M3-Brigade Acquisition VI Corp.
MBVIU- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002073928
No open-market purchases or sales by M3-Brigade Acquisition VI Corp. insiders were filed in the last 90 days; 16 institutions reported holding it in 13F filings for Q2 2026, worth $25.2M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in M3-Brigade Acquisition VI Corp. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 77
- +77 vs. Q2 2025
- Shares held
- 30.9M
- +30.9M vs. Q2 2025
- Total value
- $312.3M
- +$312.3M vs. Q2 2025
- New holders
- 77
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MBVIU on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 16 | $25.2M |
| Q1 2026 | 16 | $22.5M |
| Q4 2025 | 26 | $44.1M |
| Q3 2025 | 77 | $312.3M |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding M3-Brigade Acquisition VI Corp.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Highbridge Capital Management LLC | 1,470,000 | $14.9M | 0.75% | +1,470,000 | New |
| Alberta Investment Management Corp | 1,450,000 | $14.7M | 0.11% | +1,450,000 | New |
| Glazer Capital, LLC | 1,329,906 | $13.5M | 0.45% | +1,329,906 | New |
| PEAK6 LLC | 1,250,000 | $12.7M | 0.32% | +1,250,000 | New |
| CNH Partners LLC | 1,141,831 | $11.6M | 0.29% | +1,141,831 | New |
| Picton Mahoney Asset Management | 1,100,000 | $11.1M | 0.14% | +1,100,000 | New |
| Linden Advisors LP | 1,100,000 | $11.1M | 0.07% | +1,100,000 | New |
| MMCAP International Inc. SPC | 1,100,000 | $11.1M | 1.29% | +1,100,000 | New |
| Tenor Capital Management Co., L.P. | 1,100,000 | $11.1M | 0.15% | +1,100,000 | New |
| Magnetar Financial LLC | 1,100,000 | $11.1M | 0.07% | +1,100,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1,100,000 | $11.1M | 0.02% | +1,100,000 | New |
| Polar Asset Management Partners Inc. | 1,100,000 | $11.1M | 0.23% | +1,100,000 | New |
| Two Sigma Investments, LP | 1,005,208 | $10.2M | 0.02% | +1,005,208 | New |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $10.1M | 0.02% | +1,000,000 | New |
| Context Capital Management, LLC | 880,000 | $8.91M | 0.27% | +880,000 | New |
| HGC Investment Management Inc. | 850,000 | $8.60M | 2.10% | +850,000 | New |
| Verition Fund Management LLC | 812,384 | $8.22M | 0.05% | +812,384 | New |
| Shaolin Capital Management LLC | 650,000 | $6.58M | 0.31% | +650,000 | New |
| Omers Administration Corp | 600,000 | $6.07M | 0.04% | +600,000 | New |
| Radcliffe Capital Management, L.P. | 575,000 | $5.82M | 0.36% | +575,000 | New |
| Wealthspring Capital LLC | 560,962 | $5.68M | 1.35% | +560,962 | New |
| Hudson Bay Capital Management LP | 550,000 | $5.57M | 0.03% | +550,000 | New |
| Meteora Capital, LLC | 500,237 | $5.06M | 0.54% | +500,237 | New |
| Mint Tower Capital Management B.V. | 500,000 | $5.06M | 0.65% | +500,000 | New |
| Millennium Management LLC | 475,000 | $4.81M | 0.00% | +475,000 | New |
| Steadfast Capital Management LP | 400,000 | $4.05M | 0.07% | +400,000 | New |
| Rivernorth Capital Management, LLC | 400,000 | $4.05M | 0.23% | +400,000 | New |
| Vivaldi Asset Management, LLC | 400,000 | $4.05M | 0.26% | +400,000 | New |
| Periscope Capital Inc. | 393,300 | $3.98M | 0.97% | +393,300 | New |
| Clear Street Group Inc. | 369,958 | $3.74M | 0.02% | +369,958 | New |
| BNP Paribas Arbitrage, SA | 358,169 | $3.62M | 0.00% | +358,169 | New |
