O'SULLIVAN MICHAEL J.

PrivateCIK: 1713777
Location

OMAHA, NE

BUFFETT WARREN E

4
BERKSHIRE HATHAWAY INC
May 26, 2026·May 26, 2026
2 txn

BUFFETT WARREN E

4
BERKSHIRE HATHAWAY INC
May 20, 2026·May 20, 2026
4 txn

BERKSHIRE HATHAWAY INC

13F-HR

Holdings

May 15, 2026·May 15, 2026

O'SULLIVAN MICHAEL J.

4
BERKSHIRE HATHAWAY INC
May 6, 2026·May 6, 2026
2 txn

BERKSHIRE HATHAWAY INC

4
DAVITA INC.
May 5, 2026·May 5, 2026
1 txn

O'SULLIVAN MICHAEL J.

3
BERKSHIRE HATHAWAY INC
May 5, 2026·May 5, 2026
1 txn

SPIEGEL EVAN

144
SNAP INC
Apr 8, 2026·Apr 8, 2026

JAIN AJIT

4
BERKSHIRE HATHAWAY INC
Mar 27, 2026·Mar 27, 2026
6 txn

BUFFETT WARREN E

4
BERKSHIRE HATHAWAY INC
Mar 19, 2026·Mar 19, 2026
2 txn

BERKSHIRE HATHAWAY INC

13F-HR

Holdings

Feb 17, 2026·Feb 17, 2026

BERKSHIRE HATHAWAY INC

4
LIBERTY LIVE HOLDINGS, INC.
Feb 17, 2026·Feb 17, 2026
10 txn

BERKSHIRE HATHAWAY INC

3
LIBERTY LIVE HOLDINGS, INC.
Feb 17, 2026·Feb 17, 2026
2 txn

BERKSHIRE HATHAWAY INC

4
DAVITA INC.
Feb 2, 2026·Feb 2, 2026
1 txn

O'SULLIVAN MICHAEL J.

144
SNAP INC
Jan 30, 2026·Jan 30, 2026
-4

SPIEGEL EVAN

4
SNAP INC
Jan 7, 2026·Jan 7, 2026
3 txn

SPIEGEL EVAN

144
SNAP INC
Jan 5, 2026·Jan 5, 2026
-4

SPIEGEL EVAN

4
SNAP INC
Jan 2, 2026·Jan 2, 2026
3 txn

O'SULLIVAN MICHAEL J.

144
SNAP INC
Dec 31, 2025·Dec 31, 2025
-4

SPIEGEL EVAN

144
SNAP INC
Dec 30, 2025·Dec 30, 2025
-3

O'SULLIVAN MICHAEL J.

144
SNAP INC
Dec 16, 2025·Dec 16, 2025
-5

SPIEGEL EVAN

4
SNAP INC
Dec 9, 2025·Dec 9, 2025
3 txn

SPIEGEL EVAN

144
SNAP INC
Dec 8, 2025·Dec 8, 2025
-2

O'SULLIVAN MICHAEL J.

144
SNAP INC
Nov 28, 2025·Nov 28, 2025
-4

O'SULLIVAN MICHAEL J.

4
SNAP INC
Nov 19, 2025·Nov 19, 2025
3 txn

O'SULLIVAN MICHAEL J.

144
SNAP INC
Nov 17, 2025·Nov 17, 2025
-6
Page 1 of 22 · 544 total
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