Quick Takeaways
- James Breyer has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $10,923,439.
- Recent insider filing activity is available below.
Insider Trading & Ownership of James Breyer
- Location
- Palo Alto, CA
- Summary
- The estimated net worth of James Breyer is at least $10,923,439 dollars as of 03 Apr 2026. James Breyer is the Director of Blackstone Inc. and owns shares of Blackstone Inc. (BX) stock worth about $10.92M.
- Signature
- Victoria Portnoy as Attorney-In-Fact
- All Insider Reports
- All Insider Reports
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What Changed
- Largest disclosed position: Blackstone Inc. ($10,923,439).
- Past-year value change for that position: +$3,991,334.
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 James Breyer
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| BX | Blackstone Inc. | Director | $10,923,439 | +$3,991,334 | +58% | 01 Apr 2026 |
| MSDA | MSD ACQUISITION CORP. / NEW | Director | 29 Mar 2023 |
Insider Transactions Reported by James Breyer:
| 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.