MANGROVE PARTNERS IM, LLC
Long book
$1.24B
Q1 2026
Positions
427
Top-10 weight
42%
concentration
Last quarter
+11.3%
SPY +14.8%
Turnover
74%
of book per quarter
Strategy in plain words
auto-generated from filingsMANGROVE PARTNERS IM, LLC is a quantitative fund whose holdings reflect models, not opinions, running a $1.24B US long book across 427 positions.
The portfolio is moderately concentrated (top 10 ≈ 42% of the book). Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: INDIVIOR PHARMACEUTICALS INC, ATMUS FILTRATION TECHNOLOGIE, GRAYSCALE ETHEREUM STAKING M, REX AMERICAN RESOURCES CORP, P G & E CORP.
Over the last 9 quarters its long book ran on average 1.6pp per quarter ahead of the S&P 500, beating the index in 4 of 9 quarters. Signal value of individual moves is limited — treat changes as weak evidence.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-1.9%
Q2 2024
+15.0%
Q3 2024
-3.2%
Q4 2024
-4.9%
Q1 2025
+9.0%
Q2 2025
+24.3%
Q3 2025
+6.5%
Q4 2025
-0.9%
Q1 2026
+11.3%
Sector allocation
Financials 24%
Healthcare 13%
Industrials 13%
Other 11%
Utilities 9%
Technology 8%
Services media 8%
Communications 4%
Long book by quarter
What does MANGROVE PARTNERS own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| INDV INDIVIOR PHARMACEUTICALS INC | Healthcare | 2.7M | $83.6M | 6.8% | New |
| ATMU ATMUS FILTRATION TECHNOLOGIE | Industrials | 1.3M | $74.7M | 6.0% | Held |
| REX REX AMERICAN RESOURCES CORP | Other | 1.0M | $46.3M | 3.7% | Held |
| PCG P G & E CORP | Utilities | 2.4M | $42.4M | 3.4% | Held |
| OKE ONEOK INC | Utilities | 461.7K | $41.7M | 3.4% | New |
| TIGO MILLICOM INTL CELLULAR S.A. | Communications | 556.5K | $41.7M | 3.4% | +7091.6% |
| ENVA ENOVA INTERNATIONAL INC | Financials | 286.5K | $38.9M | 3.1% | Held |
| KDP KEURIG DR PEPPER INC | Consumer staples | 1.4M | $35.9M | 2.9% | New |
| UNP UNION PACIFIC CORP | Industrials | 148.1K | $35.9M | 2.9% | New |
| BIO BIO-RAD LABORATORIES-A | Healthcare | 126.9K | $35.4M | 2.9% | Held |
| FLYW FLYWIRE CORP-VOTING | Services media | 3.0M | $35.1M | 2.8% | +1.0% |
| GPC GENUINE PARTS CO | Consumer discretionary | 316.8K | $33.5M | 2.7% | New |
| BILL BILL HOLDINGS INC | Technology | 839.0K | $32.1M | 2.6% | +28.0% |
| FIS FIDELITY NATIONAL INFO SERV | Services media | 657.7K | $30.9M | 2.5% | +29.6% |
| NWSA NEWS CORP - CLASS A | Other | 1.2M | $29.7M | 2.4% | Held |
| CODI COMPASS DIVERSIFIED HOLDINGS | Other | 3.7M | $29.0M | 2.3% | Held |
| OTEX OPEN TEXT CORP | Technology | 993.2K | $22.1M | 1.8% | Held |
| TRIP TRIPADVISOR INC | Technology | 968.7K | $10.3M | 0.8% | +4753.5% |
| AXIN AXIOM INTELLIGENCE-CL A | Financials | 900.0K | $9.1M | 0.7% | Held |
| HAVA HARVARD AVE ACQUISITION-CL A | Financials | 740.6K | $7.4M | 0.6% | New |
| KTWO K2 CAPITAL ACQUISITION-CL A | Financials | 590.0K | $5.8M | 0.5% | New |
| EMIS EMMIS ACQUISITION CORP-CL A | Financials | 500.0K | $5.0M | 0.4% | Held |
