Insider trading

Period: 120 months Stock: ATRA 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.

59 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.

59 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.

59 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.

59 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.
59 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
59 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.

59 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Sep 2026
Cherry Brian N Director
Bought
$999.99K 104,166 at 9.60
167%
First buy on file
17 Aug 2026
Nguyen AnhCo President and CEO
Sold at will
$40.88K 5,062 at 8.08
3.7%
Not planned
18 May 2026
Nguyen AnhCo President and CEO
Sold at will
$47.84K 5,241 at 9.13
3.7%
Not planned
18 May 2026
Grant-Huerta Yanina Chief Accounting Officer
Sold at will
$22.04K 2,414 at 9.13
4.6%
Not planned
7 May 2026
EcoR1 Capital, LLC 10% owner · indirect
Bought
$4.74M 507,407 at 9.35
48.6%
First buy on file
7 May 2026
Panacea Innovation Ltd 10% owner · indirect
Sold at will
$3.17M 313,446 at 10.10
23.7%
Not planned
2 Mar 2026
Nguyen AnhCo President and CEO
Sold at will 4×
$15.24K 2,996 at 5.09
4.6%
Not planned
2 Mar 2026
Grant-Huerta Yanina Chief Accounting Officer
Sold at will 4×
$10.69K 2,104 at 5.08
6.2%
Not planned
12 Jan 2026
Panacea Innovation Ltd 10% owner · indirect
Sold at will
$489.02K 80,554 at 6.07
5.7%
Not planned
17 Nov 2025
Nguyen AnhCo President and CEO
Sold at will 2×
$38.44K 2,915 at 13.19
4.3%
Not planned
17 Nov 2025
Grant-Huerta Yanina Chief Accounting Officer
Sold at will 3×
$23.79K 1,804 at 13.19
5.1%
Not planned
18 Aug 2025
Nguyen AnhCo President and CEO
Sold at will 3×
$34.36K 2,958 at 11.62
4.2%
Not planned
18 Aug 2025
Grant-Huerta Yanina Chief Accounting Officer
Sold at will 3×
$21.01K 1,809 at 11.61
4.9%
Not planned
15 Aug 2025
Panacea Innovation Ltd 10% owner · indirect
Bought
$670.42K 55,000 at 12.19
4.1%
Largest buy in 3 yrs
17 Jul 2025
Panacea Innovation Ltd 10% owner · indirect
Bought
$186.37K 19,335 at 9.64
1.5%
First buy on file
16 May 2025
Nguyen AnhCo President and CEO
Sold at will
$22.16K 3,276 at 6.76
4.4%
Not planned
16 May 2025
Grant-Huerta Yanina Chief Accounting Officer
Sold at will
$15.00K 2,218 at 6.76
5.6%
Not planned
3 Mar 2025
Nguyen AnhCo President and CEO
Sold at will
$23.31K 3,331 at 7.00
4.3%
Not planned
3 Mar 2025
Hyllengren Eric J EVP, CFO and COO
Sold at will
$8.47K 1,211 at 7.00
2.1%
Not planned
3 Mar 2025
Henrich Jill EVP, Chief Regulatory Officer
Sold at will
$7.41K 1,059 at 7.00
5.4%
Not planned
18 Nov 2024
Nguyen AnhCo President and CEO
Sold at will
$18.63K 1,664 at 11.20
2.1%
Not planned
18 Nov 2024
Hyllengren Eric J EVP, CFO and COO
Sold at will
$15.27K 1,364 at 11.20
5.5%
Not planned
18 Nov 2024
Henrich Jill EVP, Chief Regulatory Officer
Sold at will
$11.20K 1,000 at 11.20
4.9%
Not planned
16 Aug 2024
Touchon Pascal President and CEO
Sold at will 2×
$20.14K 3,038 at 6.63
4.2%
Not planned
16 Aug 2024
Nguyen AnhCo EVP, Chief Sci. & Tech Officer
Sold at will 3×
$12.07K 1,821 at 6.63
5.1%
Not planned
16 Aug 2024
Murugan Amar EVP, Chief Legal Officer
Sold at will 3×
$7.68K 1,158 at 6.63
4.1%
Not planned
16 Aug 2024
Sold at will 2×
$7.09K 1,070 at 6.63
4.1%
Not planned
16 Aug 2024
Henrich Jill EVP, Global Head RA & Quality
Sold at will 2×
$6.38K 963 at 6.63
4.5%
Not planned
16 May 2024
Touchon Pascal President and CEO
Sold at will
$50.29K 81,506 at 0.62
4.3%
Not planned
16 May 2024
Nguyen AnhCo EVP, Chief Sci. & Tech Officer
Sold at will
$26.47K 42,899 at 0.62
4.6%
Not planned
16 May 2024
Murugan Amar EVP, Chief Legal Officer
Sold at will
$19.99K 32,401 at 0.62
4.5%
Not planned
16 May 2024
Sold at will
$17.68K 28,648 at 0.62
4.2%
Not planned
16 May 2024
Henrich Jill EVP, Global Head RA & Quality
Sold at will
$15.89K 25,750 at 0.62
4.6%
Not planned
4 Mar 2024
Touchon Pascal President and CEO
Sold at will
$17.89K 24,844 at 0.72
1.3%
Not planned
4 Mar 2024
Nguyen AnhCo EVP, Chief Sci. & Tech Officer
Sold at will
$7.74K 10,746 at 0.72
1.1%
Not planned
4 Mar 2024
Murugan Amar EVP, Chief Legal Officer
Sold at will
$7.23K 10,044 at 0.72
1.4%
Not planned
4 Mar 2024
Sold at will 2×
$4.81K 6,679 at 0.72
1.0%
Not planned
4 Mar 2024
Henrich Jill EVP, Global Head RA & Quality
Sold at will
$2.79K 3,879 at 0.72
0.7%
Not planned
16 Nov 2023
Touchon Pascal President and CEO
Sold at will
$7.94K 20,409 at 0.39
3.0%
Not planned
16 Nov 2023
Joshi Manher EVP, Chief Medical Officer
Sold at will
$4.78K 12,287 at 0.39
6.7%
Not planned
16 Nov 2023
Sold at will
$4.65K 11,958 at 0.39
5.5%
Not planned
16 Nov 2023
Nguyen AnhCo EVP, Chief Sci. & Tech Officer
Sold at will
$3.44K 8,856 at 0.39
3.1%
Not planned
16 Nov 2023
Murugan Amar EVP, Chief Legal Officer
Sold at will
$3.23K 8,307 at 0.39
3.1%
Not planned
16 Nov 2023
Henrich Jill EVP, Global Head RA & Quality
Sold at will
$1.27K 3,267 at 0.39
3.0%
Not planned
14 Nov 2023
Bought
$28.19K 90,980 at 0.31
24.7%
+25% of stake
13 Nov 2023
Bought
$40.03K 179,020 at 0.22
94.5%
First buy on file
10 Nov 2023
DOBMEIER ERIC Director
Bought
$101.34K 446,825 at 0.23
384%
First buy on file
10 Nov 2023
HEIDEN WILLIAM K Director
Bought
$25.33K 100,000 at 0.25
91.7%
First buy on file
16 Aug 2023
Touchon Pascal President and CEO
Sold at will 2×
$50.83K 30,766 at 1.65
4.4%
Not planned
16 Aug 2023
Nguyen AnhCo EVP, Chief Sci. & Tech Officer
Sold at will 2×
$25.00K 15,126 at 1.65
5.0%
Not planned
Showing 1–50 of 59. Page 1 of 2 Older →