InsiderFlow

Arrowhead Pharmaceuticals, Inc.

$55.17+0.16 (+0.29%)

Prev Close

$55.01

Open

$55.86

High

$56.57

Low

$54.02

Volume

1.53M

Market Cap

$8.28B

P/E

36.06

Div Yield

Over the past 12 months, insider activity at Arrowhead Pharmaceuticals, Inc. (ARWR) has been exclusively selling, with 0 insider purchases totaling $0.00 and 21 insider sales totaling $43.98M. The most recent insider transaction was by Hamilton James C (officer: Chief Medical Officer), who sold $641.9K worth of shares on Mar 9, 2026. Arrowhead Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $8.28B.

Buys (12M)

0

$0.00

Sells (12M)

21

$43.98M

Net Activity

Net Seller

$43.98M

Active Insiders

8

last 12 mo

ARWR Price Chart

ARWR Insider Trading Activity

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 9, 2026Hamilton James Cofficer: Chief Medical OfficerSell10,000$64.19$641.9K236,958
Jan 5, 2026Anzalone Christopher Richarddirector, officer: Chief Executive OfficerSell13,187$66.10$871.7K3,798,510
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell80,328$63.11$5.07M207,497
Jan 5, 2026O'Brien Patrickofficer: COOSell48,593$63.12$3.07M520,033
Jan 2, 2026Anzalone Christopher RichardChief Executive OfficerSell13,187$66.10$871.7K0
Dec 31, 2025O'Brien PatrickCOOSell49,493$63.11$3.12M0
Dec 29, 2025Anzalone Christopher RichardChief Executive OfficerSell51,726$69.13$3.58M0
Dec 26, 2025Ferrari MauroDirectorSell7,530$70.00$527.1K0
Dec 19, 2025Anzalone Christopher RichardChief Executive OfficerSell26,031$68.04$1.77M0
Dec 19, 2025OLUKOTUN ADEOYE YDirectorSell10,000$67.66$676.6K0
Dec 19, 2025Vakiener VictoriaDirectorSell10,040$67.68$679.5K0
Dec 19, 2025Waddill William D.DirectorSell8,367$67.65$566.0K0
Dec 17, 2025Anzalone Christopher RichardChief Executive OfficerSell85,000$64.04$5.44M0
Dec 12, 2025Anzalone Christopher RichardChief Executive OfficerSell184,298$67.00$12.35M0
Dec 5, 2025PERRY MICHAEL SDirectorSell16,250$61.03$991.7K0
Nov 28, 2025Ferrari MauroDirectorSell8,750$56.39$493.4K0
Oct 1, 2025Hamilton James CChief Medical OfficerSell20,000$35.00$700.0K0
Sep 12, 2025Hamilton James CChief Medical OfficerSell15,000$30.00$450.0K0
Sep 2, 2025Hamilton James CChief Medical OfficerSell15,000$25.00$375.0K0
Aug 13, 2025Hamilton James CChief Medical OfficerSell10,000$20.00$200.0K0
Apr 9, 2025Anzalone Christopher RichardChief Executive OfficerSell141,122$10.87$1.53M0
Mar 13, 2025Anzalone Christopher RichardChief Executive OfficerSell51,425$15.07$775.0K0
Mar 3, 2025Anzalone Christopher RichardChief Executive OfficerSell300,000$17.58$5.27M0
Jan 23, 2025OLUKOTUN ADEOYE YDirectorSell959$21.00$20.1K0
Jan 4, 2025Hamilton James CChief Discovery/Trans MedicineSell32,729$19.82$648.8K0
Jan 4, 2025Myszkowski Kenneth AllenChief Financial OfficerSell45,167$19.77$893.1K0
Jan 4, 2025O'Brien PatrickCOO and General CounselSell37,184$19.80$736.1K0
Jan 2, 2025Anzalone Christopher RichardChief Executive OfficerSell11,520$19.05$219.5K0
Dec 27, 2024OLUKOTUN ADEOYE YDirectorSell2,850$20.00$57.0K0
Dec 23, 2024Anzalone Christopher RichardChief Executive OfficerSell12,563$19.59$246.1K0
Dec 18, 2024Anzalone Christopher RichardChief Executive OfficerSell26,712$21.24$567.5K0
Dec 16, 2024GIVEN DOUGLAS BDirectorSell5,547$21.91$121.6K0
Dec 16, 2024Vakiener VictoriaDirectorSell8,994$21.91$197.1K0
Dec 16, 2024Waddill William D.DirectorSell7,495$21.97$164.7K0
Jul 2, 2024Oliver TracieChief Commercial OfficerSell9,394$25.28$237.5K0
May 2, 2024Vakiener VictoriaDirectorSell1,799$23.31$41.9K0
Apr 1, 2024Hamilton James CChief Discovery/Trans MedicineSell6,000$28.03$168.2K0
