Quick Takeaways
- Brian Piper has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value is not available.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Brian Piper
- Location
- Boston, MA
- Signature
- /s/ Aaron M. Grossman, Attorney-in-Fact for Brian Piper
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Brian Piper 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: Prelude Therapeutics Inc ().
- 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 Brian Piper
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| PRLD | Prelude Therapeutics Inc | Chief Financial Officer | 25 Aug 2021 | |||
| SANA | Sana Biotechnology, Inc. | EVP, Chief Financial Officer | 17 Feb 2026 |
Insider Transactions Reported by Brian Piper:
| 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.