Velarion · Company Intelligence
Compensation Brief
Fiscal year 2025 · Filings through 2026-07-06

Costar Group (CSGP)

Fiscal year 2025 executive and director compensation, incentive-plan design, equity activity, and governance — every figure in this brief is traceable to its exact location in the company’s SEC filing — the document, the section, the page, and the table, linked directly.

$36,431,936
Andrew Florance total, FY2025
99th
CEO pay percentile vs peers
303:1
CEO-to-median pay ratio
71.39%
Say-on-pay support, latest vote
Companies that benchmark against CSGP
12 companies name CSGP as a compensation peer

Each company listed discloses CSGP in its own benchmarking peer group, as disclosed in each company's most recent proxy statement within the last two proxy seasons. Two companies are therefore absent by design: one that named CSGP in an earlier year and no longer does, and one whose own most recent disclosure is older than the last two seasons.

01

Summary Compensation Table — fiscal year 2025

Named executive officerSalaryBonusStock awardsOption awardsNon-equity incentivePension / NQDCAll otherTotal
Andrew Florance$1,000,000$0$28,318,400$3,425,382$3,000,000$0$688,154$36,431,936
Founder and Chief Executive Officer
Frank Simuro646,92307,347,105991,5581,300,000017,85310,303,439
Chief Technology Officer
Frederick Saint591,92305,488,266739,1611,190,0000178,8568,188,206
President, Marketplaces
Christian Lown588,26905,488,266739,1611,137,000017,7277,970,423
Chief Financial Officer
Lisa Ruggles591,92303,677,817495,7791,045,713017,5945,828,826
Senior Vice President, Global Operations

A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed in the filing, without adjustment.

Three-year trend — total compensation per named executive

Named executive officerFY2025 totalFY2024 totalFY2023 totalΔ FY20242025
Andrew Florance$36,431,936$37,393,960−962,024
Frank Simuro10,303,43913,317,118−3,013,679
Frederick Saint8,188,2068,963,355−775,149
Christian Lown7,970,4233,540,510+4,429,913
Lisa Ruggles5,828,8266,754,356−925,530

Prior-year totals as disclosed in the corresponding proxy; deltas are computed values with the derivation shown in the register.

02

Equity transactions since the proxy statement was filed

Every insider equity transaction reported on Form 4 after the 2025 proxy statement — acquisitions, dispositions, exercises, and withholdings — and therefore not reflected in any table in that document.

InsiderRoleTransaction dateCodeSharesPriceValueSecuritySource
Andrew C. FloranceDirector2026-05-01A68,330$35$2,403,166CommonForm 4 ↗
Andrew C. FloranceDirector2026-05-01A3,10036111,042CommonForm 4 ↗
Cynthia Cammett CannChief Accounting Officer2026-06-15D4613214,770CommonForm 4 ↗
John L. BerisfordDirector2026-06-23A8,26200CommonForm 4 ↗
Angelique G. BrunnerDirector2026-06-23A8,26200CommonForm 4 ↗
Robert W. MusslewhiteDirector2026-06-23A8,26200CommonForm 4 ↗
Louise S. SamsDirector2026-06-23A8,26200CommonForm 4 ↗
Christine M. McCarthyDirector2026-06-23A8,26200CommonForm 4 ↗
Rachel C. GlaserDirector2026-06-23A8,26200CommonForm 4 ↗
John W. HillDirector2026-06-23A8,26200CommonForm 4 ↗
Christian LownChief Financial Officer2026-07-01D5,59729164,328CommonForm 4 ↗

Transaction codes per Form 4: A acquisition · S open-market sale · F tax withholding · M option exercise · G gift. Value = shares × price as reported. Dividend-equivalent and fractional-share accrual rows (derivative Class A, under $10,000 and under 2,000 shares) are aggregated per date; every row appears in full below.

03

Grants of plan-based awards — fiscal year 2025

ExecutiveAwardGrant dateThresholdTargetGrantedMaximumGrant-date fair value
Andrew FloranceOPTION2025-02-20114,000$3,425,382
Andrew FloranceRSU2025-02-20218,40017,107,272
Christian LownRSU2025-02-2047,2003,697,716
Christian LownOPTION2025-02-2024,600739,161
Frank SimuroRSU2025-02-2063,2004,950,456
Lisa RugglesPSU2025-02-205,64014,10033,8401,202,589
Frank SimuroPSU2025-02-2011,24028,10067,4402,396,649
Lisa RugglesOPTION2025-02-2016,500495,779
Andrew FlorancePSU2025-02-2038,84097,100233,0408,281,659
Frederick SaintOPTION2025-02-2024,600739,161
Frank SimuroOPTION2025-02-2033,000991,558
Christian LownPSU2025-02-208,40021,00050,4001,791,090
Lisa RugglesRSU2025-02-2031,6002,475,228
Frederick SaintRSU2025-02-2047,2003,697,176
Frederick SaintPSU2025-02-208,40021,00050,4001,791,090
Andrew FloranceRSU2025-03-0537,6492,929,469
03b

Vehicle mix — grant-date fair value by award type

Named executive officerTime-vested (RSU)Performance-vested (PSU)Options / SARs% performance-vested
Andrew Florance$20,036,741$8,281,659$3,425,38226.1%
Christian Lown3,697,7161,791,090739,16128.8%
Frank Simuro4,950,4562,396,649991,55828.7%
Lisa Ruggles2,475,2281,202,589495,77928.8%
Frederick Saint3,697,1761,791,090739,16128.8%

% performance-vested = PSU grant-date fair value ÷ (RSU + PSU + Options), a computed value with the derivation shown in the register.

04

Outstanding equity awards at fiscal year-end 2025

ExecutiveAwardShares unvestedExercise priceMarket value unvested
Andrew FloranceRSU218,400$14,685,216
Andrew FloranceRSU118,6677,979,169
Lisa RugglesOption4,10076.78
Lisa RugglesRSU18,5341,246,226
Frank SimuroRSU63,2004,249,568
Frederick SaintRSU22,2671,497,233
Lisa RugglesRSU7,700517,748
Frank SimuroPSU67,4404,534,666
Frederick SaintRSU47,2003,173,728
Frederick SaintPSU50,4003,388,896
Lisa RugglesPSU10,300692,572
Lisa RugglesRSU3,388227,809
Frederick SaintOption24,60078.33
Frank SimuroOption33,00078.33
Lisa RugglesRSU31,6002,124,784
Andrew FloranceRSU18,9221,272,315
Andrew FloranceRSU37,6492,531,519
Andrew FlorancePSU233,04015,669,610
Frank SimuroRSU13,467905,521
Christian LownOption24,60078.33
Frederick SaintPSU14,9001,001,876
Frederick SaintRSU9,554642,411
Lisa RugglesOption16,50078.33
Lisa RugglesPSU12,400833,776
Frederick SaintOption4,10076.78
Lisa RugglesOption9,46782.47
Frank SimuroOption20,80082.47
Christian LownRSU47,2003,173,728
Frederick SaintRSU7,700517,748
Christian LownPSU50,4003,388,896
Frederick SaintPSU10,300692,572
Andrew FlorancePSU79,1005,318,684
Frederick SaintOption11,33482.47
Andrew FlorancePSU61,5004,135,260
Andrew FloranceRSU46,1003,099,764
Frank SimuroRSU40,8002,743,392
Lisa RugglesPSU33,8402,275,402
Frank SimuroPSU27,2001,828,928
Christian LownRSU24,8161,668,628
Frank SimuroPSU18,0001,210,320
Frank SimuroRSU12,641849,981
Andrew FloranceOption24,46776.78
Andrew FloranceOption60,33482.47
Andrew FloranceOption114,00078.33
Frank SimuroOption7,13476.78
05

Incentive-plan design — the Compensation Discussion & Analysis

In addition to attracting, motivating, and retaining talented executives, our executive compensation program is designed to hold our executives accountable for corporate results over the short and long-term, and to reward them for successful execution. As a result, a substantial portion of our executives overall compensation is tied to performance.

CEO STI target (% of salary)150%
CEO LTI target (% of salary)
Independent consultantWillis Towers Watson
Clawback policytrue
Anti-hedgingtrue
Anti-pledgingTrue
06

Say-on-pay — recent advisory votes

Meeting yearMeeting dateForAgainstAbstainSupportOutcome
20262026-06-25257,665,608103,277,424117,14571.39%Passed
20252025-06-26202,754,871174,302,322436,94653.77%Passed
20242024-06-06340,897,99130,921,054495,49791.68%Passed
20232023-06-08317,566,63241,805,3041,031,18888.37%Passed
20222022-06-09262,417,05490,117,835444,00774.44%Passed
20212021-06-0229,439,1655,532,238242,07083.6%Passed

Rows are labeled by annual-meeting year, with the meeting date beside each; the vote held in a given year acts on the prior fiscal year's compensation.

