Insider trading

Period: 120 months Stock: CRSP Minimum amount: $10M × + 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.

11 decisions over 120 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.

11 decisions over 120 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.

11 decisions over 120 months
The trade

Minimum amount

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

11 decisions over 120 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.
11 decisions over 120 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
11 decisions over 120 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.

11 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 Jul 2025
George Simeon Director · indirect
Bought 3×
$51.50M 989,812 at 52.03
134%
First buy on file
23 Mar 2021
Sold, plan not stated 2×
$12.81M 100,000 at 128.05
99.0%
Sold half or more
19 Feb 2021
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 5×
$25.50M 171,003 at 149.11
50.3%
Sold half or more
7 Dec 2020
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 19×
$26.42M 171,004 at 154.53
33.0%
30 Nov 2020
Novak Rodger President
Sold, plan not stated 2×
$12.50M 100,000 at 125.00
13.4%
14 May 2018
EMSTER KURT VON Director · indirect
Sold, plan not stated 6×
$22.14M 400,000 at 55.36
24.4%
11 May 2018
EMSTER KURT VON Director · indirect
Sold, plan not stated 3×
$13.21M 250,000 at 52.84
13.2%
26 Apr 2018
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 4×
$10.55M 210,610 at 50.11
84.3%
Sold half or more
26 Apr 2018
Woiwode Thomas Director · indirect
Sold, plan not stated 4×
$10.55M 210,610 at 50.11
84.3%
Sold half or more
5 Jan 2018
BAYER AKTIENGESELLSCHAFT 10% owner · indirect
Bought
$12.00M 527,472 at 22.75
10.3%
First buy on file
24 Oct 2016
CELGENE CORP /DE/ 10% owner
Bought
$11.20M 800,150 at 14.00
19.8%
First buy on file
Showing 1–11 of 11.