Mar 18, 2024Lu HongboDirectorBuy3,000$27.66$83.0K0
Mar 6, 2024Myszkowski Kenneth AllenChief Financial OfficerSell40,000$35.19$1.41M0
Jan 31, 2024Anzalone Christopher RichardChief Executive OfficerSell57,499$32.35$1.86M0
Jan 12, 2024Hamilton James CChief Discovery/Trans MedicineSell7,940$36.89$292.9K0
Jan 11, 2024Ferrari MauroDirectorSell3,147$38.06$119.8K0
Jan 11, 2024GIVEN DOUGLAS BDirectorSell2,911$38.06$110.8K0
Jan 11, 2024Vakiener VictoriaDirectorSell4,720$38.10$179.8K0
Jan 11, 2024Waddill William D.DirectorSell3,934$38.07$149.8K0
Jan 4, 2024Myszkowski Kenneth AllenChief Financial OfficerSell16,104$35.27$567.9K0
Jan 4, 2024Oliver TracieChief Commercial OfficerSell74$33.89$2.5K0
Jan 4, 2024San Martin JavierChief Medical OfficerSell8,303$35.26$292.8K0
Jan 3, 2024Hamilton James CInsiderSell38,443$34.69$1.33M0
Jan 3, 2024O'Brien PatrickCOO and General CounselSell33,190$34.36$1.14M0
Jan 2, 2024Anzalone Christopher RichardChief Executive OfficerSell9,952$31.01$308.6K0
Dec 20, 2023Anzalone Christopher RichardChief Executive OfficerSell12,000$28.54$342.5K0
Nov 20, 2023San Martin JavierChief Medical OfficerSell19,700$28.80$567.3K0
Oct 25, 2023Anzalone Christopher RichardChief Executive OfficerSell24,338$24.21$589.2K0
Sep 28, 2023Vakiener VictoriaDirectorSell1,550$26.33$40.8K0
Sep 18, 2023Anzalone Christopher RichardChief Executive OfficerSell57,755$28.12$1.62M0
Jul 3, 2023Oliver TracieChief Commercial OfficerSell8,925$35.31$315.1K0
Jun 30, 2023Hamilton James CInsiderSell3,000$35.53$106.6K0
Jun 27, 2023Myszkowski Kenneth AllenChief Financial OfficerSell15,000$36.20$543.0K0
May 5, 2023GIVEN DOUGLAS BDirectorSell6,500$40.90$265.9K0
May 3, 2023Anzalone Christopher RichardChief Executive OfficerSell104,928$39.32$4.13M0
Mar 3, 2023OLUKOTUN ADEOYE YDirectorSell11,350$32.65$370.6K0
Feb 27, 2023GIVEN DOUGLAS BDirectorSell875$32.62$28.5K0
Jan 9, 2023Waddill William D.DirectorSell3,200$30.00$96.0K0
Jan 5, 2023Hamilton James CInsiderSell13,803$37.40$516.2K0
Jan 5, 2023O'Brien PatrickCOO and General CounselSell15,000$37.39$560.9K0
Jan 3, 2023Hamilton James CInsiderSell10,338$38.38$396.7K0
Jan 3, 2023O'Brien PatrickCOO and General CounselSell17,500$38.33$670.8K0
Dec 29, 2022Myszkowski Kenneth AllenChief Financial OfficerSell30,625$40.00$1.23M0
Nov 21, 2022San Martin JavierChief Medical OfficerSell19,500$29.99$584.7K0
Feb 11, 2022Anzalone Christopher RichardChief Executive OfficerSell146,388$51.91$7.60M0
Jan 5, 2022Myszkowski Kenneth AllenChief Financial OfficerSell40,000$61.70$2.47M0
Jan 5, 2022O'Brien PatrickGeneral CounselSell32,500$61.72$2.01M0
Jan 4, 2022Hamilton James CInsiderSell25,625$64.57$1.65M0
Jan 3, 2022De Backer MarianneDirectorSell4,500$64.71$291.2K0
Jan 3, 2022OLUKOTUN ADEOYE YDirectorSell4,050$64.75$262.2K0
Jan 3, 2022PERRY MICHAEL SDirectorSell4,500$64.71$291.2K0
Jan 3, 2022Waddill William D.DirectorSell4,500$64.72$291.2K0
Dec 28, 2021Ferrari MauroDirectorSell3,400$66.82$227.2K0
Dec 28, 2021GIVEN DOUGLAS BDirectorBuy655$66.37$43.5K0
Dec 15, 2021Anzalone Christopher RichardChief Executive OfficerSell60,000$67.56$4.05M0
Nov 19, 2021San Martin JavierChief Medical OfficerSell19,500$69.31$1.35M0
Oct 20, 2021Anzalone Christopher RichardChief Executive OfficerSell65,000$65.77$4.27M0
Sep 13, 2021OLUKOTUN ADEOYE YDirectorSell5,000$63.76$318.8K0
Sep 9, 2021GIVEN DOUGLAS BDirectorSell5,000$65.24$326.2K0
Jun 24, 2021De Backer MarianneDirectorSell5,000$89.85$449.3K0
Jun 22, 2021GIVEN DOUGLAS BDirectorSell4,500$89.21$401.4K0
Jun 22, 2021Hassard JamesChief Commercial OfficerSell3,625$89.22$323.4K0
Feb 22, 2021GIVEN DOUGLAS BDirectorSell1,125$88.73$99.8K0