Say-on-pay — history, company's computation

Meeting yearMeeting dateApproval — company's computation
20262026-06-2571.39%a
20252025-06-2653.77%b
20242024-06-0691.68%c

a. Voting standard not stated in the filing.

b. Voting standard not stated in the filing.

c. Voting standard not stated in the filing.

Approval percentages are the company's own reported computations under its own stated standard, not recomputed by Velarion. Where a company does not state a standard, none is assumed.

07

CEO pay ratio

Ratio (CEO : median employee)303 : 1
CEO total compensation$36,431,936
Median employee compensation$120,170
08

Director compensation — fiscal year 2025

DirectorCash feesStock awardsOption awardsNon-equity incentiveAll otherTotal
Louise S. SamsIndependent · Board Chair · Nominating and Corporate Governance (Chair) · Audit$105,000$290,000$0$0$0$395,000
John W. HillIndependent · Audit (Chair)50,000280,000000330,000
Angelique G. BrunnerIndependent · Audit · Compensation50,000277,000000327,000
Robert W. MusslewhiteIndependent · Compensation (Chair)50,000275,000000325,000
Rachel C. GlaserIndependent · Audit · Nominating and Corporate Governance · Newly elected36,986277,000000313,986
Christine M. McCarthyIndependent · Nominating and Corporate Governance · Newly elected36,986262,000000298,986
John L. BerisfordIndependent · Compensation · Newly elected36,986262,000000298,986
Laura Cox KaplanIndependent · Departed during FY25,00000025,000
Christopher J. NassettaIndependent · Departed during FY25,00000025,000
Michael R. KleinIndependent · Departed during FY20,00000020,000
Andrew C. FloranceEmployee director00000
09

Board fee structure and ownership guideline

Annual cash retainer
Annual equity retainer
Per board meeting fee
Committee chair fees (audit / comp / nom-gov)30,000 / 12,000 / 25,000
Stock ownership guideline
09b

Total cost of the board

ComponentFY2025
Cash retainers and fees$435,958
Equity awards (grant-date value)$1,923,000
All other compensation$0
Total cost of the board$2,358,958

Computed as the sum of the director compensation table rows above; inputs and formula shown in the register.

10

Disclosed peer group — fiscal year 2025

The compensation peer group as the company disclosed it in its own proxy — the reference set behind the percentile above.

10a

Peer reciprocity

Of the companies Costar Group names as compensation peers, which name it back in their own disclosed peer groups. A peer set the market reciprocates reads differently from one selected in a single direction.

Reciprocity shown where the peer's own current proxy has been read — each mark is cited in the register to that peer's filing. A dash means the peer's current proxy was read and names no reciprocal group including Costar Group.

10b

Chief executive pay against the peer group

Most recent fiscal-year chief executive compensation at each disclosed peer, taken from that company's own proxy statement.

RankCompanyFYChief executiveSalaryStock awardsOption awardsNon-equity incentiveTotal
1Costar Group2025Andrew Florance$1,000,000$28,318,400$3,425,382$3,000,000$36,431,936
2Fair Isaac Corporation2025William Lansing750,00034,091,86001,100,00036,045,267
3MSCI Inc.2025Henry A. Fernandez1,000,0004,380,02425,220,3041,346,95033,320,590
4ANSYS, Inc.2024Ajei Gopal850,00029,379,50702,550,00032,810,655
5Autodesk, Inc.2026Andrew Anagnost1,040,00027,242,33001,717,56030,091,165
6Workday, Inc.2026Carl Eschenbach1,037,80822,982,99301,556,71226,031,706
7DocuSign, Inc.2026Allan Thygesen1,000,00023,600,13601,019,00025,650,100
8PTC Inc.2025Neil Barua800,00021,720,45601,620,00024,315,129
9Equifax Inc.2025Mark Begor1,500,00014,993,1103,420,1302,737,63423,420,134
10Paycom Software, Inc.2025Chad Richison858,88018,386,22601,730,56022,837,152
11Gartner, Inc.2025Eugene Hall985,18511,619,4774,979,9321,483,65519,226,580
12TransUnion2025Christopher Cartwright1,058,25012,665,1492,852,44716,731,398
13Akamai Technologies, Inc.2025Tom Leighton115,954,1710015,954,172
14VeriSign, Inc.2025D. James Bidzos950,00012,999,92901,586,02515,536,674
15Verisk Analytics, Inc.2025Lee Shavel1,000,0008,800,0862,199,8811,500,00013,540,847
16FactSet Research Systems, Inc.2025F. Philip Snow775,0003,750,1623,750,0931,171,3769,460,930
17Tyler Technologies, Inc.2025H. Lynn Moore, Jr.675,0008,173,649008,858,370
18Zillow Group, Inc.2025Jeremy Wacksman850,2664,006,8002,249,53607,138,557

