ARROWHEAD PHARMACEUTICALS, INC. - Common Stock (ARWR)
CUSIP: 04280A100
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 135,488,140
- Total 13F shares
- 115,950,686
- Share change
- +4,825,104
- Total reported value
- $7,698,651,817
- Put/Call ratio
- 28%
- Price per share
- $66.39
- Number of holders
- 397
- Value change
- +$347,299,438
- Number of buys
- 237
- Number of sells
- 135
Quarterly Holders Quick Answers
What is CUSIP 04280A100?
CUSIP 04280A100 identifies ARWR - ARROWHEAD PHARMACEUTICALS, INC. - Common Stock in SEC institutional holdings data.
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Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 04280A100:
Top shareholders of ARWR - ARROWHEAD PHARMACEUTICALS, INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
|
Company |
15%
|
20,323,221
|
$1,349,258,642 | +$86,995,199 | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
12%
|
16,035,870
|
$553,077,156 | — | 30 Sep 2025 | |
| Avoro Capital Advisors LLC |
13F
13D/G
|
Company |
8.3%
from 13D/G
|
10,900,000
|
$375,941,000 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
13D/G
|
Company · STATE STREET CORPORATION |
4.6%
from 13D/G
|
6,397,364
|
$220,645,084 | — | 30 Sep 2025 | |
| FMR LLC |
13F
|
Company |
4.3%
|
5,759,830
|
$198,656,549 | — | 30 Sep 2025 | |
| Slate Path Capital LP |
13F
|
Company |
3.7%
|
4,982,000
|
$171,829,180 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.3%
|
3,131,042
|
$108,008,198 | — | 30 Sep 2025 | |
| Siren, L.L.C. |
13F
|
Individual |
2%
|
2,669,880
|
$92,084,161 | — | 30 Sep 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.5%
|
2,099,398
|
$72,408,237 | — | 30 Sep 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
1.5%
|
2,081,689
|
$71,797,454 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.3%
|
1,773,878
|
$61,181,052 | — | 30 Sep 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1.3%
|
1,759,489
|
$60,684,776 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.3%
|
1,702,674
|
$58,725,264 | — | 30 Sep 2025 | |
| BAKER BROS. ADVISORS LP |
13F
|
Company |
1.2%
|
1,670,762
|
$57,624,581 | — | 30 Sep 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
1.1%
|
1,436,840
|
$49,556,613 | — | 30 Sep 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.99%
|
1,345,860
|
$46,418,711 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.97%
|
1,311,590
|
$45,236,740 | — | 30 Sep 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
0.78%
|
1,053,794
|
$36,345,353 | — | 30 Sep 2025 | |
| Woodline Partners LP |
13F
|
Company |
0.74%
|
1,000,158
|
$34,495,449 | — | 30 Sep 2025 | |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
|
Company |
0.73%
|
993,000
|
$34,248,570 | — | 30 Sep 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
0.72%
|
973,567
|
$33,534,515 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
0.68%
|
918,183
|
$31,668,132 | — | 30 Sep 2025 | |
| Western Financial Corp/CA |
13F
|
Company |
0.61%
|
820,239
|
$28,290,043 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.6%
|
814,548
|
$28,093,746 | — | 30 Sep 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.59%
|
792,966
|
$27,349,397 | — | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.58%
|
780,132
|
$26,906,754 | — | 30 Sep 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.57%
|
775,717
|
$26,754,479 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.56%
|
760,687
|
$26,236,096 | — | 30 Sep 2025 | |
| Schonfeld Strategic Advisors LLC |
13F
|
Company |
0.4%
|
543,916
|
$18,759,658 | — | 30 Sep 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.4%
|
539,336
|
$18,601,699 | — | 30 Sep 2025 | |
| Aberdeen Group plc |
13F
|
Company |
0.38%
|
520,644
|
$17,957,012 | — | 30 Sep 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.37%
|
502,892
|
$17,344,745 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.35%
|
474,462
|
$16,364,194 | — | 30 Sep 2025 | |
| Privium Fund Management B.V. |
13F
|
Company |
0.35%
|
473,951
|
$16,346,570 | — | 30 Sep 2025 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.3%
|
402,659
|
$13,887,709 | — | 30 Sep 2025 | |
| Clearbridge Investments, LLC |
13F
|
Company |
0.29%
|
391,155
|
$13,490,944 | — | 30 Sep 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.29%
|
386,374
|
$13,326,040 | — | 30 Sep 2025 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.28%
|
380,625
|
$13,127,756 | — | 30 Sep 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.27%
|
371,112
|
$12,799,617 | — | 30 Sep 2025 | |
| NORDEA INVESTMENT MANAGEMENT AB |
13F
|
Company |
0.27%
|
372,282
|
$12,661,311 | — | 30 Sep 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.26%
|
350,239
|
$12,079,744 | — | 30 Sep 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.23%
|
317,614
|
$10,954,507 | — | 30 Sep 2025 | |
| FRED ALGER MANAGEMENT, LLC |
13F
|
Company |
0.23%
|
306,833
|
$10,582,670 | — | 30 Sep 2025 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
0.21%
|
291,023
|
$9,842,906 | — | 30 Sep 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.21%
|
278,336
|
$9,599,808 | — | 30 Sep 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.2%
|
274,163
|
$9,455,882 | — | 30 Sep 2025 | |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
|
Company |
0.2%
|
272,974
|
$9,414,873 | — | 30 Sep 2025 | |
| Kenneth Allen Myszkowski |
3/4/5
|
Chief Financial Officer |
—
class O/S missing
|
455,433
|
$8,967,476 | — | 04 Jan 2025 | |
| JOHNSON & JOHNSON |
13F
|
Company |
0.18%
|
247,598
|
$8,539,655 | — | 30 Sep 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.18%
|
246,072
|
$8,487,023 | — | 30 Sep 2025 |
Institutional Holders of ARROWHEAD PHARMACEUTICALS, INC. - Common Stock (ARWR) as of Q4 2025
As of 31 Dec 2025,
ARROWHEAD PHARMACEUTICALS, INC. - Common Stock (ARWR) was held by
397 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
115,950,686 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, Avoro Capital Advisors LLC, FMR LLC, STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, Slate Path Capital LP, BAKER BROS. ADVISORS LP, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP, and FRED ALGER MANAGEMENT, LLC.
This page lists
397
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
300
Q4 2025 holders
397
Holder diff
97
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.