Who owns MAIR
Which tracked institutional funds hold MAIR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MAIR 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.
Conviction spread
MAIR’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MAIR 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
Only one quarter (2026-Q2) of 13F history is available — a quarter-over-quarter accumulation delta needs two.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
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 |
|---|---|---|---|---|
| FMR LLC new | 14,084,999 | $549M | 12.1% | 2026-Q2 |
| Durable Capital Partners LP new | 10,196,486 | $398M | 8.7% | 2026-Q2 |
| Invesco Ltd. new | 7,804,925 | $304M | 6.7% | 2026-Q2 |
| BlackRock, Inc. new | 7,501,231 | $293M | 6.4% | 2026-Q2 |
| HRTG GPE, LLC new | 7,407,407 | $289M | 6.3% | 2026-Q2 |
| CITADEL ADVISORS LLC new | 6,448,221 | $251M | 5.5% | 2026-Q2 |
| MORGAN STANLEY new | 5,793,130 | $226M | 5.0% | 2026-Q2 |
| Pictet Asset Management Holding SA new | 4,434,713 | $173M | 3.8% | 2026-Q2 |
| Zimmer Partners, LP new | 4,150,810 | $162M | 3.6% | 2026-Q2 |
| Forest Avenue Capital Management LP new | 4,061,688 | $158M | 3.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,712,618 | $145M | 3.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,065,402 | $120M | 2.6% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ new | 2,990,284 | $117M | 2.6% | 2026-Q2 |
| XN LP new | 2,630,403 | $103M | 2.3% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 2,443,131 | $95M | 2.1% | 2026-Q2 |
| Merewether Investment Management, LP new | 1,943,728 | $76M | 1.7% | 2026-Q2 |
| Alyeska Investment Group, L.P. new | 1,728,497 | $67M | 1.5% | 2026-Q2 |
| ExodusPoint Capital Management, LP new | 1,328,988 | $52M | 1.1% | 2026-Q2 |
| D1 Capital Partners L.P. new | 1,250,000 | $49M | 1.1% | 2026-Q2 |
| BAMCO INC /NY/ new | 1,169,540 | $46M | 1.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ new | 1,160,094 | $45M | 1.0% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC new | 1,003,544 | $39M | 0.9% | 2026-Q2 |
| NORGES BANK new | 1,000,000 | $39M | 0.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC new | 953,925 | $37M | 0.8% | 2026-Q2 |
| Ghisallo Capital Management LLC new | 800,000 | $31M | 0.7% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. new | 790,973 | $31M | 0.7% | 2026-Q2 |
| Burkehill Global Management, LP new | 725,000 | $28M | 0.6% | 2026-Q2 |
| SEVEN GRAND MANAGERS, LLC new | 700,000 | $27M | 0.6% | 2026-Q2 |
| Driehaus Capital Management LLC new | 679,403 | $26M | 0.6% | 2026-Q2 |
| SOROS FUND MANAGEMENT LLC new | 625,004 | $24M | 0.5% | 2026-Q2 |
| Robeco Schweiz AG new | 611,307 | $24M | 0.5% | 2026-Q2 |
| BlueCrest Capital Management Ltd new | 610,000 | $24M | 0.5% | 2026-Q2 |
| DEUTSCHE BANK AG\ new | 603,117 | $24M | 0.5% | 2026-Q2 |
| UBS Group AG new | 599,163 | $23M | 0.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC new | 580,455 | $23M | 0.5% | 2026-Q2 |
| JANE STREET GROUP, LLC new | 553,075 | $22M | 0.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO new | 544,992 | $21M | 0.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC new | 528,965 | $21M | 0.5% | 2026-Q2 |
| FRANKLIN RESOURCES INC new | 458,849 | $18M | 0.4% | 2026-Q2 |
| Longaeva Partners L.P. new | 454,392 | $18M | 0.4% | 2026-Q2 |
| Jain Global LLC new | 430,587 | $17M | 0.4% | 2026-Q2 |
| STATE STREET CORP new | 424,564 | $17M | 0.4% | 2026-Q2 |
| READYSTATE ASSET MANAGEMENT LP new | 411,000 | $16M | 0.4% | 2026-Q2 |
| Hudson Bay Capital Management LP new | 401,740 | $16M | 0.3% | 2026-Q2 |
| Daiwa Securities Group Inc. new | 400,717 | $16M | 0.3% | 2026-Q2 |
| Blackstone Inc. new | 400,000 | $16M | 0.3% | 2026-Q2 |
| Capital World Investors new | 393,922 | $15M | 0.3% | 2026-Q2 |
| JENNISON ASSOCIATES LLC new | 379,121 | $15M | 0.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP new | 318,481 | $12M | 0.3% | 2026-Q2 |
| LMR Partners LLP new | 307,354 | $12M | 0.3% | 2026-Q2 |
| TimesSquare Capital Management, LLC new | 305,681 | $12M | 0.3% | 2026-Q2 |
| Freestone Grove Partners LP new | 271,151 | $11M | 0.2% | 2026-Q2 |
| D. E. Shaw & Co., Inc. new | 261,600 | $10M | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC new | 242,855 | $9M | 0.2% | 2026-Q2 |
| Hood River Capital Management LLC new | 236,849 | $9M | 0.2% | 2026-Q2 |
| Walleye Capital LLC new | 230,989 | $9M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN new | 227,749 | $9M | 0.2% | 2026-Q2 |
| NORTHERN TRUST CORP new | 200,735 | $8M | 0.2% | 2026-Q2 |
| BW Gestao de Investimentos Ltda. new | 200,000 | $8M | 0.2% | 2026-Q2 |
| Davidson Kempner Capital Management LP new | 200,000 | $8M | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL new | 185,056 | $7M | 0.2% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC new | 182,929 | $7M | 0.2% | 2026-Q2 |
| TD Asset Management Inc new | 175,982 | $7M | 0.2% | 2026-Q2 |
| Weiss Asset Management LP new | 170,000 | $7M | 0.1% | 2026-Q2 |
| Point72 Asset Management, L.P. new | 149,881 | $6M | 0.1% | 2026-Q2 |
| XTX Topco Ltd new | 113,776 | $4M | 0.1% | 2026-Q2 |
| Woodline Partners LP new | 100,000 | $4M | 0.1% | 2026-Q2 |
| TEACHER RETIREMENT SYSTEM OF TEXAS new | 100,000 | $4M | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO new | 98,916 | $4M | 0.1% | 2026-Q2 |
| Madison Asset Management, LLC new | 82,427 | $3M | 0.1% | 2026-Q2 |
| PINNBROOK CAPITAL MANAGEMENT LP new | 80,600 | $3M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC new | 79,950 | $3M | 0.1% | 2026-Q2 |
| Centiva Capital, LP new | 75,000 | $3M | 0.1% | 2026-Q2 |
| Shay Capital LLC new | 55,000 | $2M | 0.0% | 2026-Q2 |
| STIFEL FINANCIAL CORP new | 53,095 | $2M | 0.0% | 2026-Q2 |
| SEI INVESTMENTS CO new | 52,003 | $2M | 0.0% | 2026-Q2 |
| Wolf Hill Capital Management, LP new | 50,000 | $2M | 0.0% | 2026-Q2 |
| Renaissance Capital LLC new | 45,472 | $2M | 0.0% | 2026-Q2 |
| Bank of New York Mellon Corp new | 42,529 | $2M | 0.0% | 2026-Q2 |
| Aventail Capital Group, LP new | 38,855 | $2M | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP new | 38,540 | $2M | 0.0% | 2026-Q2 |
| Holocene Advisors, LP new | 37,567 | $1M | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA new | 35,016 | $1M | 0.0% | 2026-Q2 |
| Lisanti Capital Growth, LLC new | 35,015 | $1M | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC new | 33,870 | $1M | 0.0% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC new | 33,736 | $1M | 0.0% | 2026-Q2 |
| Covalis Capital LLP new | 30,000 | $1M | 0.0% | 2026-Q2 |
| Cetera Investment Advisers new | 25,792 | $1M | 0.0% | 2026-Q2 |
| AGF MANAGEMENT LTD new | 25,000 | $975K | 0.0% | 2026-Q2 |
| Vestmark Advisory Solutions, Inc. new | 24,798 | $967K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 19,737 | $742K | 0.0% | 2026-Q2 |
| LPL Financial LLC new | 19,599 | $764K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 17,749 | $692K | 0.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC new | 17,435 | $680K | 0.0% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL new | 16,365 | $638K | 0.0% | 2026-Q2 |
| Diametric Capital, LP new | 15,300 | $597K | 0.0% | 2026-Q2 |
| SummitTX Capital, L.P. new | 13,775 | $537K | 0.0% | 2026-Q2 |
| Brevan Howard Capital Management LP new | 13,672 | $533K | 0.0% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC new | 13,269 | $517K | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC new | 12,350 | $482K | 0.0% | 2026-Q2 |
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.