Each peer's compensation is from its most recently filed proxy; fiscal years differ by company. Each peer's figures come from its own filings; the subject company is highlighted. Peers whose chief executive compensation is outside our coverage universe are stated as such, never left blank.

10c

Incentive design against the same peers

CompanyAnnual incentive payoutLong-term vehicle mixPSU measures include TSRCompensation consultant
Costar Group200%RSU 45 · PSU 40 · Options 15NoWillis Towers Watson
Akamai Technologies, Inc.151.3%RSU 80 · PSU 20Yes — Relative TSR PerformanceCompensia
ANSYS, Inc.200.0%RSU 100not disclosedCompensia
Autodesk, Inc.110.1%PSU 60 · RSU 40Yes — Relative TSR (rTSR) over three-year performance periodExequity LLP
DocuSign, Inc.101.9%PSU 60 · RSU 40Yes — TSRCompensia
Equifax Inc.152.1%PSU 60 · Options 20 · RSU 20Yes — Relative TSRFrederic W. Cook & Co., Inc.
FactSet Research Systems, Inc.101%Options 50 · PSU 50NoMeridian Compensation Partners
Fair Isaac Corporation147%PSU 33 · RSU 33 · Other 33NoCompensia, Inc.
Gartner, Inc.119.6%PSU 70 · Options 30NoExequity
MSCI Inc.96.21%PSO 70 · PSU 30Yes — Absolute TSR CAGRSemler Brossy
Paycom Software, Inc.200%PSU 50 · RSU 50NoMeridian Compensation Partners, LLC
PTC Inc.135%PSU 60 · RSU 40Yes — Three Year Relative TSRPearl Meyer & Partners, LLC
TransUnion154.0%RSU 50 · PSU 50Yes — Relative TSRFW Cook
Tyler Technologies, Inc.120%PSU 80 · RSU 20NoRadford
VeriSign, Inc.111.3%PSU 60 · RSU 40Yes — TSR of Verisign compared to the TSR of the S&P 500 IndexFrederic W. Cook & Co., Inc.
Verisk Analytics, Inc.100%PSU 60 · RSU 20 · Options 20Yes — Relative TSR versus S&P 500 Index constituentsFW Cook
Workday, Inc.101.8%RSU 75 · PSU 25NoSemler Brossy
Zillow Group, Inc.not disclosednot disclosednot disclosedEquilar

Read from each company's Compensation Discussion and Analysis: annual incentive payout as a percentage of target, the disclosed long-term vehicle mix, whether performance-share measures include a total shareholder return component, and the retained compensation consultant. “Not disclosed” appears only where the company's filing does not state the item.

11

Source register

Each figure's location is given both for the eye (section · page · table · row · column) and for a script (table/row/column index and exact character span in the filed document). Any figure can be independently confirmed against the source.

