Insider trading

Period: 120 months Stock: ARWR Minimum amount: $1M × + 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.

63 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.

63 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.

63 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.

63 decisions over 120 months Remove this filter
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.
63 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
63 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.

63 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
18 Aug 2026
PERRY MICHAEL S Director
Sold at will
$1.01M 11,600 at 87.30
9.4%
Not planned
5 Jan 2026
Sold on a plan 12×
$3.12M 49,493 at 63.11
9.4%
Planned (10b5-1)
5 Jan 2026
Hamilton James C Chief Medical Officer
Sold on a plan 7×
$2.53M 40,164 at 63.11
18.9%
Planned (10b5-1)
29 Dec 2025
Anzalone Christopher Richard Chief Executive Officer
Sold on a plan 2×
$3.58M 51,726 at 69.13
1.3%
Planned (10b5-1)
17 Dec 2025
Anzalone Christopher Richard Chief Executive Officer
Sold at will 4×
$5.44M 85,000 at 64.04
2.2%
Not planned
16 Dec 2025
Anzalone Christopher Richard Chief Executive Officer
Sold at will 9×
$3.40M 54,298 at 62.58
1.4%
Not planned
15 Dec 2025
Anzalone Christopher Richard Chief Executive Officer
Sold at will 3×
$8.95M 130,000 at 68.85
3.2%
Not planned
4 Mar 2025
Anzalone Christopher Richard Chief Executive Officer
Sold on a plan
$2.27M 133,333 at 17.02
3.4%
Planned (10b5-1)
3 Mar 2025
Anzalone Christopher Richard Chief Executive Officer
Sold on a plan
$3.01M 166,667 at 18.03
4.1%
Planned (10b5-1)
6 Mar 2024
Myszkowski Kenneth Allen Chief Financial Officer
Sold at will
$1.41M 40,000 at 35.19
9.1%
Not planned
31 Jan 2024
Anzalone Christopher Richard Chief Executive Officer
Sold on a plan 2×
$1.86M 57,499 at 32.35
1.5%
Planned (10b5-1)
5 Jan 2024
Hamilton James C Chief Discovery/Trans Medicine
Sold on a plan 4×
$1.13M 32,143 at 35.18
12.8%
Planned (10b5-1)
18 Sep 2023
Anzalone Christopher Richard Chief Executive Officer
Sold at will 2×
$1.62M 57,755 at 28.12
1.5%
Not planned
4 May 2023
Anzalone Christopher Richard Chief Executive Officer
Sold at will 2×
$1.98M 50,000 at 39.52
1.3%
Not planned
3 May 2023
Anzalone Christopher Richard Chief Executive Officer
Sold at will
$2.15M 54,928 at 39.14
1.4%
Not planned
29 Dec 2022
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated
$1.23M 30,625 at 40.00
8.3%
11 Feb 2022
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 4×
$7.60M 146,388 at 51.91
3.5%
5 Jan 2022
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 4×
$2.47M 40,000 at 61.70
7.9%
5 Jan 2022
O'Brien Patrick General Counsel
Sold, plan not stated 5×
$2.01M 32,500 at 61.72
8.5%
4 Jan 2022
Hamilton James C Senior Vice President
Sold, plan not stated 5×
$1.27M 19,375 at 65.49
10.7%
15 Dec 2021
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 5×
$4.05M 60,000 at 67.56
1.8%
19 Nov 2021
San Martin Javier Chief Medical Officer
Sold, plan not stated 3×
$1.35M 19,500 at 69.31
14.9%
22 Oct 2021
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 2×
$3.28M 50,000 at 65.63
1.5%
8 Feb 2021
O'Brien Patrick General Counsel
Sold, plan not stated 4×
$7.96M 90,000 at 88.46
23.5%
7 Jan 2021
Hassard James Chief Commercial Officer
Sold, plan not stated
$1.17M 15,625 at 75.00
12.5%
6 Jan 2021
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 3×
$2.22M 30,625 at 72.44
6.3%
6 Jan 2021
O'Brien Patrick General Counsel
Sold, plan not stated 3×
$1.81M 25,000 at 72.41
7.9%
6 Jan 2021
Hamilton James C Senior Vice President
Sold, plan not stated 3×
$1.40M 19,375 at 72.48
12.4%
5 Jan 2021
Hamilton James C Senior Vice President
Sold, plan not stated 4×
$1.41M 19,375 at 72.53
11.1%
9 Dec 2020
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 4×
$2.67M 38,676 at 69.06
1.5%
8 Dec 2020
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated
$1.11M 16,324 at 67.97
0.6%
20 Nov 2020
Bradshaw Curt Chief Scientific Officer
Sold, plan not stated
$1.07M 15,625 at 68.73
100%
Sold half or more
19 Nov 2020
San Martin Javier Chief Medical Officer
Sold, plan not stated
$1.35M 19,500 at 69.39
13.0%
19 Nov 2020
Bradshaw Curt Chief Scientific Officer
Sold, plan not stated
$1.08M 15,625 at 69.39
50.0%
Sold half or more
9 Nov 2020
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 2×
$3.02M 43,505 at 69.37
9.2%
23 Oct 2020
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 2×
$5.82M 100,000 at 58.21
3.8%
20 Oct 2020
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated
$1.58M 29,166 at 54.04
6.4%
13 Aug 2020
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated
$2.07M 50,000 at 41.35
1.9%
25 Jun 2020
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 2×
$3.88M 100,000 at 38.81
3.7%
12 May 2020
PERRY MICHAEL S Director
Sold, plan not stated 2×
$1.29M 36,000 at 35.83
81.8%
Sold half or more
21 Jan 2020
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 6×
$1.99M 40,313 at 49.44
9.5%
6 Jan 2020
GIVEN BRUCE D Chief Operating Officer
Sold, plan not stated 3×
$2.14M 35,613 at 60.13
4.0%
6 Jan 2020
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 3×
$1.20M 20,000 at 60.11
4.9%
24 Dec 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated
$5.29M 83,333 at 63.50
4.4%
13 Dec 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 4×
$5.56M 83,333 at 66.73
4.2%
12 Dec 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 4×
$6.75M 100,000 at 67.50
4.8%
2 Dec 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 7×
$2.63M 37,967 at 69.15
1.8%
1 Nov 2019
Myszkowski Kenneth Allen Chief Financial Officer
Sold, plan not stated 2×
$1.55M 37,884 at 40.85
10.8%
10 Oct 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated
$1.79M 56,325 at 31.83
2.6%
24 Sep 2019
Anzalone Christopher Richard Chief Executive Officer
Sold, plan not stated 2×
$1.88M 66,645 at 28.20
3.0%
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