Insider · CIK 0001713777
Michael J. O'Sullivan
Files at: BRK.A, SNAP. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 PForm 4 → | Aug 13, 5:06 pm EDT | BERKSHIRE HATHAWAY INCBRK.B | 488 | $512.44 | $250,072 | 1,151 | +73.6% | |
| Feb 28, 2019 SForm 4 → | Mar 1, 7:05 pm EST | Snap IncSNAP | 18,500 | $9.85 | $182,225 | 1,033,578 | −1.76% | plan? |
| Feb 19, 2019 SForm 4 → | Feb 21, 7:37 pm EST | Snap IncSNAP | 18,484 | $9.30 | $171,983 | 1,052,078 | −1.73% | plan? |
| Dec 13, 2018 AForm 4 → | Dec 14, 8:34 pm EST | Snap IncSNAP | 72,767 | — | — | 1,070,562 | — | plan? |
| Nov 16, 2018 SForm 4 → | Nov 20, 6:34 pm EST | Snap IncSNAP | 27,868 | $6.46 | $180,125 | 997,795 | −2.72% | plan? |
| Aug 16, 2018 SForm 4 → | Aug 20, 6:46 pm EDT | Snap IncSNAP | 10,648 | $12.43 | $132,325 | 1,025,663 | −1.03% | plan? |
| May 16, 2018 SForm 4 → | May 18, 6:09 pm EDT | Snap IncSNAP | 9,810 | $10.63 | $104,280 | 1,036,311 | −0.94% | plan? |
| Feb 16, 2018 SForm 4 → | Feb 20, 9:31 pm EST | Snap IncSNAP | 9,248 | $20.25 | $187,286 | 1,046,121 | −0.88% | plan? |
| Nov 16, 2017 SForm 4 → | Nov 20, 9:30 pm EST | Snap IncSNAP | 10,016 | $12.54 | $125,585 | 1,055,369 | −0.94% | plan? |
| Sep 8, 2017 AForm 4 → | Sep 8, 9:33 pm EDT | Snap IncSNAP | 1,065,385 | — | — | 1,065,385 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.