#SupportsDocumentFiledAccessionLocation in document
1Section 01, Andrew FloranceDEF 14A2026-04-300001193125-26-197205Section “2025 Summary Compensation Table”. As printed: 36,431,936. Filing ↗machine: t304 · r4 · c34 · span 1267602–1267613
2Section 01, Frank SimuroDEF 14A2026-04-300001193125-26-197205Section “2025 Summary Compensation Table”. As printed: 10,303,439. Filing ↗machine: r19 · c34 · span 1331793–1331804
3Section 01, Frederick SaintDEF 14A2026-04-300001193125-26-197205Section “2025 Summary Compensation Table”. As printed: 8,188,206. Filing ↗machine: r15 · c34 · span 1314106–1314116
4Section 01, Christian LownDEF 14A2026-04-300001193125-26-197205Section “2025 Summary Compensation Table”. As printed: 7,970,423. Filing ↗machine: r8 · c34 · span 1285304–1285314
5Section 01, Lisa RugglesDEF 14A2026-04-300001193125-26-197205Section “2025 Summary Compensation Table”. As printed: 5,828,826. Filing ↗machine: r11 · c34 · span 1296418–1296428
6Section 03, Andrew Florance OPTIONDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t267 · r4 · c9 · span 1073976–1073983
7Section 03, Andrew Florance RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t272 · r4 · c19 · span 1092862–1092869
8Section 03, Christian Lown RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t272 · r6 · c19 · span 1095507–1095513
9Section 03, Christian Lown OPTIONDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t267 · r6 · c9 · span 1075476–1075482
10Section 03, Frank Simuro RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t272 · r12 · c19 · span 1103436–1103442
11Section 03, Lisa Ruggles PSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t279 · r8 · c9 · span 1133088–1133094
12Section 03, Frank Simuro PSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t279 · r12 · c9 · span 1136284–1136290
13Section 03, Lisa Ruggles OPTIONDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t267 · r8 · c9 · span 1076972–1076978
14Section 03, Andrew Florance PSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t279 · r4 · c9 · span 1129895–1129901
15Section 03, Frederick Saint OPTIONDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t267 · r10 · c9 · span 1078472–1078478
16Section 03, Frank Simuro OPTIONDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t267 · r12 · c9 · span 1079970–1079976
17Section 03, Christian Lown PSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t279 · r6 · c9 · span 1131493–1131499
18Section 03, Lisa Ruggles RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t272 · r8 · c19 · span 1098148–1098154
19Section 03, Frederick Saint RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t272 · r10 · c19 · span 1100793–1100799
20Section 03, Frederick Saint PSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t279 · r10 · c9 · span 1134687–1134693
21Section 03, Andrew Florance RSUDEF 14A2026-04-300001193125-26-197205Section “2025 Grants of Plan-Based Awards” · grants of plan-based awards table. Filing ↗machine: t311 · r4 · c14 · span 1362713–1362719
22Section 07, pay ratioDEF 14A2026-04-300001193125-26-197205Section “CEO Pay Ratio”. As printed: 303 : 1. Filing ↗machine: span 1921406–1921414
23Section 08, Louise S. SamsDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 395,000. Filing ↗machine: t144 · r22 · c14 · span 647082–647090
24Section 08, John W. HillDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 330,000. Filing ↗machine: t144 · r10 · c14 · span 634994–635002
25Section 08, Angelique G. BrunnerDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 327,000. Filing ↗machine: t144 · r6 · c14 · span 631010–631018
26Section 08, Robert W. MusslewhiteDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 325,000. Filing ↗machine: t144 · r18 · c14 · span 643052–643060
27Section 08, Rachel C. GlaserDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 313,986. Filing ↗machine: t144 · r8 · c14 · span 633004–633012
28Section 08, Christine M. McCarthyDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 298,986. Filing ↗machine: t144 · r16 · c14 · span 641053–641061
29Section 08, John L. BerisfordDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 298,986. Filing ↗machine: t144 · r4 · c14 · span 629012–629020
30Section 08, Laura Cox KaplanDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 25,000. Filing ↗machine: t144 · r12 · c4 · span 636019–636025
31Section 08, Christopher J. NassettaDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 25,000. Filing ↗machine: t144 · r20 · c4 · span 644084–644090
