Who owns GENB
Which tracked institutional funds hold GENB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GENB company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
The tracked-fund tape on GENB is one-sided between 2026-Q1 and 2026-Q2: 43 added or opened and 13 trimmed or exited — on balance accumulating.
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
GENB’s largest tracked holder by dollar value, Flagship Pioneering, LLC, sizes it at 68.7% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 68.7pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GENB 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 2026-Q1 and 2026-Q2, across 84 tracked filers holding GENB, 64 increased or opened the position and 24 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 GENB between the 2026-Q1 and 2026-Q2 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 13
- NORGES BANK$35M
- BlackRock, Inc.$28M
- Deep Track Capital, LP$23M
- STATE STREET CORP$9M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$4M
- NORTHERN TRUST CORP$3M
Full exits 8
- Alyeska Investment Group, L.P.$6M
- ExodusPoint Capital Management, LP$4M
- JANE STREET GROUP, LLC$2M
- SILVERARC CAPITAL MANAGEMENT, LLC$1M
- D. E. Shaw & Co., Inc.$1M
- BALYASNY ASSET MANAGEMENT L.P.$994K
Largest adds
- Flagship Pioneering, LLC$274M
- FMR LLC$35M
- Capital World Investors$21M
- VANGUARD CAPITAL MANAGEMENT LLC$17M
- ARK Investment Management LLC$15M
- GEODE CAPITAL MANAGEMENT, LLC$11M
Largest trims
- JPMORGAN CHASE & CO$10M
- MILLENNIUM MANAGEMENT LLC$4M
- GOLDMAN SACHS GROUP INC$2M
- CenterBook Partners LP$1M
- FEDERATED HERMES, INC.$291K
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 |
|---|---|---|---|---|
| Flagship Pioneering, LLC | 62,673,117 | $1.1B | 62.0% | 2026-Q2 |
| FMR LLC added | 5,221,599 | $88M | 5.2% | 2026-Q2 |
| Capital World Investors added | 4,215,632 | $71M | 4.2% | 2026-Q2 |
| BRAIDWELL LP trimmed | 3,283,844 | $55M | 3.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 2,156,627 | $36M | 2.1% | 2026-Q2 |
| NORGES BANK new | 2,094,616 | $35M | 2.1% | 2026-Q2 |
| ARCH Venture Management, LLC | 1,944,426 | $33M | 1.9% | 2026-Q2 |
| HarbourVest Partners LLC | 1,722,210 | $29M | 1.7% | 2026-Q2 |
| BlackRock, Inc. new | 1,659,966 | $28M | 1.6% | 2026-Q2 |
| BAKER BROS. ADVISORS LP | 1,423,602 | $24M | 1.4% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,409,649 | $24M | 1.4% | 2026-Q2 |
| Deep Track Capital, LP new | 1,333,815 | $23M | 1.3% | 2026-Q2 |
| ARK Investment Management LLC added | 1,284,617 | $22M | 1.3% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,132,750 | $19M | 1.1% | 2026-Q2 |
| HARVARD MANAGEMENT CO INC | 1,111,100 | $19M | 1.1% | 2026-Q2 |
| NVIDIA CORP | 833,325 | $14M | 0.8% | 2026-Q2 |
| Davern Capital Partners, LP added | 824,679 | $14M | 0.8% | 2026-Q2 |
| Siren, L.L.C. | 736,104 | $12M | 0.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 735,003 | $12M | 0.7% | 2026-Q2 |
| STATE STREET CORP new | 526,565 | $9M | 0.5% | 2026-Q2 |
| Affinity Asset Advisors, LLC added | 400,000 | $7M | 0.4% | 2026-Q2 |
| MORGAN STANLEY added | 377,994 | $6M | 0.4% | 2026-Q2 |
| UBS Group AG trimmed | 326,273 | $6M | 0.3% | 2026-Q2 |
| SPHERA FUNDS MANAGEMENT LTD. added | 245,000 | $4M | 0.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC new | 224,602 | $4M | 0.2% | 2026-Q2 |
| NORTHERN TRUST CORP new | 197,543 | $3M | 0.2% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 175,356 | $3M | 0.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 167,285 | $3M | 0.2% | 2026-Q2 |
| CenterBook Partners LP trimmed | 131,560 | $2M | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC new | 129,406 | $2M | 0.1% | 2026-Q2 |
| SEVEN GRAND MANAGERS, LLC | 125,000 | $2M | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 116,902 | $2M | 0.1% | 2026-Q2 |
| LMR Partners LLP | 100,000 | $2M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 91,100 | $2M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 84,803 | $1M | 0.1% | 2026-Q2 |
| Bank of New York Mellon Corp new | 57,326 | $967K | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 55,430 | $935K | 0.1% | 2026-Q2 |
| TD Asset Management Inc added | 50,748 | $856K | 0.1% | 2026-Q2 |
| Nuveen, LLC new | 44,470 | $750K | 0.0% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC new | 39,685 | $669K | 0.0% | 2026-Q2 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 38,665 | $652K | 0.0% | 2026-Q2 |
