NDAQ

SEC source: 0000950170-24-124126 · ownership.xml · nonDerivative · entry 1

SKULE JEREMY · CIK 0001736565 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,580

F1 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.34 to $79.24, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

F2 · balance_after: Represents (i) 48,121 shares or units of RSUs, of which 8,077 are vested, (ii) 63,063 shares underlying PSUs, all of which are vested and (iii) 3,396 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-120684 · ownership.xml · nonDerivative · entry 2

Tal Cohen · CIK 0001781714 · President, Market Platforms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,826

F2 · balance_after: Represents (i) 57,013 shares underlying PSUs, all of which are vested, (ii) 78,577 shares or units of restricted stock, of which 30,920 are vested and (iii) 1,236 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-120684 · ownership.xml · nonDerivative · entry 1

Tal Cohen · CIK 0001781714 · President, Market Platforms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,376

F1 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.27 to $74.39, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0000950170-24-118972 · ownership.xml · nonDerivative · entry 2

Griggs PC Nelson · CIK 0001622632 · President, Capital Access Plat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 211,563

F2 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.05 to $76.06, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

F3 · balance_after: Represents (i) 79,612 shares or units of restricted stock, of which 28,568 are vested and (ii) 131,951 shares underlying PSUs, all of which are vested.

SEC source: 0000950170-24-118972 · ownership.xml · nonDerivative · entry 1

Griggs PC Nelson · CIK 0001622632 · President, Capital Access Plat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,563

F1 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.68 to $75.76, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0000950170-24-118962 · ownership.xml · nonDerivative · entry 2

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,830

F2 · balance_after: Represents (i) 85,038 shares or units of restricted stock, of which 36,806 are vested, (ii) 53,114 shares underlying PSUs, all of which are vested and (iii) 4,678 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-118962 · ownership.xml · nonDerivative · entry 1

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,655

F1 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.94 to $75.49, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0000950170-24-111624 · ownership.xml · nonDerivative · entry 1

SKULE JEREMY · CIK 0001736565 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,580

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on October 1, 2025, 33% on October 1, 2026 and 34% on October 1, 2027.

F2 · balance_after: Represents (i) 48,121 shares or units of RSUs, of which 8,077 are vested, (ii) 75,063 shares underlying PSUs, all of which are vested and (iii) 3,396 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-106825 · ownership.xml · nonDerivative · entry 1

Zecca John · CIK 0001789709 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 113,263

F1 · kind: The reported sale was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.74 to $72.25, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

F3 · balance_after: Represents (i) 17,091 shares or units of restricted stock, of which 0 are vested, and (ii) 96,172 shares underlying PSUs, all of which are vested.

SEC source: 0000950170-24-096282 · ownership.xml · nonDerivative · entry 1

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 156,472

F1 · kind: The reported sale was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.48 to $68.09, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

F3 · balance_after: Represents (i) 98,680 shares or units of restricted stock, of which 50,448 are vested, (ii) 53,114 shares underlying PSUs, all of which are vested and (iii) 4,678 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-088078 · ownership.xml · nonDerivative · entry 1

Argus Seller, LP · CIK 0001993263 · 10% owner

THOMA BRAVO UGP, LLC · CIK 0001813487 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,804,207

F1 · shares: On July 29, 2024, the Reporting Persons sold an aggregate of 42,804,207 shares of the Issuer's Common Stock, par value $0.01 per share, in an underwritten public offering pursuant to the Issuer's Registration Statement on Form S-3 (File No. 333-279011).

F2 · balance_after: Consists of 42,804,207 shares held directly by Argus Seller, LP ("Argus Seller").

