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GRITSTONE ASSET MANAGEMENT LLC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1964236
Institutional-grade research for retail investors

Sector Allocation

  • Financials57.1%$58.9M
  • Other42.6%$43.9M
  • Industrials0.3%$281,434

AUM History

13fpro.ai/research/fund/gritstone-asset-management-llc-1964236

Largest positions — Q3 2026

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/gritstone-asset-management-llc-1964236

GRITSTONE ASSET MANAGEMENT LLC 13F holdings — Q3 2026

$103.1M portfolio (-0.8% QoQ) · 195 holdings · Q3 2026 13F · top 10 are 28% of the stock portfolio

All holdings — GRITSTONE ASSET MANAGEMENT LLC (Q3 2026)

195 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

Company
TLNC$TLNCTalon Capital Corp.$1.5M—
— LEAPFROG ACQUISITION CORP - CL A ORD SHS$1.5M—
LOVIU$LOVIULive Oak Acquisition Corp. VIlp unit$1.5MNew
— STELLAR V CAP CORP - SHS CL A$1.4M—
HVMC$HVMCHighview Merger Corp.$1.3M—
SOCA$SOCASolarius Capital Acquisition Corp.$1.3M—
OBA$OBAOxley Bridge Acquisition Ltd$1.3M—
OTGA$OTGAOTG Acquisition Corp. I$1.3M—
— INFINITE EAGLE ACQUISITION C - CL A$1.3M-29%
— COLOMBIER ACQUISITION CORP I - ORD SHS CL A$1.3M—
— ALUSSA ENERGY ACQUISIT CORP - ORD SHS CL A$1.3M—
— SILICON VY ACQUISITION CORP - CL A$1.3M—
— BLUEROCK ACQUISITION CORP - USD CL A ORD SHS$1.3M—
— LAUNCHPAD CADENZA ACQU CORP - USD CL A ORD SHS$1.3M—
GHXI$GHXIGores Holdings XI, Inc.$1.2MNew

What changed in Q3 2026

Against the previous quarter's 13F: 35 new, 1 added to, 5 trimmed, 19 sold out. Share-count changes; largest moves by dollar size first.

New positions (35)

  • AAC$AACAres Acquisition Corp III$2.5M

    first bought this quarter

  • SAMOS ENERGY ACQUISITION COR - CL A ORD SHS$2.0M

    first bought this quarter

  • LOVIU$LOVIULive Oak Acquisition Corp. VI$1.5M

    first bought this quarter

  • KPET$KPETKPET Ultra Paceline Corp$1.2M

    first bought this quarter

  • ACP HOLDINGS ACQUISITION COR - CL A$1.0M

    first bought this quarter

  • PNAQ$PNAQPinnacle Acquisition Corp$1.0M

    first bought this quarter

+29 more in the Excel export

Added to (1)

  • ARCC$ARCCARES CAPITAL CORP+0.0%

    now $8.5M · held 2 qtrs

Trimmed (5)

  • OACC$OACCOaktree Acquisition Corp. III Life Sciences-51%

    now $2.1M · held 7+ qtrs

  • INFINITE EAGLE ACQUISITION C - CL A-29%

    now $1.3M

  • LPBB$LPBBLaunch Two Acquisition Corp.-78%

    now $2K · held 7+ qtrs

  • KENSINGTON CAP ACQUISITION - UNIT 99/99/9999-0.3%

    now $1.0M

  • EGHA$EGHAEGH Acquisition Corp.-20%

    now $10K · held 6 qtrs

Sold out (19)

  • ARES ACQUISITION CORP III - UNIT 99/99/9999was $2.5M
  • AACB$AACBArtius II Acquisition Inc.was $2.1M

    held 5 qtrs

  • ONEN$ONENONE Nuclear Energy Inc.was $2.1M

    held 5 qtrs

  • NHIC$NHICNewHold Investment Corp. IIIwas $1.3M
  • KPET ULTRA PACELINE CORP - UNIT 99/99/9999was $1.2M
  • ACP HOLDINGS ACQUISITION COR - UNIT 03/30/2031was $1.0M

+13 more in the Excel export

Firm AUM (Form ADV): $114.9M as of 2025-12-31 · SEC IAPD

Holdings by quarter

Every 13F GRITSTONE ASSET MANAGEMENT LLC has filed, 11 earlier quarters. Pick one to see what it held then.

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Q3 2026 13F filed with the SEC on Oct 26, 2026. Prices are closing prices as of Oct 27, 2026.

Average quality of GRITSTONE ASSET MANAGEMENT's top 20 holdings: 61/100 (our AI quality score, weighted by position size; 1 of the 20 are scored)

Top 10 since filing

-0.2%

Value-weighted move of the 10 largest stock positions

Turnover

17%

Last quarter; 78% over the last 4

Top 10 weight

28%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

53%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 1 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2025 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

GRITSTONE ASSET MANAGEMENT LLC disclosed 195 positions worth $103.1M in its Form 13F-HR for Q3 2026, led by $ARCC (ARES CAPITAL CORP) at 8.3% of the equity portfolio, followed by $ALDF and $AAC. During the quarter the fund opened 35 new positions and exited 19 — including a new stake in $AAC. The portfolio is most concentrated in Financials (57.1% of disclosed assets). All figures are sourced directly from GRITSTONE ASSET MANAGEMENT LLC’s Form 13F-HR filing with the SEC under CIK 1964236.

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AI-Powered Hedge Fund Analysis: GRITSTONE ASSET MANAGEMENT LLC

13F Pro is an AI hedge fund tracker and stock research platform. For GRITSTONE ASSET MANAGEMENT LLC (SEC CIK: 1964236), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in GRITSTONE ASSET MANAGEMENT LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.