O'Sullivan Michael J. Insider Trading Activity

Average Profitability
<0.0001%
Insider Buys Quantity
0
Insider Buys Sum
$0
Insider Sells Quantity
95
Insider Sells Sum
$57.83M

Insider Activity of O'Sullivan Michael J.

According to the SEC Form 4 filings, O'Sullivan Michael J., being in a position of

  1. See Remarks at Berkshire Hathaway Inc.,
    оver the last 12 months, has bought 488 shares for $250,072, and sold 0 shares,
    over all time since 2026-08-12, has bought 488 shares for $250,072, and sold 0 shares.

Biography of O'Sullivan Michael J.

No biography is available at this moment.

Statistics of Insider Transactions Last Year

Amount of Insider Buys and Sells by Stocks

Buys
 $250,072150
Sells
 $591,021150

Comparison of Insiders on Amount of Buys and Sells

2026-08-12PurchaseBerkshire Hathaway Inc.
BRK-A
See Remarks
488
<0.0001%
$512.44$250,072-0.54%
2025-11-17SaleSnap Inc.
SNAP
General Counsel
70,882
0.0043%
$8.34$591,021-31.66%
2025-10-31SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$7.73$185,623-27.95%
2025-09-30SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$7.86$188,544-26.72%
2025-09-16SaleSnap Inc.
SNAP
General Counsel
14,290
0.0008%
$7.58$108,281-26.1%
2025-08-29SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$7.16$171,857-17.44%
2025-08-18SaleSnap Inc.
SNAP
General Counsel
68,705
0.004%
$7.18$493,082-17.85%
2025-07-31SaleSnap Inc.
SNAP
General Counsel
24,000
0.0015%
$9.57$229,591-26.51%
2025-06-30SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$8.71$208,978-16%
2025-06-16SaleSnap Inc.
SNAP
General Counsel
14,297
0.0008%
$8.04$114,951-10.88%
2025-05-30SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$8.15$195,540-7.7%
2025-05-16SaleSnap Inc.
SNAP
General Counsel
68,845
0.004%
$8.59$591,695-12.4%
2025-04-30SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$7.74$185,875-2.51%
2025-03-31SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$8.60$206,386-9.53%
2025-03-17SaleSnap Inc.
SNAP
General Counsel
14,183
0.0008%
$8.83$125,216-11.9%
2025-02-28SaleSnap Inc.
SNAP
General Counsel
24,000
0.0014%
$10.16$243,828-21.71%
2025-02-18SaleSnap Inc.
SNAP
General Counsel
69,119
0.0041%
$10.84$749,450-26.36%
2025-01-31SaleSnap Inc.
SNAP
General Counsel
18,000
0.0011%
$11.49$206,903-27.24%
2024-12-31SaleSnap Inc.
SNAP
General Counsel
18,000
0.0011%
$10.84$195,104-22.66%
2024-12-16SaleSnap Inc.
SNAP
General Counsel
56,961
0.0034%
$11.44$651,816-25.66%
Total: 107
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