F3 · ownership.direct: Thoma Bravo UGP, LLC ("Thoma Bravo UGP") is the ultimate general partner of certain investment funds affiliated with Thoma Bravo UGP (the "Thoma Bravo Funds"), and the Thoma Bravo Funds and certain unaffiliated investors are limited partners of Argus Seller. By virtue of the relationships described in this footnote, Thoma Bravo UGP may be deemed to beneficially own shares of Common Stock directly owned by Argus Seller. The Thoma Bravo Funds and Thoma Bravo UGP disclaim beneficial ownership of the shares of Common Stock directly owned by Argus Seller except to the extent of their pecuniary interest therein.

SEC source: 0000950170-24-080460 · ownership.xml · nonDerivative · entry 1

Griggs PC Nelson · CIK 0001622632 · President, Capital Access Plat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 221,563

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents (i) 79,612 shares or units of restricted stock, of which 28,568 are vested and (ii) 141,951 shares underlying PSUs, all of which are vested.

SEC source: 0000950170-24-080456 · ownership.xml · nonDerivative · entry 1

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,472

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents (i) 98,680 shares or units of restricted stock, of which 50,448 are vested, (ii) 93,114 shares underlying PSUs, all of which are vested and (iii) 4,678 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-080439 · ownership.xml · nonDerivative · entry 1

Daly Michelle Lynn · CIK 0001860776 · Controller and Prin Acctg Ofcr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,423

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents (i) 11,080 shares or units of restricted stock, of which 4,469 are vested at the date hereof and (ii) 1,343 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-077286 · ownership.xml · nonDerivative · entry 1

Kazim Essa · CIK 0001428856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,063

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with a vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents 140,063 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 134,134 are vested as of the date hereof.

SEC source: 0000950170-24-077280 · ownership.xml · nonDerivative · entry 1

Torgeby Johan · CIK 0001940145 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,209

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with a vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents (i) 12,209 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 7,804 are vested as of the date hereof and (ii) 14,000 shares of common stock acquired through open market purchases.

SEC source: 0000950170-24-073178 · ownership.xml · nonDerivative · entry 1

Koch Kathryn A. · CIK 0002026063 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,405

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 4,405 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which none are vested as of the date hereof.

SEC source: 0000950170-24-073153 · ownership.xml · nonDerivative · entry 1

YABUKI JEFFERY W · CIK 0001207371 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,240

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents (i) 13,740 shares or units of restricted stock, of which none are vested, (ii) 500 shares of common stock acquired through open market purchases and (iii) 2,000 shares that Mr. Yabuki transferred from his family trust to his personal holdings.

SEC source: 0000950170-24-073130 · ownership.xml · nonDerivative · entry 1

Torgeby Johan · CIK 0001940145 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,871

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents (i) 12,871 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 3,324 are vested as of the date hereof and (ii) 14,000 shares of common stock acquired through open market purchases.

SEC source: 0000950170-24-073114 · ownership.xml · nonDerivative · entry 1

ZOLLAR ALFRED W · CIK 0001196985 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,751

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 46,751 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 32,982 are vested as of the date hereof.

SEC source: 0000950170-24-073105 · ownership.xml · nonDerivative · entry 2

SPLINTER MICHAEL R · CIK 0001188935 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,181

F2 · kind: Reflects shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan and fully vested as of the date of grant. These shares were issued as compensation for additional Board service by Mr. Splinter during the Board term ended June 11, 2024.

F3 · balance_after: Represents 212,181 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 196,225 are vested as of the date hereof.

SEC source: 0000950170-24-073105 · ownership.xml · nonDerivative · entry 1

SPLINTER MICHAEL R · CIK 0001188935 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,012

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

SEC source: 0000950170-24-073102 · ownership.xml · nonDerivative · entry 1

Townes-Whitley Toni · CIK 0001764528 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,476

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 17,476 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 7,929 are vested as of the date hereof.

SEC source: 0000950170-24-073091 · ownership.xml · nonDerivative · entry 1

SPAHT PAUL HOLDEN JR. · CIK 0001862654 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,406

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 7,406 shares or units of unvested restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which none are vested as of the date hereof.

