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COSTAR GROUP INC. 2024-2025 Proxy Voting Records

Compiled from SEC Form N-PX filings and COSTAR GROUP INC.’s Form 8-K, filed 2025-06-27 (Item 5.07 on EDGAR). Page generated 02 October 2026.

18Reported items
804Asset managers
9,905Fund votes
2025-06-26Meeting date

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

Explore COSTAR GROUP INC. in the interactive database Compare manager voting policies

Official 2024-2025 meeting results reported by COSTAR GROUP INC.

These tallies are COSTAR GROUP INC.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed 2025-06-27 (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.

COSTAR GROUP INC. — official shareholder meeting results, meeting held 2025-06-26
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Outcome
Elect Director: Louise S. Sams	374,959,663	2,325,005	209,471	--	8,765,226	Majority: yes
Elect Director: Andrew C. Florance	376,754,613	529,171	210,355	--	8,765,226	Majority: yes
Elect Director: John L. Berisford	374,116,793	3,164,854	212,492	--	8,765,226	Majority: yes
Elect Director: Angelique G. Brunner	370,955,710	6,307,436	230,993	--	8,765,226	Majority: yes
Elect Director: Rachel C. Glaser	377,002,072	282,183	209,884	--	8,765,226	Majority: yes
Elect Director: John W. Hill	364,696,573	12,586,031	211,535	--	8,765,226	Majority: yes
Elect Director: Christine M. McCarthy	376,866,490	417,851	209,798	--	8,765,226	Majority: yes
Elect Director: Robert W. Musslewhite	363,644,642	13,637,862	211,635	--	8,765,226	Majority: yes
Proposal 2: The appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025 was ratified upon the following vote:	367,421,785	18,615,164	222,416	--	--	Majority: yes
Proposal 3: The advisory resolution to approve the Company's executive compensation was approved upon the following vote:	202,754,871	174,302,322	436,946	--	8,765,226	Majority: yes
Proposal 4: The 2025 Plan was approved upon the following vote:	369,269,515	7,968,343	256,281	--	8,765,226	Majority: yes
Proposal 5: The stockholder proposal regarding support for transparency in political spending was not approved upon the following vote:	124,189,745	251,384,311	1,920,083	--	8,765,226	Majority: no

Source: COSTAR GROUP INC., Form 8-K, filed with the SEC on 2025-06-27 — read the filing on EDGAR.

How asset managers voted at the COSTAR GROUP INC. 2024-2025 meeting

Each item below shows how the 804 asset managers that disclosed a COSTAR GROUP 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 COSTAR GROUP 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. Proposal to approve, on an advisory basis, the Company's executive compensation.

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

Meeting held 2025-06-26.

Combines 17 wordings of this item as funds reported it.

53.8% Majority: yes · of votes cast

FOR 53.8%AGAINST 46.2%

FOR: 202,754,871AGAINST: 174,302,322

COSTAR GROUP INC.’s own tally for this item (“Proposal 3: The advisory resolution to approve the Company's executive compensation was approved upon the following vote:”): 202,754,871 for, 174,302,322 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 49.5% for, 43% against (92% of the company cast a for/against vote).

The 762 asset managers below cast 58% 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 58%AGAINST 42%

FOR: 57.8%AGAINST: 42.1%ABSTAIN: 0.0%NOT VOTED: 0.0%NO VOTE: 0.0%

Largest asset managers voting on “Proposal to approve, on an advisory basis, the Company's executive compensation.” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	72,646,269	593,589	For
Capital Group	46,861	23,230,922	Against
PRINCIPAL GLOBAL INVESTORS	15,873,722	1,865,468	For
BAMCO INC /NY/	17,356,708	0	For
BlackRock	5,951	15,468,337	Against
Principal	13,644,667	1,271,546	For
State Street	14,434,922	325,115	For
Fidelity	11,022,660	2,544,393	For
T. Rowe Price	0	12,239,029	Against
GEODE CAPITAL MANAGEMENT, LLC	12,057,486	0	For
BARON SELECT FUNDS	9,182,475	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	7,329,017	14,826	For
POLEN CAPITAL MANAGEMENT LLC	6,337,429	0	For
Charles Schwab	2,307	6,099,420	Against
Invesco	0	5,938,147	Against
MACQUARIE INVESTMENT MANAGEMENT BUSINESS TRUST	0	5,373,567	Against
AMCAP FUND	0	5,372,841	Against
MFS	5,043,519	0	For
Waddell & Reed	0	3,929,677	Against
INVESTMENT CO OF AMERICA	0	3,897,278	Against
BAILLIE GIFFORD OVERSEAS LTD	3,801,118	0	For
Amundi	0	3,639,722	Against
Capital Research Global Investors	0	3,420,935	Against

Showing the 25 largest of 762 asset managers. See all 762 in the interactive database.

