PRIM

SEC source: 0001415889-25-020624 · form4-07302025_100726.xml · nonDerivative · entry 1

MCCALLISTER TERRY D · CIK 0001216725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,227

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during June 2025, resulting in a grant of 499 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-020622 · form4-07302025_100758.xml · nonDerivative · entry 1

Wagner Patricia K · CIK 0001663507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,856

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during June 2025, resulting in a grant of 499 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-020614 · form4-07302025_100744.xml · nonDerivative · entry 1

Rodriguez Jose Ramon · CIK 0001859182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,821

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during June 2025, resulting in a grant of 499 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-019590 · form4-07092025_060701.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 102,281

F1 · price: These shares were sold in multiple transactions at prices ranging from $77.15 to $77.60 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: 0001415889-25-017040 · form4-06122025_060601.xml · nonDerivative · entry 1

Wagner Patricia K · CIK 0001663507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,357

F1 · ownership.direct: On June 11, 2025, the reporting person transferred 14,006 shares of PRIM common stock to the Wagner Family Trust dated March 24, 2008 for no consideration. The reporting person is the trustee of the trust, and the reporting person and members of her immediate family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust.

SEC source: 0001415889-25-011678 · form4-05012025_060507.xml · nonDerivative · entry 1

Ching Michael E. · CIK 0001924790 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,970

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011679 · form4-05012025_060509.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,966

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011683 · form4-05012025_060517.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,155

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011680 · form4-05012025_060511.xml · nonDerivative · entry 1

MASHINSKI CARLA S · CIK 0001286202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,811

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011681 · form4-05012025_060513.xml · nonDerivative · entry 1

MCCALLISTER TERRY D · CIK 0001216725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,728

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011684 · form4-05012025_060519.xml · nonDerivative · entry 1

Wagner Patricia K · CIK 0001663507 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,363

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-011682 · form4-05012025_060515.xml · nonDerivative · entry 1

Rodriguez Jose Ramon · CIK 0001859182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,322

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025, resulting in a grant of 589 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001620715-25-000004 · form4a-11132025_011142.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director · INTERIM PRESIDENT & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,802

F1 · date: The originally filed Form 4 (SEC Accession No. 0001415889-25-011677) for the Reporting Person inadvertently duplicated the transaction previously reported on his Form 4 filed on 11/02/2023 (SEC Accession No. 0001415889-23-014748). That 2023 Form 4 remains unchanged, and this amended Form 4 has been filed to report the 04/30/2025 transaction intended to be reported on 05/01/2025.

F2 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2025. In March of 2025 Mr. King's employment status with the company changed which resulted in a prorated grant of 517 shares. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-009764 · form4-04022025_060411.xml · derivative · entry 2

Kinch Jeremy · CIK 0001703828 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,161

Underlying: Common Stock · 976 shares

Expires not disclosed

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.

F2 · derivative.exercise_date: The restricted stock units vest 25% on April 1, 2026, 25% on April 1, 2027, and 50% on April 1, 2028.

F2 · derivative.expiration_date: The restricted stock units vest 25% on April 1, 2026, 25% on April 1, 2027, and 50% on April 1, 2028.

SEC source: 0001415889-25-009763 · form4-04022025_060409.xml · derivative · entry 2

King David Lee · CIK 0001620715 · Director · INTERIM PRESIDENT & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,774

Underlying: Common Stock · 21,774 shares

Expires not disclosed

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.

F2 · derivative.exercise_date: The restricted stock units vest 100% on April 1, 2026.

F2 · derivative.expiration_date: The restricted stock units vest 100% on April 1, 2026.

