Who owns CRBU
Which tracked institutional funds hold CRBU, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CRBU company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
16 tracked funds added or opened CRBU while 9 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
CRBU’s largest tracked holder by dollar value, Pfizer Inc, sizes it at 3.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 3.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CRBU divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 134 tracked filers holding CRBU, 54 increased or opened the position and 55 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in CRBU between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 3
- VANGUARD CAPITAL MANAGEMENT LLC$7M
- MACKENZIE FINANCIAL CORP$2M
- VANGUARD FIDUCIARY TRUST CO$988K
Full exits 3
- VANGUARD GROUP INC$7M
- TWO SIGMA ADVISERS, LP$2M
- DekaBank Deutsche Girozentrale$724K
Largest adds
- RENAISSANCE TECHNOLOGIES LLC$2M
- TWO SIGMA INVESTMENTS, LP$2M
- ACADIAN ASSET MANAGEMENT LLC$2M
- Pfizer Inc$891K
- BANK OF AMERICA CORP /DE/$885K
- MARSHALL WACE, LLP$830K
Largest trims
- JACOBS LEVY EQUITY MANAGEMENT, INC$629K
- UBS Group AG$522K
- CITADEL ADVISORS LLC$517K
- JANE STREET GROUP, LLC$423K
- DIMENSIONAL FUND ADVISORS LP$321K
- Point72 Asset Management, L.P.$286K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Pfizer Inc | 4,690,431 | $8M | 9.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,767,228 | $7M | 8.5% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 2,590,497 | $5M | 5.8% | 2026-Q1 |
| Kynam Capital Management, LP | 2,503,302 | $5M | 5.6% | 2026-Q1 |
| BlackRock, Inc. added | 2,143,085 | $4M | 4.8% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,759,934 | $3M | 4.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,297,167 | $2M | 2.9% | 2026-Q1 |
| Aberdeen Group plc trimmed | 1,212,541 | $2M | 2.7% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,174,251 | $2M | 2.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,074,421 | $2M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,017,959 | $2M | 2.3% | 2026-Q1 |
| PFM Health Sciences, LP | 957,787 | $2M | 2.2% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP new | 942,786 | $2M | 2.1% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 925,039 | $2M | 2.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 836,903 | $2M | 1.9% | 2026-Q1 |
| FMR LLC trimmed | 723,959 | $1M | 1.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 673,200 | $1M | 1.5% | 2026-Q1 |
| MAVERICK CAPITAL LTD | 652,542 | $1M | 1.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 559,642 | $1M | 1.3% | 2026-Q1 |
| Cambridge Investment Research Advisors, Inc. trimmed | 547,014 | $1M | 1.2% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 520,118 | $988K | 1.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 480,724 | $913K | 1.1% | 2026-Q1 |
| 72 Investment Holdings, LLC | 474,067 | $901K | 1.1% | 2026-Q1 |
| STATE STREET CORP | 423,263 | $804K | 1.0% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 376,589 | $716K | 0.8% | 2026-Q1 |
| Green Alpha Advisors, LLC trimmed | 373,650 | $710K | 0.8% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 358,941 | $682K | 0.8% | 2026-Q1 |
| XTX Topco Ltd trimmed | 323,469 | $615K | 0.7% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 303,655 | $577K | 0.7% | 2026-Q1 |
| UBS Group AG trimmed | 259,169 | $492K | 0.6% | 2026-Q1 |
| Bruce & Co., Inc. | 250,000 | $475K | 0.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 245,112 | $466K | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP | 217,735 | $414K | 0.5% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 187,622 | $356K | 0.4% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 176,697 | $336K | 0.4% | 2026-Q1 |
| MILESTONE ASSET MANAGEMENT, LLC trimmed | 162,076 | $308K | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 159,033 | $302K | 0.4% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 132,000 | $251K | 0.3% | 2026-Q1 |
| OMERS ADMINISTRATION Corp trimmed | 120,200 | $228K | 0.3% | 2026-Q1 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P added | 117,500 | $223K | 0.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC | 112,453 | $214K | 0.3% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 88,487 | $168K | 0.2% | 2026-Q1 |