2. Proposal to ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for 2025.

AUDIT-RELATEDMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 7 wordings of this item as funds reported it.

95% Majority: yes · of votes cast

FOR 95%

FOR: 367,421,785AGAINST: 18,615,164

COSTAR GROUP INC.’s own tally for this item (“Proposal 2: The appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025 was ratified upon the following vote:”): 367,421,785 for, 18,615,164 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 90% for, 5% against (94% of the company cast a for/against vote).

The 177 asset managers below cast 99.1% of the shares they voted on this item FOR (206,752,794 for, 1,676,355 against).

FOR 99.1%

FOR: 206,752,794 (99.2%)AGAINST: 1,676,355 (0.8%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal to ratify the appointment of Ernst & Young LLP as the Company's independent registered public account” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,609,826	4,676	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	12,221,769	0	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,330	69	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	449,125	1,203,522	Against
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	1,448,273	0	For
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 177 asset managers. See all 177 in the interactive database.

3. Proposal for the election of directors: Andrew C. Florance

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

99.8% Majority: yes · of votes cast

FOR 99.8%

FOR: 376,754,613AGAINST: 529,171

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Andrew C. Florance”): 376,754,613 for, 529,171 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 92% for, 0.2% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99.8% of the shares they voted on this item FOR (208,220,664 for, 208,480 against).

FOR 99.8%

FOR: 208,220,664 (99.9%)AGAINST: 208,480 (0.1%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Andrew C. Florance” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Vote
Vanguard	70,614,502	For
BlackRock	15,474,288	For
Principal	14,916,213	For
Fidelity	12,221,769	For
BARON SELECT FUNDS	9,182,475	For
Capital Group	8,477,196	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	For
AMCAP FUND	5,372,841	For
MFS	5,043,519	For
State Street	4,240,399	For
T. Rowe Price	4,079,928	For
Waddell & Reed	3,929,677	For
INVESTMENT CO OF AMERICA	3,897,278	For
Charles Schwab	3,022,496	For
Invesco	2,220,047	For
BNY Mellon	1,652,647	For
Columbia Threadneedle	1,616,667	For
Jackson National	1,610,325	For
FundVantage Trust	1,533,641	For
Federated Hermes	1,448,273	For
TIAA	993,101	For
Putnam	853,834	For
Lincoln Financial	821,468	For
Allspring	809,615	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

4. Proposal for the election of directors: Angelique G. Brunner

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 370,955,710AGAINST: 6,307,436

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Angelique G. Brunner”): 370,955,710 for, 6,307,436 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 91% for, 2% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99% of the shares they voted on this item FOR (205,813,609 for, 2,607,554 against).

FOR 99%

FOR: 205,813,609 (98.7%)AGAINST: 2,607,554 (1.3%)ABSTAIN: 27,078 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Angelique G. Brunner” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,614,502	0	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	11,118,962	1,102,807	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,399	0	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,609,983	42,664	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	0	1,448,273	Against
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

5. Proposal for the election of directors: Christine M. McCarthy

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 6 wordings of this item as funds reported it.

99.8% Majority: yes · of votes cast

FOR 99.8%

FOR: 376,866,490AGAINST: 417,851

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Christine M. McCarthy”): 376,866,490 for, 417,851 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 92% for, 0.2% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99.9% of the shares they voted on this item FOR (208,415,334 for, 13,810 against).

FOR 99.9%

FOR: 208,415,334 (100.0%)AGAINST: 13,810 (0.0%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Christine M. McCarthy” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Vote
Vanguard	70,614,502	For
BlackRock	15,474,288	For
Principal	14,916,213	For
Fidelity	12,221,769	For
BARON SELECT FUNDS	9,182,475	For
Capital Group	8,477,196	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	For
AMCAP FUND	5,372,841	For
MFS	5,043,519	For
State Street	4,240,399	For
T. Rowe Price	4,079,928	For
Waddell & Reed	3,929,677	For
INVESTMENT CO OF AMERICA	3,897,278	For
Charles Schwab	3,022,496	For
Invesco	2,220,047	For
BNY Mellon	1,652,647	For
Columbia Threadneedle	1,616,667	For
Jackson National	1,610,325	For
FundVantage Trust	1,533,641	For
Federated Hermes	1,448,273	For
TIAA	993,101	For
Putnam	853,834	For
Lincoln Financial	821,468	For
Allspring	809,615	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

6. Proposal for the election of directors: John L. Berisford

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 6 wordings of this item as funds reported it.

