SEC 13F Intelligence

Managers / Q3 2025 · view latest →

GRITSTONE ASSET MANAGEMENT LLC

CIK 0001964236 · 4800 HAMPDEN LANE, SUITE 200, BETHESDA, MD, 20814 · 240-470-7001

Reported Value
$97M
Q3 2025
Positions
124
Filings on Record
11
2019–present window
Filed
Nov 4, 2025
original filing

Summary

Gritstone Asset Management LLC reported $97M in U.S.-listed holdings across 124 positions for Q3 2025.

Its largest position, ARCC, represents 9.4% of the portfolio.

Compared with Q2 2025, the fund opened 36 new positions and exited 32.

Portfolio Metrics

Turnover
+20.3%
vs prior filed quarter
Top-10 Concentration
+42.5%
share of reported value
Largest Position
+9.4%
Ares Capital
New / Exited
36 / 32
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’22: $79MQ4 ’22Q1 ’23: $79MQ2 ’23: $82MQ2 ’23Q3 ’23: $80MQ1 ’25: $95MQ1 ’25Q2 ’25: $101MQ3 ’25: $97MQ3 ’25Q4 ’25: $105MQ1 ’26: $94MQ1 ’26filingsflow.com

Portfolio Composition

By security type
Other: 90.6%Common Stock: 9.4%Equity WRT: 0.0%
  • Other · 90.6% · $88M
  • Common Stock · 9.4% · $9M
  • Equity WRT · 0.0% · $9,711

Quarter-over-Quarter Changes full breakdown →

vs Q2 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
TALON CAP CORPNEW+150.0K150.0K+$2M$2M
D. BORAL ARC ACQ I CORP.NEW+150.0K150.0K+$1M$1M
HIGHVIEW MERGER CORPNEW+127.0K127.0K+$1M$1M
OTG ACQUISITION CORP. INEW+125.0K125.0K+$1M$1M
SOLARIUS CAPITAL ACQU CORPNEW+125.0K125.0K+$1M$1M
OXLEY BRIDGE ACQ LTDNEW+124.3K124.3K+$1M$1M
SPRING VY ACQUISITION CORP INEW+100.0K100.0K+$1M$1M
TRAILBLAZER ACQUISITION CORPNEW+100.0K100.0K+$1M$1M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q3 2025

