Who owns COCH (COCH)
Which tracked institutional funds hold COCH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See COCH 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
The tracked-fund tape on COCH is one-sided between 2025-Q4 and 2026-Q1: 7 added or opened and 1 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
COCH’s largest tracked holder by dollar value, Q Global Advisors, LLC, sizes it at 2.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 2.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in COCH 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 64 tracked filers holding COCH, 23 increased or opened the position and 14 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
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 COCH 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 3
- Nantahala Capital Management, LLC$5M
- Bleichroeder LP$4M
- VANGUARD CAPITAL MANAGEMENT LLC$586K
Largest adds
- Q Global Advisors, LLC$4M
- Silver Rock Financial LP$2M
- TENOR CAPITAL MANAGEMENT Co., L.P.$1M
- GEODE CAPITAL MANAGEMENT, LLC$282K
Largest trims
- METEORA CAPITAL, LLC$19M
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 |
|---|---|---|---|---|
| Q Global Advisors, LLC | 129,120 | $9M | 25.6% | 2026-Q1 |
| Silver Rock Financial LP | 81,975 | $5M | 15.5% | 2026-Q1 |
| Nantahala Capital Management, LLC new | 7,650,000 | $5M | 14.5% | 2026-Q1 |
| Bleichroeder LP new | 6,250,000 | $4M | 11.8% | 2026-Q1 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 50,000 | $3M | 9.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 881,672 | $586K | 1.7% | 2026-Q1 |
| DSG Capital Advisors, LLC added | 625,000 | $416K | 1.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 521,824 | $347K | 1.0% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 294,721 | $196K | 0.6% | 2026-Q1 |
| Focus Partners Wealth | 212,655 | $141K | 0.4% | 2026-Q1 |
| Arcus Capital Partners, LLC | 187,573 | $125K | 0.4% | 2026-Q1 |
| ARISTEIA CAPITAL, L.L.C. | 1,143,978 | $79K | 0.2% | 2026-Q1 |
| NORTHERN TRUST CORP added | 111,050 | $74K | 0.2% | 2026-Q1 |
| Oasis Management Co Ltd. | 100,000 | $67K | 0.2% | 2026-Q1 |
| CIBC Bancorp USA Inc. new | 77,887 | $52K | 0.1% | 2026-Q1 |
| MORGAN STANLEY added | 73,900 | $49K | 0.1% | 2026-Q1 |
| UBS Group AG added | 70,459 | $47K | 0.1% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 534,728 | $35K | 0.1% | 2026-Q1 |
| BlackRock, Inc. added | 47,514 | $32K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 36,462 | $24K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 35,297 | $23K | 0.1% | 2026-Q1 |
| Polar Asset Management Partners Inc. | 297,100 | $21K | 0.1% | 2026-Q1 |
| Clear Street Group Inc. trimmed | 301,016 | $20K | 0.1% | 2026-Q1 |
| Lantern Wealth Advisors, LLC new | 30,000 | $20K | 0.1% | 2026-Q1 |
| Athos Capital Ltd | 28,588 | $19K | 0.1% | 2026-Q1 |
| LPL Financial LLC | 28,401 | $19K | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS | 283,333 | $19K | 0.1% | 2026-Q1 |
| METEORA CAPITAL, LLC | 28,051 | $19K | 0.1% | 2026-Q1 |
| Bracebridge Capital, LLC | 262,156 | $17K | 0.0% | 2026-Q1 |
| SummitTX Capital, L.P. new | 243,374 | $16K | 0.0% | 2026-Q1 |
| STATE STREET CORP | 23,872 | $16K | 0.0% | 2026-Q1 |
| Diametric Capital, LP trimmed | 236,254 | $16K | 0.0% | 2026-Q1 |
| JANE STREET GROUP, LLC | 208,166 | $14K | 0.0% | 2026-Q1 |
| Sculptor Capital LP added | 182,142 | $13K | 0.0% | 2026-Q1 |
| WHITEBOX ADVISORS LLC | 174,000 | $12K | 0.0% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP | 166,666 | $11K | 0.0% | 2026-Q1 |
