Insider trading

Period: 120 months Stock: CTMX Minimum amount: $100K × + 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.

68 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.

68 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.

68 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.

68 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.
68 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
68 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.

68 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
17 Mar 2026
Sold on a plan
$764.14K 118,969 at 6.42
9.9%
Planned (10b5-1)
17 Mar 2026
BELVIN MARCIA SVP, Chief Scientific Officer
Sold at will
$202.27K 31,492 at 6.42
9.5%
Not planned
17 Mar 2026
Chu Yu-Waye Chief Medical Officer
Sold at will
$136.68K 21,279 at 6.42
10.1%
Not planned
17 Mar 2026
Ogden Christopher Chief Financial Officer
Sold at will
$124.11K 19,323 at 6.42
6.1%
Not planned
6 Nov 2025
Sold on a plan
$461.91K 101,793 at 4.54
9.3%
Planned (10b5-1)
16 Jun 2025
Sold at will
$149.26K 55,511 at 2.69
4.8%
Not planned
16 Jun 2021
McCarthy Sean A. President and CEO · indirect
Sold, plan not stated
$704.47K 100,000 at 7.04
51.8%
Sold half or more
31 Mar 2021
McCarthy Sean A. President and CEO
Sold, plan not stated
$749.47K 100,000 at 7.49
32.6%
12 May 2020
McCarthy Sean A. President and CEO
Sold, plan not stated
$540.00K 36,000 at 15.00
29.9%
4 Sep 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$285.34K 13,052 at 21.86
13.7%
5 Jul 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$112.69K 4,497 at 25.06
5.2%
2 Jul 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$305.71K 13,052 at 23.42
13.7%
1 May 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$519.74K 19,578 at 26.55
80.8%
Sold half or more
26 Mar 2018
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$159.64K 5,000 at 31.93
1.8%
2 Mar 2018
RAY DEBANJAN Chief Financial Officer
Sold, plan not stated 3×
$607.45K 20,000 at 30.37
80.8%
Sold half or more
2 Mar 2018
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$485.47K 16,181 at 30.00
5.5%
2 Mar 2018
HUMPHREY RACHEL Chief Medical Officer
Sold, plan not stated
$484.80K 16,160 at 30.00
34.8%
1 Mar 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$576.14K 19,578 at 29.43
80.8%
Sold half or more
1 Mar 2018
RAY DEBANJAN Chief Financial Officer
Sold, plan not stated
$382.24K 13,000 at 29.40
73.3%
Sold half or more
28 Feb 2018
HUMPHREY RACHEL Chief Medical Officer
Sold, plan not stated
$715.20K 23,840 at 30.00
44.1%
28 Feb 2018
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$114.57K 3,819 at 30.00
1.3%
5 Jan 2018
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$250.08K 10,000 at 25.01
3.3%
5 Jan 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$163.22K 6,526 at 25.01
58.4%
Sold half or more
2 Jan 2018
McCarthy Sean A. President and CEO
Sold, plan not stated
$274.61K 13,052 at 21.04
73.8%
Sold half or more
26 Dec 2017
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$111.43K 5,000 at 22.29
1.6%
1 Dec 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$295.40K 14,340 at 20.60
75.5%
Sold half or more
1 Nov 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$284.83K 14,342 at 19.86
77.2%
Sold half or more
4 Oct 2017
Kavanaugh William Michael CSO, Head Res.&Non-Clin. Dev.
Sold, plan not stated
$1.18M 48,368 at 24.34
77.7%
Sold half or more
4 Oct 2017
TEPPER ROBERT I 10% owner
Sold, plan not stated
$603.07K 24,777 at 24.34
45.6%
4 Oct 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$461.37K 19,120 at 24.13
81.8%
Sold half or more
4 Oct 2017
GLUCK FREDERICK W Director · indirect
Sold, plan not stated
$242.68K 10,000 at 24.27
3.1%
2 Oct 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$177.57K 9,562 at 18.57
69.3%
Sold half or more
19 Sep 2017
TEPPER ROBERT I 10% owner
Sold, plan not stated
$360.00K 20,000 at 18.00
26.9%
1 Sep 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$171.99K 9,930 at 17.32
70.1%
Sold half or more
31 Aug 2017
McCarthy Sean A. President and CEO
Sold, plan not stated 2×
$328.26K 18,756 at 17.50
81.5%
Sold half or more
29 Jun 2017
TEPPER ROBERT I 10% owner
Sold, plan not stated
$240.00K 15,000 at 16.00
25.1%
12 Apr 2017
STARR KEVIN P 10% owner
Sold, plan not stated
$463.79K 28,357 at 16.36
47.4%
27 Mar 2017
Sold, plan not stated
$11.70M 650,000 at 18.00
11.2%
23 Mar 2017
Sold, plan not stated
$17.00M 1,000,000 at 17.00
14.7%
20 Mar 2017
Goeltz II Robert C. Chief Financial Officer
Sold, plan not stated 2×
$426.34K 21,517 at 19.81
68.7%
Sold half or more
20 Mar 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$281.12K 14,343 at 19.60
87.9%
Sold half or more
3 Mar 2017
McCarthy Sean A. President and CEO
Sold, plan not stated
$215.15K 14,343 at 15.00
87.9%
Sold half or more
29 Nov 2016
Canaan IX L.P. Director · indirect
Sold, plan not stated
$247.01K 22,086 at 11.18
0.6%
29 Nov 2016
SHANNON TIMOTHY M Director · indirect
Sold, plan not stated
$247.01K 22,086 at 11.18
0.7%
28 Nov 2016
Canaan IX L.P. Director · indirect
Sold, plan not stated
$236.14K 20,840 at 11.33
0.6%
28 Nov 2016
SHANNON TIMOTHY M Director · indirect
Sold, plan not stated
$236.14K 20,840 at 11.33
0.6%
23 Nov 2016
Canaan IX L.P. Director · indirect
Sold, plan not stated
$128.92K 10,890 at 11.84
0.3%
23 Nov 2016
SHANNON TIMOTHY M Director · indirect
Sold, plan not stated
$128.92K 10,890 at 11.84
0.3%
22 Nov 2016
Canaan IX L.P. Director · indirect
Sold, plan not stated
$498.08K 42,550 at 11.71
1.1%
22 Nov 2016
SHANNON TIMOTHY M Director · indirect
Sold, plan not stated
$498.08K 42,550 at 11.71
1.1%
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