SEC source: 0001415889-25-008647 · form4-03192025_060301.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,796

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.50 to $64.60 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: 0001415889-25-008647 · form4-03192025_060301.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,060

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.50 to $64.47 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: 0001415889-25-007285 · form4-03062025_060303.xml · nonDerivative · entry 1

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,586

SEC source: 0001415889-25-007284 · form4-03062025_060301.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,377

SEC source: 0001415889-25-006662 · form4-03042025_060310.xml · derivative · entry 5

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,185

Underlying: Common Stock · 4,099 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, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

SEC source: 0001415889-25-006662 · form4-03042025_060310.xml · derivative · entry 4

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,086

Underlying: Common Stock · 5,384 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, 2025, 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, 2025, 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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006662 · form4-03042025_060310.xml · nonDerivative · entry 3

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,086

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: 0001415889-25-006662 · form4-03042025_060310.xml · nonDerivative · entry 2

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,599

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: 0001415889-25-006662 · form4-03042025_060310.xml · nonDerivative · entry 1

Kinch Jeremy · CIK 0001703828 · COSO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,890

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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006661 · form4-03042025_060308.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,194

Underlying: Common Stock · 12,690 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, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

SEC source: 0001415889-25-006661 · form4-03042025_060308.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,504

Underlying: Common Stock · 22,016 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, 2025, 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, 2025, 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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006661 · form4-03042025_060308.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,186

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: 0001415889-25-006661 · form4-03042025_060308.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,552

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: 0001415889-25-006661 · form4-03042025_060308.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,406

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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006659 · form4-03042025_060303.xml · derivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,525

Underlying: Common Stock · 5,720 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, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

F6 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

SEC source: 0001415889-25-006659 · form4-03042025_060303.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,805

Underlying: Common Stock · 9,919 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, 2025, 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, 2025, 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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006659 · form4-03042025_060303.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,695

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: 0001415889-25-006659 · form4-03042025_060303.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,892

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: 0001415889-25-006659 · form4-03042025_060303.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: 9,919

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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006660 · form4-03042025_060306.xml · derivative · entry 5

STRICKER TRAVIS L · CIK 0001358632 · CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,525

Underlying: Common Stock · 1,673 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, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

SEC source: 0001415889-25-006660 · form4-03042025_060306.xml · derivative · entry 4

STRICKER TRAVIS L · CIK 0001358632 · CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,852

Underlying: Common Stock · 3,659 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, 2025, 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, 2025, 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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006660 · form4-03042025_060306.xml · nonDerivative · entry 3

STRICKER TRAVIS L · CIK 0001358632 · CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,635

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: 0001415889-25-006660 · form4-03042025_060306.xml · nonDerivative · entry 2

STRICKER TRAVIS L · CIK 0001358632 · CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,546

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: 0001415889-25-006660 · form4-03042025_060306.xml · nonDerivative · entry 1

STRICKER TRAVIS L · CIK 0001358632 · CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,356

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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006658 · form4-03042025_060301.xml · derivative · entry 5

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,779

Underlying: Common Stock · 4,495 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, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

F5 · derivative.expiration_date: The restricted stock units vest 25% on March 1, 2026, 25% on March 1, 2027, and 50% on March 1, 2028.

SEC source: 0001415889-25-006658 · form4-03042025_060301.xml · derivative · entry 4

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,284

Underlying: Common Stock · 8,595 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, 2025, 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, 2025, 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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-006658 · form4-03042025_060301.xml · nonDerivative · entry 3

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,116

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: 0001415889-25-006658 · form4-03042025_060301.xml · nonDerivative · entry 2

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,186

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: 0001415889-25-006658 · form4-03042025_060301.xml · nonDerivative · entry 1

Dodgen Kenneth Morris · CIK 0001707945 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,653

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, 2025, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.

SEC source: 0001415889-25-005192 · form4-02222025_120236.xml · nonDerivative · entry 1

Ching Michael E. · CIK 0001924790 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,381

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-005197 · form4-02222025_120224.xml · nonDerivative · entry 1

King David Lee · CIK 0001620715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,285

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-005199 · form4-02222025_120243.xml · nonDerivative · entry 1

Cook Stephen C. · CIK 0001441075 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,375

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-005202 · form4-02222025_120234.xml · nonDerivative · entry 1

Schauerman John P. · CIK 0001440820 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,566

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-005191 · form4-02222025_120201.xml · nonDerivative · entry 1

MASHINSKI CARLA S · CIK 0001286202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,222

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

SEC source: 0001415889-25-005198 · form4-02222025_120259.xml · nonDerivative · entry 1

MCCALLISTER TERRY D · CIK 0001216725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,139

F1 · price: The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during December 2024, resulting in a grant of 467 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.