Who owns ACH (ACH)
Which tracked institutional funds hold ACH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ACH company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
12 tracked funds added or opened ACH while 32 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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
ACH’s largest tracked holder by dollar value, Coliseum Capital Management, LLC, sizes it at 2.4% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 2.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ACH 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 2025-Q4 and 2026-Q1, across 142 tracked filers holding ACH, 67 increased or opened the position and 107 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 ACH between the 2025-Q4 and 2026-Q1 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 6
- VANGUARD CAPITAL MANAGEMENT LLC$7M
- VANGUARD PORTFOLIO MANAGEMENT LLC$6M
- VANGUARD FIDUCIARY TRUST CO$1M
- Vanguard Global Advisers, LLC$964K
- Massar Capital Management, LP$960K
- NORGES BANK$760K
Full exits 8
- VANGUARD GROUP INC$18M
- JANE STREET GROUP, LLC$3M
- TWO SIGMA ADVISERS, LP$2M
- STONEHILL CAPITAL MANAGEMENT LLC$959K
- Jump Financial, LLC$747K
- Trexquant Investment LP$734K
Largest adds
- BANK OF AMERICA CORP /DE/$3M
- MARSHALL WACE, LLP$3M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$721K
- WOLVERINE ASSET MANAGEMENT LLC$608K
- AQR CAPITAL MANAGEMENT LLC$297K
- GOLDMAN SACHS GROUP INC$281K
Largest trims
- Coliseum Capital Management, LLC$7M
- MILLENNIUM MANAGEMENT LLC$6M
- CITADEL ADVISORS LLC$4M
- BlackRock, Inc.$3M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$3M
- DIMENSIONAL FUND ADVISORS LP$2M
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 |
|---|---|---|---|---|
| Coliseum Capital Management, LLC | 13,100,807 | $30M | 12.2% | 2026-Q1 |
| BlackRock, Inc. trimmed | 5,235,300 | $12M | 4.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 3,635,526 | $8M | 3.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 3,407,075 | $8M | 3.2% | 2026-Q1 |
| Invenomic Capital Management LP trimmed | 3,368,975 | $8M | 3.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 3,311,601 | $8M | 3.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,282,174 | $7M | 3.1% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,651,152 | $6M | 2.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,606,620 | $6M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,835,910 | $4M | 1.7% | 2026-Q1 |
| PARADIGM CAPITAL MANAGEMENT INC/NY added | 1,786,400 | $4M | 1.7% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,761,004 | $4M | 1.6% | 2026-Q1 |
| STATE STREET CORP added | 1,629,956 | $4M | 1.5% | 2026-Q1 |
| Dana Investment Advisors, Inc. trimmed | 1,485,097 | $3M | 1.4% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 1,380,728 | $3M | 1.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,201,269 | $3M | 1.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 941,173 | $2M | 0.9% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 907,096 | $2M | 0.8% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 718,256 | $2M | 0.7% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC added | 695,415 | $2M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 600,961 | $1M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 474,788 | $1M | 0.4% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 468,097 | $1M | 0.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 424,778 | $968K | 0.4% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 422,674 | $964K | 0.4% | 2026-Q1 |
| Massar Capital Management, LP new | 421,120 | $960K | 0.4% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 360,210 | $821K | 0.3% | 2026-Q1 |
| NORGES BANK trimmed | 84,155 | $760K | 0.3% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 317,913 | $725K | 0.3% | 2026-Q1 |
| UBS Group AG trimmed | 308,734 | $704K | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 259,792 | $592K | 0.2% | 2026-Q1 |
| Linden Thomas Advisory Services, LLC added | 240,379 | $548K | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 235,139 | $536K | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 234,946 | $536K | 0.2% | 2026-Q1 |
| Kennondale Capital Management LLC | 225,890 | $515K | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 215,552 | $491K | 0.2% | 2026-Q1 |
| STRS OHIO | 181,200 | $413K | 0.2% | 2026-Q1 |
| State of Wyoming added | 168,850 | $385K | 0.2% | 2026-Q1 |
| XTX Topco Ltd trimmed | 161,602 | $368K | 0.2% | 2026-Q1 |
| Invesco Ltd. added | 156,351 | $356K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 6,318,285 | $18M | 7.2% | 2025-Q4 stale |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 1,149,732 | $10M | 4.3% | 2025-Q2 stale |