| LWAC LIGHTWAVE ACQUISITION CORP-A | Financials | 486.9K | $5.0M | 0.4% | Held |
| KFII K&F GROWTH ACQUISITION COR-A | Financials | 450.0K | $4.7M | 0.4% | Held |
| CCAQ COLLECTIVE ACQUISITION CORP | Financials | 450.0K | $4.6M | 0.4% | 0.0% |
| COPL COPLEY ACQUISITION CORP-A | Financials | 450.0K | $4.6M | 0.4% | Held |
| SZZL SIZZLE ACQUISITION CORP-CL A | Financials | 450.0K | $4.6M | 0.4% | Held |
| FACT FACT II ACQUISITION CORP | Industrials | 439.0K | $4.6M | 0.4% | -2.5% |
| TVAI THAYER VENTURES ACQUIS CL A | Financials | 450.0K | $4.6M | 0.4% | Held |
| INAC INDIGO ACQUISITION CORP | Financials | 450.0K | $4.6M | 0.4% | Held |
| SPEG SILVER PEGASUS ACQUISITION-A | Financials | 450.0K | $4.6M | 0.4% | Held |
| OYSE OYSTER ENTERPRISES II ACQ-A | Financials | 450.0K | $4.6M | 0.4% | Held |
| ENHA ENHANCED GROUP INC | Services media | 450.0K | $4.6M | 0.4% | Held |
| PACH PIONEER ACQUISITION I-CL A | Financials | 450.0K | $4.6M | 0.4% | Held |
| RFAM RF ACQUISITION CORP III | Financials | 465.0K | $4.6M | 0.4% | New |
| VNME VENDOME ACQUISITION CORP-A | Financials | 450.0K | $4.5M | 0.4% | Held |
| AIIA AI INFRASTRUCTURE AC-A | Financials | 450.0K | $4.5M | 0.4% | Held |
| LATA GALATA ACQU CORP II - CL A | Financials | 450.0K | $4.5M | 0.4% | +103.2% |
| SCII SC II ACQUISITION CORP-CL A | Financials | 450.0K | $4.5M | 0.4% | New |
| SSAC SPACSPHERE ACQUISITION-CL A | Financials | 450.0K | $4.5M | 0.4% | New |
| IGAC INVEST GREEN ACQUISITIO-CL A | Financials | 450.0K | $4.5M | 0.4% | New |
| SORN SOREN ACQUISITION CORP-CL A | Financials | 450.0K | $4.4M | 0.4% | New |
| IRHO IRON HORSE ACQUISITIONS CORP | Services media | 450.0K | $4.4M | 0.4% | New |
| XSLL XSOLLA SPAC 1-CL A | Financials | 450.0K | $4.4M | 0.4% | New |
| CMII COLUMBUS CIRCLE CAPITAL CO-A | Financials | 450.0K | $4.4M | 0.4% | New |
| QSEA QUARTZSEA ACQUISITION CORP | Financials | 408.2K | $4.2M | 0.3% | Held |
| FGMC FG MERGER II CORP | Financials | 392.0K | $4.0M | 0.3% | Held |
| AACB ARTIUS II ACQUISITION INC-A | Financials | 356.2K | $3.7M | 0.3% | -20.9% |
| ZIM ZIM INTEGRATED SHIPPING SERV | Industrials | 135.0K | $3.6M | 0.3% | +405.4% |
| AES AES CORP | Utilities | 248.6K | $3.5M | 0.3% | New |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 427 | $1.24B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 371 | $1.23B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 178 | $1.35B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 154 | $931.3M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 156 | $924.9M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 154 | $905.0M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 161 | $1.16B | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 142 | $1.30B | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 163 | $1.44B | canonical | SEC ↗ |
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