Abram J Adam

SEC source: 0001193125-26-374923 · ownership.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,776

F1 · shares: The Reporting Person received 1,776 shares of Class A Common Stock as a one-time award for service as a non-employee director for the fiscal year ending December 31, 2026, valued at $50,000, based on the closing price per share of $28.14 on August 27, 2026, the date of the award.

F1 · price: The Reporting Person received 1,776 shares of Class A Common Stock as a one-time award for service as a non-employee director for the fiscal year ending December 31, 2026, valued at $50,000, based on the closing price per share of $28.14 on August 27, 2026, the date of the award.

SEC source: 0001193125-26-259781 · ownership.xml · derivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 261,304

Underlying: Class A Common Stock · 3,639 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_price: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · shares: Represents the direct exchange for cash of 1,319 Opco LLC Interests directly held and 3,639 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) as a result of the full exercise of the underwriters' option to purchase additional shares of Class A common stock in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

F4 · price: Represents a price per Opco LLC Interest equal to the public offering price in the Follow-On Offering of $36.00 per share of Class A common stock, net of underwriting discounts and commissions.

F1 · derivative.exercise_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_date: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F1 · derivative.expiration_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.expiration_date: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · derivative.underlying_shares: Represents the direct exchange for cash of 1,319 Opco LLC Interests directly held and 3,639 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) as a result of the full exercise of the underwriters' option to purchase additional shares of Class A common stock in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

SEC source: 0001193125-26-259781 · ownership.xml · derivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,698

Underlying: Class A Common Stock · 1,319 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_price: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · shares: Represents the direct exchange for cash of 1,319 Opco LLC Interests directly held and 3,639 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) as a result of the full exercise of the underwriters' option to purchase additional shares of Class A common stock in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

F4 · price: Represents a price per Opco LLC Interest equal to the public offering price in the Follow-On Offering of $36.00 per share of Class A common stock, net of underwriting discounts and commissions.

F1 · derivative.exercise_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_date: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F1 · derivative.expiration_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.expiration_date: (Continued from footnote 1). Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · derivative.underlying_shares: Represents the direct exchange for cash of 1,319 Opco LLC Interests directly held and 3,639 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) as a result of the full exercise of the underwriters' option to purchase additional shares of Class A common stock in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

SEC source: 0001193125-26-255867 · ownership.xml · derivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 264,943

Underlying: Class A Common Stock · 24,260 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_price: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · shares: Represents the direct exchange for cash of 8,792 Opco LLC Interests directly held and 24,260 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

F4 · price: Represents a price per Opco LLC Interest equal to the public offering price in the Follow-On Offering of $36.00 per share of Class A common stock, net of underwriting discounts and commissions.

F1 · derivative.exercise_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_date: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F1 · derivative.expiration_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.expiration_date: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · derivative.underlying_shares: Represents the direct exchange for cash of 8,792 Opco LLC Interests directly held and 24,260 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

SEC source: 0001193125-26-255867 · ownership.xml · derivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,017

Underlying: Class A Common Stock · 8,792 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_price: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · shares: Represents the direct exchange for cash of 8,792 Opco LLC Interests directly held and 24,260 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

F4 · price: Represents a price per Opco LLC Interest equal to the public offering price in the Follow-On Offering of $36.00 per share of Class A common stock, net of underwriting discounts and commissions.

F1 · derivative.exercise_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.exercise_date: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F1 · derivative.expiration_date: Pursuant to the limited liability company agreement ("Opco LLCA") of SOLV Energy Holdings LLC ("Opco"), the Reporting Person is entitled to redeem common units of Opco ("Opco LLC Interests") for, at the Issuer's election, shares of Class A common stock of the Issuer ("Class A common stock") on a one-for-one basis or, using proceeds from a substantially contemporaneous follow-on offering or secondary offering, a cash payment equal to the price per share of the Class A common stock net of any underwriting discounts or commissions paid in such offering, in each case in accordance with the terms of the Opco LLCA. Upon a redemption of Opco LLC Interests, an equal number of shares of Class B common stock of the Issuer held by the Reporting Person will be surrendered to and cancelled by the Issuer for no additional consideration.

