Insider trading

Period: 120 months Stock: SERA Role: CEO × + 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.

25 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.

25 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.

25 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.

25 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.
25 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
25 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.

25 decisions over 120 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
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
9 Jun 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$43.17K 20,755 at 2.08
2.3%
Not planned
11 Mar 2026
Lindgardt Zhenya Chief Executive Officer
Sold at will
$6.06K 2,973 at 2.04
0.4%
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 Dec 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$13.75K 4,155 at 3.31
0.5%
Not planned
9 Dec 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$85.77K 28,215 at 3.04
3.5%
Not planned
10 Nov 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$30.38K 11,594 at 2.62
1.4%
Not planned
11 Sep 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$10.16K 3,246 at 3.13
0.4%
Not planned
9 Sep 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$66.65K 21,158 at 3.15
2.5%
Not planned
8 Aug 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$21.77K 8,571 at 2.54
1.0%
Not planned
10 Jun 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$4.95K 3,344 at 1.48
0.4%
Not planned
9 Jun 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$32.95K 23,042 at 1.43
2.7%
Not planned
8 May 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$22.95K 9,406 at 2.44
1.1%
Not planned
7 Mar 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$122.45K 29,722 at 4.12
3.3%
Not planned
12 Feb 2025
Lindgardt Zhenya Chief Executive Officer
Sold at will
$64.46K 14,075 at 4.58
1.8%
Not planned
10 Dec 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$194.32K 26,224 at 7.41
3.2%
Not planned
11 Nov 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$88.39K 12,075 at 7.32
1.5%
Not planned
10 Sep 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$189.89K 25,085 at 7.57
2.9%
Not planned
7 Aug 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$91.47K 12,327 at 7.42
1.4%
Not planned
10 Jun 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$217.89K 26,867 at 8.11
3.0%
Not planned
8 May 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$115.00K 11,992 at 9.59
1.3%
Not planned
26 Mar 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$364.48K 38,899 at 9.37
4.1%
Not planned
6 Feb 2024
Lindgardt Zhenya Chief Executive Officer
Sold at will
$224.82K 27,997 at 8.03
2.9%
Not planned
Showing 1–25 of 25.