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Home›ARWR›Insider trades
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Insider trading · SEC Form 4

Arrowhead Pharmaceuticals Inc (ARWR) insider trading — SEC Form 4 history

As of the latest Form 4 filed Jun 17, 2026.

Our verdictHold→

What Arrowhead Pharmaceuticals Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.

Insider buys · 12m
0
Insider sells · 12m
62
Distinct insiders · 12m
12
Last sale
May 14, 2026
60 days ago
Bought · 12m
—
Sold · 12m
$36.2M
Net disclosed value · 12m
−$36.2M

Insider buying vs selling

Buy / sell pressure · 12m
by trade count
0 up62 down
Disclosed value by month
BoughtSold
$50.0M0$50.0MDec '25Feb '26Apr '26Jul '26

Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.

Form 4 transactions

Newest filing first — the 86 most recent filings for ARWR.

Form 4 insider transactions for ARWR
FiledTrade dateInsiderTransactionSharesPriceValue10b5-1Filing
2026-06-172026-06-15
Cohen Matthew Gregory
Director
AAward+11.9K$0.00$0.00NoForm 4 ↗
2026-05-142026-05-12
Lu Hongbo
Director
SSale−2.97K$76.88$228KYes (planned)Form 4 ↗
2026-04-242026-04-23
Hamilton James C
Chief Medical Officer
SSale−10.0K$75.00$750KYes (planned)Form 4 ↗
2026-04-242026-04-22
Apel Daniel Joseph
Chief Financial Officer
SSale−8.73K$71.92$628KYes (planned)Form 4 ↗
2026-04-242026-04-22Apel Daniel Joseph, Chief Financial Officer〃SSale−1.16K$70.45$81.5KYes (planned)Form 4 ↗
2026-04-242026-04-22Apel Daniel Joseph, Chief Financial Officer〃SSale−3.21K$70.11$225KYes (planned)Form 4 ↗
2026-03-092026-03-05
Hamilton James C
Chief Medical Officer
SSale−10.0K$64.19$642KYes (planned)Form 4 ↗
2026-01-082026-01-06
Apel Daniel Joseph
Chief Financial Officer
AAward+75.0K$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06
Hamilton James C
Chief Medical Officer
AAward+75.0K$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06
O'Brien Patrick
COO
AAward+75.0K$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06O'Brien Patrick, COO〃GGift−440.00$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06O'Brien Patrick, COO〃GGift−440.00$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06O'Brien Patrick, COO〃GGift−540.00$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06O'Brien Patrick, COO〃GGift−540.00$0.00$0.00NoForm 4 ↗
2026-01-082026-01-06O'Brien Patrick, COO〃GGift−540.00$0.00$0.00NoForm 4 ↗
2026-01-052026-01-05
Hamilton James C
Chief Medical Officer
SSale−309.00$68.00$21.0KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−437.00$65.97$28.8KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−1.20K$64.49$77.4KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−12.7K$63.95$813KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−14.8K$63.01$932KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−6.09K$62.28$379KYes (planned)Form 4 ↗
2026-01-052026-01-05Hamilton James C, Chief Medical Officer〃SSale−4.63K$61.24$283KYes (planned)Form 4 ↗
2026-01-052026-01-05
O'Brien Patrick
COO
SSale−46.00$68.00$3.13KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−2.34K$64.04$150KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−5.87K$62.91$369KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−900.00$62.25$56.0KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−600.00$61.12$36.7KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−313.00$68.00$21.3KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−900.00$66.01$59.4KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−2.70K$64.44$174KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−11.8K$63.84$756KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−13.5K$62.96$847KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−6.16K$62.23$384KYes (planned)Form 4 ↗
2026-01-052026-01-05O'Brien Patrick, COO〃SSale−4.37K$61.20$267KYes (planned)Form 4 ↗
2026-01-052026-01-02
Anzalone Christopher Richard
Chief Executive Officer
SSale−5.77K$66.39$383KYes (planned)Form 4 ↗
2026-01-052026-01-02Anzalone Christopher Richard, Chief Executive Officer〃SSale−7.42K$65.88$489KYes (planned)Form 4 ↗
2026-01-052025-12-31
O'Brien Patrick
COO
GGift−560.00$0.00$0.00Yes (planned)Form 4 ↗
2026-01-052025-12-31O'Brien Patrick, COO〃GGift−560.00$0.00$0.00Yes (planned)Form 4 ↗
2026-01-052025-12-31O'Brien Patrick, COO〃GGift−560.00$0.00$0.00Yes (planned)Form 4 ↗
2026-01-052025-12-31O'Brien Patrick, COO〃GGift−560.00$0.00$0.00Yes (planned)Form 4 ↗
