Insider trading

Period: 120 months Stock: SEER Type of trade: Sold × + 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.

52 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.

52 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.

52 decisions over 120 months Remove this filter
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

52 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.
52 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
52 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.

52 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
18 Aug 2026
Horn David R. PRESIDENT & CFO
Sold at will
$14.81K 7,309 at 2.03
1.5%
Not planned
8 Jul 2026
Nishar Dipchand Director
Sold on a plan
$23.27K 10,660 at 2.18
15.3%
Planned (10b5-1)
20 May 2026
Horn David R. PRESIDENT & CFO
Sold at will
$12.35K 7,303 at 1.69
1.5%
Not planned
18 Feb 2026
Farokhzad Omid CEO AND CHAIR
Sold at will
$48.65K 24,385 at 1.99
0.7%
Not planned
18 Feb 2026
Horn David R. PRESIDENT & CFO
Sold at will
$15.45K 7,743 at 1.99
1.5%
Not planned
19 Nov 2025
Farokhzad Omid CEO AND CHAIR
Sold at will
$66.71K 33,838 at 1.97
2.7%
Not planned
19 Nov 2025
Horn David R. PRESIDENT & CFO
Sold at will
$13.40K 6,797 at 1.97
1.5%
Not planned
20 Aug 2025
Farokhzad Omid CEO AND CHAIR
Sold at will
$69.48K 33,992 at 2.04
2.6%
Not planned
20 Aug 2025
Horn David R. PRESIDENT & CFO
Sold at will
$13.96K 6,827 at 2.04
1.5%
Not planned
13 Jun 2025
Nishar Dipchand Director
Sold on a plan
$62.94K 30,253 at 2.08
38.1%
Planned (10b5-1)
20 May 2025
Farokhzad Omid CEO AND CHAIR
Sold at will
$69.85K 33,663 at 2.08
2.5%
Not planned
20 May 2025
Horn David R. PRESIDENT & CFO
Sold at will
$14.03K 6,760 at 2.08
1.5%
Not planned
4 Feb 2025
Farokhzad Omid CEO AND CHAIR
Sold at will
$18.04K 8,068 at 2.24
0.6%
Not planned
4 Feb 2025
Horn David R. PRESIDENT & CFO
Sold at will
$7.94K 3,550 at 2.24
0.7%
Not planned
14 Jun 2024
Nishar Dipchand Director
Sold on a plan
$21.51K 12,109 at 1.78
13.2%
Planned (10b5-1)
7 Mar 2024
Farokhzad Omid CEO AND CHAIR
Sold at will
$107.42K 52,857 at 2.03
3.5%
Not planned
22 Feb 2024
Horn David R. PRESIDENT & CFO
Sold at will
$20.02K 12,684 at 1.58
2.6%
Not planned
22 Feb 2024
Kogan Elona CHIEF LEGAL OFFICER
Sold at will
$20.02K 12,684 at 1.58
4.4%
Not planned
5 Feb 2024
Horn David R. President and CFO
Sold at will
$6.01K 3,608 at 1.67
1.1%
Not planned
4 Dec 2023
Kogan Elona Chief Legal Officer
Sold at will
$13.87K 8,182 at 1.70
4.8%
Not planned
18 May 2023
Thomas Scott D Chief Commercial Officer
Sold at will
$5.22K 1,468 at 3.56
1.5%
Not planned
21 Feb 2023
Farokhzad Omid CEO, President and Chair
Sold, plan not stated
$57.21K 13,840 at 4.13
1.8%
21 Feb 2023
Horn David R. Chief Financial Officer
Sold, plan not stated
$24.61K 5,951 at 4.13
1.8%
21 Feb 2023
Kogan Elona General Counsel and Secretary
Sold, plan not stated
$24.60K 5,951 at 4.13
3.4%
7 Feb 2023
Farokhzad Omid CEO, President and Chair
Sold, plan not stated
$39.13K 8,379 at 4.67
2.2%
7 Feb 2023
Horn David R. Chief Financial Officer
Sold, plan not stated
$16.86K 3,124 at 5.40
1.2%
17 Jan 2023
Farokhzad Omid CEO, President and Chair
Sold, plan not stated
$24.57K 4,800 at 5.12
1.2%
17 Jan 2023
Horn David R. Chief Financial Officer
Sold, plan not stated
$13.32K 2,602 at 5.12
1.0%
8 Dec 2022
Horn David R. Chief Financial Officer
Sold, plan not stated
$124.07K 18,884 at 6.57
6.5%
8 Jun 2022
Kogan Elona General Counsel and Secretary
Sold, plan not stated
$72.92K 8,185 at 8.91
7.5%
27 May 2022
OSTADAN OMEAD President & COO
Sold, plan not stated
$35.79K 4,441 at 8.06
1.2%
20 Apr 2022
OSTADAN OMEAD President & COO
Sold, plan not stated
$529.93K 52,042 at 10.18
11.9%
2 Feb 2022
Horn David R. Chief Financial Officer
Sold, plan not stated
$51.23K 2,944 at 17.40
1.3%
3 Jan 2022
Horn David R. Chief Financial Officer
Sold, plan not stated
$52.65K 2,308 at 22.81
1.0%
15 Dec 2021
OSTADAN OMEAD President & COO
Sold, plan not stated 3×
$461.95K 20,000 at 23.10
5.0%
6 Dec 2021
Horn David R. Chief Financial Officer
Sold, plan not stated
$532.18K 26,273 at 20.26
11.3%
15 Nov 2021
OSTADAN OMEAD President & COO
Sold, plan not stated 2×
$609.91K 20,000 at 30.50
5.0%
1 Nov 2021
Horn David R. Chief Financial Officer
Sold, plan not stated 2×
$377.76K 10,000 at 37.78
4.2%
15 Oct 2021
OSTADAN OMEAD President & COO
Sold, plan not stated 2×
$659.27K 20,000 at 32.96
5.0%
1 Oct 2021
Horn David R. Chief Financial Officer
Sold, plan not stated 2×
$338.47K 10,000 at 33.85
4.2%
15 Sep 2021
OSTADAN OMEAD President & COO
Sold, plan not stated 3×
$818.72K 20,000 at 40.94
5.0%
1 Sep 2021
Horn David R. Chief Financial Officer
Sold, plan not stated 2×
$395.75K 10,000 at 39.58
4.2%
2 Aug 2021
Horn David R. Chief Financial Officer
Sold, plan not stated 2×
$311.94K 10,000 at 31.19
4.2%
1 Jul 2021
Horn David R. Chief Financial Officer
Sold, plan not stated 3×
$313.24K 10,000 at 31.32
4.2%
9 Jun 2021
Sold, plan not stated
$25.06M 835,278 at 30.00
16.9%
9 Jun 2021
Sold, plan not stated
$4.94M 164,722 at 30.00
16.9%
2 Jun 2021
Horn David R. Chief Financial Officer
Sold, plan not stated
$300.95K 10,000 at 30.10
4.2%
17 Feb 2021
Farokhzad Omid CEO and Chair of the Board · indirect
Sold, plan not stated 2×
$22.76M 354,741 at 64.15
100%
Sold half or more
1 Feb 2021
Farokhzad Omid CEO and Chair of the Board · indirect
Sold, plan not stated 2×
$49.77M 775,910 at 64.15
100%
Sold half or more
1 Feb 2021
Farokhzad Omid CEO and Chair of the Board
Sold, plan not stated
$20.10M 313,369 at 64.15
51.3%
Sold half or more
Showing 1–50 of 52. Page 1 of 2 Older →