| Amova Asset Management Americas, Inc. trimmed | 38,218 | $644K | 0.0% | 2026-Q2 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 37,226 | $628K | 0.0% | 2026-Q2 |
| Quadrature Capital Ltd new | 31,510 | $532K | 0.0% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 31,406 | $530K | 0.0% | 2026-Q2 |
| RHUMBLINE ADVISERS new | 30,648 | $517K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 30,587 | $516K | 0.0% | 2026-Q2 |
| Virtus Investment Advisers, LLC new | 26,430 | $446K | 0.0% | 2026-Q2 |
| XTX Topco Ltd new | 24,956 | $421K | 0.0% | 2026-Q2 |
| DEUTSCHE BANK AG\ new | 24,135 | $407K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 23,302 | $393K | 0.0% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. new | 22,650 | $382K | 0.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 21,926 | $370K | 0.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP new | 18,374 | $310K | 0.0% | 2026-Q2 |
| Magnus Financial Group LLC new | 15,600 | $263K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC new | 14,841 | $250K | 0.0% | 2026-Q2 |
| Invesco Ltd. new | 13,087 | $221K | 0.0% | 2026-Q2 |
| AXQ CAPITAL, LP new | 12,946 | $218K | 0.0% | 2026-Q2 |
| SEI INVESTMENTS CO new | 12,088 | $204K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 11,622 | $196K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. new | 11,193 | $189K | 0.0% | 2026-Q2 |
| Parallel Advisors, LLC added | 11,191 | $189K | 0.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 11,183 | $189K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 11,088 | $187K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND new | 8,600 | $145K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey new | 7,200 | $121K | 0.0% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 5,000 | $84K | 0.0% | 2026-Q2 |
| ALBION FINANCIAL GROUP /UT | 4,854 | $82K | 0.0% | 2026-Q2 |
| STRS OHIO new | 4,800 | $81K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS new | 3,800 | $64K | 0.0% | 2026-Q2 |
| Legal & General Group Plc new | 2,374 | $40K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. new | 2,215 | $37K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. new | 1,952 | $33K | 0.0% | 2026-Q2 |
| State of Wyoming new | 1,407 | $24K | 0.0% | 2026-Q2 |
| STANCE CAPITAL LLC new | 1,384 | $23K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 1,381 | $23K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 1,014 | $17K | 0.0% | 2026-Q2 |
| TD Waterhouse Canada Inc. new | 573 | $9K | 0.0% | 2026-Q2 |
| Benson Wealth Management INC new | 363 | $6K | 0.0% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM new | 336 | $6K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC new | 212 | $4K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 200 | $3K | 0.0% | 2026-Q2 |
| HOLLENCREST CAPITAL MANAGEMENT new | 5 | $84 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 1 | $17 | 0.0% | 2026-Q2 |
| Alyeska Investment Group, L.P. new | 500,000 | $6M | 0.4% | 2026-Q1 stale (1 quarter behind) |
| ExodusPoint Capital Management, LP new | 311,986 | $4M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| JANE STREET GROUP, LLC new | 123,371 | $2M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| SILVERARC CAPITAL MANAGEMENT, LLC new | 100,000 | $1M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| D. E. Shaw & Co., Inc. new | 95,000 | $1M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| BALYASNY ASSET MANAGEMENT L.P. new | 79,489 | $994K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP new | 58,762 | $734K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Qube Research & Technologies Ltd new | 50,221 | $628K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| TUDOR INVESTMENT CORP ET AL new | 23,833 | $298K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Y-Intercept (Hong Kong) Ltd new | 18,362 | $230K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Hudson Bay Capital Management LP new | 16,678 | $208K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Diametric Capital, LP new | 10,497 | $131K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| FNY Investment Advisers, LLC new | 3,000 | $37K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Avion Wealth new | 100 | $1K | 0.0% | 2026-Q1 stale (1 quarter behind) |
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.