Insider trading

Period: 120 months Stock: COLL Plan: Scheduled (10b5-1) × + 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.

33 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.

33 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.

33 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.

33 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.
33 decisions over 120 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
33 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.

33 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
18 Mar 2026
Dieter David EVP & General Counsel
Sold on a plan
$488.10K 13,976 at 34.92
15.4%
Planned (10b5-1)
9 Mar 2026
Dieter David EVP & General Counsel
Sold on a plan
$228.11K 6,224 at 36.65
6.4%
Planned (10b5-1)
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)
8 Dec 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan 2×
$847.86K 17,600 at 48.17
14.5%
Planned (10b5-1)
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)
18 Aug 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$626.17K 16,389 at 38.21
13.7%
Planned (10b5-1)
13 Aug 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$184.88K 4,861 at 38.03
4.5%
Planned (10b5-1)
21 Mar 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$566.98K 18,881 at 30.03
15.4%
Planned (10b5-1)
21 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$192.07K 6,396 at 30.03
3.9%
Planned (10b5-1)
20 Mar 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$57.81K 1,927 at 30.00
1.5%
Planned (10b5-1)
20 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$36.18K 1,206 at 30.00
0.7%
Planned (10b5-1)
14 Mar 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$67.66K 2,255 at 30.00
1.8%
Planned (10b5-1)
14 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$29.31K 977 at 30.00
0.6%
Planned (10b5-1)
11 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$313.41K 10,445 at 30.01
5.9%
Planned (10b5-1)
7 Mar 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$70.45K 2,348 at 30.00
1.6%
Planned (10b5-1)
7 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$45.12K 1,504 at 30.00
0.8%
Planned (10b5-1)
6 Mar 2025
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan 2×
$560.53K 18,682 at 30.00
12.9%
Planned (10b5-1)
6 Mar 2025
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$58.47K 1,949 at 30.00
1.1%
Planned (10b5-1)
10 Jan 2025
Kuhlmann Shirley R. EVP and General Counsel
Sold on a plan 2×
$908.63K 27,500 at 33.04
18.7%
Planned (10b5-1)
3 Jun 2024
Kuhlmann Shirley R. EVP and General Counsel
Sold on a plan 2×
$814.18K 25,000 at 32.57
15.2%
Planned (10b5-1)
28 May 2024
Tupper Colleen EVP & Chief Financial Officer
Sold on a plan
$674.37K 19,710 at 34.21
13.1%
Planned (10b5-1)
26 Feb 2024
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan 2×
$364.27K 10,000 at 36.43
6.7%
Planned (10b5-1)
16 Jan 2024
Dreyer Scott EVP & Chief Commercial Officer
Sold on a plan
$760.52K 23,560 at 32.28
17.5%
Planned (10b5-1)
21 Dec 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$132.38K 4,357 at 30.38
1.6%
Planned (10b5-1)
20 Dec 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$804.21K 26,454 at 30.40
8.8%
Planned (10b5-1)
19 Dec 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$435.94K 14,516 at 30.03
5.0%
Planned (10b5-1)
18 Dec 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$834.94K 27,798 at 30.04
9.2%
Planned (10b5-1)
27 Nov 2023
Kuhlmann Shirley R. EVP and General Counsel
Sold on a plan
$660.01K 25,600 at 25.78
17.6%
Planned (10b5-1)
26 Jun 2023
Kuhlmann Shirley R. EVP and General Counsel
Sold on a plan 2×
$390.63K 17,984 at 21.72
13.1%
Planned (10b5-1)
2 Jun 2023
Ciaffoni Joseph President and CEO
Sold on a plan 2×
$675.42K 31,272 at 21.60
10.2%
Planned (10b5-1)
1 Jun 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$690.76K 31,272 at 22.09
9.3%
Planned (10b5-1)
31 May 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$683.80K 31,272 at 21.87
8.5%
Planned (10b5-1)
30 May 2023
Ciaffoni Joseph President and CEO
Sold on a plan
$684.91K 31,271 at 21.90
7.8%
Planned (10b5-1)
Showing 1–33 of 33.