Who owns TACH (TACH)
Which tracked institutional funds hold TACH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TACH 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
7 tracked funds added or opened TACH while 11 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
TACH’s largest tracked holder by dollar value, TENOR CAPITAL MANAGEMENT Co., L.P., sizes it at 0.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in TACH 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 58 tracked filers holding TACH, 13 increased or opened the position and 21 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 TACH 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 2
- Crossingbridge Advisors, LLC$7M
- SONA ASSET MANAGEMENT (US) LLC$1M
Full exits 2
- Alpine Global Management, LLC$2M
- MIZUHO SECURITIES USA LLC$1M
Largest adds
- TENOR CAPITAL MANAGEMENT Co., L.P.$17M
- D. E. Shaw & Co., Inc.$2M
- BNP PARIBAS FINANCIAL MARKETS$689K
- DLD Asset Management, LP$613K
- MILLENNIUM MANAGEMENT LLC$535K
Largest trims
- METEORA CAPITAL, LLC$33M
- First Trust Capital Management L.P.$4M
- Context Capital Management, LLC$2M
- WOLVERINE ASSET MANAGEMENT LLC$1M
- AQR Arbitrage LLC$628K
- Periscope Capital Inc.$591K
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 |
|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P. | 2,000,000 | $21M | 10.6% | 2026-Q1 |
| AQR Arbitrage LLC added | 1,596,487 | $16M | 8.5% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,423,780 | $15M | 7.5% | 2026-Q1 |
| Context Capital Management, LLC trimmed | 50,000 | $14M | 7.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 1,353,849 | $14M | 7.2% | 2026-Q1 |
| Linden Advisors LP added | 1,200,000 | $12M | 6.4% | 2026-Q1 |
| Ghisallo Capital Management LLC | 1,000,000 | $10M | 5.3% | 2026-Q1 |
| LMR Partners LLP added | 1,000,000 | $10M | 5.3% | 2026-Q1 |
| Hudson Bay Capital Management LP | 914,927 | $9M | 4.9% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP | 854,110 | $9M | 4.5% | 2026-Q1 |
| Crossingbridge Advisors, LLC new | 645,696 | $7M | 3.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC | 536,082 | $6M | 2.8% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 510,525 | $5M | 2.7% | 2026-Q1 |
| Alberta Investment Management Corp | 500,000 | $5M | 2.7% | 2026-Q1 |
| METEORA CAPITAL, LLC trimmed | 430,706 | $4M | 2.3% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 400,000 | $4M | 2.1% | 2026-Q1 |
| First Trust Capital Management L.P. trimmed | 352,297 | $4M | 1.9% | 2026-Q1 |
| Karpus Management, Inc. trimmed | 340,700 | $4M | 1.8% | 2026-Q1 |
| Periscope Capital Inc. added | 325,000 | $3M | 1.7% | 2026-Q1 |
| Lineage Point Capital LP | 300,000 | $3M | 1.6% | 2026-Q1 |
| Mint Tower Capital Management B.V. | 254,748 | $3M | 1.3% | 2026-Q1 |
| Bulldog Investors, LLP | 150,000 | $2M | 0.8% | 2026-Q1 |
| SONA ASSET MANAGEMENT (US) LLC new | 100,000 | $1M | 0.5% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC | 100,000 | $1M | 0.5% | 2026-Q1 |
| GRITSTONE ASSET MANAGEMENT LLC added | 98,764 | $1M | 0.5% | 2026-Q1 |
| Clear Street Group Inc. added | 89,133 | $928K | 0.5% | 2026-Q1 |
| READYSTATE ASSET MANAGEMENT LP | 85,746 | $886K | 0.5% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 67,652 | $699K | 0.4% | 2026-Q1 |
| GLAZER CAPITAL, LLC | 66,118 | $680K | 0.3% | 2026-Q1 |
| Dakota Wealth Management trimmed | 51,250 | $527K | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 50,000 | $520K | 0.3% | 2026-Q1 |
| HGC Investment Management Inc. trimmed | 50,000 | $514K | 0.3% | 2026-Q1 |
| PenderFund Capital Management Ltd. | 36,600 | $378K | 0.2% | 2026-Q1 |
| CSS LLC/IL trimmed | 1,102,593 | $331K | 0.2% | 2026-Q1 |
| Magnetar Financial LLC trimmed | 1,100,000 | $308K | 0.2% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1,000,000 | $270K | 0.1% | 2026-Q1 |
| Westchester Capital Management, LLC trimmed | 672,345 | $175K | 0.1% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 500,000 | $166K | 0.1% | 2026-Q1 |
| Kepos Capital LP new | 13,600 | $140K | 0.1% | 2026-Q1 |
| WHITEBOX ADVISORS LLC trimmed | 400,000 | $133K | 0.1% | 2026-Q1 |
| Shaolin Capital Management LLC trimmed | 341,798 | $113K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 10,570 | $109K | 0.1% | 2026-Q1 |
| Wealthspring Capital LLC trimmed | 370,765 | $96K | 0.0% | 2026-Q1 |
| Lighthouse Investment Partners, LLC | 250,000 | $83K | 0.0% | 2026-Q1 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC trimmed | 249,936 | $83K | 0.0% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 229,100 | $62K | 0.0% | 2026-Q1 |
| K2 PRINCIPAL FUND, L.P. trimmed | 121,750 | $32K | 0.0% | 2026-Q1 |
| TORONTO DOMINION BANK added | 87,351 | $29K | 0.0% | 2026-Q1 |
| DLD Asset Management, LP | 84,313 | $28K | 0.0% | 2026-Q1 |
| HEIGHTS CAPITAL MANAGEMENT, INC trimmed | 60,000 | $20K | 0.0% | 2026-Q1 |
| BERKLEY W R CORP trimmed | 65,156 | $18K | 0.0% | 2026-Q1 |
| UBS Group AG added | 1,728 | $18K | 0.0% | 2026-Q1 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 980 | $10K | 0.0% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 25,000 | $7K | 0.0% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 13,628 | $5K | 0.0% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 13,499 | $4K | 0.0% | 2026-Q1 |
| TWO SIGMA SECURITIES, LLC new | 14,096 | $4K | 0.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 65 | $669 | 0.0% | 2026-Q1 |
| Alpine Global Management, LLC new | 150,000 | $2M | 0.8% | 2025-Q4 stale |
| MIZUHO SECURITIES USA LLC trimmed | 114,187 | $1M | 0.6% | 2025-Q4 stale |
| CLEAR STREET LLC new | 62,684 | $655K | 0.3% | 2025-Q2 stale |
| Parallax Volatility Advisers, L.P. added | 50,212 | $517K | 0.3% | 2025-Q3 stale |
| CANTOR FITZGERALD, L. P. trimmed | 1,680,000 | $506K | 0.3% | 2025-Q3 stale |
| Virtu Financial LLC trimmed | 11,326 | $116K | 0.1% | 2025-Q4 stale |
| Global Retirement Partners, LLC new | 130 | $41 | 0.0% | 2025-Q4 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. new | 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.