Who owns ASM
Which tracked institutional funds hold ASM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ASM company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-02). 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
23 tracked funds added or opened ASM while 18 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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
ASM’s largest tracked holder by dollar value, Tidal Investments LLC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ASM 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 135 tracked filers holding ASM, 84 increased or opened the position and 52 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 ASM 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 3
- Caisse de depot et placement du Quebec$1M
- Walleye Capital LLC$904K
- Integrated Advisors Network LLC$533K
Full exits 8
- Man Group plc$5M
- Connor, Clark & Lunn Investment Management Ltd.$4M
- JANE STREET GROUP, LLC$4M
- SG Americas Securities, LLC$3M
- HRT FINANCIAL LP$2M
- Auxano Advisors, LLC$1M
Largest adds
- Tidal Investments LLC$14M
- RENAISSANCE TECHNOLOGIES LLC$13M
- MORGAN STANLEY$4M
- U S GLOBAL INVESTORS INC$3M
- CITADEL ADVISORS LLC$3M
- XTX Topco Ltd$2M
Largest trims
- GEODE CAPITAL MANAGEMENT, LLC$7M
- Y-Intercept (Hong Kong) Ltd$4M
- Aquatic Capital Management LLC$3M
- MILLENNIUM MANAGEMENT LLC$2M
- VAN ECK ASSOCIATES CORP$1M
- AMERICAN CENTURY COMPANIES INC$814K
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 |
|---|---|---|---|---|
| Tidal Investments LLC added | 8,851,886 | $56M | 22.5% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 6,156,658 | $39M | 15.7% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP trimmed | 4,822,657 | $31M | 12.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 2,345,900 | $15M | 6.0% | 2026-Q2 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,800,000 | $11M | 4.6% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,310,912 | $8M | 3.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,115,440 | $7M | 2.8% | 2026-Q2 |
| MORGAN STANLEY added | 945,026 | $6M | 2.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 786,023 | $5M | 2.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 692,286 | $4M | 1.8% | 2026-Q2 |
| ALPS ADVISORS INC added | 644,224 | $4M | 1.6% | 2026-Q2 |
| U S GLOBAL INVESTORS INC added | 610,000 | $4M | 1.5% | 2026-Q2 |
| UBS Group AG added | 571,782 | $4M | 1.5% | 2026-Q2 |
| TD Asset Management Inc added | 568,104 | $4M | 1.4% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 563,028 | $4M | 1.4% | 2026-Q2 |
| XTX Topco Ltd added | 470,418 | $3M | 1.2% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 452,156 | $3M | 1.1% | 2026-Q2 |
| Cedrus Wealth Group LLC added | 408,766 | $3M | 1.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 367,652 | $2M | 0.9% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 367,422 | $2M | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 330,673 | $2M | 0.8% | 2026-Q2 |
| Swiss National Bank added | 321,900 | $2M | 0.8% | 2026-Q2 |
| North Star Investment Management Corp. | 300,000 | $2M | 0.8% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 293,572 | $3M | 1.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 273,802 | $2M | 0.7% | 2026-Q2 |
| LPL Financial LLC trimmed | 262,643 | $2M | 0.7% | 2026-Q2 |
| Quadrature Capital Ltd added | 256,064 | $2M | 0.7% | 2026-Q2 |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp added | 197,326 | $1M | 0.5% | 2026-Q2 |
| CIBC Asset Management Inc added | 160,832 | $1M | 0.4% | 2026-Q2 |
| Caisse de depot et placement du Quebec new | 159,423 | $1M | 0.4% | 2026-Q2 |
| Nuveen, LLC added | 152,331 | $965K | 0.4% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 143,129 | $905K | 0.4% | 2026-Q2 |
| Walleye Capital LLC new | 142,615 | $904K | 0.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 122,305 | $794K | 0.3% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 120,648 | $765K | 0.3% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 120,637 | $765K | 0.3% | 2026-Q2 |
| Legal & General Group Plc | 105,633 | $669K | 0.3% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 105,162 | $667K | 0.3% | 2026-Q2 |
| Integrated Advisors Network LLC new | 84,000 | $533K | 0.2% | 2026-Q2 |
| NATIONAL BANK OF CANADA /FI/ added | 81,747 | $514K | 0.2% | 2026-Q2 |
