)ABSTAIN: 118,430 (0.6%)

Largest asset managers voting on “TO ELECT ONE CLASS II DIRECTOR NOMINATED BY THE BOARD OF DIRECTORS, TO SERVE FOR A ONE-YEAR TERM, AND UNTIL HE” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
Vanguard	4,975,428	1	For
Fidelity	2,791,492	0	For
State Street	1,808,899	0	For
First Trust	1,451,223	0	For
T. Rowe Price	1,068,296	0	For
Victory Capital	941,430	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	920,380	0	For
Dimensional	639,881	0	For
Charles Schwab	587,296	0	For
WILLIAM BLAIR FUNDS	542,837	0	For
Invesco	466,672	0	For
Global X	444,231	0	For
OBERWEIS FUNDS	398,500	0	For
Allspring	368,953	0	For
Lord Abbett	318,035	0	For
TIAA	311,284	0	For
Goldman Sachs	307,659	0	For
Neuberger Berman	304,533	0	For
Columbia Threadneedle	295,283	0	For
Segall Bryant & Hamill Trust	189,878	0	For
Prudential/PGIM	167,633	0	For
Principal	49,251	116,303	Abstain
Equitable	139,028	0	For
Northern Lights Fund Trust	137,012	0	For
Brighthouse	133,775	2,126	For

Showing the 25 largest of 71 asset managers. See all 71 in the interactive database.

8. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors are duly elected and qualified, and to elect one Class II director nominated by the Board of Directors, to serve for a one-year term, until her successor is duly elected and qualified. Howard L. Lance

DIRECTOR ELECTIONSMajority of the votes cast: yes

93% Majority: yes · of votes cast

FOR 93%

FOR: 51,139,933WITHHELD: 3,794,376

Mercury Systems, Inc.’s own tally for this item (“Elect Director: Howard L. Lance, Class I Director”): 51,139,933 for, 3,794,376 withheld, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 87% for, 6% withheld (94% of the company cast a for/withheld vote).

The 25 asset managers below cast 100% of the shares they voted on this item FOR (7,460,576 for, 0 against).

FOR 98%

FOR: 7,460,576 (98.0%)ABSTAIN: 148,440 (2.0%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
BlackRock	4,284,493	0	For
CONESTOGA FUNDS	1,473,283	0	For
Jackson National	477,524	0	For
Loomis Sayles	449,435	0	For
John Hancock	203,556	0	For
RBB FUND, INC.	2,290	146,915	Abstain
Calamos	116,653	0	For
QUANTITATIVE MASTER SERIES LLC	88,539	0	For
TRUST FOR PROFESSIONAL MANAGERS	75,881	0	For
LKCM Funds	73,637	0	For
RBC FUNDS TRUST	41,064	0	For
Aristotle Funds Series Trust	38,394	0	For
Bridge Builder Trust	37,188	0	For
Allianz	18,750	0	For
Securian Funds Trust	15,137	0	For
Investment Managers Series Trust	14,949	0	For
MASTER INVESTMENT PORTFOLIO	12,624	0	For
Gabelli	10,484	0	For
NEEDHAM FUNDS INC	10,000	0	For
RBB Fund Trust	9,457	0	For
Pacer Funds Trust	5,964	0	For
EA Series Trust	0	1,525	Abstain
Innovator ETFs Trust	714	0	For
NORTHERN LIGHTS FUND TRUST II	343	0	For
WILSHIRE MUTUAL FUNDS INC	217	0	For

9. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors are duly elected and qualified, and to elect one Class II director nominated by the Board of Directors, to serve for a one-year term, until her successor is duly elected and qualified. Jean Bua

DIRECTOR ELECTIONSMajority of the votes cast: yes

99% Majority: yes · of votes cast

FOR 99%

FOR: 54,137,080WITHHELD: 797,229

Mercury Systems, Inc.’s own tally for this item (“Elect Director: Jean Bua, Class II Director”): 54,137,080 for, 797,229 withheld, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 93% for, 1% withheld (94% of the company cast a for/withheld vote).

The 25 asset managers below cast 100% of the shares they voted on this item FOR (7,462,101 for, 0 against).

