Summary
Updated Aug 30, 2026
James Breyer files SEC Form 4 reports at Blackstone Inc. (BX). 4 SEC Form 4 filings on record going back to 2025, most recently on 3 April 2026. Most recent open-market trade: bought $1.47M of BX on 5 November 2025. Lifetime open-market purchases: $3.99M. Historical track record: 3/5 stars across 3 tracked purchases.
Recent Transactions
5Every recent SEC Form 4 transaction James Breyer has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★☆☆ (3/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 67% |
| 90-day win rate | 0% |
| Avg 5-day return | -0.33% |
| Avg 30-day return | +3.43% |
| Avg 90-day return | -0.85% |
| Best 30-day return | +5.98% |
Trading Pattern
InsiderAlpha's records for James Breyer go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $1.33M (3 buys totaling $3.99M). The largest single buy on record is $1.99M of BX in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies James Breyer files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Joseph Baratta - $19.85M of BX open-market activity in the last 12 months
- John G. Finley - $10.31M of BX open-market activity in the last 12 months
- Vikrant Sawhney - $7.84M of BX open-market activity in the last 12 months
- David Payne - $1.38M of BX open-market activity in the last 12 months
- Ruth Porat - $244K of BX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is James Breyer?
James Breyer is a corporate insider of Blackstone Inc. (BX). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did James Breyer last file a Form 4?
The most recent primary Form 4 on record is dated 3 April 2026, one of 4 filings going back to 2025.
Has James Breyer been buying or selling stock?
Recorded transactions: 3 open-market purchases ($3.99M) and 0 open-market sales across all tracked filings.
How accurate is James Breyer's historical track record?
Across 3 tracked purchases, James Breyer averaged +3.4% avg 30-day return with a 67% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
Where can I see all of James Breyer's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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