| Aristeia Capital LLC | 350,000 | $3.54M | 0.11% | +350,000 | New |
| Wolverine Asset Management LLC | 330,000 | $3.34M | 0.05% | +330,000 | New |
| Toronto Dominion Bank | 270,840 | $2.74M | 0.01% | +270,840 | New |
| Gabelli & Co Investment Advisers, Inc. | 269,400 | $2.73M | 0.44% | +269,400 | New |
| Mizuho Securities USA LLC | 257,725 | $2.58M | 0.05% | +257,725 | New |
| LMR Partners LLP | 250,000 | $2.53M | 0.03% | +250,000 | New |
| Davidson Kempner Capital Management LP | 250,000 | $2.53M | 0.04% | +250,000 | New |
| Saba Capital Management, L.P. | 247,577 | $2.51M | 0.08% | +247,577 | New |
| Berkley W R Corp | 242,245 | $2.45M | 0.16% | +242,245 | New |
| Gabelli Funds LLC | 230,600 | $2.33M | 0.02% | +230,600 | New |
| Moore Capital Management, LP | 200,000 | $2.02M | 0.04% | +200,000 | New |
| Syquant Capital SAS | 200,000 | $2.02M | 0.58% | +200,000 | New |
| Readystate Asset Management LP | 200,000 | $2.02M | 0.10% | +200,000 | New |
| StoneX Group Inc. | 182,051 | $1.84M | 0.08% | +182,051 | New |
| Whitebox Advisors LLC | 150,000 | $1.52M | 0.03% | +150,000 | New |
| Cantor Fitzgerald, L. P. | 116,500 | $1.18M | 0.02% | +116,500 | New |
| Bulldog Investors, LLP | 115,240 | $1.17M | 0.27% | +115,240 | New |
| Schonfeld Strategic Advisors LLC | 110,000 | $1.11M | 0.01% | +110,000 | New |
| Citigroup Inc | 100,000 | $1.01M | 0.00% | +100,000 | New |
| TIG Advisors, LLC | 100,000 | $1.01M | 0.06% | +100,000 | New |
| K2 Principal Fund, L.P. | 100,000 | $1.01M | 0.11% | +100,000 | New |
| Parallax Volatility Advisers, L.P. | 100,000 | $1.01M | 0.03% | +100,000 | New |
| Cable Car Capital LLC | 100,000 | $1.01M | 0.43% | +100,000 | New |
| Walleye Capital LLC | 100,000 | $1.01M | 0.01% | +100,000 | New |
| Ghisallo Capital Management LLC | 100,000 | $1.01M | 0.03% | +100,000 | New |
| Omni Event Management Ltd | 75,976 | $768.9K | 0.09% | +75,976 | New |
| Westchester Capital Management, LLC | 50,000 | $506.0K | 0.03% | +50,000 | New |
| Boothbay Fund Management, LLC | 50,000 | $506.0K | 0.01% | +50,000 | New |
| Governors Lane LP | 50,000 | $506.0K | 0.07% | +50,000 | New |
| Atw Spac Management LLC | 50,000 | $506.0K | 0.64% | +50,000 | New |
| Sandia Investment Management LP | 50,000 | $506.0K | 1.51% | +50,000 | New |
| Quarry LP | 50,000 | $506.0K | 0.12% | +50,000 | New |
| Deltec Asset Management LLC | 25,000 | $253.0K | 0.04% | +25,000 | New |
| Sona Asset Management (US) LLC | 25,000 | $253.0K | 0.01% | +25,000 | New |
| Centiva Capital, LP | 24,999 | $253.0K | 0.02% | +24,999 | New |
| Calamos Advisors LLC | 24,606 | $249.0K | 0.00% | +24,606 | New |
| Tuttle Tactical Management | 20,000 | $202.4K | 0.77% | +20,000 | New |
| Virtu Financial LLC | 12,095 | $122.0K | 0.01% | +12,095 | New |
| Citadel Advisors LLC | 10,829 | $109.6K | 0.00% | +10,829 | New |
| PenderFund Capital Management Ltd. | 10,387 | $105.1K | 0.02% | +10,387 | New |
| State of Wisconsin Investment Board | 10,000 | $101.2K | 0.00% | +10,000 | New |
| Timelo Investment Management Inc. | 10,000 | $101.2K | 0.17% | +10,000 | New |
| TrueMark Investments, LLC | 10,000 | $101.2K | 0.02% | +10,000 | New |
| Royal Bank of Canada | 8,653 | $88.0K | 0.00% | +8,653 | New |
| FNY Investment Advisers, LLC | 5,300 | $53.0K | 0.02% | +5,300 | New |
| UBS Group AG | 2 | $20 | 0.00% | +2 | New |