Insider trading

Period: 120 months Stock: CRSP Share of holding: 50% or more × + Add filter Clear all
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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.

34 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.

34 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.

34 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.

34 decisions over 120 months
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.
34 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
34 decisions over 120 months Remove this filter
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.

34 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
22 Jan 2026
Prasad Raju Chief Financial Officer
Sold on a plan
$2.10M 34,972 at 60.19
83.8%
Sold half or more
6 Jan 2026
Prasad Raju Chief Financial Officer
Sold on a plan 3×
$1.79M 29,700 at 60.16
81.4%
Sold half or more
22 Dec 2025
Prasad Raju Chief Financial Officer
Sold on a plan 3×
$559.55K 10,000 at 55.95
59.6%
Sold half or more
6 Aug 2025
Treco Douglas A Director
Bought
$1.14M 20,000 at 57.03
×10
First buy on file
16 Jul 2025
George Simeon Director · indirect
Bought 3×
$51.50M 989,812 at 52.03
134%
First buy on file
6 Aug 2021
TOMSICEK MICHAEL JOHN Chief Financial Officer
Sold, plan not stated 2×
$3.46M 25,000 at 138.52
93.0%
Sold half or more
29 Jun 2021
Sold, plan not stated 8×
$7.11M 47,536 at 149.49
100%
Sold half or more
28 Jun 2021
Sold, plan not stated 7×
$3.11M 20,375 at 152.48
100%
Sold half or more
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
19 Jan 2021
KASINGER JAMES R. General Counsel and Secretary
Sold, plan not stated 5×
$5.64M 27,500 at 204.94
55.1%
Sold half or more
15 Jan 2021
Sold, plan not stated 13×
$5.38M 25,000 at 215.20
55.6%
Sold half or more
16 Dec 2020
Sold, plan not stated 5×
$1.14M 7,648 at 148.95
100%
Sold half or more
1 Sep 2020
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 4×
$5.55M 60,000 at 92.51
100%
Sold half or more
1 Sep 2020
TOMSICEK MICHAEL JOHN Chief Financial Officer
Sold, plan not stated 3×
$1.11M 12,000 at 92.26
96.7%
Sold half or more
3 Aug 2020
TOMSICEK MICHAEL JOHN Chief Financial Officer
Sold, plan not stated 2×
$1.04M 12,000 at 86.74
96.7%
Sold half or more
24 Jun 2020
Sold, plan not stated 7×
$4.94M 65,088 at 75.93
76.5%
Sold half or more
11 May 2020
Sold, plan not stated 2×
$1.51M 25,000 at 60.40
55.6%
Sold half or more
19 Nov 2019
Novak Rodger President
Sold, plan not stated
$2.35M 33,618 at 70.00
100%
Sold half or more
19 Nov 2019
Sold, plan not stated
$926.61K 13,745 at 67.41
100%
Sold half or more
19 Nov 2019
CAGNONI PABLO J Director
Sold, plan not stated
$465.00K 7,500 at 62.00
100%
Sold half or more
12 Nov 2019
CAGNONI PABLO J Director
Sold, plan not stated
$412.50K 7,500 at 55.00
100%
Sold half or more
30 Oct 2019
Sold, plan not stated
$1.09M 21,000 at 51.89
60.4%
Sold half or more
30 Oct 2019
CAGNONI PABLO J Director
Sold, plan not stated
$390.00K 7,500 at 52.00
100%
Sold half or more
5 Jul 2018
CAGNONI PABLO J Director
Sold, plan not stated
$104.41K 1,684 at 62.00
100%
Sold half or more
3 Jul 2018
CAGNONI PABLO J Director
Sold, plan not stated
$360.59K 5,816 at 62.00
100%
Sold half or more
7 May 2018
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 8×
$6.03M 119,709 at 50.38
77.4%
Sold half or more
7 May 2018
Woiwode Thomas Director · indirect
Sold, plan not stated 8×
$6.03M 119,709 at 50.38
77.4%
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
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
23 Apr 2018
Bolzon Bradley J PhD Director · indirect
Sold, plan not stated 4×
$5.17M 101,994 at 50.68
69.3%
Sold half or more
23 Apr 2018
Woiwode Thomas Director · indirect
Sold, plan not stated 4×
$5.17M 101,994 at 50.68
69.3%
Sold half or more
23 Apr 2018
Versant Venture Capital IV, L.P. 10% owner · indirect
Sold, plan not stated 4×
$5.17M 101,994 at 50.68
69.3%
Sold half or more
16 Jan 2018
Dylan-Hyde Tyler Chief Legal Officer
Sold, plan not stated 3×
$1.85M 66,000 at 28.03
72.4%
Sold half or more
Showing 1–34 of 34.