F3 · ownership.direct: Because such restricted stock are held by the reporting person for the benefit of Thoma Bravo, L.P., the reporting person disclaims beneficial ownership of and all right, title, and interest in the restricted stock reported or referenced herein and the filing of this statement shall not be deemed an admission that the reporting person is, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of the reported securities.

SEC source: 0000950170-24-073088 · ownership.xml · nonDerivative · entry 1

Kazim Essa · CIK 0001428856 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,953

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 140,953 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 128,103 are vested as of the date hereof.

SEC source: 0000950170-24-073085 · ownership.xml · nonDerivative · entry 1

BEGLEY CHARLENE T · CIK 0001233150 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,006

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 46,006 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 36,459 shares are vested as of the date hereof.

SEC source: 0000950170-24-073081 · ownership.xml · nonDerivative · entry 1

ARNOLDI MELISSA · CIK 0001706528 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,872

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents 46,872 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 37,071 are vested as of the date hereof.

SEC source: 0000950170-24-073079 · ownership.xml · nonDerivative · entry 1

KLOET THOMAS A · CIK 0001635673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,456

F1 · kind: Restricted stock vests as to 100% on June 11, 2025.

F2 · balance_after: Represents (i) 21,456 shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, of which 7,320 are vested as of the current date and (ii) 6,000 shares of common stock acquired through open market purchases.

SEC source: 0000950170-24-052979 · ownership.xml · nonDerivative · entry 1

Smith Bryan Everard · CIK 0001799366 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,636

F1 · kind: The reported sale was effected pursuant to a Rule 10b5-1 trading plan.

F2 · balance_after: Represents (i) 19,646 shares or units of restricted stock, of which 3,465 are vested, (ii) 35,130 shares underlying PSUs, all of which are vested and (iii) 3,860 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041855 · ownership.xml · nonDerivative · entry 1

Brothers Brendan · CIK 0001962512 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,860

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents 48,860 shares or units of restricted stock, of which 23,526 are vested.

SEC source: 0000950170-24-041276 · ownership.xml · nonDerivative · entry 2

Zecca John · CIK 0001789709 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 124,263

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 21,161 shares or units of restricted stock, of which 4,070 are vested, and (ii) 103,102 shares underlying PSUs, all of which are vested.

SEC source: 0000950170-24-041276 · ownership.xml · nonDerivative · entry 1

Zecca John · CIK 0001789709 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,984

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041324 · ownership.xml · nonDerivative · entry 2

Tal Cohen · CIK 0001781714 · President, Market Platforms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,360

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 67,897 shares underlying PSUs, all of which are vested, (ii) 78,577 shares or units of restricted stock, of which 30,920 are vested and (iii) 886 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041324 · ownership.xml · nonDerivative · entry 1

Tal Cohen · CIK 0001781714 · President, Market Platforms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,427

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041314 · ownership.xml · nonDerivative · entry 2

Daly Michelle Lynn · CIK 0001860776 · Controller and Prin Acctg Ofcr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,110

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 12,206 shares or units of restricted stock, of which 2,472 are vested at the date hereof and (ii) 904 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041314 · ownership.xml · nonDerivative · entry 1

Daly Michelle Lynn · CIK 0001860776 · Controller and Prin Acctg Ofcr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,379

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041307 · ownership.xml · nonDerivative · entry 2

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 206,388

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 108,928 shares or units of restricted stock, of which 38,202 are vested, (ii) 93,114 shares underlying PSUs, all of which are vested and (iii) 4,346 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041307 · ownership.xml · nonDerivative · entry 1

Peterson Bradley J · CIK 0001568592 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 210,362

F1 · kind: Represents shares or units of restricted stock (RSUs) granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041293 · ownership.xml · nonDerivative · entry 2

Griggs PC Nelson · CIK 0001622632 · President, Capital Access Plat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233,047

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 91,096 shares or units of restricted stock, of which 17,558 are vested and (ii) 141,951 shares underlying PSUs, all of which are vested.