2026-01-052025-12-31O'Brien Patrick, COO〃GGift−560.00$0.00$0.00Yes (planned)Form 4 ↗
2025-12-302025-12-29
Anzalone Christopher Richard
Chief Executive Officer
SSale−16.5K$68.69$1.14MYes (planned)Form 4 ↗
2025-12-302025-12-29Anzalone Christopher Richard, Chief Executive Officer〃SSale−35.2K$69.33$2.44MYes (planned)Form 4 ↗
2025-12-302025-12-29Anzalone Christopher Richard, Chief Executive Officer〃MExercise+16.5K$6.15$102KYes (planned)Form 4 ↗
2025-12-302025-12-29Anzalone Christopher Richard, Chief Executive Officer〃MExercise+35.2K$6.15$216KYes (planned)Form 4 ↗
2025-12-302025-12-26
Ferrari Mauro
Director
SSale−7.53K$70.00$527KYes (planned)Form 4 ↗
2025-12-232025-12-22
Anzalone Christopher Richard
Chief Executive Officer
SSale−2.57K$68.85$177KYes (planned)Form 4 ↗
2025-12-232025-12-22Anzalone Christopher Richard, Chief Executive Officer〃SSale−10.0K$68.33$684KYes (planned)Form 4 ↗
2025-12-232025-12-19
Vakiener Victoria
Director
SSale−1.96K$68.39$134KYes (planned)Form 4 ↗
2025-12-232025-12-19Vakiener Victoria, Director〃SSale−5.28K$67.97$359KYes (planned)Form 4 ↗
2025-12-232025-12-19Vakiener Victoria, Director〃SSale−2.80K$66.63$186KYes (planned)Form 4 ↗
2025-12-232025-12-19
Waddill William D.
Director
SSale−500.00$68.53$34.3KYes (planned)Form 4 ↗
2025-12-232025-12-19Waddill William D., Director〃SSale−5.45K$68.01$371KYes (planned)Form 4 ↗
2025-12-232025-12-19Waddill William D., Director〃SSale−2.42K$66.66$161KYes (planned)Form 4 ↗
2025-12-232025-12-19
Anzalone Christopher Richard
Chief Executive Officer
SSale−1.32K$68.48$90.3KYes (planned)Form 4 ↗
2025-12-232025-12-19Anzalone Christopher Richard, Chief Executive Officer〃SSale−8.15K$68.01$554KYes (planned)Form 4 ↗
2025-12-232025-12-19Anzalone Christopher Richard, Chief Executive Officer〃SSale−3.98K$66.67$265KYes (planned)Form 4 ↗
2025-12-232025-12-19
OLUKOTUN ADEOYE Y
Director
SSale−827.00$68.48$56.6KYes (planned)Form 4 ↗
2025-12-232025-12-19OLUKOTUN ADEOYE Y, Director〃SSale−6.08K$68.04$414KYes (planned)Form 4 ↗
2025-12-232025-12-19OLUKOTUN ADEOYE Y, Director〃SSale−3.09K$66.70$206KYes (planned)Form 4 ↗
2025-12-192025-12-17
Anzalone Christopher Richard
Chief Executive Officer
SSale−1.98K$66.30$131KNoForm 4 ↗
2025-12-192025-12-17Anzalone Christopher Richard, Chief Executive Officer〃SSale−982.00$65.53$64.4KNoForm 4 ↗
2025-12-192025-12-17Anzalone Christopher Richard, Chief Executive Officer〃SSale−35.8K$64.51$2.31MNoForm 4 ↗
2025-12-192025-12-17Anzalone Christopher Richard, Chief Executive Officer〃SSale−46.3K$63.55$2.94MNoForm 4 ↗
2025-12-182025-12-16
Vakiener Victoria
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
Lu Hongbo
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
Waddill William D.
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
Ferrari Mauro
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
PERRY MICHAEL S
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
OLUKOTUN ADEOYE Y
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-182025-12-16
INGRAM DOUGLAS S
Director
AAward+7.82K$0.00$0.00NoForm 4 ↗
2025-12-162025-12-16
Anzalone Christopher Richard
Chief Executive Officer
SSale−3.22K$67.87$219KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−166.00$66.77$11.1KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−1.30K$65.77$85.5KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−1.00K$64.96$65.0KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−6.66K$64.29$428KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−8.48K$62.94$533KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−14.1K$62.12$876KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−11.0K$61.25$671KNoForm 4 ↗
2025-12-162025-12-16Anzalone Christopher Richard, Chief Executive Officer〃SSale−8.42K$60.51$509KNoForm 4 ↗
2025-12-162025-12-15Anzalone Christopher Richard, Chief Executive Officer〃SSale−8.15K$69.96$570KNoForm 4 ↗
2025-12-162025-12-15Anzalone Christopher Richard, Chief Executive Officer〃SSale−21.3K$69.28$1.48MNoForm 4 ↗
2025-12-162025-12-15Anzalone Christopher Richard, Chief Executive Officer〃SSale−101K$68.67$6.90MNoForm 4 ↗
2025-12-162025-12-12Anzalone Christopher Richard, Chief Executive Officer〃AAward+180K$0.00$0.00NoForm 4 ↗
2025-12-092025-12-05
PERRY MICHAEL S
Director
SSale−16.3K$61.03$992KNoForm 4 ↗
2025-12-012025-11-28
Ferrari Mauro
Director
SSale−8.75K$56.39$493KNoForm 4 ↗

