Insider trading

Period: 120 months Stock: CSTL + 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.

736 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.

736 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.

736 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.

736 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.
736 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
736 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.

736 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Nov 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 2×
$203.78K 6,695 at 30.44
10.6%
Planned (10b5-1)
31 Oct 2025
Oelschlager Kristen M Chief Operating Officer
Sold on a plan
$317.46K 12,678 at 25.04
31.5%
Planned (10b5-1)
20 Oct 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$30.05K 1,339 at 22.44
2.1%
Planned (10b5-1)
2 Oct 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$30.23K 1,339 at 22.58
2.0%
Planned (10b5-1)
17 Sep 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$29.42K 1,339 at 21.97
2.0%
Planned (10b5-1)
2 Sep 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$32.04K 1,339 at 23.93
2.0%
Planned (10b5-1)
27 Aug 2025
Oelschlager Kristen M Chief Operating Officer
Sold on a plan 2×
$669.71K 30,684 at 21.83
17.9%
Planned (10b5-1)
15 Aug 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$26.83K 1,339 at 20.04
1.9%
Planned (10b5-1)
13 Aug 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$839.04K 43,019 at 19.50
38.2%
Planned (10b5-1)
27 Jun 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$357.93K 17,632 at 20.30
83.0%
Sold half or more
27 Jun 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$100.36K 4,944 at 20.30
6.6%
Planned (10b5-1)
21 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$94.85K 4,408 at 21.52
50.8%
Sold half or more
21 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$26.60K 1,236 at 21.52
1.6%
Planned (10b5-1)
9 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$73.74K 3,647 at 20.22
45.1%
Planned (10b5-1)
9 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$20.68K 1,023 at 20.22
1.3%
Planned (10b5-1)
8 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$15.24K 761 at 20.03
14.3%
Planned (10b5-1)
8 Apr 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$4.27K 213 at 20.03
0.3%
Planned (10b5-1)
26 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$89.48K 4,408 at 20.30
48.9%
Planned (10b5-1)
26 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$25.09K 1,236 at 20.30
1.6%
Planned (10b5-1)
10 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$41.57K 2,130 at 19.52
2.6%
Planned (10b5-1)
7 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 2×
$455.43K 22,639 at 20.12
22.0%
Planned (10b5-1)
7 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 12×
$88.67K 4,408 at 20.12
48.0%
Planned (10b5-1)
4 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$92.61K 4,440 at 20.86
47.4%
Planned (10b5-1)
4 Mar 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$26.01K 1,247 at 20.86
1.2%
Planned (10b5-1)
20 Feb 2025
Stokes Frank Chief Financial Officer
Sold on a plan
$214.83K 8,046 at 26.70
18.6%
Planned (10b5-1)
5 Feb 2025
BRADBURY DANIEL Director · indirect
Sold on a plan 3×
$221.64K 7,867 at 28.17
100%
Sold half or more
13 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 18×
$44.26K 1,579 at 28.03
23.6%
Planned (10b5-1)
13 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 3×
$27.64K 986 at 28.03
1.2%
Planned (10b5-1)
7 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$11.69K 388 at 30.14
6.9%
Planned (10b5-1)
7 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$7.32K 243 at 30.14
0.3%
Planned (10b5-1)
6 Jan 2025
BRADBURY DANIEL Director · indirect
Sold on a plan 9×
$229.23K 7,867 at 29.14
84.7%
Sold half or more
6 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 18×
$128.64K 4,343 at 29.62
45.1%
Planned (10b5-1)
6 Jan 2025
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 3×
$80.41K 2,715 at 29.62
3.2%
Planned (10b5-1)
6 Jan 2025
Juvenal Tobin W Chief Commercial Officer
Sold on a plan
$66.90K 2,230 at 30.00
3.1%
Planned (10b5-1)
17 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 2×
$265.36K 9,364 at 28.34
9.9%
Planned (10b5-1)
16 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$318.86K 11,059 at 28.83
10.5%
Planned (10b5-1)
13 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 2×
$386.21K 13,485 at 28.64
11.4%
Planned (10b5-1)
13 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 12×
$45.22K 1,579 at 28.64
21.7%
Planned (10b5-1)
5 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$98.92K 3,155 at 31.35
35.0%
Planned (10b5-1)
5 Dec 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$61.83K 1,972 at 31.35
2.2%
Planned (10b5-1)
3 Dec 2024
BRADBURY DANIEL Director · indirect
Sold on a plan 6×
$243.69K 7,867 at 30.98
73.4%
Sold half or more
15 Nov 2024
Stokes Frank Chief Financial Officer
Sold on a plan 2×
$207.22K 6,923 at 29.93
18.3%
Planned (10b5-1)
12 Nov 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$107.74K 3,155 at 34.15
33.9%
Planned (10b5-1)
12 Nov 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan
$67.34K 1,972 at 34.15
2.2%
Planned (10b5-1)
5 Nov 2024
Juvenal Tobin W Chief Commercial Officer
Sold on a plan
$124.71K 3,507 at 35.56
6.1%
Planned (10b5-1)
4 Nov 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 12×
$102.66K 3,155 at 32.54
32.8%
Planned (10b5-1)
4 Nov 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer
Sold on a plan 2×
$64.16K 1,972 at 32.54
2.2%
Planned (10b5-1)
1 Nov 2024
BRADBURY DANIEL Director · indirect
Sold on a plan 9×
$273.25K 7,867 at 34.73
64.8%
Sold half or more
1 Nov 2024
Juvenal Tobin W Chief Commercial Officer
Sold on a plan
$109.71K 3,100 at 35.39
5.4%
Planned (10b5-1)
14 Oct 2024
MAETZOLD DEREK J Pres. & Chief Exec. Officer · indirect
Sold on a plan 6×
$101.82K 3,155 at 32.27
31.9%
Planned (10b5-1)
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