99.1% Majority: yes · of votes cast

FOR 99.1%

FOR: 374,116,793AGAINST: 3,164,854

COSTAR GROUP INC.’s own tally for this item (“Elect Director: John L. Berisford”): 374,116,793 for, 3,164,854 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 91% for, 0.8% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99% of the shares they voted on this item FOR (205,878,064 for, 2,551,080 against).

FOR 99%

FOR: 205,878,064 (98.8%)AGAINST: 2,551,080 (1.2%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: John L. Berisford” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,614,502	0	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	11,118,962	1,102,807	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,399	0	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,652,647	0	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	0	1,448,273	Against
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

7. Proposal for the election of directors: John W. Hill

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

97% Majority: yes · of votes cast

FOR 97%

FOR: 364,696,573AGAINST: 12,586,031

COSTAR GROUP INC.’s own tally for this item (“Elect Director: John W. Hill”): 364,696,573 for, 12,586,031 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 89% for, 3% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99.9% of the shares they voted on this item FOR (208,354,871 for, 74,273 against).

FOR 99.9%

FOR: 208,354,871 (100.0%)AGAINST: 74,273 (0.0%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: John W. Hill” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,614,501	1	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	12,221,769	0	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,330	69	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,652,647	0	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	1,448,273	0	For
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

8. Proposal for the election of directors: Louise S. Sams

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

99.3% Majority: yes · of votes cast

FOR 99.3%

FOR: 374,959,663AGAINST: 2,325,005

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Louise S. Sams”): 374,959,663 for, 2,325,005 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 92% for, 0.6% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99.8% of the shares they voted on this item FOR (208,171,824 for, 257,320 against).

FOR 99.8%

FOR: 208,171,824 (99.9%)AGAINST: 257,320 (0.1%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Louise S. Sams” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,609,827	4,675	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	12,221,769	0	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,399	0	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,652,647	0	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	1,448,273	0	For
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

9. Proposal for the election of directors: Rachel C. Glaser

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

99.9% Majority: yes · of votes cast

FOR 99.9%

FOR: 377,002,072AGAINST: 282,183

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Rachel C. Glaser”): 377,002,072 for, 282,183 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 92% for, 0.1% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 99.9% of the shares they voted on this item FOR (208,415,334 for, 13,810 against).

FOR 99.9%

FOR: 208,415,334 (100.0%)AGAINST: 13,810 (0.0%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Rachel C. Glaser” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Vote
Vanguard	70,614,502	For
BlackRock	15,474,288	For
Principal	14,916,213	For
Fidelity	12,221,769	For
BARON SELECT FUNDS	9,182,475	For
Capital Group	8,477,196	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	For
AMCAP FUND	5,372,841	For
MFS	5,043,519	For
State Street	4,240,399	For
T. Rowe Price	4,079,928	For
Waddell & Reed	3,929,677	For
INVESTMENT CO OF AMERICA	3,897,278	For
Charles Schwab	3,022,496	For
Invesco	2,220,047	For
BNY Mellon	1,652,647	For
Columbia Threadneedle	1,616,667	For
Jackson National	1,610,325	For
FundVantage Trust	1,533,641	For
Federated Hermes	1,448,273	For
TIAA	993,101	For
Putnam	853,834	For
Lincoln Financial	821,468	For
Allspring	809,615	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

10. Proposal for the election of directors: Robert W. Musslewhite

DIRECTOR ELECTIONSMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 5 wordings of this item as funds reported it.

96% Majority: yes · of votes cast

FOR 96%

FOR: 363,644,642AGAINST: 13,637,862

COSTAR GROUP INC.’s own tally for this item (“Elect Director: Robert W. Musslewhite”): 363,644,642 for, 13,637,862 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 89% for, 3% against (92% of the company cast a for/against vote).

The 176 asset managers below cast 98% of the shares they voted on this item FOR (205,176,528 for, 3,252,616 against).