| J. Goldman & Co LP new | 734,797 | $7M | 2.7% | 2025-Q2 stale |
| TOWLE & CO added | 1,247,959 | $6M | 2.5% | 2025-Q3 stale |
| Freestone Grove Partners LP added | 541,967 | $5M | 2.0% | 2025-Q1 stale |
| FEDERATED HERMES, INC. added | 428,598 | $4M | 1.6% | 2025-Q1 stale |
| TEACHER RETIREMENT SYSTEM OF TEXAS added | 373,097 | $3M | 1.4% | 2025-Q2 stale |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 364,258 | $3M | 1.4% | 2025-Q2 stale |
| JANE STREET GROUP, LLC trimmed | 1,070,909 | $3M | 1.2% | 2025-Q4 stale |
| BALYASNY ASSET MANAGEMENT L.P. added | 542,036 | $3M | 1.1% | 2025-Q3 stale |
| LHM, INC. added | 495,832 | $2M | 1.0% | 2025-Q3 stale |
| PUBLIC SECTOR PENSION INVESTMENT BOARD added | 251,693 | $2M | 0.9% | 2025-Q2 stale |
| VICTORY CAPITAL MANAGEMENT INC added | 249,159 | $2M | 0.9% | 2025-Q2 stale |
| FIRST TRUST ADVISORS LP added | 242,040 | $2M | 0.9% | 2025-Q1 stale |
| Nantahala Capital Management, LLC new | 200,000 | $2M | 0.7% | 2025-Q1 stale |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed | 174,654 | $2M | 0.7% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP added | 542,472 | $2M | 0.6% | 2025-Q4 stale |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 169,380 | $1M | 0.6% | 2025-Q1 stale |
| CAXTON ASSOCIATES LLP new | 151,933 | $1M | 0.6% | 2025-Q2 stale |
| Mutual Advisors, LLC added | 228,376 | $1M | 0.5% | 2025-Q3 stale |
| Nebula Research & Development LLC trimmed | 122,539 | $1M | 0.5% | 2025-Q2 stale |
| Brooklyn Investment Group added | 216,372 | $1M | 0.4% | 2025-Q3 stale |
| PANAGORA ASSET MANAGEMENT INC trimmed | 111,947 | $1M | 0.4% | 2025-Q2 stale |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 211,119 | $1M | 0.4% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP added | 206,933 | $993K | 0.4% | 2025-Q3 stale |
| STONEHILL CAPITAL MANAGEMENT LLC new | 342,583 | $959K | 0.4% | 2025-Q4 stale |
| GABELLI FUNDS LLC trimmed | 188,000 | $902K | 0.4% | 2025-Q3 stale |
| Counterpoint Mutual Funds LLC added | 98,955 | $900K | 0.4% | 2025-Q2 stale |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | 95,897 | $873K | 0.4% | 2025-Q2 stale |
| Cinctive Capital Management LP added | 92,197 | $833K | 0.3% | 2025-Q1 stale |
| Susquehanna Portfolio Strategies, LLC added | 89,449 | $814K | 0.3% | 2025-Q2 stale |
| Semanteon Capital Management, LP new | 88,989 | $804K | 0.3% | 2025-Q1 stale |
| Jump Financial, LLC trimmed | 266,684 | $747K | 0.3% | 2025-Q4 stale |
| Trexquant Investment LP trimmed | 262,193 | $734K | 0.3% | 2025-Q4 stale |
| Swiss National Bank added | 148,500 | $713K | 0.3% | 2025-Q3 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 75,312 | $685K | 0.3% | 2025-Q2 stale |
| Saba Capital Management, L.P. trimmed | 74,255 | $676K | 0.3% | 2025-Q2 stale |
| ARISTEIA CAPITAL, L.L.C. added | 70,901 | $645K | 0.3% | 2025-Q2 stale |
| LAZARD ASSET MANAGEMENT LLC added | 68,547 | $623K | 0.3% | 2025-Q2 stale |
| Woodline Partners LP new | 67,880 | $613K | 0.3% | 2025-Q1 stale |
| Cubist Systematic Strategies, LLC trimmed | 123,630 | $593K | 0.2% | 2025-Q3 stale |
| Advisors Preferred, LLC added | 114,898 | $577K | 0.2% | 2025-Q3 stale |
| SummerHaven Investment Management, LLC added | 61,555 | $560K | 0.2% | 2025-Q2 stale |
| CANADA PENSION PLAN INVESTMENT BOARD added | 185,300 | $519K | 0.2% | 2025-Q4 stale |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ trimmed | 181,735 | $509K | 0.2% | 2025-Q4 stale |
| Thrivent Financial for Lutherans trimmed | 53,999 | $491K | 0.2% | 2025-Q2 stale |
| PDT Partners, LLC trimmed | 101,609 | $488K | 0.2% | 2025-Q3 stale |
| Amundi added | 45,498 | $423K | 0.2% | 2025-Q2 stale |
| FRANKLIN RESOURCES INC trimmed | 45,575 | $415K | 0.2% | 2025-Q2 stale |
| State of Alaska, Department of Revenue added | 43,748 | $397K | 0.2% | 2025-Q2 stale |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management added | 42,485 | $387K | 0.2% | 2025-Q2 stale |
| FourThought Financial Partners, LLC new | 76,939 | $369K | 0.2% | 2025-Q3 stale |
| Creative Planning added | 74,107 | $356K | 0.1% | 2025-Q3 stale |
| Corebridge Financial, Inc. trimmed | 39,339 | $355K | 0.1% | 2025-Q1 stale |
| Illinois Municipal Retirement Fund added | 37,847 | $342K | 0.1% | 2025-Q1 stale |
| Jain Global LLC trimmed | 121,655 | $341K | 0.1% | 2025-Q4 stale |
| Quantbot Technologies LP added | 37,562 | $339K | 0.1% | 2025-Q1 stale |
| Point72 Asia (Singapore) Pte. Ltd. added | 69,451 | $333K | 0.1% | 2025-Q3 stale |
| Louisiana State Employees Retirement System trimmed | 34,300 | $312K | 0.1% | 2025-Q2 stale |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 61,925 | $297K | 0.1% | 2025-Q3 stale |
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.