SEC source: 0000950170-24-041293 · ownership.xml · nonDerivative · entry 1

Griggs PC Nelson · CIK 0001622632 · President, Capital Access Plat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 237,024

F1 · kind: Represents shares or units of restricted stock (RSUs) granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041285 · ownership.xml · nonDerivative · entry 2

SKULE JEREMY · CIK 0001736565 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,296

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 41,277 shares or units of RSUs, of which 8,077 are vested, (ii) 75,063 shares underlying PSUs, all of which are vested and (iii) 2,956 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041285 · ownership.xml · nonDerivative · entry 1

SKULE JEREMY · CIK 0001736565 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,924

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041261 · ownership.xml · nonDerivative · entry 2

Brothers Brendan · CIK 0001962512 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,575

F2 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, 50% of which vested on April 1, 2024 and the remainder of which vest on December 31, 2024.

F3 · balance_after: Represents 53,575 shares or units of restricted stock, of which 19,050 are vested.

SEC source: 0000950170-24-041261 · ownership.xml · nonDerivative · entry 1

Brothers Brendan · CIK 0001962512 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,750

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041253 · ownership.xml · nonDerivative · entry 3

Smith Bryan Everard · CIK 0001799366 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 61,672

F3 · kind: The reported sale was effected pursuant to a Rule 10b5-1 trading plan.

F4 · price: The price reported in this box is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.72 to $63.01, inclusive. The reporting person undertakes to provide to Nasdaq, any security holder of Nasdaq or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (4) to this Form 4.

F5 · balance_after: Represents (i) 20,516 shares or units of restricted stock, of which 4,335 are vested, (ii) 37,296 shares underlying PSUs, all of which are vested and (iii) 3,860 shares purchased under the Employee Stock Purchase Plan.

SEC source: 0000950170-24-041253 · ownership.xml · nonDerivative · entry 2

Smith Bryan Everard · CIK 0001799366 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,072

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

SEC source: 0000950170-24-041253 · ownership.xml · nonDerivative · entry 1

Smith Bryan Everard · CIK 0001799366 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,554

F1 · kind: Represents shares or units of restricted stock granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-041238 · ownership.xml · nonDerivative · entry 2

FRIEDMAN ADENA T · CIK 0001240169 · Director · Chair and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,823,863

F2 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F3 · balance_after: Represents (i) 422,524 shares or units of restricted stock, of which 293,348 are vested, (ii) 1,287,986 vested shares underlying PSUs, (iii) 10,000 shares of common stock acquired through open market purchases and (iv) 103,353 shares granted under Nasdaq's Equity Incentive Plan or acquired under Nasdaq's Employee Stock Purchase Plan when Ms. Friedman was previously an employee of Nasdaq prior to returning as President in 2014.

SEC source: 0000950170-24-041238 · ownership.xml · nonDerivative · entry 1

FRIEDMAN ADENA T · CIK 0001240169 · Director · Chair and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,847,292

F1 · kind: Represents shares or units of restricted stock (RSUs) granted pursuant to Nasdaq's Equity Incentive Plan, which vest as to 33% on April 1, 2026, 33% on April 1, 2027 and the remainder on April 1, 2028.

SEC source: 0000950170-24-044480 · ownership.xml · nonDerivative · entry 1

Brothers Brendan · CIK 0001962512 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,873

F1 · kind: Represents the surrender of shares to pay withholding taxes in connection with vesting of equity previously granted under Nasdaq's Equity Incentive Plan.

F2 · balance_after: Represents 43,873 shares, of which 28,260 are vested. This amendment to the Form 4 filed on April 3, 2024 (the "Original Form 4") is being filed solely to report the omission of the forfeiture of shares to pay withholding taxes in connection with the equity award of 37,825 shares or units of restricted stock units that was granted, and vested as to 50%, on April 1, 2024, and to report the total securities owned after such transaction. All other information in the Original Form 4 was accurate.