THOMAS J SEIFERT
CIK 1473289 · Chief Financial Officer · last filed 2026-05-19
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$142.68M
Companies
4
Total Filings
179
Lifetime Open-Market Net
-$272.77M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NET | Chief Financial Officer | 221,214 | $228.48 | $50.54M | -$269.29M | 146 | 2026-05-19 |
| WOLF | Director | 20,476 | $43.14 | $883.3K | $0 | 2 | 2025-02-03 |
| IPGP | Director | 8,946 | $114.65 | $1.03M | -$3.48M | 13 | 2022-05-25 |
| AMD | SVP, CFO | 176,383 | $511.57 | $90.23M | $0 | 12 | 2012-06-19 |
Recent Filings · Page 9 of 18
179 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-04-21 | NET | Grant (A) | +204,988 | $0 | EDGAR |
| 2023-04-19 | NET | Mixed | — | -$967.3K | EDGAR |
| 2023-04-03 | NET | Mixed | — | -$3.92M | EDGAR |
| 2023-03-21 | NET | Mixed | — | -$803.5K | EDGAR |
| 2023-02-28 | NET | Mixed | — | -$1.21M | EDGAR |
| 2023-02-17 | NET | Mixed | −25,078 | -$1.70M | EDGAR |
| 2023-02-14 | NET | Mixed | — | -$1.25M | EDGAR |
| 2023-01-31 | NET | Mixed | — | -$1.02M | EDGAR |
| 2023-01-18 | NET | Mixed | — | -$901.4K | EDGAR |
| 2023-01-04 | NET | Mixed | — | -$1.78M | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.