| Aquatic Capital Management LLC trimmed | 73,918 | $469K | 0.2% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 67,033 | $425K | 0.2% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 62,640 | $397K | 0.2% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd trimmed | 61,340 | $389K | 0.2% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd added | 60,064 | $381K | 0.2% | 2026-Q2 |
| StoneX Group Inc. added | 56,872 | $361K | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 53,982 | $342K | 0.1% | 2026-Q2 |
| Patriot Financial Group Insurance Agency, LLC trimmed | 48,781 | $309K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 44,296 | $281K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV new | 43,354 | $275K | 0.1% | 2026-Q2 |
| Alberta Investment Management Corp | 42,789 | $271K | 0.1% | 2026-Q2 |
| Vanguard Investments Australia, Ltd. | 40,351 | $256K | 0.1% | 2026-Q2 |
| CenterBook Partners LP trimmed | 36,296 | $230K | 0.1% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC added | 35,890 | $227K | 0.1% | 2026-Q2 |
| MONETA GROUP INVESTMENT ADVISORS LLC added | 35,000 | $222K | 0.1% | 2026-Q2 |
| TRUIST FINANCIAL CORP new | 33,100 | $210K | 0.1% | 2026-Q2 |
| Focus Partners Wealth added | 31,065 | $197K | 0.1% | 2026-Q2 |
| Pictet Asset Management Holding SA | 31,028 | $197K | 0.1% | 2026-Q2 |
| Convergence Financial, LLC new | 30,352 | $192K | 0.1% | 2026-Q2 |
| Fulcrum Asset Management LLP new | 30,268 | $192K | 0.1% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC new | 29,545 | $187K | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. new | 27,371 | $174K | 0.1% | 2026-Q2 |
| Private Advisor Group, LLC trimmed | 27,252 | $173K | 0.1% | 2026-Q2 |
| Mariner, LLC added | 27,217 | $173K | 0.1% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 26,980 | $171K | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC new | 26,632 | $169K | 0.1% | 2026-Q2 |
| Gotham Asset Management, LLC new | 26,589 | $169K | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP trimmed | 23,364 | $148K | 0.1% | 2026-Q2 |
| Investment Management Corp of Ontario added | 22,900 | $145K | 0.1% | 2026-Q2 |
| TORONTO DOMINION BANK trimmed | 22,656 | $143K | 0.1% | 2026-Q2 |
| Cetera Investment Advisers added | 22,643 | $143K | 0.1% | 2026-Q2 |
| TWO SIGMA SECURITIES, LLC trimmed | 21,790 | $138K | 0.1% | 2026-Q2 |
| Corient Private Wealth LP added | 19,656 | $125K | 0.1% | 2026-Q2 |
| SBI Securities Co., Ltd. added | 18,980 | $120K | 0.0% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 18,568 | $118K | 0.0% | 2026-Q2 |
| Northwest & Ethical Investments L.P. added | 17,650 | $112K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 17,310 | $110K | 0.0% | 2026-Q2 |
| ABBINGTON INVESTMENT GROUP new | 15,852 | $101K | 0.0% | 2026-Q2 |
| State of Wyoming trimmed | 15,445 | $99K | 0.0% | 2026-Q2 |
| Veracity Capital LLC added | 15,389 | $98K | 0.0% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 15,389 | $98K | 0.0% | 2026-Q2 |
| Bank of New York Mellon Corp added | 15,107 | $96K | 0.0% | 2026-Q2 |
| Arkfeld Wealth Strategies, L.L.C. added | 15,000 | $99K | 0.0% | 2026-Q2 |
| Tradition Wealth Management, LLC trimmed | 15,000 | $95K | 0.0% | 2026-Q2 |
| Quantbot Technologies LP trimmed | 14,309 | $91K | 0.0% | 2026-Q2 |
| Chicago Capital, LLC new | 13,952 | $88K | 0.0% | 2026-Q2 |
| Bridgefront Capital, LLC new | 13,665 | $87K | 0.0% | 2026-Q2 |
| Entropy Technologies, LP new | 13,661 | $87K | 0.0% | 2026-Q2 |
| PROFUND ADVISORS LLC trimmed | 12,756 | $81K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 12,685 | $80K | 0.0% | 2026-Q2 |
| Capital Investment Advisors, LLC | 12,617 | $80K | 0.0% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 12,561 | $80K | 0.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 12,466 | $79K | 0.0% | 2026-Q2 |
| Bryn Mawr Trust Advisors, LLC | 12,050 | $76K | 0.0% | 2026-Q2 |
| Frec Markets, Inc. | 12,000 | $76K | 0.0% | 2026-Q2 |
| Axxion S.A. new | 12,000 | $76K | 0.0% | 2026-Q2 |
| Advisory Services Network, LLC | 11,950 | $76K | 0.0% | 2026-Q2 |
| Modern Wealth Management, LLC new | 11,475 | $73K | 0.0% | 2026-Q2 |
| Mountain Capital Investment Advisors Inc. | 11,308 | $72K | 0.0% | 2026-Q2 |
| Swiss Life Asset Management Ltd new | 10,776 | $68K | 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.