Who owns Maravai LifeSciences Holdings (MRVI)
Which tracked institutional funds hold MRVI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MRVI 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 MRVI is one-sided between 2026-Q1 and 2026-Q2: 82 added or opened and 6 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
MRVI’s largest tracked holder by dollar value, GTCR LLC, sizes it at 3.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 3.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MRVI 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 171 tracked filers holding MRVI, 99 increased or opened the position and 83 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 MRVI 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 18
- Ophir Asset Management Pty Ltd$30M
- Hillsdale Investment Management Inc.$11M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$9M
- ArrowMark Colorado Holdings LLC$8M
- KENNEDY CAPITAL MANAGEMENT LLC$7M
- Verition Fund Management LLC$5M
Full exits 5
- MACKENZIE FINANCIAL CORP$18M
- T. Rowe Price Investment Management, Inc.$3M
- Brummer Multi-Strategy AB$2M
- Capricorn Fund Managers Ltd$961K
- Delta Investment Management, LLC$870K
Largest adds
- GTCR LLC$69M
- MILLENNIUM MANAGEMENT LLC$36M
- BlackRock, Inc.$36M
- BRAIDWELL LP$25M
- DEUTSCHE BANK AG\$24M
- 12 West Capital Management LP$24M
Largest trims
- JANE STREET GROUP, LLC$4M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| GTCR LLC | 20,150,005 | $126M | 14.6% | 2026-Q2 |
| BlackRock, Inc. added | 9,970,780 | $62M | 7.2% | 2026-Q2 |
| BRAIDWELL LP trimmed | 8,702,921 | $54M | 6.3% | 2026-Q2 |
| 12 West Capital Management LP trimmed | 7,060,195 | $44M | 5.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 6,508,220 | $41M | 4.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 5,283,665 | $33M | 3.8% | 2026-Q2 |
| Ophir Asset Management Pty Ltd new | 4,826,698 | $30M | 3.5% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 4,606,491 | $29M | 3.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 4,304,927 | $27M | 3.1% | 2026-Q2 |
| First Eagle Investment Management, LLC added | 3,671,287 | $23M | 2.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,130,258 | $20M | 2.3% | 2026-Q2 |
| STATE STREET CORP added | 2,901,706 | $18M | 2.1% | 2026-Q2 |
| Nuveen, LLC added | 2,857,580 | $18M | 2.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 2,593,559 | $17M | 1.9% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 2,255,820 | $14M | 1.6% | 2026-Q2 |
| Monaco Asset Management SAM trimmed | 2,231,026 | $14M | 1.6% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 2,152,154 | $13M | 1.6% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 2,122,598 | $13M | 1.5% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 2,005,579 | $13M | 1.5% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,908,276 | $12M | 1.4% | 2026-Q2 |
| Philosophy Capital Management LLC trimmed | 1,900,000 | $12M | 1.4% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 1,849,079 | $12M | 1.3% | 2026-Q2 |
| ROYCE & ASSOCIATES LP | 1,808,448 | $11M | 1.3% | 2026-Q2 |
| GENERAL AMERICAN INVESTORS CO INC | 1,716,193 | $11M | 1.2% | 2026-Q2 |
| Hillsdale Investment Management Inc. new | 1,682,878 | $11M | 1.2% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP added | 1,665,817 | $10M | 1.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 1,641,297 | $10M | 1.2% | 2026-Q2 |
| Tejara Capital Ltd trimmed | 1,595,345 | $10M | 1.2% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new | 1,513,606 | $9M | 1.1% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 1,471,477 | $9M | 1.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,361,558 | $8M | 1.0% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC new | 1,275,000 | $8M | 0.9% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC added | 1,107,379 | $7M | 0.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,071,536 | $7M | 0.8% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 1,028,379 | $6M | 0.7% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,008,107 | $6M | 0.7% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 1,000,360 | $6M | 0.7% | 2026-Q2 |
| First Pacific Advisors, LP | 884,883 | $6M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 823,119 | $5M | 0.6% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 792,962 | $5M | 0.6% | 2026-Q2 |
