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MANGROVE PARTNERS IM, LLC — 13F Holdings & Portfolio

CIK 1535392 · latest 13F-HR filed 2026-08-14

Backtest portfolio

MANGROVE PARTNERS IM, LLC manages $1.52B in 13F-reported U.S. long-equity assets across 426 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are INDV (7.22%), VISN (6.01%), ATMU (4.06%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 199 new positions, exited 200, added to 93, and trimmed 58.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
2 SOUND VIEW DRIVE
GREENWICH, CT 06830
Phone
(212) 897-9535
Filing Manager
MANGROVE PARTNERS IM, LLC
Greenwich, CT
Signatory
Ward T. Dietrich
Chief Operating Officer
Loading holdings…
AUM

$1.52B

Long-equity book

Holdings

426

Distinct positions

Period

2026-06-30

Filed 2026-08-14

Q/Q Activity

+199 / −200 / ↑93 / ↓58

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • VISTANCE NETWORKS INC$91.3M +41992.2%
  • BEL FUSE INC$30.3M +13161.8%
  • INDIVIOR PHARMACEUTICALS INC$26.2M +31.4%
  • FLYWIRE CORPORATION$17.3M +49.4%
  • OPEN TEXT CORP$14.2M +64.1%
Show all 93 →

Top Trims

  • ENOVA INTL INC-$38.6M -99.3%
  • GRAYSCALE ETHEREUM STAKING-$37.0M -52.4%
  • ATMUS FILTRATION TECHNOLOGIE-$12.9M -17.3%
  • FIDELITY NATL INFORMATION SV-$5.3M -17.1%
  • AXIOM INTELLIGENCE AC CORP 1-$4.4M -47.9%
Show all 58 →

New Positions

  • ACADIA HEALTHCARE COMPANY IN$41.2M
  • APTIV PLC$37.7M
  • ISHARES TR$27.7M
  • APARTMENT INVT & MGMT CO$13.2M
  • DISCIPLINED GROWTH$7.5M
Show all 199 →

