O'sullivan Michael J. Insider Trading Activity
O'sullivan Michael J. has been net-selling over the last 12 months with 2 purchases and 7 sales across 2 different companies.
SNAP is the most-traded position with 7 trades. The largest single transaction was a sale of SNAP for $591K on Nov 17, 2025.
Performance Scorecard
Forward stock performance after each transaction by O'sullivan Michael J.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +4.2% | -2.7% | 50% | 12 |
| 90 days | — | +7.5% | 70% | 10 |
| 120 days | — | +9.1% | 60% | 10 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 6, 2026 | BRK.B | Buy | 483 | $467.13 | $226K | +380.3% | See Remarks | |
May 6, 2026 | BRK.B | Buy | 53 | $470.22 | $25K | +8.7% | See Remarks | |
Nov 17, 2025 | SNAP | Sell | 70,882 | $8.34 | $591K | −3.7% | General Counsel | |
Oct 31, 2025 | SNAP | Sell | 24,000 | $7.73 | $186K | −4.7% | General Counsel | |
Sep 30, 2025 | SNAP | Sell | 24,000 | $7.86 | $189K | −4.5% | General Counsel | |
Sep 16, 2025 | SNAP | Sell | 14,290 | $7.58 | $108K | −0.7% | General Counsel | |
Aug 29, 2025 | SNAP | Sell | 24,000 | $7.16 | $172K | −4.4% | General Counsel | |
Aug 18, 2025 | SNAP | Sell | 68,705 | $7.18 | $493K | −3.3% | General Counsel | |
Jul 31, 2025 | SNAP | Sell | 24,000 | $9.57 | $230K | −4.7% | General Counsel | |
Jun 30, 2025 | SNAP | Sell | 24,000 | $8.71 | $209K | −4.5% | General Counsel | |
Jun 16, 2025 | SNAP | Sell | 14,297 | $8.04 | $115K | −0.7% | General Counsel | |
May 30, 2025 | SNAP | Sell | 24,000 | $8.15 | $196K | −4.4% | General Counsel |
Top Companies Traded
Other insiders at Snap Inc
6 other tracked filers at SNAP.