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MBVI · M3-Brigade Acquisition VI Corp.

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$10.21 At close · Aug 31
Rebalance outlook locked
Going-concern doubt — flagged Aug 14, 2026

Substantial doubt about the company's ability to continue as a going concern.

“In connection with the Company's assessment of going concern considerations in accordance with ASC 205-40, "Presentation of Financial Statements - Going Concern," management has determined that the Company's projected liquidity condition raises substantial doubt about the Company's ability to continue as a going concern. Management intends to address this liquidity need through Working Capital Loans from the Sponsor or its affiliates and by completing a Business Combination; however, there can be no assurance that these plans will be successfully implemented. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.”
View the 10-Q filed Aug 14, 2026
Market Cap
$440.31M
Shares
43.12M

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.

Holders: 79
Total Value: $306,916,138
Total Shares: 41,415,611
Showing 1–100 of 127 holdings by value · page 1 of 2

Institutional Ownership Trend

4 quarters

Holder Concentration

Across 79 13F filers · Δ vs Mar 31, 2026
Top Holder
5.0%
Sep 2025 → Jun 2026 · range 4.6% – 5.0%
+0.5 pts
Top 5
22.1%
Sep 2025 → Jun 2026 · range 20.3% – 22.1%
+1.8 pts
Top 10
40.3%
Sep 2025 → Jun 2026 · range 37.4% – 40.3%
+2.8 pts
HHI
285
Sep 2025 → Jun 2026 · range 261 – 285
Broadly held+25

Quarterly Activity

vs Mar 31, 2026
New
4
Increased
18
Decreased
18
Sold Out
5
Unchanged
39
Holder count: -1
Institutional value: -4.9%
Shares held: +0.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open
GLAZER CAPITAL, LLC +276,329 1,736,872
TORONTO DOMINION BANK +202,188 626,408
HIGHBRIDGE CAPITAL MANAGEMENT LLC +181,881 2,185,141
Schonfeld Strategic Advisors LLC +125,563 276,925
CSS LLC/IL +120,000 327,248

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open
METEORA CAPITAL, LLC −266,420 987,332
Context Capital Management, LLC −263,766 791,300
Wealthspring Capital LLC −216,885 517,108
HighTower Advisors, LLC −194,050 888,850
Shaolin Capital Management LLC −119,044 825,939

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open
MIZUHO SECURITIES USA LLC 230,925 $2,339,270
Arax Advisory Partners 148,000 $1,124,430
FNY Investment Advisers, LLC 500 $5,065
Rangeley Capital, LLC 2,927 $0