Exited Positions

  • TRIPADVISOR INC$10.3M
  • BITWISE SOLANA STAKING ETF$8.5M
  • VOYAGER ACQUISITION CORP$5.4M
  • FACT II ACQUISITION CORP$4.6M
  • A PARADISE ACQUISITION CORP$4.6M
Show all 200 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 INDIVIOR PHARMACEUTICALS INC INDV 45579U109 $109.8M 7.22% 2,676,730 SH
2 VISTANCE NETWORKS INC VISN 20337X109 $91.5M 6.01% 7,158,439 SH
3 ATMUS FILTRATION TECHNOLOGIE ATMU 04956D107 $61.8M 4.06% 1,211,236 SH
4 FLYWIRE CORPORATION FLYW 302492103 $52.4M 3.44% 2,984,076 SH
5 MILLICOM INTL CELLULAR S A TIGO L6388F110 $50.5M 3.32% 556,485 SH
6 REX AMERICAN RES CORP REX 761624105 $45.8M 3.01% 1,015,234 SH
7 KEURIG DR PEPPER INC KDP 49271V100 $44.7M 2.93% 1,364,682 SH
8 MILLROSE PPTYS INC MRP 601137102 $41.5M 2.73% 1,380,992 SH
9 ACADIA HEALTHCARE COMPANY IN ACHC 00404A109 $41.2M 2.71% 1,396,059 SH
10 PG&E CORP PCG 69331C108 $40.6M 2.67% 2,413,615 SH
11 UNION PAC CORP UNP 907818108 $40.3M 2.65% 148,098 SH
12 ONEOK INC NEW OKE 682680103 $40.1M 2.64% 461,743 SH
13 COMPASS DIVERSIFIED CODI 20451Q104 $39.3M 2.58% 3,684,800 SH
14 APTIV PLC APTV G3265R107 $37.7M 2.47% 613,392 SH
15 GENUINE PARTS CO GPC 372460105 $37.4M 2.46% 316,771 SH
16 BIO RAD LABS INC BIO 090572207 $37.3M 2.45% 127,191 SH
17 OPEN TEXT CORP OTEX 683715106 $36.3M 2.38% 1,637,946 SH
18 GRAYSCALE ETHEREUM STAKING ETH 38964R203 $33.6M 2.20% 2,232,656 SH
19 BEL FUSE INC BELFA 077347201 $30.5M 2.00% 104,706 SH
20 BILL HOLDINGS INC BILL 090043100 $30.3M 1.99% 838,994 SH
21 NEWS CORP NEW NWSA 65249B109 $29.6M 1.94% 1,191,858 SH
22 ISHARES TR IWM 464287655 $27.7M 1.82% 92,192 SH
23 FIDELITY NATL INFORMATION SV FIS 31620M106 $25.6M 1.68% 657,673 SH
24 APARTMENT INVT & MGMT CO AIV 03748R747 $13.2M 0.87% 4,459,396 SH
25 DISCIPLINED GROWTH DGAC.U G2775W127 $7.5M 0.49% 749,995 SH
26 HARVARD AVE ACQUISITION CORP HAVA G4330A103 $7.5M 0.49% 740,600 SH
27 QUANTUM LEAP ACQUISITION COR QLEP G73167101 $7.4M 0.49% 750,000 SH
28 GREIF INC GEF 397624107 $7.3M 0.48% 97,567 SH
29 CLEARTHINK 1 ACQUISITION COR CTAAU G2294A127 $6.1M 0.40% 605,000 SH
30 ARC GROUP ACQUISITION I CORP ARCLU G24498100 $5.9M 0.39% 575,000 SH
31 K2 CAP ACQUISITION CORP KTWO G5226B105 $5.9M 0.39% 590,000 SH
32 BREEZE ACQUISITION CORP II BREZ G13227106 $5.7M 0.37% 575,000 SH
33 CIA ENERGETICA DE MINAS GERA CIG 204409601 $5.5M 0.36% 2,625,000 SH
34 VERNAL CAP ACQUISITION CORP VECA.U G93Y7F122 $5.2M 0.34% 490,000 SH
35 EMMIS ACQUISITION CORP. EMIS G3037D105 $5.1M 0.33% 500,000 SH
36 STARLINK AI ACQUISITION CORP OTAI.U G8443M128 $5.1M 0.33% 499,990 SH
37 LIGHTWAVE ACQUISITION CORP LWAC G5490M100 $5.0M 0.33% 486,900 SH
38 AXIOM INTELLIGENCE AC CORP 1 AXIN G0750N104 $4.7M 0.31% 459,340 SH
39 K&F GROWTH ACQUISITION CORP KFII G52258111 $4.7M 0.31% 450,000 SH
40 COPLEY ACQUISITION CORP COPL G24243100 $4.7M 0.31% 450,000 SH
41 COLLECTIVE ACQUISITION CORP CCAQ G2867S109 $4.7M 0.31% 449,995 SH
42 SIZZLE ACQUISITION CORP. II SZZL G8193F109 $4.7M 0.31% 450,000 SH
43 THAYER VENTURES ACQ CORP II TVAI G87890102 $4.6M 0.31% 450,000 SH
44 OYSTER ENTERPRISES II ACQUIS OYSE G6861F104 $4.6M 0.30% 450,000 SH
45 SILVER PEGASUS ACQUISITION C SPEG G8192J102 $4.6M 0.30% 450,000 SH
46 INDIGO ACQUISITION CORP INAC G4791J106 $4.6M 0.30% 450,000 SH
47 AI INFRASTRUCTURE ACQUISI AIIA G01336109 $4.6M 0.30% 450,000 SH
48 PIONEER ACQUISITION I CORP PACH G7117W107 $4.6M 0.30% 450,000 SH
49 RF ACQUISITION CORP III RFAM G7537X107 $4.6M 0.30% 465,000 SH
50 VENDOME ACQUISITION CORP I VNME G9580A109 $4.6M 0.30% 450,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $1.52B 426 0001172661-26-003546
2026-03-31 2026-05-15 $1.24B 427 0001172661-26-002101
2025-12-31 2026-02-17 $1.23B 371 0001172661-26-000828
2025-09-30 2025-11-14 $1.35B 178 0001172661-25-004806