FOR 98%

FOR: 205,176,528 (98.4%)AGAINST: 3,252,616 (1.6%)ABSTAIN: 19,098 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal for the election of directors: Robert W. Musslewhite” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,614,501	1	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	11,118,962	1,102,807	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,399	0	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,609,983	42,664	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	0	1,448,273	Against
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 176 asset managers. See all 176 in the interactive database.

11. Proposal to approve the CoStar Group, Inc. 2025 Stock Incentive Plan.

CAPITAL STRUCTUREMajority of the votes cast: yes

Meeting held 2025-06-26.

Combines 4 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 369,269,515AGAINST: 7,968,343

COSTAR GROUP INC.’s own tally for this item (“Proposal 4: The 2025 Plan was approved upon the following vote:”): 369,269,515 for, 7,968,343 against, per its Form 8-K filed 2025-06-27 (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 409,500,000 outstanding shares: 90% for, 2% against (92% of the company cast a for/against vote).

The 171 asset managers below cast 99.8% of the shares they voted on this item FOR (207,431,692 for, 238,329 against).

FOR 99.8%

FOR: 207,431,692 (99.9%)AGAINST: 238,329 (0.1%)ABSTAIN: 1,090 (0.0%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Proposal to approve the CoStar Group, Inc. 2025 Stock Incentive Plan.” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	70,614,501	1	For
BlackRock	15,474,288	0	For
Principal	14,916,213	0	For
Fidelity	12,221,769	0	For
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	8,477,196	0	For
PROFESSIONALLY MANAGED PORTFOLIOS	8,337,746	0	For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	5,372,841	0	For
MFS	5,043,519	0	For
State Street	4,240,330	69	For
T. Rowe Price	4,079,928	0	For
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	3,897,278	0	For
Charles Schwab	3,022,496	0	For
Invesco	2,220,047	0	For
BNY Mellon	1,652,647	0	For
Columbia Threadneedle	1,616,667	0	For
Jackson National	1,610,325	0	For
FundVantage Trust	1,533,641	0	For
Federated Hermes	1,448,273	0	For
TIAA	993,101	0	For
Putnam	853,834	0	For
Lincoln Financial	821,468	0	For
Allspring	809,615	0	For

Showing the 25 largest of 171 asset managers. See all 171 in the interactive database.

12. Stockholder proposal regarding support for transparency in political spending, if properly presented.

CORPORATE GOVERNANCEMajority of the votes cast: no

Meeting held 2025-06-26.

Combines 3 wordings of this item as funds reported it.

33% Majority: no · of votes cast

FOR 33%AGAINST 67%

FOR: 124,189,745AGAINST: 251,384,311

COSTAR GROUP INC.’s own tally for this item (“Proposal 5: The stockholder proposal regarding support for transparency in political spending was not approved upon the following vote:”): 124,189,745 for, 251,384,311 against, per its Form 8-K filed 2025-06-27 (Item 5.07). FOR was not 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 409,500,000 outstanding shares: 30% for, 61% against (92% of the company cast a for/against vote).

The 170 asset managers below cast 22% of the shares they voted on this item FOR (45,155,311 for, 162,093,377 against).

FOR 22%AGAINST 78%

FOR: 45,155,311 (21.8%)AGAINST: 162,093,377 (78.1%)ABSTAIN: 337,382 (0.2%)NOT VOTED: 208 (0.0%)

Largest asset managers voting on “Stockholder proposal regarding support for transparency in political spending, if properly presented.” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Vanguard	555,038	70,059,464	Against
BlackRock	89,933	15,384,355	Against
Principal	1,271,546	13,644,667	Against
Fidelity	1,102,807	11,118,962	Against
BARON SELECT FUNDS	9,182,475	0	For
Capital Group	0	8,477,196	Against
PROFESSIONALLY MANAGED PORTFOLIOS	0	8,337,746	Against
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)	7,421,249	0	For
AMCAP FUND	0	5,372,841	Against
MFS	5,043,519	0	For
State Street	1,616	4,238,783	Against
T. Rowe Price	0	4,079,928	Against
Waddell & Reed	3,929,677	0	For
INVESTMENT CO OF AMERICA	0	3,897,278	Against
Charles Schwab	413	3,022,083	Against
Invesco	2,022,329	197,718	For
BNY Mellon	1,203,522	449,125	For
Columbia Threadneedle	0	1,616,667	Against
Jackson National	26,358	1,583,967	Against
FundVantage Trust	19	1,533,622	Against
Federated Hermes	1,448,273	0	For
TIAA	993,101	0	For
Putnam	0	853,834	Against
Lincoln Financial	688,893	132,575	For
Allspring	0	809,615	Against

Showing the 25 largest of 170 asset managers. See all 170 in the interactive database.

