DUGGAN ROBERT W — SEC Form 4 filings
SEC reporting owner CIK 1055919. 21 Form 4 filings on record with FilingPulse; latest filed 2026-06-15.
Transaction summary — filings shown
Covers all 21 filings on record, filed 2024-06-24 to 2026-06-15. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 14 legs across 10 filings — 5,944,853 shares, $89,419,952 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 36.
- Largest priced transaction: purchase of 3,810,000 shares @ $13.12 ($49,987,200) in Summit Therapeutics Inc., filed 2026-06-12.
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 |
|---|---|---|---|---|---|
| Summit Therapeutics Inc. (SMMT) | Co-Chief Executive Officer, Director, 10% owner | 10 | 5 legs · 4,275,074 sh · $57,931,939 | — | 12 |
| PULSE BIOSCIENCES, INC. (PLSE) | Director, 10% owner | 11 | 9 legs · 1,669,779 sh · $31,488,012 | — | 24 |
Form 4 filings — DUGGAN ROBERT W
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-15 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Grant/award (A): 30,000 (derivative) @ $0 · Grant/award (A): 12,495 (derivative) @ $0 | EDGAR |
| 2026-06-12 | 4 | Summit Therapeutics Inc. (SMMT) | Purchase (P): 3,810,000 @ $13.12 | EDGAR |
| 2026-06-04 | 4 | Summit Therapeutics Inc. (SMMT) | Purchase (P): 100,000 @ $14.60 | EDGAR |
| 2026-05-15 | 4/A | PULSE BIOSCIENCES, INC. (PLSE) | Purchase (P): 660,233 @ $19.69 | EDGAR |
| 2026-05-11 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Purchase (P): 660,233 @ $19.69 | EDGAR |
| 2026-01-06 | 4 | Summit Therapeutics Inc. (SMMT) | Grant/award (A): 11,232 (derivative) @ $8.76 | EDGAR |
| 2025-10-23 | 4 | Summit Therapeutics Inc. (SMMT) | Grant/award (A): 13,980,789 @ $18.74 · Grant/award (A): 266,808 @ $18.74 · Purchase (P): 26,680 @ $18.74 | EDGAR |
| 2025-09-12 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Purchase (P): 34,659 @ $14.66 · Purchase (P): 12,800 @ $14.77 · Purchase (P): 145,140 @ $14.41 | EDGAR |
| 2025-09-11 | 4 | Summit Therapeutics Inc. (SMMT) | Purchase (P): 333,394 @ $17.68 · Purchase (P): 5,000 @ $18.07 | EDGAR |
| 2025-08-19 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Grant/award (A): 30,000 (derivative) @ $0 · Grant/award (A): 20,792 (derivative) @ $0 | EDGAR |
| 2025-06-02 | 4 | Summit Therapeutics Inc. (SMMT) | Option exercise (M): 74,545 @ $2.64 · Option exercise (M): 74,545 (derivative) @ $0 | EDGAR |
| 2025-05-01 | 4 | Summit Therapeutics Inc. (SMMT) | Grant/award (A): 1,040,000 (derivative) · Grant/award (A): 400,000 (derivative) · Grant/award (A): 9,590,558 (derivative) | EDGAR |
| 2025-04-09 | 4 | Summit Therapeutics Inc. (SMMT) | Option exercise/expiry (X): 3,985,055 @ $1.58 · Option exercise/expiry (X): 3,985,055 (derivative) @ $0 | EDGAR |
| 2025-01-06 | 4 | Summit Therapeutics Inc. (SMMT) | Grant/award (A): 10,724 (derivative) @ $9.18 | EDGAR |
| 2024-12-18 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Option exercise/expiry (X): 5,187,824 @ $11 · Option exercise/expiry (X): 69,020 @ $11 · Option exercise/expiry (X): 49,312 @ $11 · Option exercise/expiry (X): 2,593,912 (derivative) · Option exercise/expiry (X): 2,593,912 (derivative) · Option exercise/expiry (X): 34,510 (derivative) · +3 more | EDGAR |
| 2024-12-17 | 4 | PULSE BIOSCIENCES, INC. (PLES) | Purchase (P): 45,404 @ $17.13 | EDGAR |
| 2024-12-17 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Purchase (P): 55,256 @ $17.18 | EDGAR |
| 2024-12-13 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Purchase (P): 6,054 @ $16.74 · Purchase (P): 50,000 @ $17.42 | EDGAR |
| 2024-09-13 | 4 | Summit Therapeutics Inc. (SMMT) | Grant/award (A): 3,325,991 @ $22.70 | EDGAR |
| 2024-07-09 | 4 | PULSE BIOSCIENCES, INC. (PLSE) | Option exercise/expiry (X): 5,187,824 · Option exercise/expiry (X): 69,020 · Option exercise/expiry (X): 49,312 · Purchase (P): 2,593,912 (derivative) · Purchase (P): 2,593,912 (derivative) · Purchase (P): 34,510 (derivative) · +3 more | EDGAR |
| 2024-06-24 | 4 | Pulse Biosciences, Inc. (PLSE) | Grant/award (A): 20,000 (derivative) @ $0 · Grant/award (A): 16,247 (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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