Filed: 8/14/2025ACC: 0001081698-25-000005
📋 What this filing means
HEIGHTS CAPITAL MANAGEMENT, INC filed this quarterly 13F‑HR report disclosing 160 equity positions with a total reported market value of $374.71M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
160
Positions
$374.71M
Total AUM (reported)
58.55M
Total Shares
Allocation by class
SHS$102.11M27.2%
COM$78.34M20.9%
SHS NEW$38.80M10.4%
COM CL A$25.09M6.7%
COM NEW$13.93M3.7%
ORD SHS$13.39M3.6%
ORD SHS CL A$11.92M3.2%
Portfolio Concentration
Top 3$164.16M43.8%
4–10$79.48M21.2%
11–25$63.12M16.8%
Rest$67.95M18.1%
Top 3 weight
43.8%
Top 10 weight
65.0%
Voting Authority Distribution
Total shares with voting rights: 44.90M
Sole
Full voting authority
44.90M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole0
Shared0
Other160
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings160
Rows:
FLUTTER ENTMT PLC
OTRShares294.18K
TypeSH
Market value$84.06M
22.43%
Sole
294.18K
Shared
0.00
None
0.00
NANO NUCLEAR ENERGY INC
OTRShares1.59M
TypeSH
Market value$55.01M
14.68%
Sole
374.57K
Shared
0.00
None
0.00
ARCHER AVIATION INC
OTRShares2.31M
TypeSH
Market value$25.09M
6.70%
Sole
2.31M
Shared
0.00
None
0.00
AMERICAN SUPERCONDUCTOR CORP
OTRShares683K
TypeSH
Market value$25.06M
6.69%
Sole
340.10K
Shared
0.00
None
0.00
NANO LABS LTD
OTRShares1.44M
TypeSH
Market value$13.36M
3.57%
Sole
1.44M
Shared
0.00
None
0.00
ALVOTECH
OTRShares1.09M
TypeSH
Market value$9.95M
2.65%
Sole
1.09M
Shared
0.00
None
0.00
OATLY GROUP AB
OTRShares12.05M
TypePRN
Market value$8.33M
2.22%
Sole
0.00
Shared
0.00
None
0.00
FG MERGER II CORP
OTRShares790K
TypeSH
Market value$7.80M
2.08%
Sole
790K
Shared
0.00
None
0.00
ADC THERAPEUTICS SA
OTRShares2.83M
TypeSH
Market value$7.59M
2.03%
Sole
2.83M
Shared
0.00
None
0.00
ONDAS HLDGS INC
OTRShares3.85M
TypeSH
Market value$7.38M
1.97%
Sole
3.85M
Shared
0.00
None
0.00
JACKSON ACQUISITION CO II
OTRShares700K
TypeSH
Market value$7.21M
1.92%
Sole
700K
Shared
0.00
None
0.00
BIOMEA FUSION INC
OTRShares3.84M
TypeSH
Market value$6.91M
1.84%
Sole
3.84M
Shared
0.00
None
0.00
DRUGS MADE IN AMER ACQUTN CO
OTRShares650K
TypeSH
Market value$6.63M
1.77%
Sole
650K
Shared
0.00
None
0.00
KOCHAV DEFENSE ACQUI CO
OTRShares500K
TypeSH
Market value$5.09M
1.36%
Sole
500K
Shared
0.00
None
0.00
GP-ACT III ACQUISITION CORP
OTRShares459.50K
TypeSH
Market value$4.85M
1.29%
Sole
459.50K
Shared
0.00
None
0.00
CABALETTA BIO INC
OTRShares3.14M
TypeSH
Market value$4.78M
1.28%
Sole
3.14M
Shared
0.00
None
0.00
FIFTH ERA ACQUISITION CORP I
OTRShares350K
TypeSH
Market value$3.55M
0.95%
Sole
350K
Shared
0.00
None
0.00
KRATOS DEFENSE & SEC SOLUTIO
OTRShares75K
TypeSH
Market value$3.48M
0.93%
Sole
75K
Shared
0.00
None
0.00
FUTURE VISION II ACQUISITION
OTRShares325K
TypeSH
Market value$3.38M
0.90%
Sole
325K
Shared
0.00
None
0.00
FLAG SHIP ACQUISITION CORP
OTRShares314K
TypeSH
