Insider trading

Period: 12 months Type of trade: Bought × Minimum amount: $10M × Plan: Discretionary × + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

301 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

301 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

301 decisions over 12 months Remove this filter
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

301 decisions over 12 months Remove this filter
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
301 decisions over 12 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
301 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

301 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
7 Oct 2026
Yin Chung-Yao Director · indirect
Bought 2×
$35.11M 14,158,991 at 2.48
232%
First buy on file
2 Oct 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 5×
$134.89M 1,697,919 at 79.45
6.3%
Largest buy in 3 yrs
2 Oct 2026
Cohen Ryan President, CEO and Chairman
Bought
$17.08M 700,000 at 24.41
1.7%
Cluster · 3 buyers
1 Oct 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 3×
$56.56M 705,690 at 80.15
2.7%
30 Sep 2026
AULT MILTON C III Director · indirect
Bought
$92.41M 18,000 at 5,134.00
1.6%
Largest buy in 3 yrs
30 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought
$52.12M 638,813 at 81.59
2.5%
30 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 8×
$17.33M 71,592 at 242.03
3.9%
29 Sep 2026
Wang Ching-Dong Chief Executive Officer · indirect
Bought
$10.33T 4,545,306 at 2,272,653.00
1.4%
First buy on file
29 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 10×
$16.44M 68,648 at 239.48
3.9%
29 Sep 2026
Cohen Ryan President, CEO and Chairman
Bought 2×
$10.56M 450,000 at 23.48
1.1%
Cluster · 3 buyers
28 Sep 2026
BAKER BROS. ADVISORS LP Director · indirect
Bought 76×
$154.12M 1,908,029 at 80.77
10.5%
Largest buy in 3 yrs
28 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 11×
$32.51M 133,472 at 243.58
8.1%
Largest buy in 3 yrs
25 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 2×
$39.36M 485,102 at 81.15
1.9%
25 Sep 2026
Huang Jack Jiajia Chief Executive Officer · indirect
Bought
$14.12M 1,227,600 at 11.50
3.3%
Largest buy in 3 yrs
25 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 7×
$12.74M 50,532 at 252.06
3.2%
24 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 2×
$51.85M 640,930 at 80.90
2.6%
24 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 6×
$18.79M 75,756 at 248.00
5.0%
23 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought
$43.52M 532,993 at 81.65
2.2%
23 Sep 2026
Huang Jack Jiajia Chief Executive Officer · indirect
Bought
$10.32M 897,300 at 11.50
2.5%
Largest buy in 3 yrs
21 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 2×
$50.10M 644,084 at 77.79
2.8%
21 Sep 2026
Tan Anthony Ping Yeow Chief Executive Officer
Bought
$29.88M 10,350,000 at 2.89
×24
First buy on file
21 Sep 2026
Cohen Ryan President, CEO and Chairman
Bought
$26.39M 1,150,680 at 22.94
2.9%
Cluster · 3 buyers
18 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 4×
$103.04M 1,346,675 at 76.52
6.2%
Largest buy in 3 yrs
18 Sep 2026
Monroe James III Director · indirect
Bought
$29.84M 361,600 at 82.52
775%
Largest buy in 3 yrs
17 Sep 2026
BERKSHIRE HATHAWAY INC 10% owner · indirect
Bought 2×
$53.55M 677,749 at 79.02
3.2%
First buy on file
15 Sep 2026
MURDOCH LACHLAN K Executive Chair, CEO · indirect
Bought
$10.27M 149,934 at 68.53
12.0%
14 Sep 2026
HRT FINANCIAL LP 10% owner
Bought 6×
$15.99M 101,212 at 158.02
opened
Largest buy in 3 yrs
14 Sep 2026
Bought
$11.29M 525,000 at 21.50
24.1%
Cluster · 5 buyers
11 Sep 2026
Bought 4×
$72.40M 324,810 at 222.89
0.3%
11 Sep 2026
Wilks Matthew Director · indirect
Bought
$34.32M 1,319,493 at 26.01
836%
Largest buy in 3 yrs
10 Sep 2026
Bought 4×
$56.91M 256,000 at 222.30
0.2%
10 Sep 2026
Cohen Ryan President, CEO and Chairman
Bought
$20.38M 1,000,000 at 20.38
2.6%
Cluster · 3 buyers
10 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 6×
$10.29M 36,647 at 280.86
2.6%
10 Sep 2026
KHOSROWSHAHI DARA Chief Executive Officer
Bought
$10.01M 141,000 at 70.96
11.5%
First buy in 3+ yrs
9 Sep 2026
Bought 3×
$68.89M 311,304 at 221.31
0.3%
9 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 7×
$13.38M 47,353 at 282.48
3.5%
8 Sep 2026
Bought 3×
$90.70M 409,500 at 221.49
0.4%
Largest buy in 3 yrs
8 Sep 2026
GOLDENTREE ASSET MANAGEMENT LP 10% owner · indirect
Bought
$26.00M 1,600,000 at 16.25
17.0%
Largest buy in 3 yrs
4 Sep 2026
Bought 3×
$81.46M 365,039 at 223.16
0.3%
4 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 19×
$17.16M 57,159 at 300.15
4.4%
3 Sep 2026
Bought 4×
$83.24M 370,264 at 224.81
0.3%
Largest buy in 3 yrs
3 Sep 2026
MOROUN MATTHEW T Director · indirect
Bought
$31.23M 3,268,000 at 9.56
26.3%
+26% of stake
3 Sep 2026
Conifer Management, L.L.C. 10% owner · indirect
Bought 8×
$23.49M 83,121 at 282.63
6.8%
Largest buy in 3 yrs
3 Sep 2026
GOLDENTREE ASSET MANAGEMENT LP 10% owner · indirect
Bought
$11.84M 720,000 at 16.45
8.3%
Largest buy in 3 yrs
2 Sep 2026
Bought 4×
$73.50M 329,200 at 223.27
0.3%
1 Sep 2026
Bought 4×
$45.60M 204,800 at 222.68
0.2%
1 Sep 2026
Alvarez Rubens Aguiar Director · indirect
Bought 6×
$32.04M 1,845,000 at 17.37
100%
Cluster · 22 buyers
31 Aug 2026
Bought 4×
$66.80M 301,000 at 221.94
0.3%
31 Aug 2026
Alvarez Denise Aguiar Director · indirect
Bought 12×
$33.58M 1,950,000 at 17.22
30.5%
Cluster · 22 buyers
28 Aug 2026
Bought 3×
$55.57M 251,400 at 221.03
0.2%
Showing 1–50 of 301. Page 1 of 7 Older →