PRIM

SEC source: 0001415889-24-013166 · form4-05142024_060502.xml · nonDerivative · entry 1

Perisich John M. · CIK 0001441444 · CHIEF LEGAL AND ADMIN OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: These shares were sold in multiple transactions at prices ranging from $49.20 to $49.47 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-013062 · form4-05132024_060501.xml · nonDerivative · entry 1

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,961

F1 · price: These shares were sold in multiple transactions at prices ranging from $49.39 to $49.72 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-012073 · form4-05022024_060502.xml · nonDerivative · entry 1

Ching Michael E. · CIK 0001924790 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,613

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012078 · form4-05022024_060514.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,017

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012074 · form4-05022024_060504.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,625

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012075 · form4-05022024_060506.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,798

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012077 · form4-05022024_060512.xml · nonDerivative · entry 1

MASHINSKI CARLA S · CIK 0001286202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,337

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012079 · form4-05022024_060517.xml · nonDerivative · entry 1

MCCALLISTER TERRY D · CIK 0001216725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,371

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012080 · form4-05022024_060520.xml · nonDerivative · entry 1

Rodriguez Jose Ramon · CIK 0001859182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,965

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-012076 · form4-05022024_060509.xml · nonDerivative · entry 1

Wagner Patricia K · CIK 0001663507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,371

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during March 2024, resulting in a grant of 800 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-008863 · form4-03212024_060301.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 217,281

F1 · price: These shares were sold in multiple transactions at prices ranging from $41.25 to $41.78 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: Shares of Common Stock held by John P. Schauerman & Claudia H. Schauerman TR UA 08/12/10 Schauerman Family Trust.

SEC source: 0001415889-24-008346 · form4-03182024_070301.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 237,281

F1 · price: These shares were sold in multiple transactions at prices ranging from $40.60 to $40.68 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: Shares of Common Stock held by John P. Schauerman & Claudia H. Schauerman TR UA 08/12/10 Schauerman Family Trust.

SEC source: 0001415889-24-008061 · form4-03142024_070301.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,217

F1 · price: These shares were sold in multiple transactions at prices ranging from $40.66 to $40.72 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-007532 · form4-03112024_060302.xml · nonDerivative · entry 1

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,068

SEC source: 0001415889-24-006905 · form4-03062024_010328.xml · derivative · entry 5

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,961

Underlying: Common Stock · 21,944 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion.

F5 · derivative.exercise_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

SEC source: 0001415889-24-006905 · form4-03062024_010328.xml · derivative · entry 4

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,017

Underlying: Common Stock · 22,949 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006905 · form4-03062024_010328.xml · nonDerivative · entry 3

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,961

F3 · kind: Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units and performance stock units.

SEC source: 0001415889-24-006905 · form4-03062024_010328.xml · nonDerivative · entry 2

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,579

F2 · price: These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company.

SEC source: 0001415889-24-006905 · form4-03062024_010328.xml · nonDerivative · entry 1

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,055

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.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006917 · form4-03062024_010340.xml · derivative · entry 6

Perisich John M. · CIK 0001441444 · CHIEF LEGAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,628

Underlying: Common Stock · 9,891 shares

Expires not disclosed

F5 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion.

F6 · derivative.exercise_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

F6 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

SEC source: 0001415889-24-006917 · form4-03062024_010340.xml · derivative · entry 5

Perisich John M. · CIK 0001441444 · CHIEF LEGAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,737

Underlying: Common Stock · 11,128 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006917 · form4-03062024_010340.xml · nonDerivative · entry 3

Perisich John M. · CIK 0001441444 · CHIEF LEGAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,448

F3 · kind: Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units and performance stock units.

SEC source: 0001415889-24-006917 · form4-03062024_010340.xml · nonDerivative · entry 2

Perisich John M. · CIK 0001441444 · CHIEF LEGAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,889

F2 · price: These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company.

