Henderson Robert S — SEC Form 4 filings

SEC reporting owner CIK 1352561. 4 Form 4 filings on record with FilingPulse; latest filed 2026-03-02.

Transaction summary — filings shown

Covers all 4 filings on record, filed 2024-10-18 to 2026-03-02. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.

By issuer — same filings

Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.

IssuerRole (as filed)FilingsPurchases (P)Sales (S)Other legs
Perimeter Solutions, Inc. (PRM)Director417

Form 4 filings — Henderson Robert S

FiledFormIssuerReported transactionsSource
2026-03-024Perimeter Solutions, Inc. (PRM)Grant/award (A): 2,655 (derivative) @ $0 · Grant/award (A): 6,194 (derivative) @ $0 · Grant/award (A): 7,000 (derivative) @ $0 · Grant/award (A): 7,000 (derivative) @ $0 · Grant/award (A): 7,000 (derivative) @ $0 · Grant/award (A): 7,000 (derivative) @ $0 · +1 moreEDGAR
2025-02-214Perimeter Solutions, Inc. (PRM)Grant/award (A): 7,000 (derivative) @ $0 · Grant/award (A): 14,000 (derivative) @ $0 · Grant/award (A): 14,000 (derivative) @ $0 · Grant/award (A): 21,000 (derivative) @ $0 · Grant/award (A): 5,250 (derivative) @ $0EDGAR
2024-10-224/APerimeter Solutions, SA (PRM)Option exercise (M): 81,250 @ $12 · Disposition to issuer (D): 77,834 @ $12.53 · Option exercise (M): 325,000 (derivative) @ $12.53EDGAR
2024-10-184Perimeter Solutions, SA (PRM)Option exercise/expiry (X): 3,416 · Option exercise/expiry (X): 325,000 (derivative)EDGAR

FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.

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