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GRITSTONE ASSET MANAGEMENT LLC — 13F Holdings & Portfolio

CIK 1964236 · latest 13F-HR filed 2026-08-06

Backtest portfolio

GRITSTONE ASSET MANAGEMENT LLC manages $104.0M in 13F-reported U.S. long-equity assets across 174 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are ARCC (7.97%), OACC (4.06%), ALDF (4.05%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 54 new positions, exited 34, added to 50, and trimmed 14.

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
4800 HAMPDEN LANE
SUITE 200
BETHESDA, MD 20814
Phone
(240) 470-7001
Filing Manager
GRITSTONE ASSET MANAGEMENT LLC
Bethesda, MD
Signatory
Nicholas Skibo
Managing Partner
Loading holdings…
AUM

$104.0M

Long-equity book

Holdings

174

Distinct positions

Period

2026-06-30

Filed 2026-08-06

Q/Q Activity

+54 / −34 / ↑50 / ↓14

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • NEWHOLD INVT CORP III$104.4K +412.2%
  • PRESIDIO PRODTN CO$76.5K +70.4%
  • NEWHOLD INVT CORP III$64.2K +5.0%
  • TRANSLATIONAL DEV ACQUISITIO$54.6K +1087.5%
  • AMERICAN EXCEPTIONALISM ACQU$49.5K +9.1%
Show all 50 →

Top Trims

  • BOLD EAGLE ACQUISITION CORP-$1.6M -42.9%
  • FACT II ACQUISITION CORP-$784.2K -74.7%
  • ARTIUS II ACQUISITION INC-$18.2K -30.4%
  • ALDEL FINL II INC-$9.9K -14.4%
  • K&F GROWTH ACQUISITION CORP-$8.2K -30.4%
Show all 14 →

New Positions

  • ARES CAPITAL CORP$8.3M
  • ARES ACQUISITION CORP III$2.5M
  • RRE VENTURES ACQUISITION COR$2.0M
  • INFINITE EAGLE ACQUISITION C$1.8M
  • LAFAYETTE DIGITAL ACQUISITIO$1.7M
Show all 54 →