32Section 08, Michael R. KleinDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 20,000. Filing ↗machine: t144 · r14 · c4 · span 638049–638055
33Section 08, Andrew C. FloranceDEF 14A2026-04-300001193125-26-197205Section “Director Compensation”. As printed: 0. Filing ↗
34Section 02, Andrew C. Florance 2026-05-01Form 42026-05-040001066061-26-000012Insider equity transaction reported since the proxy statement. Filing ↗
35Section 02, Andrew C. Florance 2026-05-01Form 42026-05-040001066061-26-000012Insider equity transaction reported since the proxy statement. Filing ↗
36Section 02, Cynthia Cammett Cann 2026-06-15Form 42026-06-160001472762-26-000008Insider equity transaction reported since the proxy statement. Filing ↗
37Section 02, John L. Berisford 2026-06-23Form 42026-06-240001449719-26-000002Insider equity transaction reported since the proxy statement. Filing ↗
38Section 02, Angelique G. Brunner 2026-06-23Form 42026-06-240001742356-26-000002Insider equity transaction reported since the proxy statement. Filing ↗
39Section 02, Robert W. Musslewhite 2026-06-23Form 42026-06-240001390194-26-000002Insider equity transaction reported since the proxy statement. Filing ↗
40Section 02, Louise S. Sams 2026-06-23Form 42026-06-240001796961-26-000004Insider equity transaction reported since the proxy statement. Filing ↗
41Section 02, Christine M. McCarthy 2026-06-23Form 42026-06-240001628280-26-045326Insider equity transaction reported since the proxy statement. Filing ↗
42Section 02, Rachel C. Glaser 2026-06-23Form 42026-06-240001497570-26-000011Insider equity transaction reported since the proxy statement. Filing ↗
43Section 02, John W. Hill 2026-06-23Form 42026-06-240001351689-26-000002Insider equity transaction reported since the proxy statement. Filing ↗
44Section 02, Christian Lown 2026-07-01Form 42026-07-060001701994-26-000006Insider equity transaction reported since the proxy statement. Filing ↗
45Section 06, 2026 voteForm 8-K2026-06-250001057352-26-000048Item 5.07 · say-on-pay result. As reported: 71.39% (votes for as printed: 257,665,608). Filing ↗
46Section 06, 2025 voteForm 8-K2025-06-270001057352-25-000083Item 5.07 · say-on-pay result. As reported: 53.77% (votes for as printed: 202,754,871). Filing ↗
47Section 06, 2024 voteForm 8-K2024-06-070001057352-24-000074Item 5.07 · say-on-pay result. As reported: 91.68% (votes for as printed: 340,897,991). Filing ↗
48Section 01 trend, Δ column (computed)ComputedcomputedΔ = current-FY total − prior-FY total per named officer.machine: formula: Δ = FY(n) − FY(n−1)
49Section 03b vehicle mix (computed)ComputedcomputedRSU / PSU / Options grant-date fair values summed per officer from the grants table; % performance-vested = PSU ÷ (RSU+PSU+Options).machine: formula: sums + PSU ratio
50Section 09b board cost (computed)ComputedcomputedCash 435,958 + equity 1,923,000 + all other 0 = 2,358,958, summed across the director compensation table rows.machine: formula: Σ = 2,358,958
51Costar Group (subject), Section 10b CEO totalDEF 14A2026-04-300001193125-26-197205CEO total compensation as printed in Costar Group's own proxy. As printed: 36,431,936. Filing ↗machine: t304 · r4 · c34 · span 1267602–1267613
52Fair Isaac Corporation, Section 10b CEO totalDEF 14A2026-01-270001193125-26-024403CEO total compensation as printed in Fair Isaac Corporation's own proxy. As printed: 36,045,267. Filing ↗machine: r3 · c35 · span 1413656–1413666
53MSCI Inc., Section 10b CEO totalDEF 14A2026-03-110001408198-26-000023CEO total compensation as printed in MSCI Inc.'s own proxy. As printed: 33,320,590. Filing ↗machine: r2 · c24 · span 1659848–1659858
54ANSYS, Inc., Section 10b CEO totalDEF 14A2025-04-290001104659-25-041176CEO total compensation as printed in ANSYS, Inc.'s own proxy. As printed: 32,810,655. Filing ↗machine: span 1192289–1192299
55Autodesk, Inc., Section 10b CEO totalDEF 14A2026-05-060000769397-26-000030CEO total compensation as printed in Autodesk, Inc.'s own proxy. As printed: 30,091,165. Filing ↗machine: r2 · c42 · span 707592–707602
56Workday, Inc., Section 10b CEO totalDEF 14A2026-05-050001104659-26-055687CEO total compensation as printed in Workday, Inc.'s own proxy. As printed: 26,031,706. Filing ↗machine: r4 · c42 · span 1684714–1684724
57DocuSign, Inc., Section 10b CEO totalDEF 14A2026-04-160001261333-26-000043CEO total compensation as printed in DocuSign, Inc.'s own proxy. As printed: 25,650,100. Filing ↗machine: r3 · c21 · span 792273–792283