13. Advisory Vote to Ratify Named Executive Officers' Compensation

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

Meeting held 2025-06-26.

53.8% Majority: yes · of votes cast

FOR 53.8%AGAINST 46.2%

FOR: 202,754,871AGAINST: 174,302,322

The 34 asset managers below cast 38% of the shares they voted on this item FOR (1,932,250 for, 3,102,430 against).

FOR 36%AGAINST 58%

FOR: 1,932,250 (36.3%)AGAINST: 3,102,430 (58.4%)ABSTAIN: 281,439 (5.3%)

Largest asset managers voting on “Advisory Vote to Ratify Named Executive Officers' Compensation” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Abstain	Vote
FAYEZ SAROFIM & CO	1,503,433	0	0	For
APG Asset Management US Inc.	0	902,545	0	Against
Ownership Capital B.V.	0	450,660	0	Against
JPMorgan	0	369,507	0	Against
ADAGE CAPITAL PARTNERS GP, L.L.C.	0	310,900	0	Against
Ninety One UK Ltd	0	0	281,439	Abstain
Granahan Investment Management, LLC	0	261,097	0	Against
CADEN CAPITAL PARTNERS, LP	225,292	0	0	For
Erste Asset Management GmbH	200,000	0	0	For
TD ASSET MANAGEMENT INC	0	195,077	0	Against
Thematics Asset Management	0	93,379	0	Against
STOREBRAND ASSET MANAGEMENT AS	0	78,042	0	Against
Desjardins Global Asset Management Inc.	0	74,974	0	Against
Cardano Risk Management B.V.	0	66,668	0	Against
Empower	0	62,447	0	Against
GuideStone	0	46,436	0	Against
iA Global Asset Management Inc.	0	45,145	0	Against
NORDEA INVESTMENT MANAGEMENT AB	0	34,294	0	Against
HC CAPITAL TRUST	0	30,060	0	Against
Swiss Life Asset Management Ltd	0	28,730	0	Against
Regime de rentes du Mouvement Desjardins	0	19,564	0	Against
Wilshire Advisors LLC	0	11,573	0	Against
Metzler Asset Management GmbH	0	8,259	0	Against
OSSIAM	0	6,100	0	Against
CLEARWATER INVESTMENT TRUST	0	5,900	0	Against

Showing the 25 largest of 34 asset managers. See all 34 in the interactive database.

14. Approve Omnibus Stock Plan

COMPENSATION

Meeting held 2025-06-26.

96% fund support · no official result

FOR 96%

The 8 asset managers below cast 96% of the shares they voted on this item FOR (804,688 for, 35,960 against).

FOR: 804,688 (95.7%)AGAINST: 35,960 (4.3%)

Largest asset managers voting on “Approve Omnibus Stock Plan” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Ownership Capital B.V.	450,660	0	For
Erste Asset Management GmbH	200,000	0	For
Empower	62,447	0	For
GuideStone	46,436	0	For
iA Global Asset Management Inc.	45,145	0	For
HC CAPITAL TRUST	0	30,060	Against
CLEARWATER INVESTMENT TRUST	0	5,900	Against
OARSMAN CAPITAL, INC.	0	0	--

15. Report on Political Contributions

OTHER SOCIAL ISSUES

Meeting held 2025-06-26.

94% fund support · no official result

FOR 94%

The 7 asset managers below cast 94% of the shares they voted on this item FOR (749,067 for, 46,436 against).

FOR: 749,067 (94.2%)AGAINST: 46,436 (5.8%)

Largest asset managers voting on “Report on Political Contributions” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
Ownership Capital B.V.	450,660	0	For
Erste Asset Management GmbH	200,000	0	For
Empower	62,447	0	For
GuideStone	0	46,436	Against
HC CAPITAL TRUST	30,060	0	For
CLEARWATER INVESTMENT TRUST	5,900	0	For
OARSMAN CAPITAL, INC.	0	0	--

16. Approval of the 2025 Stock Incentive Plan

COMPENSATIONMajority of the votes cast: yes

Meeting held 2025-06-26.

98% Majority: yes · of votes cast

FOR 98%

FOR: 369,269,515AGAINST: 7,968,343

The 4 asset managers below cast 100% of the shares they voted on this item FOR (1,576,234 for, 0 against).

