Williamson Steven S.
- SEC CIK
- 0001478582
No open-market purchases or sales filed in the past year.
Current role at each company
- LUNG Pulmonx CorpPRESIDENT AND CEOas of Sep 3, 2025
- OM Outset Medical, Inc.Chief Commercial Officeras of Feb 16, 2024
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Williamson Steven S. as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
LUNG Pulmonx Corp
PRESIDENT AND CEO4 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 3, 2025 (view filing) | Sep 2 | 1 day | Williamson Steven S.PRESIDENT AND CEO | SSale | −9.65K | $1.60 | −$15.4K | −2.6%359.0K after | 2 lots |
| Jun 4, 2025 (view filing) | Jun 2 | 2 days | Williamson Steven S.PRESIDENT AND CEO | SSale | −9.92K | $3.13 | −$31.1K | −2.6%366.1K after | 2 lots |
| Mar 5, 2025 (view filing) | Mar 3 | 2 days | Williamson Steven S.PRESIDENT AND CEO | SSale | −27.7K | $7.14 | −$197.7K | −12.5%194.3K after | |
| Aug 22, 2024 (view filing) | Aug 20 | 2 days | Williamson Steven S.PRESIDENT AND CEO | PPurchase | +14.2K | $6.84 | +$97.4K | +6.9%219.5K after |
OM Outset Medical, Inc.
Chief Commercial Officer12 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 16, 2024 (view filing) | Feb 15 | 1 day | Williamson Steven S.Chief Commercial Officer | SSale | −2.50K | $3.57 | −$8.93K | −0.8%320.3K after | |
| Jan 17, 2024 (view filing) | Jan 16 | 1 day | Williamson Steven S.Chief Commercial Officer | SSale | −996 | $4.29 | −$4.27K | −0.3%322.8K after | |
| Jan 8, 2024 (view filing) | Jan 8 | Same day | Williamson Steven S.Chief Commercial Officer | SSale | −7.05K | $5.49 | −$38.7K | −6.2%105.9K after | |
| Nov 17, 2023 (view filing) | Nov 16 | 1 day | Williamson Steven S.Chief Commercial Officer | SSale | −3.58K | $4.76 | −$17.1K | −3.1%113.0K after | |
| Aug 17, 2023 (view filing) | Aug 16 | 1 day | Williamson Steven S.Chief Commercial Officer | SSale | −635 | $15.10 | −$9.59K | −0.5%116.6K after | |
| May 16, 2023 (view filing) | May 16 | Same day | Williamson Steven S.Chief Commercial Officer | SSale | −681 | $19.91 | −$13.6K | −0.6%117.2K after | |
| May 8, 2023 (view filing) | May 8 | Same day | Williamson Steven S.Chief Commercial Officer | SSale | −10.0K | $19.83 | −$198.3K | −7.8%117.9K after | |
| Feb 16, 2023 (view filing) | Feb 16 | Same day | Williamson Steven S.Chief Commercial Officer | SSale | −694 | $24.36 | −$16.9K | −0.5%126.5K after | |
| Jan 30, 2023 (view filing) | Jan 27 | 3 days | Williamson Steven S.Chief Commercial Officer | SSale | −3.02K | $27.92 | −$84.4K | −2.3%127.2K after | |
| Nov 17, 2022 (view filing) | Nov 16 | 1 day | Williamson Steven S.Chief Commercial Officer | SSale | −3.42K | $19.29 | −$66.0K | −5.2%61.8K after |