| Invesco Ltd. added | 83,502 | $159K | 0.2% | 2026-Q1 |
| Keystone Financial Group | 80,475 | $153K | 0.2% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 78,954 | $150K | 0.2% | 2026-Q1 |
| Man Group plc added | 77,210 | $147K | 0.2% | 2026-Q1 |
| Brevan Howard Capital Management LP trimmed | 65,062 | $124K | 0.1% | 2026-Q1 |
| Nelson Capital Management, LLC | 58,685 | $112K | 0.1% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 57,900 | $110K | 0.1% | 2026-Q1 |
| CITIGROUP INC trimmed | 56,923 | $108K | 0.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 44,908 | $85K | 0.1% | 2026-Q1 |
| RBF Capital, LLC | 40,000 | $76K | 0.1% | 2026-Q1 |
| Quadrature Capital Ltd trimmed | 39,556 | $75K | 0.1% | 2026-Q1 |
| Vanguard Personalized Indexing Management, LLC trimmed | 39,233 | $75K | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 39,129 | $74K | 0.1% | 2026-Q1 |
| Graham Capital Management, L.P. trimmed | 38,751 | $74K | 0.1% | 2026-Q1 |
| Virtu Financial LLC trimmed | 36,609 | $70K | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 35,274 | $67K | 0.1% | 2026-Q1 |
| HSBC HOLDINGS PLC | 34,460 | $65K | 0.1% | 2026-Q1 |
| US BANCORP \DE\ | 34,265 | $65K | 0.1% | 2026-Q1 |
| Jefferies Financial Group Inc. trimmed | 33,262 | $63K | 0.1% | 2026-Q1 |
| Diametric Capital, LP added | 32,793 | $62K | 0.1% | 2026-Q1 |
| &PARTNERS trimmed | 32,505 | $62K | 0.1% | 2026-Q1 |
| Prime Capital Investment Advisors, LLC trimmed | 32,315 | $61K | 0.1% | 2026-Q1 |
| Catalyst Funds Management Pty Ltd trimmed | 32,200 | $61K | 0.1% | 2026-Q1 |
| Thrive Wealth Management, LLC | 32,000 | $61K | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO trimmed | 31,008 | $59K | 0.1% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 30,741 | $58K | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 30,586 | $58K | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 29,430 | $56K | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 29,101 | $55K | 0.1% | 2026-Q1 |
| CREDIT AGRICOLE S A | 29,000 | $55K | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 27,560 | $52K | 0.1% | 2026-Q1 |
| BARCLAYS PLC added | 26,713 | $51K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 24,975 | $47K | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 23,969 | $46K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 4,304,198 | $7M | 8.1% | 2025-Q4 stale |
| Pale Fire Capital SE | 775,055 | $2M | 2.1% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP trimmed | 1,115,700 | $2M | 2.1% | 2025-Q4 stale |
| DekaBank Deutsche Girozentrale | 130,000 | $724K | 0.9% | 2025-Q4 stale |
| Elmwood Wealth Management, Inc. trimmed | 468,240 | $428K | 0.5% | 2025-Q1 stale |
| Nuveen, LLC new | 330,831 | $302K | 0.4% | 2025-Q1 stale |
| Cubist Systematic Strategies, LLC trimmed | 92,762 | $216K | 0.3% | 2025-Q3 stale |
| Y-Intercept (Hong Kong) Ltd added | 137,211 | $173K | 0.2% | 2025-Q2 stale |
| Siren, L.L.C. | 105,347 | $168K | 0.2% | 2025-Q4 stale |
| ALLIANCEBERNSTEIN L.P. | 171,560 | $157K | 0.2% | 2025-Q1 stale |
| Woodline Partners LP added | 122,833 | $155K | 0.2% | 2025-Q2 stale |
| Aster Capital Management (DIFC) Ltd new | 105,006 | $132K | 0.2% | 2025-Q2 stale |
| Jain Global LLC new | 101,178 | $127K | 0.2% | 2025-Q2 stale |
| IEQ CAPITAL, LLC added | 100,198 | $126K | 0.1% | 2025-Q2 stale |
| ExodusPoint Capital Management, LP trimmed | 77,704 | $124K | 0.1% | 2025-Q4 stale |
| EXCHANGE TRADED CONCEPTS, LLC added | 124,889 | $114K | 0.1% | 2025-Q1 stale |
| RHUMBLINE ADVISERS trimmed | 116,590 | $106K | 0.1% | 2025-Q1 stale |
| Squarepoint Ops LLC added | 55,938 | $89K | 0.1% | 2025-Q4 stale |
| Thrivent Financial for Lutherans trimmed | 35,562 | $83K | 0.1% | 2025-Q3 stale |
| Lighthouse Investment Partners, LLC new | 44,160 | $70K | 0.1% | 2025-Q4 stale |
| Susquehanna Portfolio Strategies, LLC trimmed | 29,883 | $70K | 0.1% | 2025-Q3 stale |
| Point72 Asia (Singapore) Pte. Ltd. trimmed | 29,658 | $69K | 0.1% | 2025-Q3 stale |
| INTECH INVESTMENT MANAGEMENT LLC added | 60,650 | $55K | 0.1% | 2025-Q1 stale |
| SIMPLEX TRADING, LLC added | 21,123 | $49K | 0.1% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.