Insider trading

Period: 12 months Stock: SERA Plan: Discretionary × + 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.

42 decisions over 12 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 12 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.

42 decisions over 12 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 12 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 12 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
42 decisions over 12 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 12 months
Stock
Insider
Type ?
Why it stands out
10 Sep 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$14.04K 7,022 at 2.00
0.8%
Not planned
10 Sep 2026
Jackson Benjamin General Counsel
Sold at will
$4.38K 2,190 at 2.00
1.4%
Not planned
10 Sep 2026
Anderson Dyaarl Lee Jr. Chief Commercial Officer
Sold at will
$3.60K 1,800 at 2.00
2.3%
Not planned
10 Sep 2026
Inglis Tiffany Eul Davis Chief Medical Officer
Sold at will
$972.00 486 at 2.00
0.5%
Not planned
8 Sep 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$40.28K 20,139 at 2.00
2.3%
Not planned
11 Jun 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$14.05K 6,990 at 2.01
0.8%
Not planned
11 Jun 2026
Anderson Dyaarl Lee Jr. Chief Commercial Officer
Sold at will
$9.53K 4,739 at 2.01
5.7%
Not planned
11 Jun 2026
Jackson Benjamin General Counsel
Sold at will
$4.38K 2,179 at 2.01
1.3%
Not planned
11 Jun 2026
Aerts Austin Chief Financial Officer
Sold at will
$4.09K 2,037 at 2.01
0.7%
Not planned
11 Jun 2026
Inglis Tiffany Eul Davis Chief Medical Officer
Sold at will
$727.62 362 at 2.01
0.4%
Not planned
9 Jun 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$43.17K 20,755 at 2.08
2.3%
Not planned
9 Jun 2026
Aerts Austin Chief Financial Officer
Sold at will
$11.32K 5,440 at 2.08
1.8%
Not planned
11 Mar 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$6.06K 2,973 at 2.04
0.4%
Not planned
11 Mar 2026
Boniface John J. Chief Scientific Officer
Sold at will
$3.09K 1,517 at 2.04
1.0%
Not planned
11 Mar 2026
Kearney Paul Chief Data Officer
Sold at will
$2.85K 1,396 at 2.04
0.8%
Not planned
11 Mar 2026
Jackson Benjamin General Counsel
Sold at will
$2.10K 1,027 at 2.04
0.9%
Not planned
11 Mar 2026
Aerts Austin Chief Financial Officer
Sold at will
$2.08K 1,019 at 2.04
0.4%
Not planned
11 Mar 2026
Harrison Robert Gardner Chief Information Officer
Sold at will
$1.46K 716 at 2.04
0.9%
Not planned
10 Mar 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$43.01K 22,639 at 1.90
3.0%
Not planned
10 Mar 2026
Aerts Austin Chief Financial Officer
Sold at will
$11.53K 6,069 at 1.90
2.2%
Not planned
9 Mar 2026
Harrison Robert Gardner Chief Information Officer
Sold at will
$6.59K 3,360 at 1.96
4.2%
Not planned
9 Mar 2026
Jackson Benjamin General Counsel
Sold at will
$6.11K 3,119 at 1.96
2.6%
Not planned
9 Mar 2026
Boniface John J. Chief Scientific Officer
Sold at will
$5.95K 3,038 at 1.96
2.0%
Not planned
9 Mar 2026
Kearney Paul Chief Data Officer
Sold at will
$3.97K 2,026 at 1.96
1.2%
Not planned
9 Mar 2026
Aerts Austin Chief Financial Officer
Sold at will
$1.32K 674 at 1.96
0.2%
Not planned
10 Dec 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$13.75K 4,155 at 3.31
0.5%
Not planned
10 Dec 2025
Boniface John J. Chief Scientific Officer
Sold at will
$4.41K 1,332 at 3.31
0.9%
Not planned
10 Dec 2025
Kearney Paul Chief Data Officer
Sold at will
$4.02K 1,213 at 3.31
0.7%
Not planned
10 Dec 2025
Jackson Benjamin General Counsel
Sold at will
$2.95K 892 at 3.31
0.7%
Not planned
10 Dec 2025
Aerts Austin Chief Financial Officer
Sold at will
$2.89K 873 at 3.31
0.3%
Not planned
10 Dec 2025
Harrison Robert Gardner Chief Information Officer
Sold at will
$2.04K 616 at 3.31
0.7%
Not planned
9 Dec 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$85.77K 28,215 at 3.04
3.5%
Not planned
9 Dec 2025
Aerts Austin Chief Financial Officer
Sold at will
$15.91K 5,232 at 3.04
1.9%
Not planned
5 Dec 2025
Sold at will
$890.60 292 at 3.05
0.5%
Not planned
2 Dec 2025
Kearney Paul Chief Data Officer
Sold at will
$94.68K 32,203 at 2.94
16.0%
Not planned
10 Nov 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$30.38K 11,594 at 2.62
1.4%
Not planned
10 Nov 2025
Boniface John J. Chief Scientific Officer
Sold at will
$20.35K 7,767 at 2.62
4.9%
Not planned
10 Nov 2025
Kearney Paul Chief Data Officer
Sold at will
$18.53K 7,073 at 2.62
4.0%
Not planned
10 Nov 2025
Jackson Benjamin General Counsel
Sold at will
$18.49K 7,059 at 2.62
5.6%
Not planned
10 Nov 2025
Harrison Robert Gardner Chief Information Officer
Sold at will
$17.10K 6,528 at 2.62
6.8%
Not planned
10 Nov 2025
Aerts Austin Chief Financial Officer
Sold at will
$16.64K 6,351 at 2.62
2.2%
Not planned
5 Nov 2025
Sold at will
$671.84 221 at 3.04
0.4%
Not planned
Showing 1–42 of 42.