% of shares outstanding suppressed: the summed institutional 13F holdings (79,061,223) exceed the latest reported shares-outstanding count (60,690,820) by more than securities-lending double counting can explain (FINRA short interest 9,489,537 shares at 2026-04-30), so the share count is stale or wrong (common for annual 20-F foreign private issuers after a share issuance) and a percentage would be fabricated. Holder share counts are shown as filed.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. | 10,300,98410.3M | $867M | — | ADD 140% |
| 2 | FMR LLC | 9,262,2919.3M | $780M | — | ADD 13% |
| 3 | Venrock Adviser, LLC | 8,493,3218.5M | $715M | — | — |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 4,375,7034.4M | $368M | — | TRIM -8% |
| 5 | BlackRock, Inc. | 4,085,6514.1M | $344M | — | ADD 8% |
| 6 | RTW INVESTMENTS, LP | 2,782,0972.8M | $234M | — | ADD 3% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2,502,0952.5M | $211M | — | NEW† |
| 8 | JANUS HENDERSON GROUP PLC | 2,360,5962.4M | $199M | — | ADD 14% |
| 9 | STATE STREET CORP | 2,162,9642.2M | $182M | — | ADD 28% |
| 10 | Driehaus Capital Management LLC | 1,920,8001.9M | $162M | — | TRIM -12% |
| 11 | PERCEPTIVE ADVISORS LLC | 1,540,3841.5M | $130M | — | TRIM -34% |
| 12 | Paradigm Biocapital Advisors LP | 1,348,2431.3M | $113M | — | ADD 20% |
| 13 | Affinity Asset Advisors, LLC | 1,284,9261.3M | $108M | — | ADD 4% |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 1,217,2891.2M | $102M | — | ADD 15% |
| 15 | UBS Group AG | 1,144,3281.1M | $96M | — | ADD 17% |
| 16 | PRICE T ROWE ASSOCIATES INC /MD/ | 1,143,1521.1M | $96M | — | TRIM -8% |
| 17 | Vestal Point Capital, LP | 1,100,0001.1M | $93M | — | ADD 100% |
| 18 | FRONTIER CAPITAL MANAGEMENT CO LLC | 1,064,4831.1M | $90M | — | ADD 122% |
| 19 | JPMORGAN CHASE & CO | 1,110,4701.1M | $87M | — | TRIM -19% |
| 20 | BANK OF AMERICA CORP /DE/ | 900,871900,871 | $76M | — | ADD 14% |
| 21 | ALLIANCEBERNSTEIN L.P. | 990,297990,297 | $75M | — | TRIM -9% |
| 22 | MERCER GLOBAL ADVISORS INC /ADV | 831,428831,428 | $70M | — | TRIM -7% |
| 23 | GOLDMAN SACHS GROUP INC | 652,590652,590 | $55M | — | ADD 15% |
| 24 | CITADEL ADVISORS LLC | 598,902598,902 | $50M | — | TRIM -22% |
| 25 | MORGAN STANLEY | 595,032595,032 | $50M | — | TRIM -33% |
| 26 | JENNISON ASSOCIATES LLC | 585,016585,016 | $49M | — | — |
| 27 | Remedium Capital Partners, LLC | 583,591583,591 | $49M | — | — |
| 28 | First Light Asset Management, LLC | 576,684576,684 | $49M | — | ADD 102% |
| 29 | EVENTIDE ASSET MANAGEMENT, LLC | 557,423557,423 | $47M | — | ADD 28% |
| 30 | Polar Capital Holdings Plc | 539,177539,177 | $45M | — | ADD 7% |
| 31 | First Turn Management, LLC | 513,770513,770 | $43M | — | ADD 8% |
| 32 | BRAIDWELL LP | 478,667478,667 | $40M | — | TRIM -17% |
| 33 | NOVO HOLDINGS A/S | 450,000450,000 | $38M | — | TRIM -21% |
| 34 | FEDERATED HERMES, INC. | 442,738442,738 | $37M | — | ADD 246% |
| 35 | Balyasny Asset Management L.P. | 438,654438,654 | $37M | — | NEW |
| 36 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 420,684420,684 | $35M | — | ADD 10% |
| 37 | FRANKLIN RESOURCES INC | 405,538405,538 | $34M | — | TRIM -10% |
| 38 | VANGUARD PORTFOLIO MANAGEMENT LLC | 396,330396,330 | $33M | — | NEW |
| 39 | NORTHERN TRUST CORP | 390,879390,879 | $33M | — | ADD 19% |
| 40 | Opaleye Management Inc. | 390,000390,000 | $33M | — | — |