FOR 98%

FOR: 7,462,101 (98.1%)ABSTAIN: 146,915 (1.9%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
BlackRock	4,284,493	0	For
CONESTOGA FUNDS	1,473,283	0	For
Jackson National	477,524	0	For
Loomis Sayles	449,435	0	For
John Hancock	203,556	0	For
RBB FUND, INC.	2,290	146,915	Abstain
Calamos	116,653	0	For
QUANTITATIVE MASTER SERIES LLC	88,539	0	For
TRUST FOR PROFESSIONAL MANAGERS	75,881	0	For
LKCM Funds	73,637	0	For
RBC FUNDS TRUST	41,064	0	For
Aristotle Funds Series Trust	38,394	0	For
Bridge Builder Trust	37,188	0	For
Allianz	18,750	0	For
Securian Funds Trust	15,137	0	For
Investment Managers Series Trust	14,949	0	For
MASTER INVESTMENT PORTFOLIO	12,624	0	For
Gabelli	10,484	0	For
NEEDHAM FUNDS INC	10,000	0	For
RBB Fund Trust	9,457	0	For
Pacer Funds Trust	5,964	0	For
EA Series Trust	1,525	0	For
Innovator ETFs Trust	714	0	For
NORTHERN LIGHTS FUND TRUST II	343	0	For
WILSHIRE MUTUAL FUNDS INC	217	0	For

10. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors are duly elected and qualified, and to elect one Class II director nominated by the Board of Directors, to serve for a one-year term, until her successor is duly elected and qualified. Lisa S. Disbrow

DIRECTOR ELECTIONSMajority of the votes cast: yes

96% Majority: yes · of votes cast

FOR 96%

FOR: 52,803,960WITHHELD: 2,130,349

Mercury Systems, Inc.’s own tally for this item (“Elect Director: Lisa S. Disbrow, Class I Director”): 52,803,960 for, 2,130,349 withheld, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 90% for, 4% withheld (94% of the company cast a for/withheld vote).

The 25 asset managers below cast 100% of the shares they voted on this item FOR (7,462,101 for, 0 against).

FOR 98%

FOR: 7,462,101 (98.1%)ABSTAIN: 146,915 (1.9%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
BlackRock	4,284,493	0	For
CONESTOGA FUNDS	1,473,283	0	For
Jackson National	477,524	0	For
Loomis Sayles	449,435	0	For
John Hancock	203,556	0	For
RBB FUND, INC.	2,290	146,915	Abstain
Calamos	116,653	0	For
QUANTITATIVE MASTER SERIES LLC	88,539	0	For
TRUST FOR PROFESSIONAL MANAGERS	75,881	0	For
LKCM Funds	73,637	0	For
RBC FUNDS TRUST	41,064	0	For
Aristotle Funds Series Trust	38,394	0	For
Bridge Builder Trust	37,188	0	For
Allianz	18,750	0	For
Securian Funds Trust	15,137	0	For
Investment Managers Series Trust	14,949	0	For
MASTER INVESTMENT PORTFOLIO	12,624	0	For
Gabelli	10,484	0	For
NEEDHAM FUNDS INC	10,000	0	For
RBB Fund Trust	9,457	0	For
Pacer Funds Trust	5,964	0	For
EA Series Trust	1,525	0	For
Innovator ETFs Trust	714	0	For
NORTHERN LIGHTS FUND TRUST II	343	0	For
WILSHIRE MUTUAL FUNDS INC	217	0	For

11. To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and in each case until their successors are duly elected and qualified, and to elect one Class II director nominated by the Board of Directors, to serve for a one-year term, until her successor is duly elected and qualified. William L. Ballhaus

DIRECTOR ELECTIONSMajority of the votes cast: yes

97% Majority: yes · of votes cast

FOR 97%

FOR: 53,285,066WITHHELD: 1,649,243

Mercury Systems, Inc.’s own tally for this item (“Elect Director: William L. Ballhaus, Class I Director”): 53,285,066 for, 1,649,243 withheld, per its Form 8-K filed 2025-10-28 (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 58,454,728 outstanding shares: 91% for, 3% withheld (94% of the company cast a for/withheld vote).

The 25 asset managers below cast 100% of the shares they voted on this item FOR (7,462,101 for, 0 against).

