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GRITSTONE ASSET MANAGEMENT LLC — 13F Holdings & Portfolio

CIK 1964236 · latest 13F-HR filed 2026-05-05

Backtest portfolio

GRITSTONE ASSET MANAGEMENT LLC manages $93.6M in 13F-reported U.S. long-equity assets across 154 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are OACC (4.46%), ALDF (4.45%), BEAG (3.88%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 46 new positions, exited 40, added to 9, and trimmed 48.

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.

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AUM

$93.6M

Long-equity book

Holdings

154

Distinct positions

Period

2026-03-31

Filed 2026-05-05

Q/Q Activity

+46 / −40 / ↑9 / ↓48

vs 2025-12-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • VINE HILL CAP INVTS CORP II$874.7K +698.3%
  • LEGATO MERGER CORP III$20.8K +21.9%
  • K&F GROWTH ACQUISITION CORP$7.4K +38.5%
  • OAKTREE ACQUISITION CORP III$3.2K +5.6%
  • SIM ACQUISITION CORP. I$2.6K +16.1%
Show all 9 →

Top Trims

  • CHURCHILL CAPITAL CORP IX-$68.5K -49.1%
  • AGRICULTURE & NAT SOL ACQ CO-$58.2K -37.5%
  • BOLD EAGLE ACQUISITION CORP-$43.3K -34.4%
  • ALDEL FINL II INC-$39.4K -36.4%
  • CENTURION ACQUISITION CORP-$28.6K -61.4%
Show all 48 →

New Positions

  • INFINITE EAGLE ACQUISITION C$3.0M
  • NEW AMER ACQUISITION I CORP$2.0M
  • LAFAYETTE DIGITAL ACQUISITIO$1.7M
  • LEAPFROG ACQUISITION CORP$1.5M
  • COLOMBIER ACQUISITION CORP I$1.3M
Show all 46 →

