Who owns ITHAU
Which tracked institutional funds hold ITHAU, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ITHAU company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
ITHAU’s largest tracked holder by dollar value, TENOR CAPITAL MANAGEMENT Co., L.P., sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.1% 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 ITHAU 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
Only one quarter (2025-Q4) of 13F history is available — a quarter-over-quarter accumulation delta needs two.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
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.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P. new | 1,250,000 | $12M | 6.0% | 2025-Q4 |
| ARISTEIA CAPITAL, L.L.C. new | 1,250,000 | $12M | 6.0% | 2025-Q4 |
| Magnetar Financial LLC new | 1,250,000 | $12M | 6.0% | 2025-Q4 |
| AQR Arbitrage LLC new | 1,042,890 | $10M | 5.0% | 2025-Q4 |
| Glazer Capital, LLC new | 867,124 | $9M | 4.2% | 2025-Q4 |
| Wealthspring Capital LLC trimmed | 862,030 | $9M | 4.1% | 2026-Q1 |
| Polar Asset Management Partners Inc. new | 800,000 | $8M | 3.9% | 2025-Q4 |
| Linden Advisors LP new | 800,000 | $8M | 3.9% | 2025-Q4 |
| MMCAP International Inc. SPC | 800,000 | $8M | 3.9% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT new | 660,689 | $7M | 3.2% | 2025-Q4 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. new | 600,000 | $6M | 2.9% | 2025-Q4 |
| CSS LLC/IL new | 593,710 | $6M | 2.9% | 2025-Q4 |
| BNP PARIBAS FINANCIAL MARKETS new | 557,110 | $6M | 2.7% | 2025-Q4 |
| HGC Investment Management Inc. trimmed | 550,000 | $5M | 2.6% | 2026-Q1 |
| Radcliffe Capital Management, L.P. new | 525,732 | $5M | 2.5% | 2025-Q4 |
| Alberta Investment Management Corp new | 400,000 | $4M | 1.9% | 2025-Q4 |
| OMERS ADMINISTRATION Corp | 400,000 | $4M | 1.9% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP new | 362,500 | $4M | 1.7% | 2025-Q4 |
| Periscope Capital Inc. new | 350,000 | $3M | 1.7% | 2025-Q4 |
| LMR Partners LLP | 350,000 | $3M | 1.7% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC new | 350,000 | $3M | 1.7% | 2025-Q4 |
| Mint Tower Capital Management B.V. new | 300,000 | $3M | 1.4% | 2025-Q4 |
| Lineage Point Capital LP new | 300,000 | $3M | 1.4% | 2025-Q4 |
| First Trust Capital Management L.P. new | 300,000 | $3M | 1.4% | 2025-Q4 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC new | 300,000 | $3M | 1.4% | 2025-Q4 |
| MOORE CAPITAL MANAGEMENT, LP new | 300,000 | $3M | 1.4% | 2025-Q4 |
| TORONTO DOMINION BANK added | 253,000 | $3M | 1.2% | 2026-Q1 |
| Jain Global LLC trimmed | 250,730 | $3M | 1.2% | 2026-Q1 |
| Context Capital Management, LLC new | 250,000 | $2M | 1.2% | 2025-Q4 |
| Saba Capital Management, L.P. new | 250,000 | $2M | 1.2% | 2025-Q4 |
| Westchester Capital Management, LLC | 250,000 | $2M | 1.2% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 250,000 | $2M | 1.2% | 2025-Q4 |
| Verition Fund Management LLC new | 217,273 | $2M | 1.0% | 2025-Q4 |
| MILLENNIUM MANAGEMENT LLC trimmed | 200,000 | $2M | 1.0% | 2026-Q2 |
| WOLVERINE ASSET MANAGEMENT LLC new | 200,000 | $2M | 1.0% | 2025-Q4 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 200,000 | $2M | 1.0% | 2025-Q4 |
| BERKLEY W R CORP new | 198,200 | $2M | 1.0% | 2025-Q4 |
| Shaolin Capital Management LLC new | 150,000 | $1M | 0.7% | 2025-Q4 |
| KRYGER CAPITAL Ltd new | 150,000 | $1M | 0.7% | 2025-Q4 |
| STATE OF WISCONSIN INVESTMENT BOARD new | 130,000 | $1M | 0.6% | 2025-Q4 |
| HEIGHTS CAPITAL MANAGEMENT, INC new | 110,000 | $1M | 0.5% | 2025-Q4 |
| TIG Advisors, LLC | 100,000 | $998K | 0.5% | 2026-Q1 |
| WHITEBOX ADVISORS LLC new | 100,000 | $998K | 0.5% | 2025-Q4 |
| JPMORGAN CHASE & CO new | 100,000 | $996K | 0.5% | 2026-Q1 |
| SYQUANT CAPITAL SAS | 100,000 | $996K | 0.5% | 2026-Q1 |
| Ghisallo Capital Management LLC new | 100,000 | $996K | 0.5% | 2025-Q4 |
| METEORA CAPITAL, LLC new | 99,800 | $996K | 0.5% | 2025-Q4 |
| HRT FINANCIAL LP trimmed | 99,933 | $995K | 0.5% | 2026-Q1 |
| Crossingbridge Advisors, LLC new | 75,000 | $748K | 0.4% | 2025-Q4 |
| Virtu Financial LLC new | 73,257 | $730K | 0.4% | 2025-Q4 |
| BOOTHBAY FUND MANAGEMENT, LLC | 62,500 | $622K | 0.3% | 2026-Q1 |
| Quarry LP trimmed | 50,000 | $499K | 0.2% | 2026-Q1 |
| K2 PRINCIPAL FUND, L.P. new | 50,000 | $499K | 0.2% | 2025-Q4 |
| Sandia Investment Management LP new | 50,000 | $499K | 0.2% | 2025-Q4 |
| L1 Global Manager Pty Ltd new | 50,000 | $499K | 0.2% | 2025-Q4 |
| Schonfeld Strategic Advisors LLC new | 50,000 | $499K | 0.2% | 2025-Q4 |
| Stoic Point Capital Management LLC | 50,000 | $498K | 0.2% | 2026-Q1 |
| Cable Car Capital, LP | 50,000 | $498K | 0.2% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC | 50,000 | $498K | 0.2% | 2026-Q1 |
| Centiva Capital, LP new | 50,000 | $498K | 0.2% | 2025-Q4 |
| Clear Street Group Inc. trimmed | 49,734 | $495K | 0.2% | 2026-Q1 |
| Yakira Capital Management, Inc. trimmed | 48,969 | $488K | 0.2% | 2026-Q1 |
| ABC ARBITRAGE SA new | 40,000 | $399K | 0.2% | 2025-Q4 |
| DELTEC ASSET MANAGEMENT LLC new | 25,000 | $249K | 0.1% | 2025-Q4 |
| Calamos Advisors LLC | 24,573 | $245K | 0.1% | 2026-Q1 |
| PenderFund Capital Management Ltd. new | 10,000 | $100K | 0.0% | 2025-Q4 |
| Tuttle Capital Management, LLC trimmed | 10,000 | $100K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA new | 5,000 | $50K | 0.0% | 2025-Q4 |
| UBS Group AG new | 99 | $986 | 0.0% | 2026-Q1 |
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.