Quick Takeaways
- Thomas Spitznagel has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $100,038.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Thomas Spitznagel
- Location
- Rockville, MD
- Summary
- The estimated net worth of Thomas Spitznagel is at least $100,038 dollars as of 17 Feb 2026. Thomas Spitznagel is the Sr VP, Technical Ops of MACROGENICS INC and owns shares of MACROGENICS INC (MGNX) stock worth about $100K.
- Signature
- /s/ Beth A. Smith, Attorney-in-fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Thomas Spitznagel and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: MACROGENICS INC ($100,038).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Thomas Spitznagel
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| MGNX | MACROGENICS INC | Sr VP, Technical Ops | $100,038 | 12 Feb 2026 |
Insider Transactions Reported by Thomas Spitznagel:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.