MP
Michael S Perry
Director

Michael S Perry insider trades: Arrowhead Pharmaceuticals (ARWR) stock buys and sales

Director, Arrowhead Pharmaceuticals Last trade Aug 18, 2026 54 Form 4 filings
$2.0M
Sold, last 12 months
2 sales
$0
Bought, last 12 months
0 buys
16
Open-market trades
since 2011
7
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Michael reports to the SEC

and 1 more company

Open-market buys and sales

16 trades reported on SEC Form 4, newest first

DateStockTypeValue
Aug 18, 2026ARWR↓ Sell$1.0M
Dec 5, 2025ARWR↓ Sell$992K
Nov 21, 2022RCEL↓ Sell$1.1M
Feb 24, 2022RCEL↓ Sell$94K
Jan 3, 2022ARWR↓ Sell10b5-1$291K
Sep 1, 2021RCEL↓ Sell$232K
Jun 2, 2021RCEL↓ Sell$399K
Jan 4, 2021ARWR↓ Sell$304K
Sep 16, 2020RCEL↓ Sell$1.3M
Sep 11, 2020RCEL↓ Sell$708K
May 12, 2020ARWR↓ Sell$1.3M
Sep 11, 2019ARWR↓ Sell$5.4M
Mar 22, 2018APHB↑ Buy$200K
Mar 27, 2012PARD↓ Sell$1K
Feb 16, 2012PARD↓ Sell$6K
Apr 13, 2011PARD↓ Sell$17K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other ARWR insiders

Open-market trades in the last 12 months

About Michael S Perry's insider trades

Michael S Perry is a director at Arrowhead Pharmaceuticals (ARWR). Since Apr 13, 2011, Michael has reported 1 open-market purchase worth $200K and 15 sales worth $13.2M on SEC Form 4. In the last 12 months: 2 sales ($2.0M).

1 sale (2% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.

Their filings also include grants and awards (38 filings), option exercises (5 filings), other transactions (1 filing). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ARWR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.