Insider trading

Period: 120 months Stock: CALC Plan: Discretionary × + 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.

98 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.

98 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.

98 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.

98 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.
98 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
98 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.

98 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
25 Jun 2026
Middleton Fred A Director · indirect
Bought
$200.00K 248,972 at 0.80
30.6%
+31% of stake
18 Sep 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$7.68K 2,500 at 3.07
3.1%
15 Sep 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$9.10K 3,400 at 2.68
4.3%
12 Sep 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$15.60K 5,000 at 3.12
6.8%
9 Sep 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$7.38K 2,343 at 3.15
3.3%
29 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$2.19K 800 at 2.74
1.1%
28 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$26.34K 9,200 at 2.86
15.1%
21 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$9.80K 3,508 at 2.79
6.1%
20 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$5.44K 2,000 at 2.72
3.6%
19 Aug 2025
Hebbar Sudarshan Chief Medical Officer
Bought
$26.96K 9,563 at 2.82
18.4%
19 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$2.79K 1,000 at 2.79
1.8%
15 Aug 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$14.71K 5,076 at 2.90
10.3%
15 Aug 2025
Hebbar Sudarshan Chief Medical Officer
Bought
$12.27K 4,392 at 2.79
9.2%
14 Aug 2025
Hebbar Sudarshan Chief Medical Officer
Bought
$4.09K 1,584 at 2.59
3.4%
28 Jul 2025
Stauderman Kenneth A. Chief Scientific Officer
Bought
$3.96K 1,000 at 3.96
8.4%
Largest buy in 3 yrs
25 Jul 2025
Stauderman Kenneth A. Chief Scientific Officer · indirect
Sold at will
$3.65K 1,000 at 3.65
100%
Sold half or more
22 Jul 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$5.66K 1,500 at 3.78
3.1%
21 Jul 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$5.06K 1,500 at 3.37
3.2%
21 Jul 2025
Leheny A. Rachel CHIEF EXECUTIVE OFFICER · indirect
Bought
$3.40K 1,000 at 3.40
40.0%
+40% of stake
18 Jul 2025
WILSON ROBERT N Director
Bought
$12.92K 4,500 at 2.87
1.1%
18 Jul 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$5.76K 2,000 at 2.88
4.5%
14 Jul 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$15.81K 6,500 at 2.43
17.2%
14 Jul 2025
Leheny A. Rachel CHIEF EXECUTIVE OFFICER · indirect
Bought
$6.18K 2,500 at 2.47
opened
9 Jul 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$8.02K 5,000 at 1.60
15.2%
1 Jul 2025
Stauderman Kenneth A. Chief Scientific Officer · indirect
Bought
$1.85K 1,000 at 1.85
opened
First buy on file
26 Jun 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$6.48K 4,500 at 1.44
15.9%
26 Jun 2025
Bardin Stephen Chief Financial Officer · indirect
Bought
$3.01K 2,000 at 1.50
200%
Largest buy in 3 yrs
11 Jun 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$9.25K 5,000 at 1.85
21.4%
+21% of stake
6 Jun 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$8.88K 5,000 at 1.78
27.3%
+27% of stake
5 Jun 2025
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$8.67K 5,100 at 1.70
38.6%
+39% of stake
30 May 2025
Bardin Stephen Chief Financial Officer
Bought
$1.69K 1,000 at 1.69
2.5%
First buy on file
6 Dec 2024
Middleton Fred A Director
Bought
$12.72K 4,800 at 2.65
15.1%
1 Nov 2024
Middleton Fred A Director · indirect
Bought 2×
$329.04K 87,744 at 3.75
12.1%
1 Nov 2024
Bought
$325.75K 86,867 at 3.75
11.9%
First buy on file
1 Nov 2024
WILSON ROBERT N Director
Bought
$200.00K 53,333 at 3.75
14.6%
1 Nov 2024
Roberts Eric W CHIEF BUSINESS OFFICER
Bought
$200.00K 53,333 at 3.75
47.9%
Largest buy in 3 yrs
1 Nov 2024
Middleton Fred A Director
Bought
$75.00K 20,000 at 3.75
171%
+171% of stake
1 Nov 2024
Leheny A. Rachel CHIEF EXECUTIVE OFFICER
Bought
$75.00K 20,000 at 3.75
18.0%
Largest buy in 3 yrs
1 Nov 2024
Bought
$3.29K 877 at 3.75
4.1%
First buy on file
27 Aug 2024
Leheny A. Rachel CHIEF EXECUTIVE OFFICER
Bought
$4.19K 1,000 at 4.19
0.9%
23 Aug 2024
WILSON ROBERT N Director
Bought
$200.83K 54,000 at 3.72
17.4%
Largest buy in 3 yrs
23 Aug 2024
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought 2×
$17.87K 5,000 at 3.57
11.9%
21 Aug 2024
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$20.20K 5,000 at 4.04
12.5%
28 Jun 2024
WILSON ROBERT N Director
Bought
$180.50K 51,278 at 3.52
19.8%
Largest buy in 3 yrs
27 Jun 2024
WILSON ROBERT N Director
Bought
$27.30K 8,443 at 3.23
3.4%
Largest buy in 3 yrs
27 Jun 2024
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$16.10K 5,000 at 3.22
95.7%
+96% of stake
2 Apr 2024
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$12.69K 3,254 at 3.90
8.9%
1 Apr 2024
Roberts Eric W CHIEF BUSINESS OFFICER · indirect
Bought
$2.91K 746 at 3.90
2.1%
23 Jan 2024
Middleton Fred A Director · indirect
Bought 7×
$2.52M 679,384 at 3.70
254%
Largest buy in 3 yrs
23 Jan 2024
Sanderling Venture Partners VI LP 10% owner · indirect
Bought 6×
$1.61M 436,028 at 3.70
150%
First buy on file
Showing 1–50 of 98. Page 1 of 2 Older →