77 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1ARCCARES CAPITAL CORPhistory →COM9.38%$9M446.8K
2CHURCHILL CAPITAL CORP IXCL A SHS · *W EXP 03/31/2034.94%$5M604.2K
3EQV VENTURES ACQUISITION CORCL A ORD SHS · *W EXP 07/01/2034.37%$4M537.0K
4ALDEL FINL II INCCL A · *W EXP 09/26/2034.35%$4M591.3K
5OAKTREE ACQUISITION CORP IIISHS CL A · *W EXP 09/01/2034.33%$4M473.9K
6BOLD EAGLE ACQUISITION CORPCL A · RIGHT 10/11/20293.79%$4M738.4K
7CENTURION ACQUISITION CORPSHS CL A · *W EXP 05/31/2033.21%$3M436.5K
8LIONHEART HOLDINGSSHS CL A · *W EXP 06/07/2033.18%$3M436.5K
9ANDRETTI ACQUISITION CORP IIORD SHS CL A · *W EXP 06/01/2032.59%$3M358.2K
10VINE HILL CAP INVT CORP.ORD SHS CL A · *W EXP 07/01/2032.33%$2M295.4K
11SILVERBOX CORP IVSHS CL A · *W EXP 08/19/2022.29%$2M283.2K
12BLEICHROEDER ACQUISITION CORSHS CL A · RIGHT 11/04/20262.24%$2M393.6K
13HENNESSY CAP INVT CORP VIIORD SHS CL A · RIGHT 01/17/20302.13%$2M395.8K
14RITHM ACQUISITION CORPCL A · *W EXP 99/99/9992.13%$2M263.5K
15ARTIUS II ACQUISITION INCSHS CL A · RIGHT 11/27/20292.12%$2M395.3K
16GRAF GLOBAL CORPORD SHS CL A · *W EXP 05/31/2031.92%$2M262.0K
17MOUNTAIN LAKE ACQUISITION COSHS CL A · RIGHT 11/15/20281.79%$2M333.7K
18LAUNCH ONE ACQUISITION CORPSHS CLASS A · *W EXP 06/01/2031.78%$2M244.2K
19LAUNCH TWO ACQUISITION CORP.ORD SHS CL A · *W EXP 10/09/2021.61%$2M220.2K
20CRANE HBR ACQUISITION CORPCL A · RIGHT 04/17/20301.60%$2M298.3K
21K&F GROWTH ACQUISITION CORPSHS CL A · RIGHT 08/29/20311.59%$2M297.5K
22TALON CAP CORPUNIT 08/27/20301.55%$2M150.0K
23D. BORAL ARC ACQ I CORP.SHS CL A · *W EXP 07/23/2031.55%$2M225.0K
24STELLAR V CAP CORPSHS CL A · *W EXP 10/15/2021.44%$1M200.7K
25HIGHVIEW MERGER CORPUNIT 07/24/20301.32%$1M127.0K
26NEWHOLD INVT CORP IIIORD SHS CL A · *W EXP 01/30/2031.32%$1M185.3K
27OTG ACQUISITION CORP. IUNIT 09/05/20301.29%$1M125.0K
28SOLARIUS CAPITAL ACQU CORPSHS CL A · *W EXP 07/10/2031.29%$1M160.0K
29OXLEY BRIDGE ACQ LTDUSD CL A ORD SHS · *W EXP 06/17/2031.28%$1M186.4K
30BERTO ACQUISITION CORPORD SHS · *W EXP 05/01/2031.09%$1M148.3K
31FACT II ACQUISITION CORPORD SHS CL A · *W EXP 11/26/2031.08%$1M150.0K
32REPUBLIC DIGITAL ACQUISITIONUSD CL A ORD SHS · *W EXP 05/01/2031.07%$1M148.3K
33ARCHIMEDES TECH SPAC PARTNERORD SHS · *W EXP 10/15/2021.06%$1M148.6K
34WEN ACQUISITION CORPCOM CL A · *W EXP 99/99/9991.06%$1M148.3K
35SPRING VY ACQUISITION CORP IUNIT 09/04/20301.06%$1M100.0K
36JENA ACQUISITION CORP IIUSD CL A ORD SHS · RIGHT 03/31/20301.05%$1M197.7K
37TRAILBLAZER ACQUISITION CORPUNIT 08/21/20301.05%$1M100.0K
38GESHER ACQUISITION CORP. IIUSD CL A ORD SHS · *W EXP 10/31/2031.05%$1M148.2K
39SIZZLE ACQUISITION CORP. IIUSD CL A ORD SHS · RIGHT 04/02/20301.04%$1M198.0K
40TITAN ACQUISITION CORPCL A · *W EXP 05/16/2031.04%$1M148.1K
41CARTESIAN GROWTH CORP IIICOM CL A · *W EXP 05/02/2031.03%$1M148.3K
42A PARADISE ACQUISITION CORPCOM CL A · RIGHT 07/29/20251.03%$1M200.0K
