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Arrowhead Phrmct (ARWR)
NASDAQ
$87.02-$0.09 (-0.10%)
Price as of Aug 21, 2026 7:30 PM EDT- $12.3BMarket Cap
- 308.39%1-Year Change
- BiotechnologyIndustry
Arrowhead Phrmct (ARWR)
$87.02-$0.09 (-0.10%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK FUNDING, INC. /DE | 11.49% | 16.2M | +342,088 (+2.11%) | Dec 31, 2024 |
BLACKROCK INC. | 11.13% | 15.7M | +336,569 (+2.15%) | Jun 30, 2024 |
VANGUARD GROUP INC | 10.86% | 15.3M | -742,749 (-4.86%) | Dec 31, 2025 |
BLACKROCK, INC. | 10.53% | 14.8M | -3.3M (-22.46%) | Jun 30, 2026 |
AVORO CAPITAL ADVISORS LLC | 8.06% | 11.4M | +655,556 (+5.77%) | Jun 30, 2026 |
FMR LLC | 5.71% | 8.0M | +773,152 (+9.62%) | Jun 30, 2026 |
OPPENHEIMERFUNDS, INC. | 5.54% | 7.8M | -2,951 (-0.04%) | Mar 31, 2019 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 7.51% | 10.6M | +432,696 (+4.09%) | Mar 31, 2026 |
FIDELITY MT VERNON STREET TRUST | 2.54% | 3.6M | +436,705 (+12.21%) | May 31, 2026 |
SPDR SERIES TRUST | 1.73% | 2.4M | 0 (0.00%) | Apr 30, 2026 |
ADVENT CONVERTIBLE & INCOME FUND | 1.51% | 2.1M | +402,000 (+18.89%) | Apr 30, 2026 |
INVESCO EXCHANGE-TRADED FUND TRUST | 1.31% | 1.8M | +1.6M (+88.29%) | Apr 30, 2026 |
AIM INTERNATIONAL MUTUAL FUNDS (INVESCO INTERNATIONAL MUTUAL FUNDS) | 1.28% | 1.8M | 0 (0.00%) | Apr 30, 2026 |
Virtus Convertible & Income Fund | 1.26% | 1.8M | 0 (0.00%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions1.7B (75.70%)
- Mutual Funds545.4M (23.73%)
- Insiders13.0M (0.56%)
- Other0 (0.00%)
Insider Transactions
- 0.56% (13.0M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 6Number of InsiderSelling (last 12 months)
- $3.4BAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
OLUKOTUN ADEOYE Y | Sell | Aug 18, 2026 | $173,920.00 | 2,000 | $86.96 | 31,600 |
Cohen Matthew Gregory | Award | Jun 15, 2026 | $0.00 | 11,882 | $0.00 | 11,882 |
Hamilton James C Chief Medical Officer | Sell | Mar 05, 2026 | $641,900.00 | 10,000 | $64.19 | 236,958 |
O'Brien Patrick COO | Gift | Jan 06, 2026 | $0.00 | 540 | $0.00 | 474,368 |
Apel Daniel Joseph Chief Financial Officer | Award | Jan 06, 2026 | $0.00 | 75,000 | $0.00 | 176,200 |
O'Brien Patrick COO | Gift | Jan 06, 2026 | $0.00 | 540 | $0.00 | 473,828 |
O'Brien Patrick COO | Gift | Jan 06, 2026 | $0.00 | 540 | $0.00 | 473,288 |
O'Brien Patrick COO | Gift | Jan 06, 2026 | $0.00 | 440 | $0.00 | 472,848 |
O'Brien Patrick COO | Gift | Jan 06, 2026 | $0.00 | 440 | $0.00 | 472,408 |
O'Brien Patrick COO | Award | Jan 06, 2026 | $0.00 | 75,000 | $0.00 | 547,408 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $283,235.00 | 4,625 | $61.24 | 207,497 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $379,285.20 | 6,090 | $62.28 | 201,407 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $932,043.92 | 14,792 | $63.01 | 186,615 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $812,868.45 | 12,711 | $63.95 | 173,904 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $77,388.00 | 1,200 | $64.49 | 172,704 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $28,828.89 | 437 | $65.97 | 172,267 |
Hamilton James C Chief Medical Officer | Sell | Jan 05, 2026 | $21,012.00 | 309 | $68.00 | 171,958 |
Anzalone Christopher Richard Chief Executive Officer | Sell | Jan 02, 2026 | $488,566.08 | 7,416 | $65.88 | 3.8M |
Anzalone Christopher Richard Chief Executive Officer | Sell | Jan 02, 2026 | $383,136.69 | 5,771 | $66.39 | 3.8M |
Anzalone Christopher Richard Chief Executive Officer | Exempt | Dec 29, 2025 | $0.00 | 35,181 | $0.00 | 16,545 |
Anzalone Christopher Richard Chief Executive Officer | Exempt | Dec 29, 2025 | $0.00 | 16,545 | $0.00 | 0 |
Anzalone Christopher Richard Chief Executive Officer | Exempt | Dec 29, 2025 | $216,363.15 | 35,181 | $6.15 | 3.8M |
Anzalone Christopher Richard Chief Executive Officer | Exempt | Dec 29, 2025 | $101,751.75 | 16,545 | $6.15 | 3.9M |
Anzalone Christopher Richard Chief Executive Officer | Sell | Dec 29, 2025 | $2.4M | 35,181 | $69.33 | 3.8M |
Anzalone Christopher Richard Chief Executive Officer | Sell | Dec 29, 2025 | $1.1M | 16,545 | $68.69 | 3.8M |
Ferrari Mauro | Sell | Dec 26, 2025 | $527,100.00 | 7,530 | $70.00 | 69,053 |
Anzalone Christopher Richard Chief Executive Officer | Sell | Dec 22, 2025 | $684,119.96 | 10,012 | $68.33 | 3.8M |
Anzalone Christopher Richard Chief Executive Officer | Sell | Dec 22, 2025 | $177,219.90 | 2,574 | $68.85 | 3.8M |
Waddill William D. | Sell | Dec 19, 2025 | $161,050.56 | 2,416 | $66.66 | 62,514 |
Vakiener Victoria | Sell | Dec 19, 2025 | $186,497.37 | 2,799 | $66.63 | 42,964 |