58PTC Inc., Section 10b CEO totalDEF 14A2025-12-230001104659-25-124170CEO total compensation as printed in PTC Inc.'s own proxy. As printed: 24,315,129. Filing ↗machine: span 1634675–1634685
59Equifax Inc., Section 10b CEO totalDEF 14A2026-03-270001193125-26-127556CEO total compensation as printed in Equifax Inc.'s own proxy. As printed: 23,420,134. Filing ↗machine: r2 · c44 · span 1228991–1229001
60Paycom Software, Inc., Section 10b CEO totalDEF 14A2026-04-020001193125-26-140064CEO total compensation as printed in Paycom Software, Inc.'s own proxy. As printed: 22,837,152. Filing ↗machine: r3 · c32 · span 673559–673569
61Gartner, Inc., Section 10b CEO totalDEF 14A2026-04-150000749251-26-000159CEO total compensation as printed in Gartner, Inc.'s own proxy. As printed: 19,226,580. Filing ↗machine: r2 · c21 · span 686397–686407
62TransUnion, Section 10b CEO totalDEF 14A2026-03-240001193125-26-121876CEO total compensation as printed in TransUnion's own proxy. As printed: 16,731,398. Filing ↗machine: r3 · c34 · span 858177–858187
63Akamai Technologies, Inc., Section 10b CEO totalDEF 14A2026-03-310001086222-26-000042CEO total compensation as printed in Akamai Technologies, Inc.'s own proxy. As printed: 15,954,172. Filing ↗machine: span 583218–583228
64VeriSign, Inc., Section 10b CEO totalDEF 14A2026-04-100001014473-26-000013CEO total compensation as printed in VeriSign, Inc.'s own proxy. As printed: 15,536,674. Filing ↗machine: r2 · c36 · span 615432–615442
65Verisk Analytics, Inc., Section 10b CEO totalDEF 14A2026-04-030001193125-26-141398CEO total compensation as printed in Verisk Analytics, Inc.'s own proxy. As printed: 13,540,847. Filing ↗machine: r3 · c28 · span 887453–887463
66FactSet Research Systems, Inc., Section 10b CEO totalDEF 14A2025-10-270001628280-25-046442CEO total compensation as printed in FactSet Research Systems, Inc.'s own proxy. As printed: 9,460,930. Filing ↗machine: span 790783–790792
67Tyler Technologies, Inc., Section 10b CEO totalDEF 14A2026-03-230000860731-26-000022CEO total compensation as printed in Tyler Technologies, Inc.'s own proxy. As printed: 8,858,370. Filing ↗machine: t205 · r9 · c16 · span 1010313–1010322
68Zillow Group, Inc., Section 10b CEO totalDEF 14A2026-04-150001617640-26-000031CEO total compensation as printed in Zillow Group, Inc.'s own proxy. As printed: 7,138,557. Filing ↗machine: r2 · c39 · span 618709–618718
69Section 10a, VeriSign, Inc. reciprocityDEF 14A0001014473-26-000013VeriSign, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
70Section 10a, Paycom Software, Inc. reciprocityDEF 14A0001193125-26-140064Paycom Software, Inc. names Costar Group in its own disclosed peer group (read from its most recent proxy). Filing ↗
71Section 10a, TransUnion reciprocityDEF 14A0001193125-24-073865TransUnion's most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
72Section 10a, Autodesk, Inc. reciprocityDEF 14A0000769397-26-000030Autodesk, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
73Section 10a, ANSYS, Inc. reciprocityDEF 14A0001104659-25-041176ANSYS, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
74Section 10a, PTC Inc. reciprocityDEF 14A0001104659-25-124170PTC Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
75Section 10a, Workday, Inc. reciprocityDEF 14A0001104659-26-055687Workday, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
76Section 10a, MSCI Inc. reciprocityDEF 14A0001408198-26-000023MSCI Inc. names Costar Group in its own disclosed peer group (read from its most recent proxy). Filing ↗
77Section 10a, Gartner, Inc. reciprocityDEF 14A0000749251-26-000159Gartner, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
78Section 10a, Tyler Technologies, Inc. reciprocityDEF 14A0000860731-26-000022Tyler Technologies, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗
79Section 10a, Verisk Analytics, Inc. reciprocityDEF 14A0001193125-26-141398Verisk Analytics, Inc. names Costar Group in its own disclosed peer group (read from its most recent proxy). Filing ↗
80Section 10a, DocuSign, Inc. reciprocityDEF 14A0001261333-26-000043DocuSign, Inc. names Costar Group in its own disclosed peer group (read from its most recent proxy). Filing ↗
81Section 10a, Akamai Technologies, Inc. reciprocityDEF 14A0001086222-26-000042Akamai Technologies, Inc.'s most recent proxy was read; its disclosed peer group does not include Costar Group. Filing ↗