| 41 | GREAT POINT PARTNERS LLC | 374,000374,000 | $31M | — | — |
| 42 | VANGUARD FIDUCIARY TRUST CO | 368,961368,961 | $31M | — | NEW |
| 43 | LOOMIS SAYLES & CO L P | 362,781362,781 | $31M | — | ADD 42% |
| 44 | Capital World Investors | 348,674348,674 | $29M | — | ADD 173% |
| 45 | Fairmount Funds Management LLC | 298,647298,647 | $25M | — | TRIM -85% |
| 46 | Deep Track Capital, LP | 285,000285,000 | $24M | — | NEW |
| 47 | TWO SIGMA INVESTMENTS, LP | 281,386281,386 | $24M | — | ADD 167% |
| 48 | Woodline Partners LP | 261,120261,120 | $22M | — | ADD 24% |
| 49 | Pictet Asset Management Holding SA | 261,050261,050 | $22M | — | TRIM -17% |
| 50 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 250,000250,000 | $21M | — | ADD 4% |
| 51 | Candriam S.C.A. | 223,541223,541 | $19M | — | ADD 17% |
| 52 | BNP PARIBAS FINANCIAL MARKETS | 220,099220,099 | $19M | — | ADD 2109% |
| 53 | TD Asset Management Inc | 184,792184,792 | $16M | — | ADD 43% |
| 54 | Aberdeen Group plc | 143,379143,379 | $12M | — | ADD 297% |
| 55 | Nicholas Investment Partners, LP | 130,992130,992 | $11M | — | ADD 16% |
| 56 | Nuveen, LLC | 128,115128,115 | $11M | — | ADD 6% |
| 57 | Universal- Beteiligungs- und Servicegesellschaft mbH | 128,015128,015 | $11M | — | — |
| 58 | Bank of New York Mellon Corp | 126,757126,757 | $11M | — | ADD 7% |
| 59 | KENNEDY CAPITAL MANAGEMENT LLC | 122,669122,669 | $10M | — | — |
| 60 | ArrowMark Colorado Holdings LLC | 109,410109,410 | $9M | — | — |
| 61 | SEVEN GRAND MANAGERS, LLC | 100,000100,000 | $8M | — | ADD 100% |
| 62 | VICTORY CAPITAL MANAGEMENT INC | 95,13795,137 | $8M | — | TRIM -12% |
| 63 | MILLENNIUM MANAGEMENT LLC | 92,59292,592 | $8M | — | TRIM -34% |
| 64 | DEUTSCHE BANK AG\ | 91,42191,421 | $8M | — | ADD 15% |
| 65 | SCHRODER INVESTMENT MANAGEMENT GROUP | 96,65696,656 | $8M | — | TRIM -8% |
| 66 | NOMURA HOLDINGS INC | 88,56188,561 | $7M | — | ADD 15% |
| 67 | Ensign Peak Advisors, Inc | 82,30082,300 | $7M | — | ADD 3558% |
| 68 | MARSHALL WACE, LLP | 80,20180,201 | $7M | — | ADD 58% |
| 69 | SIMPLEX TRADING, LLC | 77,80877,808 | $7M | — | ADD 24% |
| 70 | Parkman Healthcare Partners LLC | 77,68677,686 | $7M | — | TRIM -40% |
| 71 | Swiss National Bank | 75,60075,600 | $6M | — | ADD 20% |
| 72 | Granahan Investment Management, LLC | 75,08675,086 | $6M | — | TRIM -21% |
| 73 | Alyeska Investment Group, L.P. | 75,00075,000 | $6M | — | NEW |
| 74 | Rhenman & Partners Asset Management AB | 75,00075,000 | $6M | — | NEW |
| 75 | WCM INVESTMENT MANAGEMENT, LLC | 76,03076,030 | $6M | — | NEW |
| 76 | Boxer Capital Management, LLC | 70,00070,000 | $6M | — | — |
| 77 | AMERIPRISE FINANCIAL INC | 69,88869,888 | $6M | — | TRIM -43% |
| 78 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 68,69668,696 | $6M | — | TRIM -15% |
| 79 | PRUDENTIAL FINANCIAL INC | 63,90063,900 | $5M | — | ADD 18% |
| 80 | FIFTH THIRD BANCORP | 63,80063,800 | $5M | — | NEW |
| 81 | Rafferty Asset Management, LLC | 60,39760,397 | $5M | — | ADD 24% |
| 82 | D. E. Shaw & Co., Inc. | 58,83558,835 | $5M | — | TRIM -7% |
| 83 | Russell Investments Group, Ltd. | 58,48458,484 | $5M | — | ADD 17% |
| 84 | PLATINUM INVESTMENT MANAGEMENT LTD | 58,31458,314 | $5M | — | TRIM -16% |
| 85 | Holocene Advisors, LP | 57,47357,473 | $5M | — | NEW |
| 86 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 56,35256,352 | $5M | — | ADD 13% |