SEC source: 0001415889-24-006917 · form4-03062024_010340.xml · nonDerivative · entry 1

Perisich John M. · CIK 0001441444 · CHIEF LEGAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,128

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.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006925 · form4-03062024_010348.xml · derivative · entry 5

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,305

Underlying: Common Stock · 2,026 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion.

F5 · derivative.exercise_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

SEC source: 0001415889-24-006925 · form4-03062024_010348.xml · derivative · entry 4

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,279

Underlying: Common Stock · 4,568 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006925 · form4-03062024_010348.xml · nonDerivative · entry 3

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,568

F3 · kind: Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units and performance stock units.

SEC source: 0001415889-24-006925 · form4-03062024_010348.xml · nonDerivative · entry 2

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,290

F2 · price: These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company.

SEC source: 0001415889-24-006925 · form4-03062024_010348.xml · nonDerivative · entry 1

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,542

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.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006923 · form4-03062024_010359.xml · derivative · entry 5

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,783

Underlying: Common Stock · 7,773 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion.

F5 · derivative.exercise_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2025, 25% on March 1, 2026, and 50% on March 1, 2027.

SEC source: 0001415889-24-006923 · form4-03062024_010359.xml · derivative · entry 4

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,010

Underlying: Common Stock · 9,878 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-006923 · form4-03062024_010359.xml · nonDerivative · entry 3

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,658

F3 · kind: Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units and performance stock units.

SEC source: 0001415889-24-006923 · form4-03062024_010359.xml · nonDerivative · entry 2

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,183

F2 · price: These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company.

SEC source: 0001415889-24-006923 · form4-03062024_010359.xml · nonDerivative · entry 1

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,952

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.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On March 1, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-005293 · form4-02262024_100232.xml · nonDerivative · entry 1

Ching Michael E. · CIK 0001924790 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,813

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005301 · form4-02262024_100251.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,717

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005291 · form4-02262024_100227.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,825

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005289 · form4-02262024_100241.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 998

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005297 · form4-02262024_100229.xml · nonDerivative · entry 1

MASHINSKI CARLA S · CIK 0001286202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,537

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005303 · form4-02262024_100208.xml · nonDerivative · entry 1

MCCALLISTER TERRY D · CIK 0001216725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,571

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005299 · form4-02262024_100207.xml · nonDerivative · entry 1

Rodriguez Jose Ramon · CIK 0001859182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,165

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-005295 · form4-02262024_100238.xml · nonDerivative · entry 1

Wagner Patricia K · CIK 0001663507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,571

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated August 2022, provides for the issuance of restricted stock with a value of $32,500. The price per share was based on the average closing price during December 2023, resulting in a grant of 998 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-24-002216 · form4-02012024_110249.xml · derivative · entry 3

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,847

Underlying: Common Stock · 1,250 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On January 31, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On January 31, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On January 31, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-24-002216 · form4-02012024_110249.xml · nonDerivative · entry 2

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,974

F2 · kind: Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units.

SEC source: 0001415889-24-002216 · form4-02012024_110249.xml · nonDerivative · entry 1

STRICKER TRAVIS L · CIK 0001358632 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,533

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.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On January 31, 2024, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-23-016258 · form4-12112023_071201.xml · nonDerivative · entry 1

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,106

F1 · price: These shares were sold in multiple transactions at prices ranging from $31.75 to $31.76 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-23-015988 · form4-12072023_061202.xml · nonDerivative · entry 2

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,906

F1 · price: These shares were sold in multiple transactions at prices ranging from $31.75 to $32.13 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-23-015988 · form4-12072023_061202.xml · nonDerivative · entry 1

McCormick Thomas Edward · CIK 0001704011 · Director · CEO & PRESIDENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,130

SEC source: 0001415889-23-015512 · form4-11272023_061101.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,827

F1 · price: These shares were sold in multiple transactions at prices ranging from $30.75 to $30.87 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-23-015048 · form4-11132023_061102.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,719

F1 · price: These shares were sold in multiple transactions at prices ranging from $30.63 to $30.94 per share, inclusive. The holder undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.