Insider trading

Period: 120 months Stock: TARS Role: Directors × + 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.

23 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.

23 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.

23 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.

23 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.
23 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
23 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.

23 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
15 Sep 2026
Sold on a plan 3×
$979.74K 12,500 at 78.38
11.7%
Planned (10b5-1)
15 Jun 2026
Sold on a plan 2×
$776.50K 12,500 at 62.12
10.5%
Planned (10b5-1)
15 Jun 2026
Sold on a plan
$183.38K 2,954 at 62.08
57.0%
Sold half or more
16 Mar 2026
Sold on a plan 3×
$859.82K 12,500 at 68.79
9.7%
Planned (10b5-1)
15 Dec 2025
Sold on a plan 3×
$1.02M 12,500 at 81.43
8.8%
Planned (10b5-1)
15 Dec 2025
LINK WILLIAM J PHD Director · indirect
Sold on a plan 2×
$846.86K 10,446 at 81.07
100%
Sold half or more
8 Sep 2025
Sold at will
$1.55M 27,116 at 57.00
15.9%
Not planned
12 Aug 2024
LINK WILLIAM J PHD Director · indirect
Sold at will 2×
$912.96K 35,000 at 26.08
100%
Sold half or more
15 Dec 2023
Bought
$18.96K 1,000 at 18.96
50.0%
First buy on file
15 Aug 2023
Lin Elizabeth Yeu Director · indirect
Bought
$159.70K 9,506 at 16.80
149%
+149% of stake
14 Sep 2022
Lin Elizabeth Yeu Director · indirect
Bought 2×
$296.61K 18,400 at 16.12
opened
First buy on file
5 May 2022
Ackermann Michael Director · indirect
Bought
$1.35M 100,000 at 13.50
opened
First buy on file
1 Dec 2021
Sold, plan not stated 4×
$143.93K 5,833 at 24.68
0.5%
1 Nov 2021
Sold, plan not stated 2×
$162.29K 5,833 at 27.82
0.5%
12 Oct 2021
Sold, plan not stated 2×
$148.00K 5,633 at 26.27
0.5%
8 Oct 2021
Sold, plan not stated
$5.01K 200 at 25.03
0.0%
1 Sep 2021
Sold, plan not stated
$147.24K 5,833 at 25.24
0.5%
11 Aug 2021
Sold, plan not stated
$15.62K 621 at 25.15
0.1%
9 Aug 2021
Sold, plan not stated
$17.50K 700 at 25.00
0.1%
6 Aug 2021
Sold, plan not stated
$78.23K 3,129 at 25.00
0.3%
5 Aug 2021
Sold, plan not stated 3×
$34.58K 1,383 at 25.00
0.1%
20 Oct 2020
Tester Jason E. Director · indirect
Bought
$2.70M 168,750 at 16.00
9.6%
First buy on file
20 Oct 2020
Tester Jason E. Director · indirect
Bought
$50.00K 3,125 at 16.00
12.4%
First buy on file
Showing 1–23 of 23.