Who owns Melar Acquisition Corp. I (MACI)
Which tracked institutional funds hold MACI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MACI company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 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 MACI while 6 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
MACI’s largest tracked holder by dollar value, METEORA CAPITAL, LLC, 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 MACI 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 52 tracked filers holding MACI, 12 increased or opened the position and 15 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 MACI 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
- JPMORGAN CHASE & CO$3M
- HIGHBRIDGE CAPITAL MANAGEMENT LLC$3M
Full exits 1
- TWO SIGMA INVESTMENTS, LP$2M
Largest adds
- MIZUHO SECURITIES USA LLC$3M
- Crossingbridge Advisors, LLC$2M
- BERKLEY W R CORP$2M
- TORONTO DOMINION BANK$555K
- RiverPark Advisors, LLC$448K
Largest trims
- METEORA CAPITAL, LLC$7M
- HGC Investment Management Inc.$2M
- GLAZER CAPITAL, LLC$2M
- Karpus Management, Inc.$2M
- Periscope Capital Inc.$608K
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 |
|---|---|---|---|---|
| METEORA CAPITAL, LLC added | 345,677 | $41M | 20.9% | 2026-Q1 |
| LMR Partners LLP added | 1,485,000 | $16M | 8.1% | 2026-Q1 |
| First Trust Capital Management L.P. | 1,400,000 | $15M | 7.6% | 2026-Q1 |
| MIZUHO SECURITIES USA LLC added | 1,250,727 | $13M | 6.8% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 1,026,683 | $11M | 5.6% | 2026-Q1 |
| BERKLEY W R CORP added | 998,963 | $11M | 5.4% | 2026-Q1 |
| AQR Arbitrage LLC added | 996,499 | $11M | 5.4% | 2026-Q1 |
| Karpus Management, Inc. trimmed | 988,505 | $11M | 5.4% | 2026-Q1 |
| Cable Car Capital, LP | 492,500 | $5M | 2.7% | 2026-Q1 |
| Wealthspring Capital LLC added | 447,964 | $5M | 2.4% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 426,939 | $5M | 2.3% | 2026-Q1 |
| Westchester Capital Management, LLC | 424,707 | $5M | 2.3% | 2026-Q1 |
| GLAZER CAPITAL, LLC trimmed | 398,589 | $4M | 2.2% | 2026-Q1 |
| Magnetar Financial LLC | 371,250 | $4M | 2.0% | 2026-Q1 |
| Crossingbridge Advisors, LLC added | 355,236 | $4M | 1.9% | 2026-Q1 |
| L1 Global Manager Pty Ltd | 335,000 | $4M | 1.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC | 299,331 | $3M | 1.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 288,804 | $3M | 1.6% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed | 288,804 | $3M | 1.6% | 2026-Q1 |
| RiverPark Advisors, LLC added | 225,333 | $2M | 1.2% | 2026-Q1 |
| Periscope Capital Inc. trimmed | 125,000 | $1M | 0.7% | 2026-Q1 |
| DELTEC ASSET MANAGEMENT LLC | 100,000 | $1M | 0.5% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP added | 75,000 | $808K | 0.4% | 2026-Q1 |
| Dakota Wealth Management | 37,500 | $404K | 0.2% | 2026-Q1 |
| HEIGHTS CAPITAL MANAGEMENT, INC trimmed | 34,755 | $375K | 0.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC | 26,490 | $285K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC | 20,514 | $221K | 0.1% | 2026-Q1 |
| Tuttle Capital Management, LLC | 15,000 | $162K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP | 10,000 | $107K | 0.1% | 2026-Q1 |
| Polar Asset Management Partners Inc. trimmed | 742,500 | $89K | 0.0% | 2026-Q1 |
| Saba Capital Management, L.P. | 438,551 | $55K | 0.0% | 2026-Q1 |
| CSS LLC/IL | 375,778 | $45K | 0.0% | 2026-Q1 |
| TORONTO DOMINION BANK added | 318,056 | $38K | 0.0% | 2026-Q1 |
| Shaolin Capital Management LLC | 250,081 | $30K | 0.0% | 2026-Q1 |
| K2 PRINCIPAL FUND, L.P. trimmed | 195,777 | $23K | 0.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 162,500 | $21K | 0.0% | 2026-Q1 |
| Hudson Bay Capital Management LP trimmed | 162,500 | $20K | 0.0% | 2026-Q1 |
| Alberta Investment Management Corp | 162,500 | $20K | 0.0% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 162,088 | $19K | 0.0% | 2026-Q1 |
| HGC Investment Management Inc. trimmed | 150,528 | $18K | 0.0% | 2026-Q1 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC trimmed | 149,999 | $18K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS | 125,905 | $15K | 0.0% | 2026-Q1 |
| Verition Fund Management LLC | 99,000 | $13K | 0.0% | 2026-Q1 |
| Clear Street Group Inc. | 95,226 | $11K | 0.0% | 2026-Q1 |
| GRITSTONE ASSET MANAGEMENT LLC | 44,092 | $5K | 0.0% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 40,000 | $5K | 0.0% | 2026-Q1 |
| StoneX Group Inc. trimmed | 10,355 | $1K | 0.0% | 2026-Q1 |
| MORGAN STANLEY added | 80 | $862 | 0.0% | 2026-Q1 |
| UBS Group AG added | 4,939 | $593 | 0.0% | 2026-Q1 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 3,760 | $451 | 0.0% | 2026-Q1 |
| RLH Capital LLC new | 11 | $118 | 0.0% | 2026-Q1 |
| Quarry LP | 11 | $118 | 0.0% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 400,000 | $4M | 2.1% | 2025-Q3 stale |
| ATW SPAC MANAGEMENT LLC | 26,490 | $4M | 2.1% | 2025-Q3 stale |
| Schechter Investment Advisors, LLC trimmed | 312,724 | $3M | 1.6% | 2025-Q1 stale |
| TWO SIGMA INVESTMENTS, LP trimmed | 218,703 | $2M | 1.2% | 2025-Q4 stale |
| MIZUHO SECURITIES USA LLC added | 126,753 | $1M | 0.7% | 2025-Q1 stale |
| Virtu Financial LLC added | 85,918 | $902K | 0.5% | 2025-Q2 stale |
| BCK Capital Management LP added | 68,874 | $723K | 0.4% | 2025-Q3 stale |
| ABC ARBITRAGE SA new | 20,000 | $213K | 0.1% | 2025-Q4 stale |
| Centiva Capital, LP trimmed | 100,000 | $100K | 0.1% | 2025-Q3 stale |
| MASO CAPITAL PARTNERS Ltd | 162,500 | $25K | 0.0% | 2025-Q3 stale |
| CLEAR STREET LLC added | 1,621 | $17K | 0.0% | 2025-Q2 stale |
| Parallax Volatility Advisers, L.P. added | 43,785 | $7K | 0.0% | 2025-Q3 stale |
| Sandia Investment Management LP added | 25,000 | $4K | 0.0% | 2025-Q4 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.