| Verition Fund Management LLC new | 777,738 | $5M | 0.6% | 2026-Q2 |
| Qube Research & Technologies Ltd new | 748,447 | $5M | 0.5% | 2026-Q2 |
| Decker Retirement Planning Inc. new | 616,881 | $4M | 0.4% | 2026-Q2 |
| Invesco Ltd. added | 572,160 | $4M | 0.4% | 2026-Q2 |
| NORGES BANK added | 567,400 | $4M | 0.4% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 529,548 | $3M | 0.4% | 2026-Q2 |
| Cerity Partners LLC added | 469,359 | $3M | 0.3% | 2026-Q2 |
| XTX Topco Ltd added | 433,231 | $3M | 0.3% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 420,360 | $3M | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 357,349 | $2M | 0.3% | 2026-Q2 |
| CITIGROUP INC trimmed | 313,481 | $2M | 0.2% | 2026-Q2 |
| Creative Planning added | 300,199 | $2M | 0.2% | 2026-Q2 |
| Quinn Opportunity Partners LLC | 265,070 | $2M | 0.2% | 2026-Q2 |
| UBS Group AG added | 260,265 | $2M | 0.2% | 2026-Q2 |
| Symmetry Investments LP trimmed | 256,600 | $2M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 210,062 | $1M | 0.2% | 2026-Q2 |
| PenderFund Capital Management Ltd. | 205,000 | $1M | 0.1% | 2026-Q2 |
| Aquatic Capital Management LLC added | 198,532 | $1M | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC trimmed | 181,238 | $1M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 177,501 | $1M | 0.1% | 2026-Q2 |
| Headlands Technologies LLC added | 166,327 | $1M | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 165,069 | $1M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 158,544 | $989K | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 158,458 | $989K | 0.1% | 2026-Q2 |
| Man Group plc new | 158,429 | $989K | 0.1% | 2026-Q2 |
| Legato Capital Management LLC new | 146,065 | $911K | 0.1% | 2026-Q2 |
| Integrated Quantitative Investments LLC new | 146,065 | $911K | 0.1% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 142,590 | $890K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 142,561 | $890K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 140,401 | $397K | 0.0% | 2026-Q2 |
| SEI INVESTMENTS CO added | 139,455 | $870K | 0.1% | 2026-Q2 |
| STRS OHIO trimmed | 135,800 | $847K | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 116,968 | $730K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 116,678 | $728K | 0.1% | 2026-Q2 |
| CAXTON ASSOCIATES LLP trimmed | 112,479 | $702K | 0.1% | 2026-Q2 |
| Orion Porfolio Solutions, LLC added | 97,236 | $607K | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd new | 96,800 | $604K | 0.1% | 2026-Q2 |
| EntryPoint Capital, LLC added | 95,186 | $594K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 94,967 | $593K | 0.1% | 2026-Q2 |
| Graham Capital Management, L.P. added | 92,277 | $576K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 85,644 | $534K | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 84,821 | $529K | 0.1% | 2026-Q2 |
| State of Wyoming new | 80,262 | $501K | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP added | 78,111 | $487K | 0.1% | 2026-Q2 |
| Militia Capital Management LLC new | 77,000 | $480K | 0.1% | 2026-Q2 |
| Hilltop Holdings Inc. new | 75,239 | $469K | 0.1% | 2026-Q2 |
| Voleon Capital Management LP trimmed | 74,649 | $466K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 72,747 | $454K | 0.1% | 2026-Q2 |
| Trexquant Investment LP trimmed | 69,861 | $436K | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 66,437 | $415K | 0.0% | 2026-Q2 |
| BANK OF NOVA SCOTIA new | 61,267 | $382K | 0.0% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ | 59,452 | $371K | 0.0% | 2026-Q2 |
| BARCLAYS PLC added | 59,041 | $368K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 57,593 | $359K | 0.0% | 2026-Q2 |
| CenterBook Partners LP trimmed | 55,910 | $349K | 0.0% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. trimmed | 53,067 | $331K | 0.0% | 2026-Q2 |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. new | 50,615 | $316K | 0.0% | 2026-Q2 |
| Empowered Funds, LLC trimmed | 50,167 | $313K | 0.0% | 2026-Q2 |
| Quantbot Technologies LP added | 42,955 | $268K | 0.0% | 2026-Q2 |
| Magnetar Financial LLC new | 35,958 | $224K | 0.0% | 2026-Q2 |
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.