F2 · derivative.expiration_date: (Continued from footnote 1) Each share of Class B common stock entitles the Reporting Person to one vote per share but carries no economic rights. Opco LLC Interests do not have an expiration date.

F3 · derivative.underlying_shares: Represents the direct exchange for cash of 8,792 Opco LLC Interests directly held and 24,260 Opco LLC Interests indirectly held by the Reporting Person (and the cancellation of an equal number of shares of Class B common stock of the Issuer held by the Reporting Person) in connection with the public offering of Class A common stock by affiliates of American Securities LLC and the Issuer pursuant to the prospectus dated May 28, 2026, and accompanying registration statement on Form S-1 (File No. 333-296238), of the Issuer (the "Follow-On Offering").

SEC source: 0001620459-22-000033 · wf-form4_164639525728167.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 482,943

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $19.98 to $20.79, inclusive. The reporting person undertakes to provide to James River Group Holdings, Ltd. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

F2 · balance_after: The reporting person previously reported beneficial ownership of 800 shares held by the Ruth M. Maguire Trust in error, as the reporting person does not have investment control over the shares, and thus does not beneficially own such shares pursuant to Rule 16a-8(b)(3).

SEC source: 0001620459-20-000097 · wf-form4_160435461143869.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 458,943

F1 · shares: Represents restricted share units ("RSUs") that were forfeited by the reporting person upon the effectiveness of his retirement as Chief Executive Officer of the issuer. The 9,000 RSU award and the 18,502 RSU award were awarded to the reporting person on August 5, 2019 and August 5, 2020, respectively. The reporting person remains Non-Executive Chairman of the issuer's board of directors.

SEC source: 0001620459-20-000097 · wf-form4_160435461143869.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 477,445

F1 · shares: Represents restricted share units ("RSUs") that were forfeited by the reporting person upon the effectiveness of his retirement as Chief Executive Officer of the issuer. The 9,000 RSU award and the 18,502 RSU award were awarded to the reporting person on August 5, 2019 and August 5, 2020, respectively. The reporting person remains Non-Executive Chairman of the issuer's board of directors.

SEC source: 0001620459-20-000086 · wf-form4_159679530759627.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 486,445

F2 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 9,000 restricted share units on August 5, 2020.

SEC source: 0001620459-20-000086 · wf-form4_159679530759627.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 489,118

F1 · shares: Grant of restricted share units (payable solely in common shares of James River Group Holdings, Ltd. on the vesting date), which vest on August 5, 2021.

SEC source: 0001620459-20-000072 · wf-form4_158897089692853.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 470,616

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $31.51 to $31.93, inclusive. The reporting person undertakes to provide to James River Group Holdings, Ltd. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001620459-20-000063 · wf-form4_158413091068978.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 455,232

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $33.26 to $33.82, inclusive. The reporting person undertakes to provide to James River Group Holdings, Ltd. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001620459-20-000042 · wf-form4_158231931578670.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 440,232

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 3,565 restricted share units on February 20, 2020.

SEC source: 0001620459-19-000091 · wf-form4_157367954512134.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 441,310

F2 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $34.9900 to $35.8150, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001620459-19-000091 · wf-form4_157367954512134.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 428,610

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $34.96 to $35.00, inclusive. The reporting person undertakes to provide to James River Group Holdings, Ltd. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001620459-19-000075 · wf-form4_156518167118393.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 427,025

F1 · shares: Grant of restricted share units (payable solely in common shares of the Issuer on each vesting date), vesting in two equal annual installments on August 5th of each of the years 2020 through 2021.

