Insider trading

Period: 12 months Type of trade: Bought × Minimum amount: $100K × + 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.

5,313 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.

5,313 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.

5,313 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.

5,313 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.
5,313 decisions over 12 months
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
5,313 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.

5,313 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
16 Jan 2026
WATSA V PREM ET AL 10% owner · indirect
Bought
$10.28M 1,837,686 at 5.60
19.4%
16 Jan 2026
Bought
$4.01M 324,295 at 12.37
3.7%
16 Jan 2026
Bought
$655.20K 140,000 at 4.68
11.1%
16 Jan 2026
AULT MILTON C III Director · indirect
Bought
$570.00K 95,000 at 6.00
58.5%
Largest buy in 3 yrs
16 Jan 2026
Saba Capital Management, L.P. 10% owner · indirect
Bought
$288.94K 4,541 at 63.63
0.1%
16 Jan 2026
Bought
$103.77K 100,000 at 1.04
27.2%
First buy on file
15 Jan 2026
Bought on a plan 2×
$16.19M 235,000 at 68.90
0.4%
Bought on a plan
15 Jan 2026
Bought 2×
$11.59M 985,704 at 11.76
12.6%
Largest buy in 3 yrs
15 Jan 2026
Williams Gregg Director · indirect
Bought 2×
$1.98M 1,737,765 at 1.14
7.0%
15 Jan 2026
Voss Capital, LP 10% owner · indirect
Bought
$1.95M 50,068 at 38.93
1.4%
15 Jan 2026
Porter Stuart D Director
Bought
$500.00K 153,846 at 3.25
24.7%
+25% of stake
15 Jan 2026
Saba Capital Management, L.P. 10% owner · indirect
Bought
$294.83K 4,654 at 63.35
0.1%
15 Jan 2026
EILERS PATRICK C Executive Chairman
Bought
$250.00K 76,923 at 3.25
4.3%
First buy on file
15 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$236.54K 11,893 at 19.89
1.2%
15 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$236.54K 11,893 at 19.89
1.2%
15 Jan 2026
Clough Charles JR Person Affiliated w/ Inv. Adv.
Bought
$210.35K 35,000 at 6.01
9.7%
15 Jan 2026
ASHER DANIEL 10% owner · indirect
Bought
$159.43K 28,200 at 5.65
1.6%
15 Jan 2026
Schall Thomas J. Director
Bought
$101.04K 21,645 at 4.67
40.9%
Largest buy in 3 yrs
14 Jan 2026
Bought on a plan 2×
$15.91M 230,000 at 69.19
0.4%
Bought on a plan
14 Jan 2026
Sprott Eric 10% owner · indirect
Bought
$6.64M 200,000 at 33.21
0.6%
14 Jan 2026
Liu Teyin M Director
Bought 2×
$3.91M 11,600 at 337.22
81.1%
Largest buy in 3 yrs
14 Jan 2026
Voss Capital, LP 10% owner · indirect
Bought
$1.60M 41,034 at 39.10
1.1%
14 Jan 2026
Bought
$640.80K 240,000 at 2.67
opened
First buy on file
14 Jan 2026
Saba Capital Management, L.P. 10% owner · indirect
Bought
$319.10K 5,000 at 63.82
0.1%
14 Jan 2026
Siokas Grigorios Chief Executive Officer
Bought
$220.00K 493,495 at 0.45
6.8%
14 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$110.40K 5,523 at 19.99
0.6%
14 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$110.40K 5,523 at 19.99
0.6%
13 Jan 2026
Bought on a plan 2×
$22.11M 325,000 at 68.03
0.6%
Bought on a plan
13 Jan 2026
Liu Teyin M Director
Bought
$3.91M 11,600 at 337.07
428%
First buy on file
13 Jan 2026
Saba Capital Management, L.P. 10% owner · indirect
Bought
$978.25K 15,162 at 64.52
0.3%
13 Jan 2026
Cole Matthew Ryan Chief Executive Officer
Bought
$459.35K 500,000 at 0.92
190%
Largest buy in 3 yrs
13 Jan 2026
ASHER DANIEL 10% owner · indirect
Bought
$318.51K 57,809 at 5.51
3.3%
Largest buy in 3 yrs
13 Jan 2026
COLUMN GROUP III GP, LP 10% owner · indirect
Bought 2×
$246.96K 12,470 at 19.80
1.3%
13 Jan 2026
Kutzkey Tim Director · indirect
Bought 2×
$246.96K 12,470 at 19.80
1.3%
13 Jan 2026
MATLIN DAVID J Director
Bought
$216.66K 33,333 at 6.50
7.5%
12 Jan 2026
EcoR1 Capital, LLC Director · indirect
Bought 2×
$40.00M 2,222,222 at 18.00
105%
First buy on file
12 Jan 2026
GADICKE ANSBERT 10% owner · indirect
Bought
$20.03M 1,112,777 at 18.00
12.2%
First buy on file
12 Jan 2026
MPM BIOVENTURES 2018, L.P. 10% owner · indirect
Bought
$20.03M 1,112,777 at 18.00
12.2%
First buy on file
12 Jan 2026
Bought on a plan
$17.60M 256,041 at 68.73
0.5%
Bought on a plan
12 Jan 2026
Kim Helen Susan Director · indirect
Bought 2×
$15.03M 835,000 at 18.00
17.3%
First buy on file
12 Jan 2026
Vida Ventures II, LLC 10% owner · indirect
Bought 2×
$15.03M 835,000 at 18.00
17.3%
First buy on file
12 Jan 2026
Foley Todd Director · indirect
Bought
$4.19M 232,870 at 18.00
5.8%
First buy on file
12 Jan 2026
Bought
$3.89M 70,023 at 55.50
1.3%
First buy on file
12 Jan 2026
Zhou Hongyu Director
Bought
$1.05M 744,496 at 1.41
86.9%
Largest buy in 3 yrs
12 Jan 2026
Bought
$779.40K 5,000 at 155.88
opened
First buy in 3+ yrs
12 Jan 2026
Saba Capital Management, L.P. 10% owner · indirect
Bought
$610.32K 9,508 at 64.19
0.2%
12 Jan 2026
Srivastava Sajal President and CIO · indirect
Bought on a plan
$158.51K 23,799 at 6.66
1.2%
Bought on a plan
12 Jan 2026
Labe James Chief Executive Officer · indirect
Bought on a plan
$158.51K 23,799 at 6.66
1.2%
Bought on a plan
12 Jan 2026
Chamoun George Chief Executive Officer
Bought on a plan
$125.86K 14,286 at 8.81
0.6%
Bought on a plan
11 Jan 2026
Zhou Hongyu Director
Bought
$449.47K 365,426 at 1.23
74.3%
Largest buy in 3 yrs
Showing 3,901–3,950 of 5,313. ← Newer Page 79 of 107 Older →