Tompkins Mark N. — SEC Form 4 filings
SEC reporting owner CIK 1455971. 22 Form 4 filings on record with FilingPulse; latest filed 2026-05-27.
Transaction summary — filings shown
Covers all 22 filings on record, filed 2024-11-05 to 2026-05-27. 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): 68 legs across 17 filings — 1,258,725 shares, $19,832,109 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: sale of 63,604 shares @ $18.70 ($1,189,395) in Aeluma, Inc., filed 2025-10-06.
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 |
|---|---|---|---|---|---|
| Aeluma, Inc. (ALMU) | — | 15 | — | 65 legs · 1,158,725 sh · $19,832,099 | 2 |
| Orielle Acquisition Corp. | Director, 10% owner | 1 | — | 1 leg · 50,000 sh · $5 | — |
| Deep Isolation Nuclear, Inc. | — | 2 | — | 1 leg · 25,000 sh · $2 | 1 |
| Surfside Acquisition Inc. | — | 2 | — | 1 leg · 25,000 sh · $2 | 1 |
| Lomond Therapeutics Holdings, Inc. | — | 1 | — | — | 1 |
| Matternet, Inc. | — | 1 | — | — | 1 |
Form 4 filings — Tompkins Mark N.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-27 | 4 | Matternet, Inc. | Other (J): 5,125,000 @ $0 | EDGAR |
| 2026-02-05 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 28,544 @ $14.63 · Sale (S): 5,956 @ $15.12 | EDGAR |
| 2026-02-02 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 27,297 @ $16.75 · Sale (S): 5,203 @ $17.16 · Sale (S): 24,092 @ $15.88 · Sale (S): 908 @ $16.79 · Sale (S): 37,500 @ $15.74 | EDGAR |
| 2026-01-22 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 29,112 @ $20.66 · Sale (S): 888 @ $21.58 · Sale (S): 30,328 @ $18.52 · Sale (S): 12,947 @ $19.30 · Sale (S): 1,715 @ $20.44 · Sale (S): 10 @ $21.24 · +2 more | EDGAR |
| 2025-12-29 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 15,000 @ $14.87 · Sale (S): 15,000 @ $16.05 · Sale (S): 6,970 @ $16.91 · Sale (S): 20,368 @ $18.01 · Sale (S): 2,662 @ $18.39 | EDGAR |
| 2025-12-22 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 20,000 @ $14.37 · Sale (S): 30,000 @ $14.70 · Sale (S): 35,000 @ $14.83 | EDGAR |
| 2025-12-11 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 10,861 @ $16.39 · Sale (S): 19,139 @ $17.06 · Sale (S): 20,000 @ $17.49 | EDGAR |
| 2025-12-09 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 11,500 @ $15.49 · Sale (S): 18,500 @ $16.37 · Sale (S): 28,390 @ $16.12 · Sale (S): 1,610 @ $16.49 · Sale (S): 39,012 @ $16.04 · Sale (S): 988 @ $16.87 | EDGAR |
| 2025-10-21 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 33,344 @ $16.75 · Sale (S): 5,913 @ $17.77 · Sale (S): 743 @ $18.45 · Sale (S): 37,500 @ $16.39 | EDGAR |
| 2025-10-17 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 24,147 @ $20.11 · Sale (S): 15,853 @ $21.31 · Sale (S): 17,540 @ $18.97 · Sale (S): 6,650 @ $19.96 · Sale (S): 810 @ $20.72 | EDGAR |
| 2025-10-14 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 30,587 @ $16.60 · Sale (S): 4,413 @ $17.16 · Sale (S): 35,031 @ $16.97 · Sale (S): 300 @ $17.57 · Sale (S): 36,855 @ $19.86 | EDGAR |
| 2025-10-09 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 26,693 @ $17.46 · Sale (S): 7,907 @ $18.66 · Sale (S): 400 @ $19.16 · Sale (S): 34,300 @ $17.46 · Sale (S): 700 @ $18.14 · Sale (S): 35,908 @ $16.54 · +1 more | EDGAR |
| 2025-10-06 | 4/A | Aeluma, Inc. (ALMU) | Sale (S): 33,800 @ $16.18 | EDGAR |
| 2025-10-06 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 34,880 @ $17.10 · Sale (S): 120 @ $17.58 · Sale (S): 18,189 @ $17.30 · Sale (S): 12,958 @ $17.94 · Sale (S): 63,604 @ $18.70 | EDGAR |
| 2025-10-02 | 4 | Aeluma, Inc. (ALMU) | Sale (S): 23,382 @ $17.52 · Sale (S): 1,618 @ $18.36 · Sale (S): 33,380 @ $16.18 · Sale (S): 200 @ $17.54 · Sale (S): 9,133 @ $16.39 · Sale (S): 41,367 @ $16.97 | EDGAR |
| 2025-09-08 | 4 | Surfside Acquisition Inc. | Other (J): 2,833,333 @ $0 | EDGAR |
| 2025-08-28 | 4 | Surfside Acquisition Inc. | Sale (S): 25,000 @ $0.00 | EDGAR |
| 2025-08-28 | 4 | Orielle Acquisition Corp. | Sale (S): 50,000 @ $0.00 | EDGAR |
| 2025-07-25 | 4 | Deep Isolation Nuclear, Inc. | Other (J): 2,833,333 @ $0 | EDGAR |
| 2025-07-18 | 4 | Aspen-1 Acquisition Inc. | Sale (S): 25,000 @ $0.00 | EDGAR |
| 2025-03-31 | 4 | Aeluma, Inc. (ALMU) | Conversion (C): 200,000 @ $3.50 · Conversion (C) @ $3.50 | EDGAR |
| 2024-11-05 | 4 | Lomond Therapeutics Holdings, Inc. | Other (J): 3,550,000 @ $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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