Market value$3.31M
0.88%
Sole
314K
Shared
0.00
None
0.00
COLUMBUS CIRCLE CAP CORP. I
OTRShares271K
TypeSH
Market value$3.12M
0.83%
Sole
271K
Shared
0.00
None
0.00
COPLEY ACQUISITION CORP
OTRShares300K
TypeSH
Market value$3.03M
0.81%
Sole
300K
Shared
0.00
None
0.00
IB ACQUISITION CORP
OTRShares249.10K
TypeSH
Market value$2.61M
0.70%
Sole
249.10K
Shared
0.00
None
0.00
VOYAGER ACQUISITION CORP
OTRShares250K
TypeSH
Market value$2.59M
0.69%
Sole
250K
Shared
0.00
None
0.00
PLUM ACQUISITION CORP IV
OTRShares250K
TypeSH
Market value$2.58M
0.69%
Sole
250K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
FLUTTER ENTMT PLCOTR | SHS | 294.18K | SH | $84.06M 22.43% | 294.18K | 0.00 | 0.00 |
NANO NUCLEAR ENERGY INCOTR | COM | 1.59M | SH | $55.01M 14.68% | 374.57K | 0.00 | 0.00 |
ARCHER AVIATION INCOTR | COM CL A | 2.31M | SH | $25.09M 6.70% | 2.31M | 0.00 | 0.00 |
AMERICAN SUPERCONDUCTOR CORPOTR | SHS NEW | 683K | SH | $25.06M 6.69% | 340.10K | 0.00 | 0.00 |
NANO LABS LTDOTR | SHS NEW | 1.44M | SH | $13.36M 3.57% | 1.44M | 0.00 | 0.00 |
ALVOTECHOTR | ORDINARY SHARES | 1.09M | SH | $9.95M 2.65% | 1.09M | 0.00 | 0.00 |
OATLY GROUP ABOTR | NOTE 9.250% 9/1 | 12.05M | PRN | $8.33M 2.22% | 0.00 | 0.00 | 0.00 |
FG MERGER II CORPOTR | COM | 790K | SH | $7.80M 2.08% | 790K | 0.00 | 0.00 |
ADC THERAPEUTICS SAOTR | SHS | 2.83M | SH | $7.59M 2.03% | 2.83M | 0.00 | 0.00 |
ONDAS HLDGS INCOTR | COM NEW | 3.85M | SH | $7.38M 1.97% | 3.85M | 0.00 | 0.00 |
JACKSON ACQUISITION CO IIOTR | COM SHS CL A | 700K | SH | $7.21M 1.92% | 700K | 0.00 | 0.00 |
BIOMEA FUSION INCOTR | COM | 3.84M | SH | $6.91M 1.84% | 3.84M | 0.00 | 0.00 |
DRUGS MADE IN AMER ACQUTN COOTR | ORD SHS | 650K | SH | $6.63M 1.77% | 650K | 0.00 | 0.00 |
KOCHAV DEFENSE ACQUI COOTR | UNIT 05/21/2030 | 500K | SH | $5.09M 1.36% | 500K | 0.00 | 0.00 |
GP-ACT III ACQUISITION CORPOTR | CL A | 459.50K | SH | $4.85M 1.29% | 459.50K | 0.00 | 0.00 |
CABALETTA BIO INCOTR | COM | 3.14M | SH | $4.78M 1.28% | 3.14M | 0.00 | 0.00 |
FIFTH ERA ACQUISITION CORP IOTR | ORD SHS CL A | 350K | SH | $3.55M 0.95% | 350K | 0.00 | 0.00 |
KRATOS DEFENSE & SEC SOLUTIOOTR | COM NEW | 75K | SH | $3.48M 0.93% | 75K | 0.00 | 0.00 |
FUTURE VISION II ACQUISITIONOTR | SHS | 325K | SH | $3.38M 0.90% | 325K | 0.00 | 0.00 |
FLAG SHIP ACQUISITION CORPOTR | ORD SHS | 314K | SH | $3.31M 0.88% | 314K | 0.00 | 0.00 |
COLUMBUS CIRCLE CAP CORP. IOTR | UNIT 05/16/2030 | 271K | SH | $3.12M 0.83% | 271K | 0.00 | 0.00 |
COPLEY ACQUISITION CORPOTR | UNIT 99/99/9999 | 300K | SH | $3.03M 0.81% | 300K | 0.00 | 0.00 |
IB ACQUISITION CORPOTR | COM SHS | 249.10K | SH | $2.61M 0.70% | 249.10K | 0.00 | 0.00 |
VOYAGER ACQUISITION CORPOTR | CL A | 250K | SH | $2.59M 0.69% | 250K | 0.00 | 0.00 |
PLUM ACQUISITION CORP IVOTR | SHS CL A | 250K | SH | $2.58M 0.69% | 250K | 0.00 | 0.00 |
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