ARWR Insider Buying Activity

The following table shows recent insider purchases of Arrowhead Pharmaceuticals, Inc. (ARWR) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 18, 2024Lu HongboDirectorBuy3,000$27.66$83.0K0
Dec 28, 2021GIVEN DOUGLAS BDirectorBuy655$66.37$43.5K0

ARWR Insider Selling Activity

The following table shows recent insider sales of Arrowhead Pharmaceuticals, Inc. (ARWR) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 9, 2026Hamilton James Cofficer: Chief Medical OfficerSell10,000$64.19$641.9K236,958
Jan 5, 2026Anzalone Christopher Richarddirector, officer: Chief Executive OfficerSell13,187$66.10$871.7K3,798,510
Jan 5, 2026Hamilton James Cofficer: Chief Medical OfficerSell80,328$63.11$5.07M207,497
Jan 5, 2026O'Brien Patrickofficer: COOSell48,593$63.12$3.07M520,033
Jan 2, 2026Anzalone Christopher RichardChief Executive OfficerSell13,187$66.10$871.7K0
Dec 31, 2025O'Brien PatrickCOOSell49,493$63.11$3.12M0
Dec 29, 2025Anzalone Christopher RichardChief Executive OfficerSell51,726$69.13$3.58M0
Dec 26, 2025Ferrari MauroDirectorSell7,530$70.00$527.1K0
Dec 19, 2025Anzalone Christopher RichardChief Executive OfficerSell26,031$68.04$1.77M0
Dec 19, 2025OLUKOTUN ADEOYE YDirectorSell10,000$67.66$676.6K0
Dec 19, 2025Vakiener VictoriaDirectorSell10,040$67.68$679.5K0
Dec 19, 2025Waddill William D.DirectorSell8,367$67.65$566.0K0
Dec 17, 2025Anzalone Christopher RichardChief Executive OfficerSell85,000$64.04$5.44M0
Dec 12, 2025Anzalone Christopher RichardChief Executive OfficerSell184,298$67.00$12.35M0
Dec 5, 2025PERRY MICHAEL SDirectorSell16,250$61.03$991.7K0
Nov 28, 2025Ferrari MauroDirectorSell8,750$56.39$493.4K0
Oct 1, 2025Hamilton James CChief Medical OfficerSell20,000$35.00$700.0K0
Sep 12, 2025Hamilton James CChief Medical OfficerSell15,000$30.00$450.0K0
Sep 2, 2025Hamilton James CChief Medical OfficerSell15,000$25.00$375.0K0
Aug 13, 2025Hamilton James CChief Medical OfficerSell10,000$20.00$200.0K0
Apr 9, 2025Anzalone Christopher RichardChief Executive OfficerSell141,122$10.87$1.53M0
Mar 13, 2025Anzalone Christopher RichardChief Executive OfficerSell51,425$15.07$775.0K0
Mar 3, 2025Anzalone Christopher RichardChief Executive OfficerSell300,000$17.58$5.27M0
Jan 23, 2025OLUKOTUN ADEOYE YDirectorSell959$21.00$20.1K0
Jan 4, 2025Hamilton James CChief Discovery/Trans MedicineSell32,729$19.82$648.8K0
Jan 4, 2025Myszkowski Kenneth AllenChief Financial OfficerSell45,167$19.77$893.1K0
Jan 4, 2025O'Brien PatrickCOO and General CounselSell37,184$19.80$736.1K0
Jan 2, 2025Anzalone Christopher RichardChief Executive OfficerSell11,520$19.05$219.5K0
Dec 27, 2024OLUKOTUN ADEOYE YDirectorSell2,850$20.00$57.0K0
Dec 23, 2024Anzalone Christopher RichardChief Executive OfficerSell12,563$19.59$246.1K0
Dec 18, 2024Anzalone Christopher RichardChief Executive OfficerSell26,712$21.24$567.5K0
Dec 16, 2024GIVEN DOUGLAS BDirectorSell5,547$21.91$121.6K0
Dec 16, 2024Vakiener VictoriaDirectorSell8,994$21.91$197.1K0
Dec 16, 2024Waddill William D.DirectorSell7,495$21.97$164.7K0
Jul 2, 2024Oliver TracieChief Commercial OfficerSell9,394$25.28$237.5K0
May 2, 2024Vakiener VictoriaDirectorSell1,799$23.31$41.9K0
Apr 1, 2024Hamilton James CChief Discovery/Trans MedicineSell6,000$28.03$168.2K0
Mar 6, 2024Myszkowski Kenneth AllenChief Financial OfficerSell40,000$35.19$1.41M0
Jan 31, 2024Anzalone Christopher RichardChief Executive OfficerSell57,499$32.35$1.86M0
