Insider Transactions
Form 4 buys & sells for tracked tickers, same-day tranches collapsed, ranked by a conviction & rarity score (hover a score for how it's built) · buyouts & sponsor stakes flagged Control / M&A and ranked below · last 30 days · showing 13 of 13 events matching · excludes filings pending amendment review
Since: for sales a falling price is shown green (good timing for the seller); sorting uses the raw % change for both.
| Score ▼ | Ticker | Insider | Role | Transaction | Shares | Price | Value | Sincevs SPY | Date | 10b5-1 |
|---|---|---|---|---|---|---|---|---|---|---|
|
M&A
Control / M&A transaction
institutional filer ($154M) — a strategic stake, not an individual. Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
KOD |
BAKER BROS. ADVISORS LP,667, L.P.,Baker Bros. Advisors (GP) LLC,Baker Brothers Life Sciences LP,BAKER FELIX,BAKER JULIAN
Common Stock
|
Director10% owner | P Purchase 76 lines combined | 1,908,029 | $80.77 wtd avg | $154.1M |
Since buy
$91.35 — +13.1% ▲as of Oct 19
vs SPY -0.6%
21 days held
|
2026-09-28 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($135M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase 5 lines combined | 1,697,919 | $79.45 wtd avg | $134.9M |
Since buy
$78.71 — -0.9% ▼as of Oct 20
vs SPY -1.1%
18 days held
|
2026-10-02 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($57M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase 3 lines combined | 705,690 | $80.15 wtd avg | $56.6M |
Since buy
$78.71 — -1.8% ▼as of Oct 20
vs SPY -0.4%
19 days held
|
2026-10-01 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($52M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase | 638,813 | $81.59 wtd avg | $52.1M |
Since buy
$78.71 — -3.5% ▼as of Oct 20
vs SPY -0.4%
20 days held
|
2026-09-30 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($52M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase 2 lines combined | 640,930 | $80.90 wtd avg | $51.9M |
Since buy
$78.71 — -2.7% ▼as of Oct 20
vs SPY -0.9%
26 days held
|
2026-09-24 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($44M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase | 532,993 | $81.65 wtd avg | $43.5M |
Since buy
$78.71 — -3.6% ▼as of Oct 20
vs SPY -0.9%
27 days held
|
2026-09-23 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($39M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
LEN |
BERKSHIRE HATHAWAY INC,BUFFETT WARREN E
Class A Common Stock
|
10% owner | P Purchase 2 lines combined | 485,102 | $81.15 wtd avg | $39.4M |
Since buy
$78.71 — -3.0% ▼as of Oct 20
vs SPY -1.3%
25 days held
|
2026-09-25 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($33M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
GPI |
Conifer Management, L.L.C.
Common Stock
|
10% owner | P Purchase 11 lines combined | 133,472 | $243.58 wtd avg | $32.5M |
Since buy
$239.28 — -1.8% ▼as of Oct 19
vs SPY -0.6%
21 days held
|
2026-09-28 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($19M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
NFE |
King Street Capital Management GP, L.L.C.,KING STREET CAPITAL MANAGEMENT, L.P.,HIGGINS BRIAN J
Series A Mandatorily Convertible Preferred Stock
|
10% owner | P Purchase 4 lines combined | 43,846 | $431.68 wtd avg | $18.9M | — | 2026-09-30 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($19M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
GPI |
Conifer Management, L.L.C.
Common Stock
|
10% owner | P Purchase 6 lines combined | 75,756 | $248.00 wtd avg | $18.8M |
Since buy
$239.28 — -3.5% ▼as of Oct 19
vs SPY -0.9%
25 days held
|
2026-09-24 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($17M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
GPI |
Conifer Management, L.L.C.
Common Stock
|
10% owner | P Purchase 8 lines combined | 71,592 | $242.03 wtd avg | $17.3M |
Since buy
$239.28 — -1.1% ▼as of Oct 19
vs SPY -0.4%
19 days held
|
2026-09-30 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($16M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
GPI |
Conifer Management, L.L.C.
Common Stock
|
10% owner | P Purchase 10 lines combined | 68,648 | $239.48 wtd avg | $16.4M |
Since buy
$239.28 — -0.1% ▼as of Oct 19
vs SPY -0.4%
20 days held
|
2026-09-29 | Unscheduled |
|
M&A
Control / M&A transaction
10% holder with no board/officer role — fund or sponsor ($13M). Shown for information — a buyout is real news — but excluded from the conviction ranking.
|
GPI |
Conifer Management, L.L.C.
Common Stock
|
10% owner | P Purchase 7 lines combined | 50,532 | $252.06 wtd avg | $12.7M |
Since buy
$239.28 — -5.1% ▼as of Oct 19
vs SPY -1.3%
24 days held
|
2026-09-25 | Unscheduled |