SEC source: 0001620459-19-000031 · wf-form4_155078521420960.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 409,025

F1 · shares: Grant of restricted share units (payable solely in common shares of the Issuer on the vesting date), which vest on February 20, 2020.

SEC source: 0000950138-18-000181 · edgar.xml · derivative · entry 4

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 87,199 shares

Expires 2021-12-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The share option vested in three equal annual installments on December 12 of each of the years 2015 through 2017.

SEC source: 0000950138-18-000181 · edgar.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 405,460

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the exercise of the options referenced in Table II.

SEC source: 0000950138-18-000181 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 420,393

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950138-18-000159 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 333,194

F1 · shares: Grant of restricted share units (payable solely in common shares of the Issuer on the vesting date), which vest on February 21, 2019.

SEC source: 0000950138-18-000083 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,417

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 540 restricted share units on January 24, 2018.

SEC source: 0000950138-18-000002 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,562

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 19,000 restricted share units on January 1, 2018.

SEC source: 0000950138-17-000822 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 335,435

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 79,365 restricted share units on December 17, 2017.

SEC source: 0000950138-17-000756 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 368,247

SEC source: 0000950138-17-000431 · edgar.xml · derivative · entry 4

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,199

Underlying: Common Shares · 174,398 shares

Expires 2021-12-11

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option, originally representing the right to purchase a total of 261,597 shares, becomes exercisable in three equal annual installments which commenced on December 12, 2015.

SEC source: 0000950138-17-000431 · edgar.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 768,247

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the exercise price and tax liability incident to the exercise of the options referenced in Table II.

SEC source: 0000950138-17-000431 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 897,718

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001366367-17-000039 · wf-form4_148940678502883.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 266,915

SEC source: 0001366367-17-000018 · wf-form4_148902311157738.xml · nonDerivative · entry 3

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 354,219

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001366367-17-000018 · wf-form4_148902311157738.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,304

SEC source: 0001366367-17-000045 · wf-form4a_149246138779586.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 429,022

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001366367-17-000018 · wf-form4_148902311157738.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,007

SEC source: 0001366367-17-000017 · wf-form4_148885219643102.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,107

SEC source: 0001366367-17-000017 · wf-form4_148885219643102.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,007

SEC source: 0000950138-17-000204 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 723,320

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 24,945 restricted share units on December 16, 2017.

SEC source: 0000950138-17-000200 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 734,531

F1 · shares: Grant of restricted share units (payable solely in common shares of the Issuer on each vesting date), vesting in three equal annual installments on February 14 of each of the years 2018 through 2020.

SEC source: 0001366367-17-000005 · wf-form4_148476213226712.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 404,007

SEC source: 0001366367-17-000002 · wf-form4_148408299984230.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 432,444

SEC source: 0000950138-16-001519 · edgar.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 714,991

F1 · shares: The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 79,365 restricted share units on December 17, 2016.

SEC source: 0001366367-16-000183 · wf-form4_148192418735874.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 447,809

SEC source: 0001366367-16-000183 · wf-form4_148192418735874.xml · nonDerivative · entry 1

Abram J Adam · CIK 0001335026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 502,309

SEC source: 0000950138-17-000110 · edgar.xml · nonDerivative · entry 6

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ruth M. Maguire Trust

Disclosed balance after: 800

SEC source: 0000950138-17-000110 · edgar.xml · nonDerivative · entry 5

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ruth M. Maguire Trust

Disclosed balance after: 700

SEC source: 0000950138-17-000110 · edgar.xml · nonDerivative · entry 4

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ruth M. Maguire Trust

Disclosed balance after: 600

SEC source: 0000950138-17-000110 · edgar.xml · nonDerivative · entry 3

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ruth M. Maguire Trust

Disclosed balance after: 400

SEC source: 0000950138-17-000110 · edgar.xml · nonDerivative · entry 2

Abram J Adam · CIK 0001335026 · Director · Chairman of the Board and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ruth M. Maguire Trust

Disclosed balance after: 300