QUODD

Insider Transactions last 24 months for Arrowhead Pharmaceuticals, Inc. - NSDQ: ARWR

Transactions
All	Buy	Sell	Option Exercise

Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Hamilton James C	Chief Medical Officer	03/05/2026	DS	Direct	COM	10,000	$64.19	$641,900.00	236,958
O'Brien Patrick	COO	01/06/2026	AA	Direct	COM	75,000	$0.00	$0.00	547,408
O'Brien Patrick	COO	01/06/2026	DG	Direct	COM	440	$0.00	$0.00	472,408
O'Brien Patrick	COO	01/06/2026	DG	Direct	COM	440	$0.00	$0.00	472,848
O'Brien Patrick	COO	01/06/2026	DG	Direct	COM	540	$0.00	$0.00	473,288
O'Brien Patrick	COO	01/06/2026	DG	Direct	COM	540	$0.00	$0.00	473,828
O'Brien Patrick	COO	01/06/2026	DG	Direct	COM	540	$0.00	$0.00	474,368
Hamilton James C	Chief Medical Officer	01/06/2026	AA	Direct	COM	75,000	$0.00	$0.00	246,958
Apel Daniel Joseph	Chief Financial Officer	01/06/2026	AA	Direct	COM	75,000	$0.00	$0.00	176,200
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	46	$68.00	$3,128.00	474,908
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	2,336	$64.04	$149,597.44	474,954
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	5,873	$62.91	$369,470.43	477,290
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	900	$62.25	$56,025.00	483,163
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	600	$61.12	$36,672.00	484,063
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	313	$68.00	$21,284.00	484,663
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	900	$66.01	$59,409.00	484,976
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	2,700	$64.44	$173,988.00	485,876
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	11,842	$63.84	$755,993.28	488,576
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	13,451	$62.96	$846,874.96	500,418
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	6,164	$62.23	$383,585.72	513,869
O'Brien Patrick	COO	01/05/2026	DS	Direct	COM	4,368	$61.20	$267,321.60	520,033
Hamilton James C	Chief Medical Officer	01/05/2026	DS	Direct	COM	309	$68.00	$21,012.00	171,958
Hamilton James C	Chief Medical Officer	01/05/2026	DS	Direct	COM	437	$65.97	$28,828.89	172,267
Hamilton James C	Chief Medical Officer	01/05/2026	DS	Direct	COM	1,200	$64.49	$77,388.00	172,704
Hamilton James C	Chief Medical Officer	01/05/2026	DS	Direct	COM	12,711	$63.95	$812,868.45	173,904

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Transaction Type Key First letter: A = Acquired, D = Disposed Second letter: A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security \| D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) \| E = Expiration of short derivative position \| F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. \| G = Gift \| H = Expiration (or cancellation) of long derivative position with value received \| I = Discretionary transaction in accordance with Rule 16b-3(f) \| J = Other \| L = Small acquisition under Rule 16a-6 \| M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 \| O = Exercise of out-of-the-money derivative security \| P = Open market or private purchase \| S = Open market or private sale \| U = Disposition pursuant to a tender of shares in a change of control transaction \| W = Acquisition or disposition by will or the laws of descent and distribution \| X = Exercise of in-the-money or at-the-money derivative security \| Z = Deposit into or withdrawal from voting trust		Send to Excel

Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust

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Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Anzalone Christopher Richard	Chief Executive Officer	12/29/2025	AM	Direct	COM	16,545	$6.15	$101,751.75	3,857,652
Anzalone Christopher Richard	Chief Executive Officer	12/29/2025	AM	Direct	COM	35,181	$6.15	$216,363.15	3,841,107
Anzalone Christopher Richard	Chief Executive Officer	03/04/2025	AM	Direct	COM	133,333	$7.75	$1,033,330.75	4,073,802
Anzalone Christopher Richard	Chief Executive Officer	03/03/2025	AM	Direct	COM	166,667	$7.75	$1,291,669.25	3,940,469