Exited Positions

  • LIONHEART HOLDINGS$3.1M
  • CENTURION ACQUISITION CORP$3.1M
  • INFINITE EAGLE ACQUISITION C$3.0M
  • GRAF GLOBAL CORP$1.9M
  • LAFAYETTE DIGITAL ACQUISITIO$1.7M
Show all 34 →
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 ARES CAPITAL CORP ARCC 04010L103 $8.3M 7.97% 447,088 SH
2 OAKTREE ACQUISITION CORP III OACC G6717R104 $4.2M 4.06% 394,908 SH
3 ALDEL FINL II INC ALDF G01558108 $4.2M 4.05% 394,214 SH
4 ARES ACQUISITION CORP III AAC.U G3303U112 $2.5M 2.42% 250,000 SH
5 BOLD EAGLE ACQUISITION CORP BEAG G2003N105 $2.1M 2.00% 194,488 SH
6 ARTIUS II ACQUISITION INC AACB G0509J115 $2.1M 1.99% 197,656 SH
7 HENNESSY CAP INVT CORP VII HVII G4405D107 $2.1M 1.99% 197,899 SH
8 RITHM ACQUISITION CORP RAC G75751100 $2.1M 1.99% 197,598 SH
9 NEW AMER ACQUISITION I CORP NWAX 023634108 $2.0M 1.90% 195,000 SH
10 RRE VENTURES ACQUISITION COR RREV G770AL103 $2.0M 1.90% 200,000 SH
11 INFINITE EAGLE ACQUISITION C IEAG G4802J103 $1.8M 1.70% 175,000 SH
12 LAFAYETTE DIGITAL ACQUISITIO ZKP G5345D107 $1.7M 1.68% 175,000 SH
13 LAUNCH TWO ACQUISITION CORP. LPBB G5S87A105 $1.6M 1.51% 146,820 SH
14 K&F GROWTH ACQUISITION CORP KFII G52258111 $1.6M 1.51% 148,743 SH
15 TALON CAP CORP TLNC G86652107 $1.5M 1.49% 150,000 SH
16 LEAPFROG ACQUISITION CORP LFAC G5414D103 $1.5M 1.44% 150,000 SH
17 STELLAR V CAP CORP SVCC G8475V103 $1.4M 1.36% 133,770 SH
18 NEWHOLD INVT CORP III NHIC G6486E102 $1.3M 1.29% 123,541 SH
19 HIGHVIEW MERGER CORP HVMC G4569C101 $1.3M 1.24% 127,021 SH
20 SOLARIUS CAPITAL ACQU CORP SOCA G82617104 $1.3M 1.23% 125,000 SH
21 COLOMBIER ACQUISITION CORP I CLBR G2284A103 $1.3M 1.23% 125,000 SH
22 OXLEY BRIDGE ACQ LTD OBA G6858G107 $1.3M 1.22% 124,293 SH
23 GORES HOLDINGS XI INC GHXIU G40008123 $1.3M 1.22% 125,000 SH
24 OTG ACQUISITION CORP. I OTGA G6791A100 $1.3M 1.22% 125,000 SH
25 SILICON VY ACQUISITION CORP SVAQ G81306121 $1.3M 1.21% 125,000 SH
26 ALUSSA ENERGY ACQUISIT CORP ALUB G0233J100 $1.3M 1.21% 125,000 SH
27 AMPERCAP ACQUISITION CO APMCU G0344N123 $1.3M 1.21% 124,988 SH
28 LAUNCHPAD CADENZA ACQU CORP LPCV G6001S107 $1.2M 1.20% 125,000 SH
29 BLUEROCK ACQUISITION CORP BLRK G1352R105 $1.2M 1.20% 125,000 SH
30 KPET ULTRA PACELINE CORP KPET.U G53157122 $1.2M 1.18% 121,280 SH
31 ALDABRA 4 LQDTY OPP VEH INC ALOV G01900102 $1.2M 1.13% 118,214 SH
32 GALATA ACQUISITION CORP II LATA G3R25N108 $1.1M 1.03% 106,256 SH
33 BERTO ACQUISITION CORP TACO G1051H101 $1.0M 1.00% 98,853 SH
34 GESHER ACQUISITION CORP. II GSHR G3852D107 $1.0M 0.99% 98,832 SH
35 TITAN ACQUISITION CORP TACH G8901A103 $1.0M 0.99% 98,764 SH
36 SIZZLE ACQUISITION CORP. II SZZL G8193F109 $1.0M 0.99% 98,992 SH
37 JENA ACQUISITION CORP II JENA G5093B105 $1.0M 0.99% 98,857 SH
38 REPUBLIC DIGITAL ACQUISITION RDAG G7515A103 $1.0M 0.98% 98,850 SH
39 WEN ACQUISITION CORP WENN G9R39C103 $1.0M 0.98% 98,857 SH
40 IRENIC ACQUISITION CORP IACQU G4939F115 $1.0M 0.98% 100,000 SH
41 KENSINGTON CAP ACQUISITION KCA.U G5235S131 $1.0M 0.98% 100,000 SH
42 DAEDALUS SPL ACQUISITION COR DSAC G2616C108 $1.0M 0.97% 100,000 SH
43 ACP HOLDINGS ACQUISITION COR ACGCU G0113G127 $1.0M 0.97% 100,000 SH
44 EQV VENTURES AC CORP. II EVAC G3106Q102 $1.0M 0.97% 98,865 SH
45 SNOW ROTHSCHILD ACQUISITION ISNRU G8251A125 $1.0M 0.96% 100,000 SH
46 ACTIVATE ENERGY ACQUISIT COR AEAQ G0081J103 $1.0M 0.96% 100,000 SH
47 CARTESIAN GROWTH CORP IV CGCFU G19316127 $1.0M 0.96% 100,000 SH
48 ENERGY TRANSITION SPL OPPORT ETSS.U G23017125 $1.0M 0.96% 100,000 SH
49 KRAKACQUISITION CORPORATION KRAQ G5315G106 $1.0M 0.96% 100,000 SH
50 PATRIOT ACQUISITION CORP PTACU G6951A122 $999.0K 0.96% 100,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-06 $104.0M 174 0001705819-26-000051
2026-03-31 2026-05-05 $93.6M 154 0001705819-26-000034
2025-12-31 2026-01-23 $104.8M 148 0001705819-26-000012