MACIW · Melar Acquisition Corp. I · Holdings
Substantial doubt about the company's ability to continue as a going concern.
“The working capital deficit and the expectation of significant future costs raises substantial doubt about the Company's ability to continue as a going concern within one year after the date that the accompanying unaudited condensed consolidated financial statements are issued. Additionally, Management has determined that the mandatory liquidation and subsequent dissolution, should the Company be unable to complete a Business Combination by the end of the Combination Period, raises substantial doubt about the Company's ability to continue as a going concern. No adjustments have been made to the carrying amounts of assets or liabilities should the Company be required to liquidate after December 20, 2026. Management plans to address this uncertainty through the closing of its proposed Business Combination. There is no assurance that the Company's plans to consummate a Business Combination will be successful within the Combination Period. The accompanying unaudited condensed consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.”View the 10-Q filed Aug 13, 2026
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Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Who Holds MACIW
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 30 filers, like-for-like change -0.5%; actively managed books -0.5%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 51.2% | 16 | +0.3% |
| Exempt adviser | 14.5% | 2 | 0.0% |
| Adviser | 5.6% | 1 | 0.0% |
| Bank | 4.9% | 2 | -6.4% |
| Non-US | 9.8% | 4 | 0.0% |
| Broker-dealer | 0.0% | 0 | — |
| Insurer | 0.0% | 0 | — |
| Unknown | 14.0% | 5 | -1.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Systematic-like | 15.8% | 4 | 0.0% |
| Concentrated | 11.2% | 4 | 0.0% |
| Diversified active | 73.0% | 22 | -0.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Medium turnover | 29.5% | 12 | +0.3% |
| High turnover | 68.9% | 17 | -0.8% |
| Low turnover | 0.0% | 0 | — |
| Unknown | 1.6% | 1 | +0.2% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 47.7% | 11 | +0.1% |
| Medium horizon | 15.1% | 2 | -2.5% |
| Long horizon | 11.9% | 8 | +0.8% |
| Unknown | 25.3% | 9 | -0.8% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 23.8% | 8 | -1.6% |
| $1B to $10B | 39.6% | 9 | +0.9% |
| $10B to $100B | 31.8% | 10 | -1.3% |
| $100B or more | 4.8% | 3 | 0.0% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.1% | 1 | new |
| Pooled investment vehicles | 43.0% | 11 | +0.1% |
| Registered funds and BDCs | 2.4% | 1 | 0.0% |
| Charitable organizations | 0.7% | 1 | 0.0% |
| Other investment advisers | 4.8% | 1 | 0.0% |
| Diversified | 0.1% | 1 | 0.0% |
| Unknown | 48.8% | 14 | -1.2% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 48.6% | 14 | +0.1% |
| Private equity funds | 4.8% | 1 | 0.0% |
| Private funds, type not stated | 12.1% | 1 | 0.0% |
| No private funds | 0.1% | 1 | 0.0% |
| Real estate funds | 0.1% | 1 | new |
| Unknown | 34.3% | 12 | -1.8% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 57.5% | 21 | -0.2% |
| Outside the US | 42.5% | 9 | -0.8% |
The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Conviction and Crowding
30 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Shared Holders
Companies MACIW's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | RANG Range Capital Acquisition Corp. | 3 |
| 2 | NMP NMP Acquisition Corp. | 3 |
| 3 | LPBB Launch Two Acquisition Corp. | 4 |
| 4 | CRAC Crown Reserve Acquisition Corp. I | 3 |
| 5 | ANSC Agriculture & Natural Solutions Acquisition Corp | 4 |
| 6 | COPL Copley Acquisition Corp | 3 |
| 7 | ZKP Lafayette Digital Acquisition Corp. I | 3 |
| 8 | GTERA Globa Terra Acquisition Corp | 3 |
| 9 | OYSE Oyster Enterprises II Acquisition Corp | 3 |
| 10 | POLE Andretti Acquisition Corp. II | 3 |
Shareholder Targets
13F filers that own its peers but not MACIW, quarter ended Jun 30, 2026Found through its holder-overlap peers: RANG, NMP, LPBB, CRAC, ANSC, COPL, ZKP, GTERA, OYSE, POLE, IPCX, KFII, KCHV, SZZL, TACH, EVAC. 94 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Westchester Capital Management, LLC Registered adviser, Diversified active | $155,183,214 14 held | ANSC, KFII, GTERA |
| 2 | Linden Advisors LP Registered adviser, Diversified active | $144,250,916 14 held | IPCX, ZKP, KCHV |
| 3 | WOLVERINE ASSET MANAGEMENT LLC Registered adviser, Diversified active | $136,834,446 16 held | EVAC, ANSC, POLE |
| 4 | TENOR CAPITAL MANAGEMENT Co., L.P. Registered adviser, Diversified active | $132,472,284 12 held | TACH, KFII, SZZL |
| 5 | GLAZER CAPITAL, LLC Registered adviser, Diversified active | $130,140,085 16 held | EVAC, OYSE, KFII |
| 6 | Crossingbridge Advisors, LLC Adviser, Diversified active | $87,653,133 9 held | ANSC, IPCX, TACH |
| 7 | ARISTEIA CAPITAL, L.L.C. Registered adviser, Diversified active | $85,173,715 12 held | ANSC, KCHV, COPL |
| 8 | Radcliffe Capital Management, L.P. Registered adviser, Diversified active | $82,099,621 16 held | EVAC, KFII, TACH |
| 9 | TWO SIGMA INVESTMENTS, LP Registered adviser, Systematic-like | $78,614,653 12 held | EVAC, KFII, TACH |
| 10 | HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $69,951,735 13 held | CRAC, COPL, ANSC |
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
Top Buyers
vs Jun 30, 2026Top Sellers
vs Jun 30, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid StoneX Group Inc. | −4,097 | 25,074 | |
| Small Wealthspring Capital LLC | −1,050 | 292,640 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Small Wealthspring Capital LLC Registered adviser MACIW | — | — | 292,640 | Shares | 2026-11-04 | |
| Micro GRITSTONE ASSET MANAGEMENT LLC Registered adviser MACIW | — | — | 44,092 | Shares | 2026-10-26 | |
| Mid StoneX Group Inc. MACIW | — | — | 25,074 | Shares | 2026-11-03 | |
| Small Periscope Capital Inc. Exempt adviser MACIW | — | — | 148,800 | Shares | 2026-11-06 |