43EQV VENTURES AC CORP. IIORD SHS CL A · *W EXP 06/30/2031.02%$991,616131.8K
44INFLECTION PT ACQUISITION COCL A ORD SHS · RIGHT 04/25/20300.96%$935,053177.9K
45LIVE OAK ACQUISITION CORP VCL A SHS · *W EXP 99/99/9990.95%$923,905160.8K
46GALATA ACQUISITION CORP IIUNIT 09/12/20300.92%$898,20090.0K
47TRANSLATIONAL DEV ACQUISITIOCOM CL A · *W EXP 12/18/2020.90%$877,918125.5K
48PERCEPTIVE CAP SOLUTIONS CORCL A ORD SHS0.79%$771,11872.7K
49PIONEER ACQUISITION I CORPCL A ORD SHS · *W EXP 06/16/2030.72%$698,093104.0K
50KOCHAV DEFENSE ACQUI COSHS CL A · RIGHT 05/21/20300.57%$557,323108.7K
51AMERICAN EXCEPTIONALISM ACQUORD CL A0.56%$546,50050.0K
521RT ACQUISITION CORP.USD CL A ORD SHS · *W EXP 06/26/2030.54%$527,57461.8K
53HCM III ACQUISITION CORPUNIT 07/23/20300.53%$515,50050.0K
54CAL REDWOOD ACQUISITION CORPCOM CL A · RIGHT 05/15/20300.52%$505,20998.9K
55EGH ACQUISITION CORP.SHS CL A · RIGHT 05/08/20250.52%$505,11398.8K
56OYSTER ENTERPRISES II ACQUISORD SHS CL A · RIGHT 05/22/20300.52%$503,78098.9K
57PYROPHYTE ACQUISITION CORP.CL A SHS · *W EXP 07/30/2030.52%$502,67674.4K
58COHEN CIRCLE ACQUISIT CORP ISHS CL A0.26%$251,37524.8K
59AGRICULTURE & NAT SOL ACQ CO*W EXP 10/01/2020.13%$130,184484.9K
60ISRAEL ACQUISITIONS CORP*W EXP 99/99/9990.13%$125,994690.4K
61LEGATO MERGER CORP III*W EXP 05/08/2030.09%$85,966231.6K
62GIGCAPITAL7 CORP*W EXP 08/29/2020.09%$84,818188.5K
63GP-ACT III ACQUISITION CORP*W EXP 05/13/2020.06%$56,484217.2K
64HAYMAKER ACQUISITION CORP IV*W EXP 05/31/2020.04%$41,018103.8K
65RANGE CAP ACQUISITION CORPRIGHT 99/99/99990.04%$34,73373.9K
66FLAG SHIP ACQUISITION CORPRIGHT 03/31/20260.03%$32,827182.4K
67A SPAC III ACQUISITION CORPRIGHT 01/02/20260.03%$28,154147.7K
68SIM ACQUISITION CORP. I*W EXP 06/01/2030.03%$27,95175.5K
69PROCAP ACQUISITION CORP*W EXP 05/16/2030.02%$21,41933.0K
70VOYAGER ACQUISITION CORP*W EXP 05/16/2030.02%$16,60097.6K
71ALCHEMY INVTS ACQUISITN CORP*W EXP 11/30/2020.02%$15,96993.9K
72JACKSON ACQUISITION CO IIRIGHT 99/99/99990.01%$10,61139.3K
73IRON HORSE ACQUISITIONS CORP*W EXP 99/99/9990.01%$9,71196.1K
74MELAR ACQUISITION CORP. I*W EXP 06/01/2030.01%$6,89644.1K
75PLUM ACQUISITION CORP IV*W EXP 08/19/2020.00%$3,33812.4K
76KEEN VISION ACQUISITION CORP*W EXP 03/15/2020.00%$2,92148.5K
77RF ACQUISITION CORP IIRIGHT 05/01/20260.00%$1,80322.5K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$94M154May 5, 202613F-HRchanges · EDGAR ↗
Q4 2025$105M148Jan 23, 202613F-HRchanges · EDGAR ↗
Q3 2025$97M124Nov 4, 202513F-HRchanges · EDGAR ↗
Q2 2025$101M120Jul 25, 202513F-HRchanges · EDGAR ↗
Q1 2025$95M89May 15, 202513F-HRchanges · EDGAR ↗
Q3 2023$80M121Oct 20, 202313F-HRchanges · EDGAR ↗
Q2 2023$82M131Aug 7, 202313F-HRchanges · EDGAR ↗
Q1 2023$79M167May 5, 202313F-HRchanges · EDGAR ↗
Q4 2022$79M213Feb 15, 2023RESTATEMENTchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.