Jan 12, 2024Hamilton James CChief Discovery/Trans MedicineSell7,940$36.89$292.9K0
Jan 11, 2024Ferrari MauroDirectorSell3,147$38.06$119.8K0
Jan 11, 2024GIVEN DOUGLAS BDirectorSell2,911$38.06$110.8K0
Jan 11, 2024Vakiener VictoriaDirectorSell4,720$38.10$179.8K0
Jan 11, 2024Waddill William D.DirectorSell3,934$38.07$149.8K0
Jan 4, 2024Myszkowski Kenneth AllenChief Financial OfficerSell16,104$35.27$567.9K0
Jan 4, 2024Oliver TracieChief Commercial OfficerSell74$33.89$2.5K0
Jan 4, 2024San Martin JavierChief Medical OfficerSell8,303$35.26$292.8K0
Jan 3, 2024Hamilton James CInsiderSell38,443$34.69$1.33M0
Jan 3, 2024O'Brien PatrickCOO and General CounselSell33,190$34.36$1.14M0
Jan 2, 2024Anzalone Christopher RichardChief Executive OfficerSell9,952$31.01$308.6K0
Dec 20, 2023Anzalone Christopher RichardChief Executive OfficerSell12,000$28.54$342.5K0
Nov 20, 2023San Martin JavierChief Medical OfficerSell19,700$28.80$567.3K0
Oct 25, 2023Anzalone Christopher RichardChief Executive OfficerSell24,338$24.21$589.2K0
Sep 28, 2023Vakiener VictoriaDirectorSell1,550$26.33$40.8K0
Sep 18, 2023Anzalone Christopher RichardChief Executive OfficerSell57,755$28.12$1.62M0
Jul 3, 2023Oliver TracieChief Commercial OfficerSell8,925$35.31$315.1K0
Jun 30, 2023Hamilton James CInsiderSell3,000$35.53$106.6K0
Jun 27, 2023Myszkowski Kenneth AllenChief Financial OfficerSell15,000$36.20$543.0K0
May 5, 2023GIVEN DOUGLAS BDirectorSell6,500$40.90$265.9K0
May 3, 2023Anzalone Christopher RichardChief Executive OfficerSell104,928$39.32$4.13M0
Mar 3, 2023OLUKOTUN ADEOYE YDirectorSell11,350$32.65$370.6K0
Feb 27, 2023GIVEN DOUGLAS BDirectorSell875$32.62$28.5K0
Jan 9, 2023Waddill William D.DirectorSell3,200$30.00$96.0K0
Jan 5, 2023Hamilton James CInsiderSell13,803$37.40$516.2K0
Jan 5, 2023O'Brien PatrickCOO and General CounselSell15,000$37.39$560.9K0
Jan 3, 2023Hamilton James CInsiderSell10,338$38.38$396.7K0
Jan 3, 2023O'Brien PatrickCOO and General CounselSell17,500$38.33$670.8K0
Dec 29, 2022Myszkowski Kenneth AllenChief Financial OfficerSell30,625$40.00$1.23M0
Nov 21, 2022San Martin JavierChief Medical OfficerSell19,500$29.99$584.7K0
Feb 11, 2022Anzalone Christopher RichardChief Executive OfficerSell146,388$51.91$7.60M0
Jan 5, 2022Myszkowski Kenneth AllenChief Financial OfficerSell40,000$61.70$2.47M0
Jan 5, 2022O'Brien PatrickGeneral CounselSell32,500$61.72$2.01M0
Jan 4, 2022Hamilton James CInsiderSell25,625$64.57$1.65M0
Jan 3, 2022De Backer MarianneDirectorSell4,500$64.71$291.2K0
Jan 3, 2022OLUKOTUN ADEOYE YDirectorSell4,050$64.75$262.2K0
Jan 3, 2022PERRY MICHAEL SDirectorSell4,500$64.71$291.2K0
Jan 3, 2022Waddill William D.DirectorSell4,500$64.72$291.2K0
Dec 28, 2021Ferrari MauroDirectorSell3,400$66.82$227.2K0
Dec 15, 2021Anzalone Christopher RichardChief Executive OfficerSell60,000$67.56$4.05M0
Nov 19, 2021San Martin JavierChief Medical OfficerSell19,500$69.31$1.35M0
Oct 20, 2021Anzalone Christopher RichardChief Executive OfficerSell65,000$65.77$4.27M0
Sep 13, 2021OLUKOTUN ADEOYE YDirectorSell5,000$63.76$318.8K0
Sep 9, 2021GIVEN DOUGLAS BDirectorSell5,000$65.24$326.2K0
Jun 24, 2021De Backer MarianneDirectorSell5,000$89.85$449.3K0
Jun 22, 2021GIVEN DOUGLAS BDirectorSell4,500$89.21$401.4K0
Jun 22, 2021Hassard JamesChief Commercial OfficerSell3,625$89.22$323.4K0
Feb 22, 2021GIVEN DOUGLAS BDirectorSell1,125$88.73$99.8K0

