Katz Avi S — SEC Form 4 filings
SEC reporting owner CIK 1451693. 21 Form 4 filings on record with FilingPulse; latest filed 2026-09-04.
Transaction summary — filings shown
Covers all 21 filings on record, filed 2024-02-02 to 2026-09-04. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 6 legs across 4 filings — 6,347,536 shares, $3,868,691 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 6 legs across 1 filing — 250,000 shares, $619,911 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 39.
- Largest priced transaction: purchase of 2,671,232 shares @ $0.58 ($1,559,999) in QT IMAGING HOLDINGS, INC., filed 2025-03-25.
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 |
|---|---|---|---|---|---|
| QT IMAGING HOLDINGS, INC. (QTI) | Chairman, Director | 13 | 6 legs · 6,347,536 sh · $3,868,691 | — | 24 |
| BigBear.ai Holdings, Inc. (BBAI) | Director | 1 | — | 6 legs · 250,000 sh · $619,911 | — |
| Hadron Energy, Inc. (HDRN) | Chairman, Director, 10% owner | 6 | — | — | 14 |
| UpHealth, Inc. (UPHL) | Director | 1 | — | — | 1 |
Form 4 filings — Katz Avi S
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-04 | 4 | Hadron Energy, Inc. (HDRN) | Grant/award (A): 707,916 @ $1.88 | EDGAR |
| 2026-08-13 | 4 | Hadron Energy, Inc. (HDRN) | Grant/award (A): 67,395 @ $1.84 | EDGAR |
| 2026-05-27 | 4 | Hadron Energy, Inc. (HDRN) jointly with GigAcquisitions7 Corp., Dinu Raluca | Grant/award (A): 87,500 · Grant/award (A): 87,500 · Grant/award (A): 9,932,246 · Option exercise (M): 9,932,246 (derivative) · Other (J): 29,300 (derivative) · Other (J): 29,300 (derivative) | EDGAR |
| 2026-04-20 | 4 | GigCapital7 Corp. (GIGGU) jointly with GigAcquisitions7 Corp., Dinu Raluca | Grant/award (A): 29,300 (derivative) · Grant/award (A): 29,300 (derivative) | EDGAR |
| 2026-03-24 | 4 | QT IMAGING HOLDINGS, INC. (QTI) | Grant/award (A): 3,500 @ $0 | EDGAR |
| 2026-02-17 | 4 | GigCapital7 Corp. (GIGGU) jointly with GigAcquisitions7 Corp., Dinu Raluca | Sale (S): 175,000 (derivative) · Grant/award (A): 14,800 (derivative) · Grant/award (A): 14,800 (derivative) | EDGAR |
| 2026-01-23 | 4 | QT IMAGING HOLDINGS, INC. (QTIH) | Purchase (P): 24,107 @ $6.43 · Purchase (P): 48,214 (derivative) @ $0 | EDGAR |
| 2025-09-02 | 4 | GigCapital7 Corp. (GIGGU) jointly with GigAcquisitions7 Corp. | Gift (G): 100,000 (derivative) | EDGAR |
| 2025-08-13 | 4 | QT IMAGING HOLDINGS, INC. (QTIH) | Grant/award (A): 25,000 (derivative) @ $0 | EDGAR |
| 2025-04-23 | 4 | QT IMAGING HOLDINGS, INC. (QTIH) | Grant/award (A): 233,750 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | QT IMAGING HOLDINGS, INC. (QTI) | Purchase (P): 392,464 @ $0.64 · Purchase (P): 784,929 (derivative) @ $0 | EDGAR |
| 2025-03-25 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Purchase (P): 2,671,232 @ $0.58 · Purchase (P): 117,611 @ $0.58 · Purchase (P): 2,671,232 (derivative) @ $0.67 · Purchase (P): 75,435 (derivative) @ $0.67 | EDGAR |
| 2024-11-14 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Purchase (P): 2,671,232 @ $0.58 · Purchase (P): 470,890 @ $0.58 · Purchase (P): 2,671,232 (derivative) @ $0.67 · Purchase (P): 470,890 (derivative) @ $0.67 | EDGAR |
| 2024-09-11 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Other (J): 5,735,000 @ $0 · Other (J): 161,954 @ $0 | EDGAR |
| 2024-07-15 | 4/A | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Other (J): 25,116 @ $0 · Other (J): 25,116 (derivative) @ $0 | EDGAR |
| 2024-07-15 | 4/A | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Holdings only — no transactions reported | EDGAR |
| 2024-07-09 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Other (J): 105,773 @ $0 · Grant/award (A): 40,000 (derivative) @ $0 · Other (J): 105,773 (derivative) @ $0 | EDGAR |
| 2024-07-01 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Other (J): 783,591 @ $0 · Other (J): 26,593 @ $0 · Other (J): 783,591 (derivative) @ $0 · Other (J): 26,593 (derivative) @ $0 | EDGAR |
| 2024-03-13 | 4 | BigBear.ai Holdings, Inc. (BBAI) | Sale (S): 26,076 @ $2.51 · Sale (S): 23,924 @ $2.36 · Sale (S): 50,000 @ $2.42 · Sale (S): 50,000 @ $2.38 · Sale (S): 50,000 @ $2.52 · Sale (S): 50,000 @ $2.64 | EDGAR |
| 2024-03-06 | 4 | QT IMAGING HOLDINGS, INC. (QTI) jointly with GigAcquisitions5, LLC | Grant/award (A): 795,000 @ $10 · Option exercise (M): 94,364 @ $10 · Grant/award (A): 795,000 (derivative) @ $10 · Option exercise (M): 94,364 (derivative) @ $10 | EDGAR |
| 2024-02-02 | 4 | UpHealth, Inc. (UPHL) | Grant/award (A): 100,000 @ $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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