13F reference period
Q2 2026
CUSIP: 00773J202
13F reference period
Q2 2026
Institutions Reporting
264
Shares (Excl. Options)
Price
$88.78
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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Latest holder context comes from 264 institutions filings for Q2 2026.
Security key
00773J202
13F reference period
Q2 2026
13F holders
264
13D/G owners
7
CIK / CUSIP context first
Broader feeds
Open recent reporting periods for CUSIP 00773J202:
13D/G owners
Large-stake holder rows connected to Schedule 13D/G evidence.
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Fairmount Funds Management LLC | 10% | 0% | $906,856,108 | +$46,185,203 | 10,185,961 | +5.4% | Harwin Peter Evan | 07 Oct 2026 |
| Paradigm Biocapital Advisors LP | 5.1% | $403,844,970 | 4,457,450 | Paradigm BioCapital Advisors LP | 24 Sep 2026 | |||
| PERCEPTIVE ADVISORS LLC | 4.9% | -2% | $383,312,075 | 4,319,496 | 0% | Perceptive Advisors LLC | 30 Jun 2026 | |
| RTW INVESTMENTS, LP | 4.8% | -23% | $377,322,125 | +$55,906,200 | 4,251,996 | +17% | RTW Investments, LP | 30 Jun 2026 |
| BlackRock, Inc. | 6.6% | $59,323,024 | 3,962,635 | BlackRock, Inc. | 30 Jun 2025 | |||
| Venrock Healthcare Capital Partners III, L.P. | 4.6% | $40,335,429 | 2,685,448 | Venrock Healthcare Capital Partners III, L.P. | 31 Dec 2024 | |||
| TANG CAPITAL MANAGEMENT LLC | 2.4% | -58% | $62,064,160 | -$42,895,840 | 1,892,200 | -41% | TANG CAPITAL MANAGEMENT, LLC | 31 Dec 2025 |
13F concentration
Largest 13F positions for this security by reported shares and value.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 13% | 13,026,187 | +11% | 0.05% | $1,156,464,882 |
| BlackRock, Inc. | 6.4% | 6,506,605 | +18% | 0.01% | $577,656,391 |
| PERCEPTIVE ADVISORS LLC | 4.2% | 4,319,496 | +14% | 6% | $383,484,855 |
| RTW INVESTMENTS, LP | 4.2% | 4,251,996 | +1.9% | 3.2% | $377,492,205 |
| Paradigm Biocapital Advisors LP | 3.8% | 3,840,778 | +96% | 6.4% | $340,984,271 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.4% | 3,448,681 | +13% | 0.01% | $306,173,899 |
| STATE STREET CORP | 3% | 3,057,416 | +17% | 0.01% | $271,437,392 |
| Venrock Adviser, LLC | 2.9% | 2,985,448 | -19% | 8% | $265,048,073 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.9% | 2,960,855 | +85% | 0.03% | $262,866,000 |
| Driehaus Capital Management LLC | 2.7% | 2,799,166 | +0.3% | 1.4% | $248,509,957 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 2,562,265 | +49% | 0.01% | $239,258,122 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.3% | 2,330,098 | +298% | 0.01% | $206,866,100 |
| Capital World Investors | 2.3% | 2,315,553 | +247% | 0.02% | $205,574,795 |
| Jupiter Topco LLC | 2.2% | 2,206,936 | 0% | 0.08% | $195,881,358 |
| TCG Crossover Management, LLC | 1.9% | 1,900,582 | 0% | 4.1% | $168,733,670 |
| TANG CAPITAL MANAGEMENT LLC | 1.9% | 1,892,200 | 0% | 7.6% | $167,989,516 |
| BANK OF AMERICA CORP /DE/ | 1.7% | 1,777,854 | +45% | 0.01% | $157,837,878 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.7% | 1,722,300 | 0.21% | $152,905,794 | |
| WELLINGTON MANAGEMENT GROUP LLP | 1.6% | 1,581,505 | -13% | 0.02% | $140,406,014 |
| GOLDMAN SACHS GROUP INC | 1.4% | 1,478,059 | +448% | 0.01% | $131,222,079 |
| FRANKLIN RESOURCES INC | 1.4% | 1,472,943 | +67% | 0.03% | $130,767,861 |
| Remedium Capital Partners, LLC | 1.4% | 1,464,169 | +0.55% | 29% | $129,988,924 |
| Affinity Asset Advisors, LLC | 1.3% | 1,279,134 | 0% | 5.6% | $113,561,517 |
| JPMORGAN CHASE & CO | 1.1% | 1,093,026 | +12% | 0.01% | $98,870,628 |
| Holocene Advisors, LP | 1% | 1,015,170 | 0.21% | $90,126,793 |
Quarter history
Holder count, reported shares/value, and median price by quarter.
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 638,393 | $56,806,769 | +$53,518,146 | $89.03 | 22 |
| 2026 Q2 | 95,831,034 | $8,518,140,426 | +$1,397,195,575 | $88.78 | 264 |
| 2026 Q1 | 82,677,175 | $4,164,129,887 | +$97,144,106 | $50.44 | 197 |
| 2025 Q4 | 80,976,878 | $2,652,563,796 | +$541,005,178 | $32.76 | 152 |
| 2025 Q3 | 64,298,657 | $1,077,601,900 | +$12,200,602 | $16.76 | 136 |
| 2025 Q2 | 63,624,754 | $952,552,077 | +$19,485,332 | $14.97 | 128 |
| 2025 Q1 | 62,108,053 | $1,004,204,799 | +$22,237,875 | $16.14 | 128 |
| 2024 Q4 | 59,883,954 | $1,394,038,124 | +$171,655,898 | $23.28 | 129 |
| 2024 Q3 | 51,375,323 | $1,511,815,633 | +$36,820,905 | $29.41 | 118 |
| 2024 Q2 | 50,382,939 | $1,184,222,119 | +$421,575,660 | $23.51 | 106 |
| 2024 Q1 | 31,640,426 | $1,196,964,043 | +$172,560,163 | $37.93 | 101 |
| 2023 Q4 | 28,010,905 | $600,997,673 | +$524,495,293 | $21.52 | 54 |
| 2023 Q3 | 3,257,983 | $39,909,852 | +$39,909,852 | $12.25 | 27 |