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
SYQUANT CAPITAL SAS 200,000 $2,030,000
StoneX Group Inc. 42,600 $428,130
DELTEC ASSET MANAGEMENT LLC 25,000 $251,250
Calamos Advisors LLC 24,606 $249,750
ROYAL BANK OF CANADA 1,000 $0
Filter: New 4 Increased 18 Reduced 18 Sold out 5 Unchanged 39
Showing 100 of 127
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
HIGHBRIDGE CAPITAL MANAGEMENT LLC $15,466,443 5.04% 1,526,796
Alberta Investment Management Corp $14,688,500 4.79% 1,450,000
GLAZER CAPITAL, LLC $13,675,500 4.46% 1,350,000
PEAK6 LLC $12,662,500 4.13% 1,250,000
PICTON MAHONEY ASSET MANAGEMENT $11,315,189 3.69% 1,116,998
AQR Arbitrage LLC $11,231,900 3.66% 1,108,776
Linden Advisors LP $11,143,000 3.63% 1,100,000
TENOR CAPITAL MANAGEMENT Co., L.P. $11,143,000 3.63% 1,100,000
Polar Asset Management Partners Inc. $11,143,000 3.63% 1,100,000
MMCAP International Inc. SPC $11,143,000 3.63% 1,100,000
Magnetar Financial LLC $11,142,949 3.63% 1,099,995
ADAGE CAPITAL PARTNERS GP, L.L.C. $10,130,000 3.30% 1,000,000
TWO SIGMA INVESTMENTS, LP $10,072,431 3.28% 994,317
METEORA CAPITAL, LLC $10,001,673 3.26% 987,332
HighTower Advisors, LLC $9,004,050 2.93% 888,850
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $8,610,479 2.81% 849,998
Verition Fund Management LLC $8,533,663 2.78% 842,415
Context Capital Management, LLC $8,015,869 2.61% 791,300
Radcliffe Capital Management, L.P. $6,775,014 2.21% 668,807
WOLVERINE ASSET MANAGEMENT LLC $6,397,631 2.08% 631,553
OMERS ADMINISTRATION Corp $6,078,000 1.98% 600,000
Hudson Bay Capital Management LP $6,078,000 1.98% 600,000
Wealthspring Capital LLC $5,238,304 1.71% 517,108
Mint Tower Capital Management B.V. $5,065,000 1.65% 500,000
Shaolin Capital Management LLC $4,299,283 1.40% 424,411
BNP PARIBAS ARBITRAGE, SA $4,066,941 1.33% 401,475
First Trust Capital Management L.P. $4,048,971 1.32% 399,701
RIVERNORTH CAPITAL MANAGEMENT, LLC $4,043,095 1.32% 399,121
Periscope Capital Inc. $3,798,750 1.24% 375,000
SONA ASSET MANAGEMENT (US) LLC $3,677,888 1.20% 363,069
ARISTEIA CAPITAL, L.L.C. $3,545,500 1.16% 350,000
BlueCrest Capital Management Ltd $3,413,810 1.11% 337,000
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $3,039,000 0.99% 300,000
GABELLI & Co INVESTMENT ADVISERS, INC. $2,729,022 0.89% 269,400
Schonfeld Strategic Advisors LLC $2,577,325 0.84% 254,425
O'Connor Alternative Investments LLC $2,532,500 0.83% 250,000
Davidson Kempner Capital Management LP $2,532,500 0.83% 250,000
BERKLEY W R CORP $2,453,931 0.80% 242,244
MIZUHO SECURITIES USA LLC $2,339,270 0.76% 230,925
GABELLI FUNDS LLC $2,082,728 0.68% 205,600
D. E. Shaw & Co., Inc. $2,076,579 0.68% 204,993
MOORE CAPITAL MANAGEMENT, LP $2,026,000 0.66% 200,000
MILLENNIUM MANAGEMENT LLC $1,853,283 0.60% 182,950
Lineage Point Capital LP $1,732,230 0.56% 171,000
WHITEBOX ADVISORS LLC $1,519,500 0.50% 150,000
CSS LLC/IL $1,215,600 0.40% 120,000
Bulldog Investors, LLP $1,167,350 0.38% 115,237
Arax Advisory Partners $1,124,430 0.37% 111,000
Ghisallo Capital Management LLC $1,013,000 0.33% 100,000
TIG Advisors, LLC $1,013,000 0.33% 100,000
Parallax Volatility Advisers, L.P. $909,481 0.30% 89,781
Kryger Capital LLC $783,991 0.26% 77,393
Clear Street Group Inc. $607,800 0.20% 60,000
Governors Lane LP $506,500 0.17% 50,000
PenderFund Capital Management Ltd. $491,953 0.16% 48,564
BOOTHBAY FUND MANAGEMENT, LLC $468,016 0.15% 46,201
SUSQUEHANNA INTERNATIONAL GROUP, LLP $451,108 0.15% 44,532
TORONTO DOMINION BANK $423,434 0.14% 41,800
Virtu Financial LLC $353,040 0.12% 34,851
ABC ARBITRAGE SA $253,250 0.08% 25,000
Centiva Capital, LP $253,239 0.08% 24,999
Kepos Capital LP $239,047 0.08% 23,598
Evercore Wealth Management, LLC $162,069 0.05% 15,999
STATE OF WISCONSIN INVESTMENT BOARD $101,300 0.03% 10,000
Timelo Investment Management Inc. $101,300 0.03% 10,000
JPMORGAN CHASE & CO $99,699 0.03% 9,842
UBS Group AG $29,002 0.01% 2,863
FNY Investment Advisers, LLC $5,065 0.00% 500
MORGAN STANLEY $263 0.00% 26
LMR Partners LLP MBVIU — — 250,000
GABELLI FUNDS LLC MBVIW — — 76,866
WOLVERINE ASSET MANAGEMENT LLC MBVIW — — 72,666
Governors Lane LP MBVIW — — 16,648
PEAK6 LLC MBVIW — — 448,803
SONA ASSET MANAGEMENT (US) LLC MBVIU — — 25,000
HIGHBRIDGE CAPITAL MANAGEMENT LLC MBVIW — — 658,345
ARISTEIA CAPITAL, L.L.C. MBVIW — — 116,666
Bulldog Investors, LLP MBVIW — — 38,411
Polar Asset Management Partners Inc. MBVIW — — 372,058
RIVERNORTH CAPITAL MANAGEMENT, LLC MBVIW — — 133,169
TENOR CAPITAL MANAGEMENT Co., L.P. MBVIW — — 366,666
Arax Advisory Partners MBVIW — — 37,000
Shaolin Capital Management LLC MBVIW — — 401,528
Kryger Capital LLC MBVIW — — 25,888
HGC Investment Management Inc. MBVIU — — 625,000
MILLENNIUM MANAGEMENT LLC MBVIW — — 311,916
Clear Street Group Inc. MBVIW — — 89,462
BNP PARIBAS ARBITRAGE, SA MBVIW — — 119,389
Linden Advisors LP MBVIW — — 366,666
PICTON MAHONEY ASSET MANAGEMENT MBVIW — — 366,666
TORONTO DOMINION BANK MBVIU — — 584,608
Hudson Bay Capital Management LP MBVIW — — 183,333
CSS LLC/IL MBVIW — — 207,248
K2 PRINCIPAL FUND, L.P. MBVIW — — 33,333
Lineage Point Capital LP MBVIW — — 100,000
WHITEBOX ADVISORS LLC MBVIW — — 50,000
ADAGE CAPITAL PARTNERS GP, L.L.C. MBVIW — — 147,766
TIG Advisors, LLC MBVIW — — 33,330
CITIGROUP INC MBVIU — — 90,000
GABELLI & Co INVESTMENT ADVISERS, INC. MBVIW — — 89,800
Key facts CIK 2073928 CUSIP G63221108 13F (30d) 73 filings 73 filers Visit website

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