26 tracked 13F filers disclose a position in MACIW as of the latest SEC 13F filings, a combined $676K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | LMR Partners LLP | $89K | 743K | —Held | Q1 2026 | |
| 2 | Polar Asset Management Partners Inc. | $89K | 743K | —Held | Q1 2026 | |
| 3 | AQR Arbitrage LLC | $53K | 411K | ▼−1.4% Reduced · −6K sh | Q1 2026 | |
| 4 | CSS LLC/IL | $45K | 376K | —Held | Q1 2026 | |
| 5 | METEORA CAPITAL, LLC | $41K | 346K | ▲+0.3% Added · +1K sh | Q1 2026 | |
| 6 | TORONTO DOMINION BANK | $38K | 318K | —Held | Q1 2026 | |
| 7 | Wealthspring Capital LLC | $38K | 294K | —Held | Q2 2026 | |
| 8 | Shaolin Capital Management LLC | $30K | 250K | —Held | Q1 2026 | |
| 9 | Cable Car Capital, LP | $31K | 246K | —Held | Q1 2026 | |
| 10 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $28K | 213K | —Held | Q1 2026 | |
| 11 | Magnetar Financial LLC | $23K | 186K | —Held | Q1 2026 | |
| 12 | D. E. Shaw & Co., Inc. | $21K | 163K | —Held | Q1 2026 | |
| 13 | Hudson Bay Capital Management LP | $20K | 163K | —Held | Q1 2026 | |
| 14 | Alberta Investment Management Corp | $20K | 163K | —Held | Q1 2026 | |
| 15 | PICTON MAHONEY ASSET MANAGEMENT | $19K | 162K | —Held | Q1 2026 | |
| 16 | HGC Investment Management Inc. | $18K | 151K | —Held | Q1 2026 | |
| 17 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $18K | 150K | —Held | Q1 2026 | |
| 18 | BNP PARIBAS FINANCIAL MARKETS | $15K | 126K | —Held | Q1 2026 | |
| 19 | Verition Fund Management LLC | $13K | 99K | —Held | Q1 2026 | |
| 20 | Clear Street Group Inc. | $11K | 95K | —Held | Q1 2026 | |
| 21 | Schonfeld Strategic Advisors LLC | $5K | 40K | ▲+158% Added · +25K sh | Q1 2026 | |
| 22 | MOORE CAPITAL MANAGEMENT, LP | $5K | 38K | —Held | Q1 2026 | |
| 23 | BOOTHBAY FUND MANAGEMENT, LLC | Withheld | 26K | —Held | Q1 2026 | |
| 24 | Quarry LP | $3K | 24K | ▼−5.8% Reduced · −1K sh | Q1 2026 | |
| 25 | StoneX Group Inc. | $1K | 10K | ▼−10% Reduced · −1K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 0 funds opened a new position in MACIW and 2 added to an existing one, while 3 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| CANTOR EQUITY PARTNERS-CL ACEPF | 20 funds | $109.6M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 19 funds | $73.0M |
| REPUBLIC DIGITAL ACQU - 30RDAGW | 19 funds | $2.5M |
| NEW PROVIDENCE ACQUISITION-ANPAC | 18 funds | $115.2M |
| REPUBLIC DIGITAL ACQUIS-CL ARDAG | 18 funds | $114.4M |
| MOUNTAIN LAKE ACQUISITION COMLACR | 18 funds | $2.9M |
| CAL REDWOOD ACQUISITION CORPCRAQR | 18 funds | $2.9M |
| BERTO ACQUISITION CORP - 30TACOW | 18 funds | $1.9M |
| DRUGS MADE IN AMERICA ACQ-RTDMIIR | 18 funds | $1.2M |
| ELECTRONIC ARTS INCEA | 17 funds | $842.2M |
| K&F GROWTH ACQUISITION COR-AKFII | 17 funds | $124.9M |
| LAUNCH TWO ACQUISITION- CL ALPBB | 17 funds | $123.7M |
Ranked by how many of MACIW's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| MACISHS CL A | 26 funds | $131.6M |
| MACIWthis pageWarrant | 26 funds | $961K |
| MACIUUNIT 06/10/2029 | 2 funds | $37K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for MACIW
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MACIW/capital-change-brief"
Use Arkolith's capital_change_brief for MACIW. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MACIW. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.