PACB Pacific Biosciences of California, Inc.
Pacific Biosciences of California, Inc. (PACB) Institutional Ownership
What the institutions did with PACB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 32.3M | 16.9% |
| ARK Investment Management LLC | 29.8M | 15.6% |
| SOFTBANK GROUP CORP. | 20.5M | 10.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 13.4M | 7.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 7.6M | 4.0% |
| Sumitomo Mitsui Trust Group, Inc. | 6.0M | 3.1% |
| Amova Asset Management Americas, Inc. | 6.0M | 3.1% |
| STATE STREET CORP | 6.0M | 3.1% |
| Point72 Asset Management, L.P. | 4.8M | 2.5% |
| TWO SIGMA INVESTMENTS, LP | 4.2M | 2.2% |
| D. E. Shaw & Co., Inc. | 4.2M | 2.2% |
| MILLENNIUM MANAGEMENT LLC | 4.0M | 2.1% |
| GOLDMAN SACHS GROUP INC | 3.2M | 1.7% |
| CITADEL ADVISORS LLC | 2.8M | 1.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.7M | 1.4% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.7M | 1.4% |
| NORTHERN TRUST CORP | 2.4M | 1.2% |
| VANGUARD FIDUCIARY TRUST CO | 2.2M | 1.1% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2.1M | 1.1% |
| Longaeva Partners L.P. | 2.1M | 1.1% |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 1.7M | 0.9% |
| Birchview Capital, LP | 1.4M | 0.7% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 0.7% |
| Invesco Ltd. | 1.3M | 0.7% |
| AQR CAPITAL MANAGEMENT LLC | 1.3M | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 25.3M | 32.3M | +7.1M |
| ARK Investment Management LLC | Reduced | 36.3M | 29.8M | -6.5M |
| Point72 Asset Management, L.P. | Increased | 285.7K | 4.8M | +4.5M |
| GOLDMAN SACHS GROUP INC | Increased | 988.5K | 3.2M | +2.2M |
| Longaeva Partners L.P. | New | 0 | 2.1M | +2.1M |
| Nuveen, LLC | Reduced | 3.0M | 1.0M | -1.9M |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 2.5M | 966.2K | -1.5M |
| MORGAN STANLEY | Reduced | 1.8M | 477.8K | -1.4M |
| JANE STREET GROUP, LLC | Reduced | 1.4M | 32.0K | -1.4M |
| CITADEL ADVISORS LLC | Increased | 1.6M | 2.8M | +1.3M |
| HRT FINANCIAL LP | Sold Out | 1.3M | 0 | -1.3M |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | 7.0M | 6.0M | -1.0M |
| Amova Asset Management Americas, Inc. | Reduced | 7.0M | 6.0M | -1.0M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 4.9M | 4.0M | -929.9K |
| Qube Research & Technologies Ltd | Reduced | 1.2M | 298.0K | -887.0K |
| UBS Group AG | Reduced | 1.6M | 893.1K | -747.0K |
| TWO SIGMA INVESTMENTS, LP | Increased | 3.5M | 4.2M | +733.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 7.0M | 7.6M | +631.3K |
| Numerai GP LLC | New | 0 | 621.5K | +621.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 12.8M | 13.4M | +620.5K |
| Man Group plc | New | 0 | 597.3K | +597.3K |
| D. E. Shaw & Co., Inc. | Increased | 3.6M | 4.2M | +570.6K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 759.5K | 1.3M | +537.2K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 502.7K | 0 | -502.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 1.7M | 2.1M | +410.1K |
| XTX Topco Ltd | Increased | 244.8K | 638.9K | +394.1K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 418.8K | 793.3K | +374.5K |
| CAXTON ASSOCIATES LLP | Sold Out | 353.1K | 0 | -353.1K |
| Connor, Clark & Lunn Investment Management Ltd. | New | 0 | 348.3K | +348.3K |
| BANK OF AMERICA CORP /DE/ | Reduced | 1.7M | 1.3M | -318.6K |
| Balyasny Asset Management L.P. | Increased | 260.5K | 564.3K | +303.8K |
| HIMENSION CAPITAL (SINGAPORE) PTE. LTD. | Sold Out | 276.5K | 0 | -276.5K |
| Mirador Capital Partners LP | Reduced | 604.9K | 342.5K | -262.4K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 2.4M | 2.7M | +246.8K |
| JENNISON ASSOCIATES LLC | Sold Out | 229.8K | 0 | -229.8K |
| NORTHERN TRUST CORP | Increased | 2.1M | 2.4M | +222.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 2.0M | 2.2M | +201.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 2.9M | 2.7M | -196.5K |
| Invesco Ltd. | Reduced | 1.5M | 1.3M | -171.1K |
| STATE STREET CORP | Reduced | 6.1M | 6.0M | -160.5K |
| WELLS FARGO & COMPANY/MN | Increased | 131.2K | 283.1K | +151.9K |
| Birchview Capital, LP | Reduced | 1.5M | 1.4M | -150.0K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 899.6K | 759.8K | -139.8K |
| GSA CAPITAL PARTNERS LLP | Sold Out | 137.3K | 0 | -137.3K |
| Voleon Capital Management LP | New | 0 | 134.8K | +134.8K |
| Russell Investments Group, Ltd. | Increased | 469.9K | 596.8K | +127.0K |
| OSAIC HOLDINGS, INC. | Increased | 40.3K | 164.5K | +124.2K |
| FARALLON CAPITAL MANAGEMENT LLC | Reduced | 135.0K | 14.2K | -120.8K |
| SEI INVESTMENTS CO | Reduced | 166.8K | 59.2K | -107.6K |
| CITIGROUP INC | Increased | 33.1K | 139.4K | +106.3K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Increased | 336.3K | 441.6K | +105.4K |
| Bridgewater Associates, LP | New | 0 | 102.8K | +102.8K |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | Reduced | 1.8M | 1.7M | -93.8K |
| MARSHALL WACE, LLP | Increased | 81.3K | 163.6K | +82.3K |
| Cerity Partners LLC | Increased | 21.4K | 98.5K | +77.1K |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | 107.8K | 33.4K | -74.4K |
| GROUP ONE TRADING LLC | Reduced | 365.0K | 290.9K | -74.2K |
| Quadrature Capital Ltd | Increased | 112.5K | 185.7K | +73.2K |
| Vestmark Advisory Solutions, Inc. | Reduced | 550.1K | 478.2K | -71.9K |
| BARCLAYS PLC | Increased | 222.3K | 277.0K | +54.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.