How to read a Form 4

Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.

The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.

One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.

See also ARWR’s full analysis or the market-wide insider trading feed. The tabs above jump to ARWR’s other SEC data.

Source: SEC Form 4 filings for ARWR, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.

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NVDA$203.53▼3.52%AAPL$317.31▲0.63%GOOGL$352.51▼1.31%GOOG$350.67▼1.23%MSFT$390.99▲1.53%AMZN$247.31▲0.80%TSM$421.58▼2.89%SPCX$139.14▼4.24%AVGO$384.05▼3.98%META$656.73▼1.86%TSLA$394.76▼3.19%MU$937.00▼4.32%BRK-B$496.85▲0.64%BRK-A$744,850.01▲0.69%LLY$1,181.87▼0.56%AMD$534.39▼4.21%WMT$114.78▲0.77%JPM$334.53▼0.58%ASML$1,726.04▼3.97%V$357.75▲2.52%JNJ$257.77▲0.31%XOM$144.51▲4.05%INTC$103.12▼6.12%AMAT$575.39▼4.50%CSCO$119.25▼1.70%MA$537.70▲2.08%CAT$931.47▼2.20%ABBV$248.00▼0.03%LRCX$329.92▼5.83%BAC$59.50▼0.28%
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NVDA$203.53▼3.52%AAPL$317.31▲0.63%GOOGL$352.51▼1.31%GOOG$350.67▼1.23%MSFT$390.99▲1.53%AMZN$247.31▲0.80%TSM$421.58▼2.89%SPCX$139.14▼4.24%AVGO$384.05▼3.98%META$656.73▼1.86%TSLA$394.76▼3.19%MU$937.00▼4.32%BRK-B$496.85▲0.64%BRK-A$744,850.01▲0.69%LLY$1,181.87▼0.56%AMD$534.39▼4.21%WMT$114.78▲0.77%JPM$334.53▼0.58%ASML$1,726.04▼3.97%V$357.75▲2.52%JNJ$257.77▲0.31%XOM$144.51▲4.05%INTC$103.12▼6.12%AMAT$575.39▼4.50%CSCO$119.25▼1.70%MA$537.70▲2.08%CAT$931.47▼2.20%ABBV$248.00▼0.03%LRCX$329.92▼5.83%BAC$59.50▼0.28%
NVDA$203.53▼3.52%AAPL$317.31▲0.63%GOOGL$352.51▼1.31%GOOG$350.67▼1.23%MSFT$390.99▲1.53%AMZN$247.31▲0.80%TSM$421.58▼2.89%SPCX$139.14▼4.24%AVGO$384.05▼3.98%META$656.73▼1.86%TSLA$394.76▼3.19%MU$937.00▼4.32%BRK-B$496.85▲0.64%BRK-A$744,850.01▲0.69%LLY$1,181.87▼0.56%AMD$534.39▼4.21%WMT$114.78▲0.77%JPM$334.53▼0.58%ASML$1,726.04▼3.97%V$357.75▲2.52%JNJ$257.77▲0.31%XOM$144.51▲4.05%INTC$103.12▼6.12%AMAT$575.39▼4.50%CSCO$119.25▼1.70%MA$537.70▲2.08%CAT$931.47▼2.20%ABBV$248.00▼0.03%LRCX$329.92▼5.83%BAC$59.50▼0.28%