Insider trading

Period: 120 months Stock: COLL Minimum amount: $1M × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

22 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.

22 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.

22 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.

22 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.
22 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
22 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.

22 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
3 Mar 2026
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan 2×
$2.02M 49,976 at 40.41
41.0%
Planned (10b5-1)
12 Nov 2025
Fallon John A. Director
Sold at will
$1.65M 34,853 at 47.21
35.0%
Not planned
6 Nov 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan 2×
$1.22M 30,000 at 40.53
19.1%
Planned (10b5-1)
4 Mar 2025
Kuhlmann Shirley R. EVP and General Counsel
Sold at will
$1.12M 40,000 at 28.08
20.6%
Not planned
24 May 2024
Dreyer Scott EVP & Chief Commercial Officer
Sold at will
$1.93M 56,807 at 33.98
34.9%
Not planned
23 May 2024
Dreyer Scott EVP & Chief Commercial Officer
Sold at will
$1.73M 51,209 at 33.82
26.9%
Not planned
21 Dec 2022
Sold, plan not stated
$1.08M 46,600 at 23.11
62.4%
Sold half or more
13 Dec 2022
Sold, plan not stated
$3.58M 161,687 at 22.16
85.2%
Sold half or more
2 Dec 2022
Ciaffoni Joseph President and CEO
Sold, plan not stated
$1.26M 54,400 at 23.07
16.8%
1 Dec 2022
Ciaffoni Joseph President and CEO
Sold, plan not stated
$1.72M 76,653 at 22.47
19.2%
1 Mar 2022
Ciaffoni Joseph President and CEO
Sold, plan not stated 2×
$1.41M 76,094 at 18.47
19.0%
15 Mar 2021
Sold, plan not stated 2×
$1.27M 50,075 at 25.30
92.5%
Sold half or more
1 Mar 2021
Ciaffoni Joseph President and CEO
Sold, plan not stated 2×
$1.47M 64,768 at 22.67
18.9%
1 Jun 2020
Ciaffoni Joseph President and CEO
Sold, plan not stated 2×
$1.52M 70,676 at 21.53
26.2%
21 Jan 2020
Sold, plan not stated 2×
$6.48M 295,287 at 21.93
73.4%
Sold half or more
7 Nov 2019
Ciaffoni Joseph President and CEO
Sold, plan not stated 2×
$1.22M 64,821 at 18.77
26.8%
12 Jun 2018
Heffernan Michael Thomas Chairman, President and CEO
Sold, plan not stated
$1.34M 53,057 at 25.26
12.0%
11 Jun 2018
Heffernan Michael Thomas Chairman, President and CEO
Sold, plan not stated
$2.45M 96,943 at 25.28
18.0%
31 May 2018
Ciaffoni Joseph Chief Operating Officer
Sold, plan not stated 2×
$1.47M 64,821 at 22.61
37.2%
19 Apr 2018
Heffernan Michael Thomas Chairman, President and CEO
Sold, plan not stated 2×
$1.15M 44,400 at 26.00
7.5%
8 Dec 2017
Hirsch David Director · indirect
Sold, plan not stated
$17.00M 980,350 at 17.34
30.1%
8 Dec 2017
Longitude Capital Partners, LLC 10% owner · indirect
Sold, plan not stated
$17.00M 980,350 at 17.34
30.1%
Showing 1–22 of 22.