HEIGHTS CAPITAL MANAGEMENT INC
Q2 2025 Form 13-F

SAN FRANCISCO, CALIFORNIA
CIK 0001081698 · Institutional investment manager
Consolidated report · includes 1 manager since Q3 2024
$374.7M Reported Value Total
Reported value
$374.7M
Quarter over quarter
+21.8%
Holdings
157
Top-10 concentration
61.0%

Filing Structure

Reports holdings for

Holdings reported by

  • SIG China Investments Master Fund III LLLP (not a 13F filer in our records) · Q4 2020 – Q2 2024 · declared by one filing
  • CVI Holdings LLC · Q1 2018 – Q2 2024 · declared by one filing
  • SUSQUEHANNA INTERNATIONAL GROUP LLP · Q2 2013 – Q4 2017 · declared by one filing

Key People

Named on the latest Form 13-F filing — not necessarily an owner
Brian Sopinsky
Assistant Secretary

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13F Metrics

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Q2 2025 13F record

Q2 2025 13F filing summary

Q2 2025 Form 13F portfolio summary
Period of report June 30, 2025
Filed August 14, 2025
Form 13F-HR
Reported value $374.7M
Positions 157
Change in reported value +75.9%
New positions 96
Exited positions 66
Position turnover 72.7%
Top-10 concentration 61.0%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q2 2026 13F
Filed Aug 14, 2026
323 $433.1M
Q1 2026 13F
Filed May 15, 2026
264 $358.8M
Q4 2025 13F
Filed Feb 17, 2026
191 $278.8M
Q3 2025 13F
Filed Nov 14, 2025
179 $351.0M
Q2 2025 13F
Filed Aug 14, 2025
157 $374.7M
Q1 2025 13F
Filed May 14, 2025
125 $213.0M
Q4 2024 13F
Filed Feb 14, 2025
142 $202.2M
Q3 2024 13F
Filed Nov 14, 2024
137 $134.8M

Top 20 holdings · Q2 2025

Largest Q2 2025 13F positions by reported value
# Holding Reported value % of portfolio
1 FLUT FLUTTER ENTMT PLC $84.1M 22.43%
2 NNE P NANO NUCLEAR ENERGY INC $42.1M 11.23%
3 ACHR ARCHER AVIATION INC $25.1M 6.7%
4 NA NANO LABS LTD $13.4M 3.57%
5 NNE NANO NUCLEAR ENERGY INC $12.9M 3.45%
6 AMSC P AMERICAN SUPERCONDUCTOR CORP $12.6M 3.36%
7 AMSC AMERICAN SUPERCONDUCTOR CORP $12.5M 3.33%
8 ALVO ALVOTECH $9.9M 2.65%
9 OTLY 9.25 09/14/28 OATLY GROUP AB $8.3M 2.22%
10 FGMC FG MERGER II CORP $7.8M 2.08%
11 ADCT ADC THERAPEUTICS SA $7.6M 2.03%
12 ONDS ONDAS HLDGS INC $7.4M 1.97%
13 JACS JACKSON ACQUISITION CO II $7.2M 1.92%
14 BMEA BIOMEA FUSION INC $6.9M 1.84%
15 DMAA DRUGS MADE IN AMER ACQUTN CO $6.6M 1.77%
16 KCHVU KOCHAV DEFENSE ACQUI CO $5.1M 1.36%
17 GPAT GP-ACT III ACQUISITION CORP $4.8M 1.29%
18 CABA CABALETTA BIO INC $4.8M 1.28%
19 FERA FIFTH ERA ACQUISITION CORP I $3.6M 0.95%
20 KTOS KRATOS DEFENSE & SEC SOLUTIO $3.5M 0.93%

Values as reported on the Q2 2025 Form 13F. Every position is in the holdings table below.

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