Exited Positions

  • ARES CAPITAL CORP$9.0M
  • EQV VENTURES ACQUISITION COR$4.2M
  • VINE HILL CAP INVT CORP.$2.1M
  • INFLECTION POINT ACQUISITION$2.1M
  • NEW AMER ACQUISITION I CORP$2.0M
Show all 40 →
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 OAKTREE ACQUISITION CORP III OACC G6717R104 $4.2M 4.46% 394,908 SH
2 ALDEL FINL II INC ALDF G01558108 $4.2M 4.45% 394,214 SH
3 BOLD EAGLE ACQUISITION CORP BEAG G2003N105 $3.6M 3.88% 344,488 SH
4 LIONHEART HOLDINGS CUB G5501C109 $3.1M 3.34% 291,012 SH
5 CENTURION ACQUISITION CORP ALF G20315100 $3.1M 3.34% 290,988 SH
6 INFINITE EAGLE ACQUISITION C IEAGU G4802J129 $3.0M 3.25% 300,000 SH
7 RITHM ACQUISITION CORP RAC G75751100 $2.1M 2.19% 197,598 SH
8 HENNESSY CAP INVT CORP VII HVII G4405D107 $2.0M 2.19% 197,899 SH
9 ARTIUS II ACQUISITION INC AACB G0509J115 $2.0M 2.18% 197,656 SH
10 NEW AMER ACQUISITION I CORP NWAX 023634108 $2.0M 2.08% 195,000 SH
11 GRAF GLOBAL CORP GRAF G4036C106 $1.9M 2.00% 174,665 SH
12 LAFAYETTE DIGITAL ACQUISITIO ZKPU G5345D123 $1.7M 1.86% 175,000 SH
13 LAUNCH TWO ACQUISITION CORP. LPBB G5S87A105 $1.6M 1.66% 146,820 SH
14 K&F GROWTH ACQUISITION CORP KFII G52258111 $1.6M 1.66% 148,743 SH
15 TALON CAP CORP TLNC G86652107 $1.5M 1.63% 150,000 SH
16 LEAPFROG ACQUISITION CORP LFAC G5414D103 $1.5M 1.59% 150,000 SH
17 STELLAR V CAP CORP SVCC G8475V103 $1.4M 1.49% 133,770 SH
18 NEWHOLD INVT CORP III NHIC G6486E102 $1.3M 1.37% 123,541 SH
19 HIGHVIEW MERGER CORP HVMC G4569C101 $1.3M 1.36% 127,021 SH
20 COLOMBIER ACQUISITION CORP I CLBR.U G2284A129 $1.3M 1.36% 125,000 SH
21 SOLARIUS CAPITAL ACQU CORP SOCA G82617104 $1.3M 1.36% 125,000 SH
22 OXLEY BRIDGE ACQ LTD OBA G6858G107 $1.3M 1.34% 124,293 SH
23 OTG ACQUISITION CORP. I OTGA G6791A100 $1.3M 1.34% 125,000 SH
24 SILICON VY ACQUISITION CORP SVAQU G81306105 $1.3M 1.34% 125,000 SH
25 LAUNCHPAD CADENZA ACQU CORP LPCVU G6001S123 $1.2M 1.33% 125,000 SH
26 ALUSSA ENERGY ACQUISIT CORP ALUB G0233J100 $1.2M 1.33% 125,000 SH
27 BLUEROCK ACQUISITION CORP BLRK G1352R105 $1.2M 1.32% 125,000 SH
28 KPET ULTRA PACELINE CORP KPET.U G53157122 $1.2M 1.30% 121,280 SH
29 ALDABRA 4 LQDTY OPP VEH INC ALOVU G01900201 $1.2M 1.26% 118,214 SH
30 GALATA ACQUISITION CORP II LATA G3R25N108 $1.1M 1.13% 106,256 SH
31 FACT II ACQUISITION CORP FACT G32901103 $1.1M 1.12% 100,000 SH
32 ARCHIMEDES TECH SPAC PARTNER ATII G04537109 $1.0M 1.10% 99,081 SH
33 RICE ACQUISITION CORP 3 KRSP G7553X106 $1.0M 1.10% 100,000 SH
34 GESHER ACQUISITION CORP. II GSHR G3852D107 $1.0M 1.09% 98,832 SH
35 SIZZLE ACQUISITION CORP. II SZZL G8193F109 $1.0M 1.09% 98,992 SH
36 TITAN ACQUISITION CORP TACH G8901A103 $1.0M 1.09% 98,764 SH
37 CARTESIAN GROWTH CORP III CGCT G19307100 $1.0M 1.08% 98,853 SH
38 BERTO ACQUISITION CORP TACO G1051H101 $1.0M 1.08% 98,853 SH
39 REPUBLIC DIGITAL ACQUISITION RDAG G7515A103 $1.0M 1.08% 98,850 SH
40 JENA ACQUISITION CORP II JENA G5093B105 $1.0M 1.08% 98,857 SH
41 WEN ACQUISITION CORP WENN G9R39C103 $1.0M 1.07% 98,857 SH
42 KENSINGTON CAP ACQUIST CORP KCAC.U G5235S123 $1.0M 1.07% 100,000 SH
43 KRAKACQUISITION CORPORATION KRAQU G5315G122 $1.0M 1.07% 100,000 SH
44 HENNESSY CAP INVTS CORP VIII HCICU G44055112 $1.0M 1.07% 100,000 SH
45 VINE HILL CAP INVTS CORP II VHCPU G9709D125 $1.0M 1.07% 100,000 SH
46 EQV VENTURES AC CORP. II EVAC G3106Q102 $997.5K 1.07% 98,865 SH
47 CAMBRIDGE ACQUISITION CORP CAQUU G1871M124 $996.0K 1.06% 100,000 SH
48 DAEDALUS SPL ACQUISITION COR DSAC G2616C108 $991.0K 1.06% 100,000 SH
49 ACTIVATE ENERGY ACQUISIT COR AEAQ G0081J103 $989.0K 1.06% 100,000 SH
50 LIVE OAK ACQUISITION CORP V LOKV G5509P102 $901.0K 0.96% 86,636 SH
Filing History
Period Filed AUM Holdings Accession
2026-03-31 2026-05-05 $93.6M 154 0001705819-26-000034
2025-12-31 2026-01-23 $104.8M 148 0001705819-26-000012