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 |
|---|---|---|---|---|---|
| UBS Group AG | 2 | $20 | 0.00% | +2 | New |
| FNY Investment Advisers, LLC | 5,300 | $53.0K | 0.02% | +5,300 | New |
| Royal Bank of Canada | 8,653 | $88.0K | 0.00% | +8,653 | 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 |
| PenderFund Capital Management Ltd. | 10,387 | $105.1K | 0.02% | +10,387 | New |
| Citadel Advisors LLC | 10,829 | $109.6K | 0.00% | +10,829 | New |
| Virtu Financial LLC | 12,095 | $122.0K | 0.01% | +12,095 | New |
| Tuttle Tactical Management | 20,000 | $202.4K | 0.77% | +20,000 | New |
| Calamos Advisors LLC | 24,606 | $249.0K | 0.00% | +24,606 | New |
| Centiva Capital, LP | 24,999 | $253.0K | 0.02% | +24,999 | 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 |
| 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 |
| Omni Event Management Ltd | 75,976 | $768.9K | 0.09% | +75,976 | 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 |
| Schonfeld Strategic Advisors LLC | 110,000 | $1.11M | 0.01% | +110,000 | New |
| Bulldog Investors, LLP | 115,240 | $1.17M | 0.27% | +115,240 | New |
| Cantor Fitzgerald, L. P. | 116,500 | $1.18M | 0.02% | +116,500 | New |
| Whitebox Advisors LLC | 150,000 | $1.52M | 0.03% | +150,000 | New |
| StoneX Group Inc. | 182,051 | $1.84M | 0.08% | +182,051 | 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 |
| Gabelli Funds LLC | 230,600 | $2.33M | 0.02% | +230,600 | New |
| Berkley W R Corp | 242,245 | $2.45M | 0.16% | +242,245 | New |
| Saba Capital Management, L.P. | 247,577 | $2.51M | 0.08% | +247,577 | 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 |
| Mizuho Securities USA LLC | 257,725 | $2.58M | 0.05% | +257,725 | New |
| Gabelli & Co Investment Advisers, Inc. | 269,400 | $2.73M | 0.44% | +269,400 | New |
| Toronto Dominion Bank | 270,840 | $2.74M | 0.01% | +270,840 | New |
| Wolverine Asset Management LLC | 330,000 | $3.34M | 0.05% | +330,000 | New |
| Aristeia Capital LLC | 350,000 | $3.54M | 0.11% | +350,000 | New |
| BNP Paribas Arbitrage, SA | 358,169 | $3.62M | 0.00% | +358,169 | New |
| Clear Street Group Inc. | 369,958 | $3.74M | 0.02% | +369,958 | New |
| Periscope Capital Inc. | 393,300 | $3.98M | 0.97% | +393,300 | 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 |
| Millennium Management LLC | 475,000 | $4.81M | 0.00% | +475,000 | New |
| Mint Tower Capital Management B.V. | 500,000 | $5.06M | 0.65% | +500,000 | New |
| Meteora Capital, LLC | 500,237 | $5.06M | 0.54% | +500,237 | New |
| Hudson Bay Capital Management LP | 550,000 | $5.57M | 0.03% | +550,000 | New |
| Wealthspring Capital LLC | 560,962 | $5.68M | 1.35% | +560,962 | New |
| Radcliffe Capital Management, L.P. | 575,000 | $5.82M | 0.36% | +575,000 | New |
| Omers Administration Corp | 600,000 | $6.07M | 0.04% | +600,000 | New |
| Shaolin Capital Management LLC | 650,000 | $6.58M | 0.31% | +650,000 | New |
| Verition Fund Management LLC | 812,384 | $8.22M | 0.05% | +812,384 | New |
| HGC Investment Management Inc. | 850,000 | $8.60M | 2.10% | +850,000 | New |
| Context Capital Management, LLC | 880,000 | $8.91M | 0.27% | +880,000 | New |
| Adage Capital Partners GP, L.L.C. | 1,000,000 | $10.1M | 0.02% | +1,000,000 | New |
| Two Sigma Investments, LP | 1,005,208 | $10.2M | 0.02% | +1,005,208 | New |
| Polar Asset Management Partners Inc. | 1,100,000 | $11.1M | 0.23% | +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 |
| Picton Mahoney Asset Management | 1,100,000 | $11.1M | 0.14% | +1,100,000 | New |
| CNH Partners LLC | 1,141,831 | $11.6M | 0.29% | +1,141,831 | New |
| PEAK6 LLC | 1,250,000 | $12.7M | 0.32% | +1,250,000 | New |
| Glazer Capital, LLC | 1,329,906 | $13.5M | 0.45% | +1,329,906 | New |
| Alberta Investment Management Corp | 1,450,000 | $14.7M | 0.11% | +1,450,000 | New |
| Highbridge Capital Management LLC | 1,470,000 | $14.9M | 0.75% | +1,470,000 | New |