Quick Takeaways
- Tomas Kiselak has 3 issuer positions tracked on this page.
- Estimated disclosed ownership value: $47,180,500.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Tomas Kiselak
- Location
- West Conshohocken, PA
- Summary
- The estimated net worth of Tomas Kiselak is at least $47,180,500 dollars as of 02 Jul 2025. Tomas Kiselak is the Director of Zenas BioPharma, Inc. and owns shares of Zenas BioPharma, Inc. (ZBIO) stock worth about $47.18M.
- Signature
- /s/ Jennifer Tousignant, Attorney-in-fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Tomas Kiselak 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: Zenas BioPharma, Inc. ($47,180,500).
- Past-year value change for that position: +$3,000,000.
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 Tomas Kiselak
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| ZBIO | Zenas BioPharma, Inc. | Director | $47,180,500 | +$3,000,000 | +6.8% | 31 Mar 2026 |
| DMRA | Damora Therapeutics, Inc. | 10%+ Owner | 23 Mar 2026 | |||
| VRDN | Viridian Therapeutics, Inc.\DE | Director | 01 Jul 2025 |
Insider Transactions Reported by Tomas Kiselak:
| 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.