Institutional Manager · CIK 0001081698
HEIGHTS CAPITAL MANAGEMENT, INC
SAN FRANCISCO, CA · File #028-13218
Latest AUM
$278.8M
Positions
192
Top-10 Concentration
55.0%
Filings
11
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| EXITED | IMMUNITYBIO INC | 45256X103 | -6,565,709 | -$16.2M | $0 |
| EXITED | SONNET BIOTHERAPEUTC HLDNG I | 83548R402 | -3,000,000 | -$13.7M | $0 |
| EXITED | OATLY GROUP AB | 67421JAC2 | -12,052,970 | -$10.7M | $0 |
| REDUCE | NANO NUCLEAR ENERGY INC | NNE | -321,100 | -$7.7M | -$13.5M |
| EXITED | M3BRIGADE ACQUISITION V CORP | G63212107 | -500,000 | -$5.3M | $0 |
| NEW | CHURCHILL CAP CORP XI | G2131A124 | +499,000 | +$5.1M | $0 |
| EXITED | CABALETTA BIO INC | 12674W109 | -2,084,202 | -$4.9M | $0 |
| NEW | IRON HORSE ACQUISIT CORP II | 46283H202 | +470,000 | +$4.7M | $0 |
| EXITED | NMP ACQUISITION CORP | G6375X120 | -450,000 | -$4.5M | $0 |
| NEW | NMP ACQUISITION CORP | NMPAU | +450,000 | +$4.5M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025192 pos · $278.8M
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2025182 pos · $351.0M
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2025182 pos · $351.0M
- 13F HOLDINGS REPORTQ/E Sep 2025183 pos · $364.7M
- 13F HOLDINGS REPORTQ/E Jun 2025162 pos · $374.7M
- 13F HOLDINGS REPORTQ/E Mar 2025129 pos · $213.0M
- 13F HOLDINGS REPORTQ/E Dec 2024146 pos · $202.2M
- 13F HOLDINGS REPORTQ/E Sep 2024138 pos · $134.8M
- 13F NOTICEQ/E Jun 20240 pos · $0
- 13F NOTICEQ/E Mar 20240 pos · $0
- 13F NOTICEQ/E Dec 20230 pos · $0
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | FLUTTER ENTMT PLC | G3643J108 | 294,180 | $63.3M | 27.98% |
| 2 | NANO NUCLEAR ENERGY INC | NNE | 608,500 | $14.6M | 6.46% |
| 3 | FG MERGER II CORP | FGMCU | 790,000 | $7.9M | 3.51% |
| 4 | JACKSON ACQUISITION CO II | JACS-UN | 700,000 | $7.3M | 3.23% |
| 5 | DRUGS MADE IN AMER ACQUTN CO | G2847J104 | 650,000 | $6.7M | 2.98% |
| 6 | DRUGS MADE IN AMER ACQ II CO | G2851K120 | 519,400 | $5.2M | 2.30% |
| 7 | CHURCHILL CAP CORP XI | G2131A124 | 499,000 | $5.1M | 2.25% |
| 8 | KOCHAV DEFENSE ACQUI CO | KCHVU | 500,000 | $5.1M | 2.24% |
| 9 | IRON HORSE ACQUISIT CORP II | 46283H202 | 470,000 | $4.7M | 2.07% |
| 10 | EMPERY DIGITAL INC | EMPD | 1,000,000 | $4.6M | 2.02% |
| 11 | NMP ACQUISITION CORP | NMPAU | 450,000 | $4.5M | 1.99% |
| 12 | GP-ACT III ACQUISITION CORP | GPATW | 416,096 | $4.5M | 1.97% |
| 13 | ABSCI CORPORATION | ABSI | 1,065,640 | $3.7M | 1.65% |
| 14 | FIFTH ERA ACQUISITION CORP I | FERAU | 350,000 | $3.6M | 1.59% |
| 15 | NYXOAH S A | NYXH | 777,188 | $3.6M | 1.58% |
| 16 | TWELVE SEAS INVT CO III | G9145D127 | 350,000 | $3.5M | 1.54% |
| 17 | EMMIS ACQUISITION CORP. | EMISR | 350,000 | $3.5M | 1.54% |
| 18 | FUTURE VISION II ACQUISITION | FVNNU | 325,000 | $3.4M | 1.52% |
| 19 | FLAG SHIP ACQUISITION CORP | FSHPR | 306,569 | $3.3M | 1.46% |
| 20 | CRESCENT BIOPHARMA INC. | CBIO | 264,000 | $3.1M | 1.38% |