Williamson Steven S. — SEC Form 4 filings
SEC reporting owner CIK 1478582. 7 Form 4 filings on record with FilingPulse; latest filed 2025-09-03.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-01-17 to 2025-09-03. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 14,245 shares, $97,436 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 7 legs across 5 filings — 50,756 shares, $257,393 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: sale of 27,689 shares @ $7.14 ($197,699) in Pulmonx Corp, filed 2025-03-05.
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 |
|---|---|---|---|---|---|
| Pulmonx Corp (LUNG) | PRESIDENT AND CEO, Director | 5 | 1 leg · 14,245 sh · $97,436 | 5 legs · 47,260 sh · $244,195 | 4 |
| Outset Medical, Inc. (OM) | Chief Commercial Officer | 2 | — | 2 legs · 3,496 sh · $13,198 | 3 |
Form 4 filings — Williamson Steven S.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2025-09-03 | 4 | Pulmonx Corp (LUNG) | Sale (S): 5,118 @ $1.60 · Sale (S): 4,530 @ $1.60 | EDGAR |
| 2025-06-04 | 4 | Pulmonx Corp (LUNG) | Sale (S): 5,262 @ $3.13 · Sale (S): 4,661 @ $3.13 | EDGAR |
| 2025-03-05 | 4 | Pulmonx Corp (LUNG) | Sale (S): 27,689 @ $7.14 · Grant/award (A): 181,696 @ $0 · Grant/award (A): 128,395 (derivative) @ $0 | EDGAR |
| 2024-08-22 | 4 | Pulmonx Corp (LUNG) | Purchase (P): 14,245 @ $6.84 | EDGAR |
| 2024-03-19 | 4 | Pulmonx Corp (LUNG) | Grant/award (A): 205,286 @ $0 · Grant/award (A): 425,116 (derivative) @ $0 | EDGAR |
| 2024-02-16 | 4 | Outset Medical, Inc. (OM) | Sale (S): 2,500 @ $3.57 | EDGAR |
| 2024-01-17 | 4 | Outset Medical, Inc. (OM) | Grant/award (A): 112,000 @ $0 · Grant/award (A): 100,000 @ $0 · Grant/award (A): 5,904 @ $0 · Sale (S): 996 @ $4.29 | 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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