Insider trading

Period: 120 months Stock: SER 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.

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
7 Jul 2026
Bought
$2.03K 1,000 at 2.03
opened
First buy on file
12 Jun 2026
WILSON KAREN J Director
Bought
$8.85K 5,000 at 1.77
98.0%
+98% of stake
11 Jun 2026
WILSON KAREN J Director
Bought
$8.90K 5,100 at 1.75
opened
22 May 2026
WILSON KAREN J Director
Bought
$19.30K 10,000 at 1.93
100%
Largest buy in 3 yrs
22 May 2026
Venkatesan Jay Director
Bought
$1.05K 589 at 1.78
opened
First buy on file
21 May 2026
WILSON KAREN J Director
Bought
$17.70K 10,000 at 1.77
opened
First buy on file
19 May 2026
Bought
$20.10K 12,183 at 1.65
opened
First buy on file
28 Jul 2025
Moreadith Randall Chief Scientific Officer
Sold at will
$38.29K 6,500 at 5.89
100%
Sold half or more
21 Jul 2025
Moreadith Randall Chief Scientific Officer
Sold at will
$34.71K 6,500 at 5.34
100%
Sold half or more
14 Jul 2025
Moreadith Randall Chief Scientific Officer
Sold at will
$32.57K 6,500 at 5.01
100%
Sold half or more
17 Dec 2024
Bailey Gregory Director
Bought
$17.74K 3,866 at 4.59
6.1%
20 Sep 2024
Bailey Gregory Director
Bought
$6.85K 1,137 at 6.03
1.8%
19 Sep 2024
Bailey Gregory Director
Bought
$71.38K 11,679 at 6.11
23.1%
+23% of stake
18 Sep 2024
Bailey Gregory Director
Bought
$16.87K 2,709 at 6.23
5.7%
12 Sep 2024
MINTZ STEVEN Director · indirect
Bought
$38.81K 6,000 at 6.47
52.4%
+52% of stake
20 Aug 2024
Bailey Gregory Director
Bought
$14.65K 1,776 at 8.25
3.9%
19 Aug 2024
Bailey Gregory Director
Bought
$50.76K 6,400 at 7.93
16.2%
16 Aug 2024
Bailey Gregory Director
Bought
$46.78K 6,400 at 7.31
19.4%
15 Aug 2024
MINTZ STEVEN Director · indirect
Bought 4×
$50.03K 7,593 at 6.59
197%
+197% of stake
15 Aug 2024
Bailey Gregory Director
Bought
$42.58K 6,400 at 6.65
24.1%
+24% of stake
15 Aug 2024
MINTZ STEVEN Director
Bought
$8.90K 1,350 at 6.59
12.4%
14 Aug 2024
Bailey Gregory Director
Bought
$45.23K 6,400 at 7.07
31.7%
+32% of stake
25 Jun 2024
MINTZ STEVEN Director
Bought
$23.40K 2,600 at 9.00
31.3%
+31% of stake
21 Jun 2024
MINTZ STEVEN Director
Bought
$47.50K 5,000 at 9.50
151%
+151% of stake
30 May 2024
Bailey Gregory Director
Bought
$49.45K 5,205 at 9.50
34.7%
+35% of stake
29 May 2024
Bailey Gregory Director
Bought
$11.14K 1,173 at 9.50
8.5%
28 May 2024
Bailey Gregory Director
Bought
$85.68K 9,019 at 9.50
188%
Largest buy in 3 yrs
23 May 2024
Bailey Gregory Director
Bought
$22.52K 2,371 at 9.50
97.3%
Largest buy in 3 yrs
21 May 2024
MINTZ STEVEN Director · indirect
Bought 2×
$90.89K 9,151 at 9.93
×12
Largest buy in 3 yrs
21 May 2024
Bailey Gregory Director
Bought 2×
$22.21K 2,338 at 9.50
×23
Largest buy in 3 yrs
20 May 2024
MINTZ STEVEN Director · indirect
Bought 3×
$25.23K 2,675 at 9.43
opened
Largest buy in 3 yrs
20 May 2024
Bailey Gregory Director
Bought
$900.00 100 at 9.00
opened
First buy on file
17 May 2024
MINTZ STEVEN Director · indirect
Bought
$4.71K 554 at 8.50
opened
First buy on file
Showing 1–33 of 33.