ARWR Insiders

Hamilton James C

officer: Chief Medical Officer

Sold $3.18M
8 tradesLast: Mar 5, 2026
Hamilton James C

Chief Medical Officer

Sold $4.26M
12 tradesLast: Jan 5, 2026
O'Brien Patrick

COO

Sold $3.12M
12 tradesLast: Jan 5, 2026
O'Brien Patrick

officer: COO

Sold $3.07M
11 tradesLast: Jan 5, 2026
Anzalone Christopher Richard

Chief Executive Officer

Sold $57.40M
62 tradesLast: Jan 2, 2026
Anzalone Christopher Richard

director, officer: Chief Executive Officer

Sold $871.7K
2 tradesLast: Jan 2, 2026
Ferrari Mauro

Director

Sold $1.37M
5 tradesLast: Dec 26, 2025
OLUKOTUN ADEOYE Y

Director

Sold $1.71M
11 tradesLast: Dec 19, 2025
Vakiener Victoria

Director

Sold $1.14M
9 tradesLast: Dec 19, 2025
Waddill William D.

Director

Sold $1.27M
11 tradesLast: Dec 19, 2025
PERRY MICHAEL S

Director

Sold $1.28M
4 tradesLast: Dec 5, 2025
Myszkowski Kenneth Allen

Chief Financial Officer

Sold $7.10M
14 tradesLast: Jan 7, 2025
O'Brien Patrick

COO and General Counsel

Sold $3.11M
21 tradesLast: Jan 7, 2025
Hamilton James C

Chief Discovery/Trans Medicine

Sold $1.11M
5 tradesLast: Jan 6, 2025
GIVEN DOUGLAS B

Director

Bought $43.5KSold $1.35M
10 tradesLast: Dec 17, 2024
Oliver Tracie

Chief Commercial Officer

Sold $555.1K
3 tradesLast: Jul 2, 2024
Lu Hongbo

Director

Bought $83.0K
3 tradesLast: Mar 20, 2024
Hamilton James C

Insider

Sold $4.01M
28 tradesLast: Jan 5, 2024
San Martin Javier

Chief Medical Officer

Sold $2.80M
10 tradesLast: Jan 5, 2024
O'Brien Patrick

General Counsel

Sold $2.01M
5 tradesLast: Jan 5, 2022
De Backer Marianne

Director

Sold $740.4K
4 tradesLast: Jan 3, 2022
Hassard James

Chief Commercial Officer

Sold $323.4K
1 tradesLast: Jun 22, 2021