PARKER MARK S — SEC Form 4 filings
SEC reporting owner CIK 1915363. 23 Form 4 filings on record with FilingPulse; latest filed 2026-08-11.
Transaction summary — filings shown
Covers all 23 filings on record, filed 2024-02-02 to 2026-08-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 24.
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.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| HYDROFARM HOLDINGS GROUP, INC. (HYFM) | President | 23 | — | — | 24 |
Form 4 filings — PARKER MARK S
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-11 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 740 @ $1.60 | EDGAR |
| 2026-01-08 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 1,672 @ $1.51 | EDGAR |
| 2025-08-20 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 370 @ $4.51 | EDGAR |
| 2025-08-13 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 771 @ $4.49 | EDGAR |
| 2025-04-10 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 1,380 @ $1.78 | EDGAR |
| 2025-03-04 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Grant/award (A): 2,751 @ $0 | EDGAR |
| 2025-02-28 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 84 @ $5.39 | EDGAR |
| 2025-01-03 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Grant/award (A): 100,000 @ $0 | EDGAR |
| 2024-11-04 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 138 @ $0.68 | EDGAR |
| 2024-10-02 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 134 @ $0.69 | EDGAR |
| 2024-09-04 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 134 @ $0.44 | EDGAR |
| 2024-08-20 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 3,624 @ $0.55 | EDGAR |
| 2024-08-12 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 7,248 @ $0.54 | EDGAR |
| 2024-08-02 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 144 @ $0.64 | EDGAR |
| 2024-07-02 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 132 @ $0.69 | EDGAR |
| 2024-06-03 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 151 @ $0.78 | EDGAR |
| 2024-05-02 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 151 @ $0.97 | EDGAR |
| 2024-04-04 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 151 @ $1.01 | EDGAR |
| 2024-03-27 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 3,410 @ $0.93 · Tax withholding (F): 5,885 @ $0.93 | EDGAR |
| 2024-03-05 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 151 @ $0.90 | EDGAR |
| 2024-02-27 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 814 @ $0.89 | EDGAR |
| 2024-02-20 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Grant/award (A): 12,061 @ $0 | EDGAR |
| 2024-02-02 | 4 | HYDROFARM HOLDINGS GROUP, INC. (HYFM) | Tax withholding (F): 151 @ $0.99 | 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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