Grissinger Michael — SEC Form 4 filings
SEC reporting owner CIK 1757601. 7 Form 4 filings on record with FilingPulse; latest filed 2026-08-07.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-06-21 to 2026-08-07. 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, …): 10.
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 |
|---|---|---|---|---|---|
| Aprea Therapeutics, Inc. (APRE) | Director | 3 | — | — | 6 |
| Adicet Bio, Inc. (ACET) | Director | 2 | — | — | 2 |
| Akari Therapeutics Plc (AKTX) | Director | 1 | — | — | 1 |
| Lipocine Inc. (LPCN) | Director | 1 | — | — | 1 |
Form 4 filings — Grissinger Michael
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-07 | 4 | Lipocine Inc. (LPCN) | Grant/award (A): 2,000 (derivative) @ $2.11 | EDGAR |
| 2026-06-23 | 4 | Adicet Bio, Inc. (ACET) | Grant/award (A): 4,200 (derivative) @ $0 | EDGAR |
| 2026-06-17 | 4 | Aprea Therapeutics, Inc. (APRE) | Grant/award (A): 3,135 @ $0 · Grant/award (A): 12,555 (derivative) @ $0 | EDGAR |
| 2025-06-09 | 4 | Aprea Therapeutics, Inc. (APRE) | Grant/award (A): 1,045 @ $0 · Grant/award (A): 4,185 (derivative) @ $0 | EDGAR |
| 2025-04-21 | 4 | Adicet Bio, Inc. (ACET) | Grant/award (A): 70,200 (derivative) @ $0 | EDGAR |
| 2024-07-02 | 4 | Akari Therapeutics Plc (AKTX) | Grant/award (A): 5,000,000 (derivative) @ $0 | EDGAR |
| 2024-06-21 | 4 | Aprea Therapeutics, Inc. (APRE) | Grant/award (A): 1,045 @ $0 · Grant/award (A): 4,185 (derivative) @ $0 | 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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