FOR 100%

FOR: 1,576,234 (100.0%)

Largest asset managers voting on “Approval of the 2025 Stock Incentive Plan” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Vote
FAYEZ SAROFIM & CO	1,503,433	For
Cardano Risk Management B.V.	66,668	For
OSSIAM	6,100	For
Empirical Financial Services, LLC d.b.a. Empirical Wealth Ma	33	For

17. Proposal to approve, on an advisory basis, the Company's executive compensation

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

Meeting held 2024-06-06 (outside the 2024-2025 season's 1 July to 30 June window; reported in this season's filings).

Combines 2 wordings of this item as funds reported it.

92% Majority: yes · of votes cast

FOR 92%8%

FOR: 340,897,991AGAINST: 30,921,054

COSTAR GROUP INC.’s own tally for this item (“Proposal 3: The advisory resolution to approve the Company's executive compensation was approved upon the following vote:”): 340,897,991 for, 30,921,054 against, per its Form 8-K filed 2024-06-07 (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 409,500,000 outstanding shares: 83% for, 8% against (91% of the company cast a for/against vote).

The 3 asset managers below cast 29% of the shares they voted on this item FOR (380 for, 911 against).

FOR 29%AGAINST 71%

FOR: 380 (29.4%)AGAINST: 911 (70.6%)

Largest asset managers voting on “Proposal to approve, on an advisory basis, the Company's executive compensation” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Vote
COLDSTREAM CAPITAL MANAGEMENT INC	0	911	Against
VAUGHAN DAVID INVESTMENTS LLC/IL	380	0	For
Echo45 Advisors LLC	0	0	--

18. SECTION 14A SAY-ON-PAY VOTES

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

Meeting held 2025-06-26.

53.8% Majority: yes · of votes cast

FOR 53.8%AGAINST 46.2%

FOR: 202,754,871AGAINST: 174,302,322

The 2 asset managers below cast 100% of the shares they voted on this item FOR (11,657 for, 0 against).

FOR 100%

FOR: 11,657 (100.0%)

Largest asset managers voting on “SECTION 14A SAY-ON-PAY VOTES” at COSTAR GROUP INC., 2024-2025
Asset manager	For	Against	Abstain	Withheld	Vote
Waterfront Capital Partners, LLC	7,020	0	0	0	For
Lido Advisors, LLC	4,637	0	0	0	For

Largest COSTAR GROUP INC. shareholders voting in 2024-2025

Ranked by the number of COSTAR GROUP INC. shares each manager voted on the most widely held ballot item of the 2024-2025 meeting, shown as a share of the 409,500,000 shares outstanding at the time of that meeting.

Top COSTAR GROUP INC. shareholders by shares voted, 2024-2025
#	Asset manager	% of shares outstanding
1	Vanguard	17.89%
2	Capital Group	5.68%
3	PRINCIPAL GLOBAL INVESTORS	4.33%
4	BAMCO INC /NY/	4.24%
5	BlackRock	3.78%
6	Principal	3.64%
7	State Street	3.60%
8	Fidelity	3.31%
9	T. Rowe Price	2.99%
10	GEODE CAPITAL MANAGEMENT, LLC	2.94%

Reported COSTAR GROUP INC. ownership

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

COSTAR GROUP INC. beneficial owners on record for the 2024-2025 proxy season
Holder	% outstanding	Disclosure
Vanguard Group	16.71%	13F
Vanguard Portfolio Management	9.35%	13G
BlackRock	9.15%	13F
State Street	4.29%	13F
Morgan Stanley	1.93%	13F
BNY Mellon	1.35%	13F
Norges Bank	1.20%	13F
Invesco	1.05%	13F
Northern Trust	0.98%	13F

Percentages above are of 409,500,000 shares outstanding, as reported by COSTAR GROUP INC. on its Form 10-K dated 2024-12-31 (see the filing on EDGAR). This is the count contemporaneous with the 2024-2025 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 COSTAR GROUP INC.’s 10-K dated 2024-12-31. This page is a static snapshot rebuilt weekly on 02 October 2026; a live search always shows the current data.

At COSTAR GROUP INC.'s shareholder meeting held 2025-06-26, in the 2024-2025 proxy season, 804 asset managers reported how they voted in their SEC Form N-PX filings, covering 9,905 separate fund positions. Their filings are grouped here into 18 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 — Proposal to approve, on an advisory basis, the Company's executive compensation. — FOR was 53.8% 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: COSTAR GROUP INC.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on 2025-06-27.

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