FOR 98%

FOR: 7,462,101 (98.1%)ABSTAIN: 146,915 (1.9%)

Largest asset managers voting on “To elect three Class I directors nominated by the Board of Directors, each to serve for a three-year term, and” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Abstain	Vote
BlackRock	4,284,493	0	For
CONESTOGA FUNDS	1,473,283	0	For
Jackson National	477,524	0	For
Loomis Sayles	449,435	0	For
John Hancock	203,556	0	For
RBB FUND, INC.	2,290	146,915	Abstain
Calamos	116,653	0	For
QUANTITATIVE MASTER SERIES LLC	88,539	0	For
TRUST FOR PROFESSIONAL MANAGERS	75,881	0	For
LKCM Funds	73,637	0	For
RBC FUNDS TRUST	41,064	0	For
Aristotle Funds Series Trust	38,394	0	For
Bridge Builder Trust	37,188	0	For
Allianz	18,750	0	For
Securian Funds Trust	15,137	0	For
Investment Managers Series Trust	14,949	0	For
MASTER INVESTMENT PORTFOLIO	12,624	0	For
Gabelli	10,484	0	For
NEEDHAM FUNDS INC	10,000	0	For
RBB Fund Trust	9,457	0	For
Pacer Funds Trust	5,964	0	For
EA Series Trust	1,525	0	For
Innovator ETFs Trust	714	0	For
NORTHERN LIGHTS FUND TRUST II	343	0	For
WILSHIRE MUTUAL FUNDS INC	217	0	For

12. Approve Omnibus Stock Plan

COMPENSATION

69% fund support · no official result

FOR 69%AGAINST 31%

The 4 asset managers below cast 69% of the shares they voted on this item FOR (42,922 for, 18,988 against).

FOR: 42,922 (69.3%)AGAINST: 18,988 (30.7%)

Largest asset managers voting on “Approve Omnibus Stock Plan” at Mercury Systems, Inc., 2025-2026
Asset manager	For	Against	Vote
Empower	37,837	0	For
JPMorgan	0	18,247	Against
FORUM FUNDS	5,085	0	For
CLEARWATER INVESTMENT TRUST	0	741	Against

Largest Mercury Systems, Inc. shareholders voting in 2025-2026

Ranked by the number of Mercury Systems, Inc. shares each manager voted on the most widely held ballot item of the 2025-2026 meeting, shown as a share of the 58,454,728 shares outstanding at the time of that meeting.

Top Mercury Systems, Inc. shareholders by shares voted, 2025-2026
#	Asset manager	% of shares outstanding
1	Jana Partners	10.20%
2	BlackRock	9.36%
3	Vanguard	8.85%
4	Fidelity	7.29%
5	T. Rowe Price	4.82%
6	State Street	4.65%
7	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	4.64%
8	Victory Capital	3.73%
9	CONESTOGA FUNDS	2.52%
10	First Trust	2.50%

Reported Mercury Systems, Inc. ownership

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

Mercury Systems, Inc. beneficial owners on record for the 2025-2026 proxy season
Holder	% outstanding	Disclosure
BlackRock	15.26%	13F
JANA Partners Management, LP	7.04%	13D
State Street	6.61%	13F
Invesco	4.18%	13F
Geode Capital	2.61%	13F
Dimensional Fund Advisors	2.10%	13F
Goldman Sachs	2.05%	13F
T. Rowe Price	1.76%	13F
FMR (Fidelity)	1.55%	13F
Wellington Management	1.29%	13F

Percentages above are of 58,454,728 shares outstanding, as reported by Mercury Systems, Inc. on its Form 10-Q dated 2024-09-27 (see the filing on EDGAR). This is the count contemporaneous with the 2025-2026 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 Mercury Systems, Inc.’s 10-Q dated 2024-09-27. This page is a static snapshot rebuilt weekly on 02 October 2026; a live search always shows the current data.

At Mercury Systems, Inc.'s shareholder meeting held 2025-10-22, in the 2025-2026 proxy season, 324 asset managers reported how they voted in their SEC Form N-PX filings, covering 2,663 separate fund positions. Their filings are grouped here into 12 reported items; because filers word the same ballot item differently, that can be more than the number of items on the ballot. On the most widely held item on that ballot — To approve, on an advisory basis, the compensation of our named executive officers. — FOR was 96% of the votes cast (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), which is more than half. Whether the item was approved is for the filing to say; that statement has not been read for this item. Source: Mercury Systems, Inc.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on 2025-10-28.

Mercury Systems, Inc. proxy season coverage: 2023-2024 · 2024-2025 · 2025-2026 (this page).