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Arrowhead Pharmaceuticals, Inc.

ARWR
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000879407

In the last 90 days, Arrowhead Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 2 sales; 503 institutions reported holding it in 13F filings for Q2 2026, worth $9.75B in total; no superinvestor holds it.

Key figures

Market capClose on Nov 9, 2026
$6.96B
Insider buysOpen market, last 90 days
0
Insider sellsLast 90 days, $1.19M in total
2
13F holdersQ2 2026, +71 vs. previous quarter
503
13F valueReported value at the end of Q2 2026
$9.75B
Superinvestors holdingAt the end of Q2 2026
0

Price chart

From SEC filings, in USD.

Revenue, FY2025
$829.4M
+23,258.2% year over year
Net income, FY2025
-$1.63M
No comparable prior period
Free cash flow, FY2025
$156.9M
No comparable prior period
Revenue, Q3 FY2026
$75.3M
+171.0% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Net loss for FY2025: $1.63M (0.2% of revenue).

Short interest

See short data

From FINRA, settlement date Oct 15, 2026.

Short interest
11.0M
Shares sold short
Change
+198.8K
+1.9% vs. previous
Days to cover
5.36
At average daily volume

Superinvestors holding ARWR, Q2 2026

Go to the superinvestors tab

No superinvestor reported holding ARWR at the end of Q2 2026.

Latest insider trades

See all insider trades

Open-market purchases and sales by Arrowhead Pharmaceuticals, Inc. insiders from Form 4, newest first.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 20, 2026 (view filing)5:25 PM ETAug 182 daysOlukotun Adeoye YDirectorSSale−2.00K$86.96−$173.9K−6.0%31.6K after
Aug 20, 2026 (view filing)5:22 PM ETAug 182 daysPerry Michael SDirectorSSale−11.6K$87.30−$1.01M−9.4%111.5K after
May 14, 2026 (view filing)May 122 daysLu HongboDirectorSSale−2.97K$76.88−$228.3K−5.4%52.0K after10b5-1
Apr 24, 2026 (view filing)Apr 231 dayHamilton James CChief Medical OfficerSSale−10.0K$75.00−$750.0K−4.2%227.0K after10b5-1
Apr 24, 2026 (view filing)Apr 222 daysApel Daniel JosephChief Financial OfficerSSale−13.1K$71.35−$934.3K−7.4%162.9K after3 lots10b5-1
Mar 9, 2026 (view filing)Mar 54 daysHamilton James CChief Medical OfficerSSale−10.0K$64.19−$641.9K−4.0%237.0K after10b5-1
Jan 5, 2026 (view filing)Jan 5Same dayHamilton James CChief Medical OfficerSSale−40.2K$63.11−$2.53M−18.9%172.0K after7 lots10b5-1
Jan 5, 2026 (view filing)Jan 5Same dayO'Brien PatrickCOOSSale−49.5K$63.11−$3.12M−9.4%474.9K after12 lots10b5-1
Jan 5, 2026 (view filing)Jan 23 daysAnzalone Christopher RichardChief Executive OfficerSSale−13.2K$66.10−$871.7K−0.3%3.79M after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 264 daysFerrari MauroDirectorSSale−7.53K$70.00−$527.1K−9.8%69.1K after10b5-1

Top 10 13F holders, Q2 2026

See all 503 holders

The largest institutional positions in Arrowhead Pharmaceuticals, Inc. at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding ARWR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.14,830,553$1.21B0.02%−3,330,966−18.3%Reduced
Avoro Capital Advisors LLC11,355,555$925.6M8.31%+655,556+6.1%Added
FMR LLC8,039,804$655.3M0.03%+773,152+10.6%Added
Vanguard Portfolio Management LLC6,351,355$517.7M0.02%−794,781−11.1%Reduced
Vanguard Capital Management LLC6,110,953$498.1M0.01%+78,537+1.3%Added
State Street Corp5,694,640$464.2M0.01%−801,490−12.3%Reduced
Norges Bank3,896,536$317.6M0.03%+3,896,536New
Invesco Ltd.3,883,976$316.6M0.03%+603,329+18.4%Added
Geode Capital Management, LLC3,530,612$298.8M0.02%−748,216−17.5%Reduced
Fred Alger Management, LLC3,301,919$269.1M0.90%−40,574−1.2%Reduced

Holders of 5% or more of ARWR

See all 4 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Arrowhead Pharmaceuticals, Inc..

Largest holders of ARWR from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A10.10%14.2M shares−2.10 ppfrom 12.20%Apr 23, 20254 filingsJul 27, 2026SEC
Avoro Capital Advisors LLC13G/A9.64%13.8M shares+1.34 ppfrom 8.30%Nov 14, 20244 filingsAug 14, 2026SEC
FMR LLC13G/A6.60%9.31M shares+1.40 ppfrom 5.20%May 6, 20262 filingsNov 5, 2026SEC
Vanguard Capital Management LLC13G5.05%7.08M sharesNewApr 29, 20261 filingApr 29, 2026SEC

1 member of Congress reported 1 trade in Arrowhead Pharmaceuticals, Inc. since 2020. Newest filings:

  1. Daniel S. Goldman

    House · NY · Feb 24, 2023

    Sell$1K-$15K