| 87 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 54,43754,437 | $5M | — | ADD 37% |
| 88 | Lisanti Capital Growth, LLC | 52,26052,260 | $4M | — | NEW |
| 89 | BARCLAYS PLC | 50,39650,396 | $4M | — | TRIM -62% |
| 90 | RHUMBLINE ADVISERS | 48,67848,678 | $4M | — | ADD 6% |
| 91 | ALPS ADVISORS INC | 45,58645,586 | $4M | — | — |
| 92 | XTX Topco Ltd | 42,89942,899 | $4M | — | ADD 125% |
| 93 | SEI INVESTMENTS CO | 42,20342,203 | $4M | — | ADD 158% |
| 94 | Man Group plc | 41,81541,815 | $4M | — | ADD 275% |
| 95 | FIRST TRUST ADVISORS LP | 40,77640,776 | $3M | — | ADD 1093% |
| 96 | Invesco Ltd. | 38,76338,763 | $3M | — | TRIM -45% |
| 97 | Squarepoint Ops LLC | 38,34838,348 | $3M | — | NEW |
| 98 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 38,16138,161 | $3M | — | ADD 24% |
| 99 | KBC Group NV | 37,84337,843 | $3M | — | NEW |
| 100 | HighVista Strategies LLC | 35,76135,761 | $3M | — | TRIM -60% |
† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | — | — | 464 | 1K | 4.3M | 10.3M | $867M |
| FMR LLC | 7.5M | 7.5M | 6.9M | 6.9M | 8.2M | 9.3M | $780M |
| Venrock Adviser, LLC | 8.5M | 8.5M | 8.5M | 8.5M | 8.5M | 8.5M | $715M |
| WELLINGTON MANAGEMENT GROUP LLP | 4.5M | 5.5M | 3.8M | 4.7M | 4.7M | 4.4M | $368M |
| BlackRock, Inc. | 3.0M | 2.9M | 2.6M | 2.7M | 3.8M | 4.1M | $344M |
| RTW INVESTMENTS, LP | 2.7M | 2.7M | 2.7M | 2.7M | 2.7M | 2.8M | $234M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 2.5M | $211M |
| JANUS HENDERSON GROUP PLC | 1.1M | 1.8M | 509K | 486K | 2.1M | 2.4M | $199M |
| STATE STREET CORP | 1.5M | 1.3M | 1.3M | 1.7M | 1.7M | 2.2M | $182M |
| Driehaus Capital Management LLC | 2.6M | 2.3M | 2.3M | 2.2M | 2.2M | 1.9M | $162M |
| PERCEPTIVE ADVISORS LLC | 1.0M | 1.1M | 1.2M | 1.4M | 2.3M | 1.5M | $130M |
| Paradigm Biocapital Advisors LP | 1.3M | 962K | 959K | 1.5M | 1.1M | 1.3M | $113M |
| Affinity Asset Advisors, LLC | 932K | 1.2M | 692K | 1.2M | 1.2M | 1.3M | $108M |
| GEODE CAPITAL MANAGEMENT, LLC | 816K | 836K | 783K | 892K | 1.1M | 1.2M | $102M |
| UBS Group AG | 541K | 702K | 107K | 799K | 975K | 1.1M | $96M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 224 | 79,061,223 | — | $6.6B |
| 2025-Q4 | 207 | 71,327,322 | — | $5.4B |
| 2025-Q3 | 174 | 60,721,755 | 100.1% | $2.4B |
| 2025-Q2 | 183 | 57,837,645 | 95.3% | $2.5B |
| 2025-Q1 | 169 | 61,509,556 | 101.3% | $2.3B |
| 2024-Q4 | 158 | 57,873,778 | 95.4% | $2.6B |
| 2024-Q3 | 139 | 56,123,988 | 92.5% | $3.3B |
| 2024-Q2 | 139 | 54,180,458 | 89.3% | $2.1B |
| 2024-Q1 | 139 | 53,211,759 | 87.7% | $3.5B |
| 2023-Q4 | 85 | 41,859,159 | 69.0% | $1.2B |
| 2023-Q3 | 73 | 40,111,239 | 66.1% | $849M |
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
“Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following at the end thereof: Merger Agreement and Voting Agreement On June 18, 2026, Andor LLC ("Parent"), a Delaware limited liability company and a wholly owned subsidiary of AbbVie Inc. ("Guarantor"), Andor Merger Co. ("Merger Sub"), a Delaware corporation and a wholly owned subsidiary of Parent, the Company and Guarantor (solely for limited purposes) entered into an Agreement and Plan of Merger (the "Merger Agreemen”
| DRIEHAUS CAPITAL MANAGEMENT LLC | 4.68% | QII | 2025-09-30 | SEC → |
| FMR LLC | 4% | QII | 2026-06-30 | SEC → |
| T. Rowe Price Investment Management, Inc. | 1.3% | QII | 2026-06-30 | SEC → |
Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).
