Thomas Spitznagel
CIK 1675464 · Sr VP, Technical Ops · last filed 2026-02-17
"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.
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Disclosed Exposure
$152.6K
Companies
1
Total Filings
21
Lifetime Open-Market Net
-$924.0K
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 |
|---|---|---|---|---|---|---|---|
| MGNX | Sr VP, Technical Ops | 38,543 | $3.96 | $152.6K | -$924.0K | 21 | 2026-02-17 |
Recent Filings · Page 2 of 3
21 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-07-20 | MGNX | Mixed | — | -$87.5K | EDGAR |
| 2021-04-19 | MGNX | Mixed | — | -$117.0K | EDGAR |
| 2021-02-24 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2020-08-21 | MGNX | Mixed | — | -$145.2K | EDGAR |
| 2020-05-21 | MGNX | Mixed | — | -$133.4K | EDGAR |
| 2020-02-24 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2019-02-25 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2019-02-08 | MGNX | Mixed | — | -$39.8K | EDGAR |
| 2018-03-06 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2017-02-16 | MGNX | Grant (A) | — | $0 | 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.