St Dennis Thomas
- SEC CIK
- 0001339595
In the past year, 6 open-market sale filings worth $1.56M and no purchases.
Current role at each company
- FORM Formfactor IncDirectoras of Jun 16, 2026
- ACLS Axcelis Technologies IncDirectoras of May 26, 2026
- VECO Veeco Instruments IncDirectoras of May 13, 2026
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
- $1.56M
- 6 filings
- Net
- −$1.56M
- Bought minus sold
- Companies
- 3
- With open-market trades
Trades
Every Form 4 that lists St Dennis Thomas 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.
FORM Formfactor Inc
Director10 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 16, 2026 (view filing) | Jun 15 | 1 day | St Dennis ThomasDirector | SSale | −2.80K | $151.49 | −$424.2K | −8.8%29.1K after | |
| May 21, 2026 (view filing) | May 19 | 2 days | St Dennis ThomasDirector | SSale | −1.00K | $115.84 | −$115.8K | −3.0%31.9K after | |
| Feb 11, 2026 (view filing) | Feb 10 | 1 day | St Dennis ThomasDirector | SSale | −7.43K | $93.84 | −$697.3K | −19.1%31.5K after | 2 lots |
| Nov 17, 2025 (view filing) | Nov 17 | Same day | St Dennis ThomasDirector | SSale | −2.00K | $49.85 | −$99.7K | −4.9%39.0K after | |
| May 30, 2025 (view filing) | May 29 | 1 day | St Dennis ThomasDirector | SSale | −3.00K | $31.24 | −$93.7K | −6.8%41.0K after | |
| Nov 6, 2024 (view filing) | Nov 5 | 1 day | St Dennis ThomasDirector | SSale | −3.10K | $39.11 | −$121.2K | −7.6%37.4K after | |
| May 13, 2024 (view filing) | May 10 | 3 days | St Dennis ThomasDirector | SSale | −2.00K | $56.30 | −$112.6K | −5.2%36.7K after | |
| Nov 15, 2023 (view filing) | Nov 14 | 1 day | St Dennis ThomasDirector | SSale | −3.79K | $38.24 | −$145.0K | −8.9%38.7K after | |
| Feb 17, 2023 (view filing) | Feb 16 | 1 day | St Dennis ThomasDirector | SSale | −13.0K | $32.31 | −$420.0K | −29.6%30.9K after | |
| Feb 9, 2022 (view filing) | Feb 8 | 1 day | St Dennis ThomasDirector | SSale | −6.00K | $41.63 | −$249.8K | −13.0%40.1K after |
ACLS Axcelis Technologies Inc
Director5 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 (view filing) | May 22 | 4 days | St Dennis ThomasDirector | SSale | −900 | $155.37 | −$139.8K | −4.8%17.7K after | |
| Feb 13, 2023 (view filing) | Feb 13 | Same day | St Dennis ThomasDirector | SSale | −12.0K | $127.02 | −$1.52M | −53.0%10.6K after | |
| Nov 18, 2022 (view filing) | Nov 18 | Same day | St Dennis ThomasDirector | SSale | −3.00K | $76.66 | −$230.0K | −11.7%22.6K after | |
| Feb 10, 2022 (view filing) | Feb 10 | Same day | St Dennis ThomasDirector | SSale | −3.00K | $72.81 | −$218.4K | −11.6%22.9K after | |
| Aug 30, 2021 (view filing) | Aug 30 | Same day | St Dennis ThomasDirector | SSale | −3.50K | $50.32 | −$176.1K | −11.9%25.9K after |
VECO Veeco Instruments Inc
Director4 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 13, 2026 (view filing) | May 11 | 2 days | St Dennis ThomasDirector | SSale | −1.40K | $61.93 | −$86.7K | −2.2%61.7K after | |
| May 14, 2024 (view filing) | May 13 | 1 day | St Dennis ThomasDirector | SSale | −4.00K | $37.72 | −$150.9K | −7.2%51.9K after | |
| Dec 1, 2023 (view filing) | Nov 30 | 1 day | St Dennis ThomasDirector | SSale | −7.00K | $28.52 | −$199.8K | −11.8%52.2K after | |
| May 17, 2022 (view filing)4:39 PM ET | May 16 | 1 day | St Dennis ThomasDirector | PPurchase | +2.50K | $21.60 | +$54.0K | +5.0%52.4K after |