Insider trading

Period: 120 months Stock: PCSA Role: Other officers × + 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.

42 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.

42 decisions over 120 months Remove this filter
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.

42 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.

42 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.
42 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
42 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.

42 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
30 Jun 2026
Young David Pres. Research & Development
Bought
$4.88K 2,531 at 1.93
13.2%
30 Jun 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 2,436 at 1.93
20.4%
+20% of stake
30 Jun 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.06K 2,106 at 1.93
19.1%
15 Jun 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 2,118 at 2.22
21.5%
+22% of stake
15 Jun 2026
Young David Pres. Research & Development
Bought
$4.59K 2,067 at 2.22
12.1%
15 Jun 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.06K 1,831 at 2.22
20.0%
29 May 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 1,829 at 2.57
22.8%
+23% of stake
29 May 2026
Young David Pres. Research & Development
Bought
$4.59K 1,786 at 2.57
11.6%
29 May 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.07K 1,582 at 2.57
20.8%
+21% of stake
15 May 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 1,583 at 2.97
24.6%
+25% of stake
15 May 2026
Young David Pres. Research & Development
Bought
$4.59K 1,545 at 2.97
11.2%
15 May 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.07K 1,369 at 2.97
22.0%
+22% of stake
30 Apr 2026
Bigora Sian Chief Development Officer
Bought
$5.34K 1,986 at 2.69
36.0%
+36% of stake
30 Apr 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 1,748 at 2.69
37.2%
Largest buy in 3 yrs
30 Apr 2026
Young David Pres. Research & Development
Bought
$4.59K 1,706 at 2.69
14.1%
30 Apr 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.06K 1,511 at 2.69
32.0%
+32% of stake
15 Apr 2026
Bigora Sian Chief Development Officer
Bought
$5.34K 1,799 at 2.97
48.5%
Largest buy in 3 yrs
15 Apr 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 1,583 at 2.97
50.9%
Largest buy in 3 yrs
15 Apr 2026
Young David Pres. Research & Development
Bought
$4.59K 1,545 at 2.97
14.6%
15 Apr 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.07K 1,369 at 2.97
40.8%
+41% of stake
31 Mar 2026
Bigora Sian Chief Development Officer
Bought
$5.34K 2,107 at 2.54
131%
First buy on file
31 Mar 2026
Guy Wendy Chief Administrative Officer
Bought
$4.70K 1,854 at 2.54
148%
First buy on file
31 Mar 2026
Young David Pres. Research & Development
Bought
$4.59K 1,810 at 2.54
20.7%
+21% of stake
31 Mar 2026
Lin Patrick Chief Business - Strategy Off
Bought
$4.06K 1,603 at 2.54
91.4%
+91% of stake
27 Jan 2025
Young David Pres. Research & Development
Bought
$99.29K 124,500 at 0.80
154%
Largest buy in 3 yrs
27 Jan 2025
Lin Patrick Chief Business - Strategy Off · indirect
Bought
$34.69K 43,500 at 0.80
opened
Largest buy in 3 yrs
7 Feb 2024
Young David Pres. Research & Development
Bought
$51.53K 21,000 at 2.45
36.0%
+36% of stake
6 Feb 2024
Young David Pres. Research & Development
Bought
$50.50K 20,000 at 2.53
52.1%
+52% of stake
1 Feb 2024
Lin Patrick Chief Business - Strategy Off
Bought
$3.60K 1,500 at 2.40
5.8%
31 Jan 2024
Lin Patrick Chief Business - Strategy Off
Bought
$5.93K 2,500 at 2.37
10.6%
17 May 2022
Lin Patrick Chief Business - Strategy Off
Bought
$3.19K 2,000 at 1.59
0.5%
7 Apr 2022
Lin Patrick Chief Business - Strategy Off
Bought
$2.84K 800 at 3.54
0.2%
6 Apr 2022
Lin Patrick Chief Business - Strategy Off
Bought
$3.75K 1,200 at 3.13
0.3%
14 Dec 2021
Lin Patrick Chief Business - Strategy Off
Bought 2×
$24.00K 6,000 at 4.00
1.4%
3 Dec 2021
Lin Patrick Chief Business - Strategy Off
Bought
$16.80K 3,500 at 4.80
0.8%
26 Aug 2021
Lin Patrick Chief Business - Strategy Off
Bought
$24.09K 4,000 at 6.02
1.0%
Largest buy in 3 yrs
22 Jun 2021
Floyd Robert Michael Chief Operating Officer
Bought
$14.06K 2,000 at 7.03
7.7%
First buy on file
21 Jun 2021
Lin Patrick Chief Business - Strategy Off
Bought
$13.30K 2,000 at 6.65
0.5%
First buy on file
8 Apr 2021
BESSER JAMES E See Remarks
Sold, plan not stated
$4.30M 400,000 at 10.76
38.2%
7 Apr 2021
BESSER JAMES E See Remarks
Sold, plan not stated
$170.72K 16,000 at 10.67
1.5%
6 Apr 2021
BESSER JAMES E See Remarks
Sold, plan not stated
$346.62K 31,771 at 10.91
2.9%
1 Oct 2020
Lin Patrick Chief Business - Strategy Off
Bought
$65.63K 31,250 at 2.10
8.5%
First buy on file
Showing 1–42 of 42.