Security key
04280A100
ARROWHEAD PHARMACEUTICALS, INC. - COMMON STOCK (ARWR)
CUSIP: 04280A100
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 110,897,224
- Total 13F value
- $3,823,917,269
- Share change
- +5,233,340
- Put/Call ratio
- 27%
- SEC-reported price per share
- $34.49
- Number of holders
- 300
- Value change
- +$261,693,126
- Number of buys
- 164
- Number of sells
- 121
- Shares outstanding
- 141,328,976
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q3 2025
Institutions
300
Top holders
10
ARWR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Previous quarter: Q2 2025
ARROWHEAD PHARMACEUTICALS, INC. SEC filings
ARROWHEAD PHARMACEUTICALS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 04280A100
Recent filing periods:
Ownership snapshot
Top reported holders of ARWR - ARROWHEAD PHARMACEUTICALS, INC. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Avoro Capital Advisors LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
13F
Lead comparable stake: 8.3%
13D/G row: Avoro Capital Advisors LLC
Showing 1-6 of 15 holder rows.
Quick read
Avoro Capital Advisors LLC leads the comparable SEC ownership view at 8.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
Avoro Capital Advisors LLC
8.3%
STATE STREET CORP
4.6%
BlackRock, Inc.
14%
VANGUARD GROUP INC
11%
Slate Path Capital LP
3.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Avoro Capital Advisors LLC |
13D/G
13F
Company
|
8.3%
|
$193,377,834
11,517,441 shares
|
-$8,581,554 | 30 Jun 2025 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
4.6%
|
$106,970,030
6,371,056 shares
|
-$10,547,360 | 30 Jun 2025 |
| BlackRock, Inc. |
13F
Company
|
14%
|
$306,913,213
19,424,887 shares
|
— | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$245,296,137
15,525,072 shares
|
— | 30 Jun 2025 |
| Slate Path Capital LP |
13F
Company
|
3.7%
|
$82,665,600
5,232,000 shares
|
— | 30 Jun 2025 |
| FMR LLC |
13F
Company
|
3.7%
|
$81,690,906
5,170,310 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
300
Shares
110,897,224
Rows available
300
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
279
Q3 2025 holders
300
Holder diff
21
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend