Who owns AAON (AAON)
Which tracked institutional funds hold AAON, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AAON 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 AAON is one-sided between 2026-Q1 and 2026-Q2: 217 added or opened and 63 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
AAON’s largest tracked holder by dollar value, BlackRock, Inc., 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 gap the other way — the median holder sizes AAON more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AAON 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 442 tracked filers holding AAON, 229 increased or opened the position and 230 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 AAON 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 40
- FULLER & THALER ASSET MANAGEMENT, INC.$116M
- CLOUGH CAPITAL PARTNERS L P$16M
- TUDOR INVESTMENT CORP ET AL$16M
- Qube Research & Technologies Ltd$9M
- ALGERT GLOBAL LLC$7M
- CASTLEARK MANAGEMENT LLC$6M
Full exits 41
- Amundi$33M
- Senvest Management, LLC$26M
- Freestone Grove Partners LP$24M
- Thrivent Financial for Lutherans$10M
- Northwest & Ethical Investments L.P.$9M
- SG Americas Securities, LLC$6M
Largest adds
- BlackRock, Inc.$348M
- STATE STREET CORP$162M
- VANGUARD CAPITAL MANAGEMENT LLC$140M
- VANGUARD PORTFOLIO MANAGEMENT LLC$132M
- JANE STREET GROUP, LLC$123M
- WASATCH ADVISORS LP$109M
Largest trims
- Champlain Investment Partners, LLC$87M
- Impax Asset Management Group plc$75M
- JPMORGAN CHASE & CO$15M
- ArrowMark Colorado Holdings LLC$14M
- Granite Investment Partners, LLC$6M
- SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC$6M
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 |
|---|---|---|---|---|
| BlackRock, Inc. added | 6,686,241 | $848M | 11.0% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 5,772,476 | $732M | 9.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 3,121,771 | $396M | 5.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 2,938,836 | $373M | 4.8% | 2026-Q2 |
| STATE STREET CORP added | 2,625,540 | $333M | 4.3% | 2026-Q2 |
| WASATCH ADVISORS LP added | 2,338,517 | $297M | 3.8% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 1,579,172 | $200M | 2.6% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL trimmed | 1,533,434 | $195M | 2.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,432,938 | $182M | 2.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,352,956 | $172M | 2.2% | 2026-Q2 |
| GENEVA CAPITAL MANAGEMENT LLC trimmed | 1,200,842 | $152M | 2.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,121,413 | $142M | 1.8% | 2026-Q2 |
| Capital World Investors trimmed | 1,102,743 | $140M | 1.8% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 1,023,955 | $130M | 1.7% | 2026-Q2 |
| Conestoga Capital Advisors, LLC trimmed | 1,015,825 | $129M | 1.7% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 973,933 | $124M | 1.6% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 917,551 | $116M | 1.5% | 2026-Q2 |
| Pictet Asset Management Holding SA added | 883,740 | $112M | 1.5% | 2026-Q2 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 878,950 | $112M | 1.4% | 2026-Q2 |
| Mawer Investment Management Ltd. added | 855,173 | $108M | 1.4% | 2026-Q2 |
| Spyglass Capital Management LLC trimmed | 776,629 | $99M | 1.3% | 2026-Q2 |
| Copeland Capital Management, LLC trimmed | 750,196 | $95M | 1.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 724,376 | $92M | 1.2% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 701,585 | $89M | 1.2% | 2026-Q2 |
| BOKF, NA trimmed | 681,598 | $86M | 1.1% | 2026-Q2 |
| Stephens Investment Management Group LLC added | 643,256 | $82M | 1.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 639,442 | $81M | 1.1% | 2026-Q2 |
| FMR LLC trimmed | 624,170 | $79M | 1.0% | 2026-Q2 |
| BAMCO INC /NY/ trimmed | 544,402 | $69M | 0.9% | 2026-Q2 |
| NORGES BANK trimmed | 522,529 | $66M | 0.9% | 2026-Q2 |
| CITIGROUP INC added | 496,931 | $63M | 0.8% | 2026-Q2 |
| BROWN ADVISORY INC trimmed | 489,527 | $62M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 440,816 | $56M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 435,788 | $55M | 0.7% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 430,042 | $55M | 0.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 422,966 | $54M | 0.7% | 2026-Q2 |
| UBS Group AG trimmed | 397,228 | $50M | 0.7% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 392,250 | $50M | 0.6% | 2026-Q2 |
| ROYCE & ASSOCIATES LP trimmed | 385,198 | $49M | 0.6% | 2026-Q2 |
| AMERICAN CAPITAL MANAGEMENT INC added | 375,178 | $48M | 0.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 368,608 | $47M | 0.6% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 365,700 | $46M | 0.6% | 2026-Q2 |
| Champlain Investment Partners, LLC trimmed | 361,641 | $46M | 0.6% | 2026-Q2 |
| Impax Asset Management Group plc trimmed | 343,165 | $44M | 0.6% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 326,523 | $41M | 0.5% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 313,228 | $40M | 0.5% | 2026-Q2 |
| Pembroke Management, LTD trimmed | 296,806 | $38M | 0.5% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 293,694 | $37M | 0.5% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 283,669 | $36M | 0.5% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 258,348 | $33M | 0.4% | 2026-Q2 |
| WCM INVESTMENT MANAGEMENT, LLC added | 255,888 | $32M | 0.4% | 2026-Q2 |
| Rockefeller Capital Management L.P. trimmed | 245,753 | $31M | 0.4% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 243,826 | $31M | 0.4% | 2026-Q2 |
| Ranger Investment Management, L.P. trimmed | 241,003 | $31M | 0.4% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 240,261 | $30M | 0.4% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 233,374 | $30M | 0.4% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 233,373 | $30M | 0.4% | 2026-Q2 |
| RIVERBRIDGE PARTNERS LLC trimmed | 208,611 | $26M | 0.3% | 2026-Q2 |
| EULAV Asset Management | 208,500 | $26M | 0.3% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 207,646 | $26M | 0.3% | 2026-Q2 |
| FIFTH THIRD BANCORP trimmed | 205,388 | $26M | 0.3% | 2026-Q2 |
| Giverny Capital Inc. added | 204,779 | $26M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 203,503 | $26M | 0.3% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 203,381 | $26M | 0.3% | 2026-Q2 |
| Aperture Investors, LLC added | 198,361 | $25M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 190,060 | $24M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 163,545 | $21M | 0.3% | 2026-Q2 |
| JACOBSON & SCHMITT ADVISORS, LLC trimmed | 155,304 | $20M | 0.3% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 153,625 | $19M | 0.3% | 2026-Q2 |
| Tidal Investments LLC added | 153,244 | $19M | 0.3% | 2026-Q2 |
| Ensign Peak Advisors, Inc trimmed | 150,716 | $19M | 0.2% | 2026-Q2 |
| FERGUSON WELLMAN CAPITAL MANAGEMENT, INC trimmed | 150,136 | $19M | 0.2% | 2026-Q2 |
| Allied Investment Advisors, LLC trimmed | 149,761 | $19M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 148,887 | $19M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 139,625 | $18M | 0.2% | 2026-Q2 |
| CLOUGH CAPITAL PARTNERS L P new | 127,644 | $16M | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL new | 127,466 | $16M | 0.2% | 2026-Q2 |
| Swedbank AB trimmed | 123,000 | $16M | 0.2% | 2026-Q2 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 121,484 | $15M | 0.2% | 2026-Q2 |
| Erste Asset Management GmbH added | 120,500 | $15M | 0.2% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 119,168 | $15M | 0.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 112,183 | $14M | 0.2% | 2026-Q2 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 111,559 | $14M | 0.2% | 2026-Q2 |
| NEXT CENTURY GROWTH INVESTORS LLC added | 110,031 | $14M | 0.2% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 108,820 | $14M | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC added | 107,045 | $14M | 0.2% | 2026-Q2 |
| Curi Capital, LLC added | 105,828 | $13M | 0.2% | 2026-Q2 |
| Aberdeen Group plc trimmed | 103,762 | $13M | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 101,370 | $13M | 0.2% | 2026-Q2 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC trimmed | 100,000 | $13M | 0.2% | 2026-Q2 |
| BLI - Banque de Luxembourg Investments trimmed | 97,500 | $12M | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 97,186 | $12M | 0.2% | 2026-Q2 |
| Legal & General Group Plc trimmed | 91,372 | $12M | 0.2% | 2026-Q2 |
| Trexquant Investment LP added | 89,740 | $11M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 80,753 | $10M | 0.1% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 80,016 | $10M | 0.1% | 2026-Q2 |
| Pathstone Holdings, LLC added | 76,309 | $10M | 0.1% | 2026-Q2 |
| KING LUTHER CAPITAL MANAGEMENT CORP trimmed | 73,606 | $9M | 0.1% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC trimmed | 72,369 | $9M | 0.1% | 2026-Q2 |
| B. Metzler seel. Sohn & Co. AG added | 70,851 | $9M | 0.1% | 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.