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MACI MELAR ACQUISITION CORP. I

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SHS CL A (common), issuer CIK 2016221

16 managers (16 13F filers) reported a position in MACI shares at 2026-06-30, 3,907,383 shares in all. 3 filers opened a position and 24 filers sold out during the quarter.

Managers
16
13F filers
16
New
3
Added
1
Reduced
8
Sold out
24
Shares held by filers
3,907,383

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Karpus Management, Inc.961,303$10.5M0.3%-27,20213F-HRTimeline
BERKLEY W R CORP795,916$8.71M0.43%-203,04713F-HRTimeline
Polar Asset Management Partners Inc.750,000$8.16M0.15%-735,00013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP742,500$8.08M0.06%-742,50013F-HRTimelineGroup
First Trust Capital Management L.P.240,001$2.61M0.15%-1,159,99913F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC135,133$1.47M0.02%-861,36613F-HRTimelineGroup
Periscope Capital Inc.125,000$1.37M0.22%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC44,867$488K<0.01%-254,46413F-HRTimelineGroup
Dakota Wealth Management37,500$408K0.01%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC20,514$223K<0.01%013F-HRTimelineGroup
Tuttle Capital Management, LLC16,154$176K0.12%+1,15413F-HRTimeline
Meteora Capital, LLC15,119$164K0.01%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO12,586$137K<0.01%new13F-HRTimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.10,175$111K<0.01%new13F-HRTimelineGroup
LONGFELLOW INVESTMENT MANAGEMENT CO LLC550$5.98K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY65$707<0.01%-1513F-HRTimelineGroup