Seifert Thomas J
- SEC CIK
- 0001473289
In the past year, 13 open-market sale filings worth $55.9M and no purchases.
Current role at each company
- NET Cloudflare, Inc.Chief Financial Officeras of Sep 21, 2026
- WOLF Wolfspeed, Inc.Directoras of Feb 3, 2025
- IPGP Ipg Photonics CorpDirectoras of May 25, 2022
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
- $55.9M
- 13 filings
- Net
- −$55.9M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Seifert Thomas J 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.
NET Cloudflare, Inc.
Chief Financial Officer103 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 7, 2021 (view filing) | Jul 6 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $108.06 | −$2.16M | −28.5%50.2K after | 3 lots |
| Jul 22, 2021 (view filing) | Jul 20 | 2 days | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $106.78 | −$2.14M | −28.5%50.2K after | 7 lots |
| Aug 5, 2021 (view filing) | Aug 3 | 2 days | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $118.76 | −$2.38M | −28.5%50.2K after | 3 lots |
| Aug 18, 2021 (view filing) | Aug 17 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $119.37 | −$2.39M | −28.5%50.2K after | 3 lots |
| Aug 31, 2021 (view filing) | Aug 31 | Same day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $121.48 | −$2.43M | −28.5%50.2K after | 3 lots |
| Sep 15, 2021 (view filing) | Sep 14 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $127.30 | −$2.55M | −28.5%50.2K after | 4 lots |
| Sep 29, 2021 (view filing) | Sep 28 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $114.43 | −$2.29M | −28.5%50.2K after | 6 lots |
| Oct 13, 2021 (view filing) | Oct 12 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $148.42 | −$2.97M | −28.5%50.2K after | 6 lots |
| Oct 28, 2021 (view filing) | Oct 26 | 2 days | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $186.36 | −$3.73M | −28.5%50.2K after | 8 lots |
| Nov 10, 2021 (view filing) | Nov 9 | 1 day | Seifert Thomas JChief Financial Officer | SSaleClass A Common Stock | −20.0K | $204.31 | −$4.09M | −28.5%50.2K after | 10 lots |