| Vestcor Inc | 166,666 | $11K | 0.0% | 2026-Q1 |
| CWM, LLC new | 16,500 | $11K | 0.0% | 2026-Q1 |
| AFG FIDUCIARY SERVICES LIMITED PARTNERSHIP new | 12,000 | $8K | 0.0% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP new | 12,629 | $8K | 0.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. | 113,431 | $8K | 0.0% | 2026-Q1 |
| BlueStem Wealth Partners, LLC | 10,454 | $7K | 0.0% | 2026-Q1 |
| Calamos Advisors LLC | 100,000 | $7K | 0.0% | 2026-Q1 |
| DUPONT CAPITAL MANAGEMENT CORP | 100,000 | $7K | 0.0% | 2026-Q1 |
| Ballew Advisors, Inc | 10,121 | $7K | 0.0% | 2026-Q1 |
| Empyrean Capital Partners, LP | 75,000 | $5K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) added | 5,665 | $4K | 0.0% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 54,190 | $4K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 3,788 | $3K | 0.0% | 2026-Q1 |
| Marathon Trading Investment Management LLC | 32,888 | $2K | 0.0% | 2026-Q1 |
| Farther Finance Advisors, LLC | 3,000 | $2K | 0.0% | 2026-Q1 |
| Ancora Advisors LLC | 24,522 | $2K | 0.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 23,833 | $2K | 0.0% | 2026-Q1 |
| Limestone Investment Advisors LP | 23,467 | $2K | 0.0% | 2026-Q1 |
| OMERS ADMINISTRATION Corp | 23,333 | $2K | 0.0% | 2026-Q1 |
| American Capital Advisory, LLC | 2,000 | $1K | 0.0% | 2026-Q1 |
| Hunting Hill Global Capital, LLC | 18,395 | $1K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN | 1,738 | $1K | 0.0% | 2026-Q1 |
| TWO SIGMA SECURITIES, LLC trimmed | 15,968 | $1K | 0.0% | 2026-Q1 |
| AE Wealth Management LLC | 15,152 | $1K | 0.0% | 2026-Q1 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 4,599 | $305 | 0.0% | 2026-Q1 |
| CITIGROUP INC added | 215 | $143 | 0.0% | 2026-Q1 |
| Rockefeller Capital Management L.P. new | 933 | $62 | 0.0% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP | 5 | $3 | 0.0% | 2026-Q1 |
| Clear Street Derivatives LLC | 129,872 | $5M | 13.0% | 2025-Q2 stale |
| Atlas Merchant Capital LLC | 555,527 | $431K | 1.2% | 2025-Q3 stale |
| VANGUARD GROUP INC added | 347,300 | $230K | 0.7% | 2025-Q4 stale |
| CITADEL ADVISORS LLC added | 88,440 | $58K | 0.2% | 2025-Q4 stale |
| CIBC Private Wealth Group LLC | 77,887 | $51K | 0.1% | 2025-Q4 stale |
| HighPoint Advisor Group LLC | 38,662 | $30K | 0.1% | 2025-Q3 stale |
| Corient Private Wealth LLC | 38,162 | $25K | 0.1% | 2025-Q4 stale |
| Virtu Financial LLC added | 35,079 | $23K | 0.1% | 2025-Q4 stale |
| Sandia Investment Management LP trimmed | 514,702 | $20K | 0.1% | 2025-Q4 stale |
| Vanguard Personalized Indexing Management, LLC new | 19,015 | $13K | 0.0% | 2025-Q4 stale |
| CLEAR STREET LLC trimmed | 301,367 | $11K | 0.0% | 2025-Q2 stale |
| Man Group plc | 183,191 | $9K | 0.0% | 2025-Q2 stale |
| Antara Capital LP | 200,000 | $7K | 0.0% | 2025-Q1 stale |
| Walleye Trading LLC trimmed | 153,825 | $6K | 0.0% | 2025-Q3 stale |
| Safe Harbor Fiduciary, LLC | 2,500 | $4K | 0.0% | 2025-Q2 stale |
| CANTOR FITZGERALD, L. P. | 93,480 | $3K | 0.0% | 2025-Q2 stale |
| NOMURA HOLDINGS INC | 66,666 | $2K | 0.0% | 2025-Q1 stale |
| Fortitude Family Office, LLC new | 1,978 | $1K | 0.0% | 2025-Q4 stale |
| CAAS CAPITAL MANAGEMENT LP | 23,467 | $774 | 0.0% | 2025-Q1 stale |
| BARCLAYS PLC new | 203 | $157 | 0.0% | 2025-Q3 stale |
| JPMORGAN CHASE & CO trimmed | 19 | $25 | 0.0% | 2025-Q1 stale |
| SBI Securities Co., Ltd. trimmed | 1 | $1 | 0.0% | 2025-Q3 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 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.