Heights Capital Management, Inc holds a focused book of 264 stocks worth $357.1M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened SOLID POWER INC and trimmed GP-ACT III ACQUISITION CORP. Their largest long position is SOLID POWER INC at 10% of the equity book. They also disclosed $1.7M in put options (a bearish bet), shown separately below and excluded from the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1081698/holdings"
Use Arkolith to show HEIGHTS CAPITAL MANAGEMENT, INC's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
0% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Solid Power Inc CLASS A COM | $37.2M | 12.40M | 10.4% | ▲New New position | |
| 2 | Flutter Entmt PLC SHS | $30.0M | 294.2K | 8.4% | —Held | |
| 3 | Ionq Inc COM | $23.5M | 815.5K | 6.6% | ▲New New position | |
| 4 | Compass Pathways PLC SPONSORED ADS | $8.3M | 1.49M | 2.3% | ▲New New position | |
| 5 | Sealsq Corp ORD SHS | $8.2M | 3.14M | 2.3% | ▲New New position | |
| 6 | FG Merger II Corp COM | $8.0M | 790.0K | 2.2% | —Held | |
| 7 | Jackson Acquisition Co II COM SHS CL A | $7.4M | 700.0K | 2.1% | —Held | |
| 8 | Drugs Made In Amer Acqutn Co ORD SHS | $6.8M | 650.0K | 1.9% | —Held | |
| 9 | Pono Cap Four Inc UNIT 03/11/2031 | $5.5M | 550.0K | 1.5% | ▲New New position | |
| 10 | M3brigade Acquisition V Corp CL A | $5.4M | 500.0K | 1.5% | ▲New New position | |
| 11 | Drugs Made In Amer Acq II Co USD ORD SHS | $5.2M | 519.4K | 1.5% | ▲New New position | |
| 12 | Kochav Defense Acqui Co SHS CL A | $5.1M | 500.0K | 1.4% | —Held | |
| 13 | Bhav Acquisition Corp UNIT 03/18/2031 | $4.9M | 495.0K | 1.4% | ▲New New position | |
| 14 | XFLH Cap Corp UNIT 99/99/9999 | $4.7M | 475.0K | 1.3% | ▲New New position | |
| 15 | Iron Horse Acquisit II Corp COM | $4.6M | 470.0K | 1.3% | ▲New New position | |
| 16 | NMP Acquisition Corp CL A | $4.6M | 450.0K | 1.3% | —Held | |
| 17 | Churchill Cap Corp XI CL A ORD SHS | $4.6M | 448.2K | 1.3% | ▲New New position | |
| 18 | Empery Digital Inc COM NEW | $4.2M | 1.00M | 1.2% | —Held | |
| 19 | GP-Act III Acquisition Corp CL A | $4.2M | 388.7K | 1.2% | ▼−6.6% Reduced · −27K sh | |
| 20 | Candel Therapeutics Inc COM | $3.8M | 775.0K | 1.1% | ▲New New position | |
| 21 | Armada Acquisition Corp III UNIT 02/13/2031 | $3.6M | 365.0K | 1.0% | ▲New New position | |
| 22 | Fifth Era Acquisition Corp I ORD SHS CL A | $3.6M | 350.0K | 1.0% | —Held | |
| 23 | Emmis Acquisition Corp. SHS CL A | $3.5M | 350.0K | 1.0% | —Held | |
| 24 | Future Vision II Acquisition SHS | $3.5M | 325.0K | 1.0% | —Held | |
| 25 | Twelve Seas Invt Co III ORD SHS CL A | $3.5M | 350.0K | 1.0% | ▲New New position | |
| 26 | Flag Ship Acquisition Corp ORD SHS | $3.3M | 302.3K | 0.9% | ▼−1.4% Reduced · −4K sh | |
| 27 | Copley Acquisition Corp ORD SHS CL A | $3.1M | 300.0K | 0.9% | —Held | |
| 28 | AI Infrastructure Acquisi ORD SHS CL A | $3.0M | 300.0K | 0.8% | ▲New New position | |
| 29 | Newbridge Acquisition Ltd UNIT 11/18/2030 | $3.0M | 300.0K | 0.8% | ▲New New position | |
| 30 | Hennessy Cap Invts Corp VIII UNIT 02/02/2031 | $3.0M | 300.0K | 0.8% | ▲New New position | |
| 31 | Future Money Acquisition Cor UNIT 03/16/2031 | $3.0M | 300.0K | 0.8% | ▲New New position | |
| 32 | Bleichroeder Acquisiti Corp USD CL A ORD SHS | $2.8M | 279.5K | 0.8% | ▲New New position | |
| 33 | Plum Acquisition Corp IV SHS CL A | $2.6M | 250.0K | 0.7% | —Held | |
| 34 | Thayer Ventures Acq Corp II CL A | $2.6M | 250.0K | 0.7% | —Held | |
| 35 | Origin Invt Corp I ORD SHS | $2.6M | 249.9K | 0.7% | —Held | |
| 36 | Oxley Bridge Acq Ltd USD CL A ORD SHS | $2.5M | 250.0K | 0.7% | —Held | |
| 37 | Meshflow Acquisition Corp USD CL A ORD SHS | $2.5M | 250.0K | 0.7% | ▲New New position | |
| 38 | Championsgate Acquisition Co SHS CL A | $2.2M | 212.2K | 0.6% | —Held | |
| 39 | Lake Superior Acquisition Co USD CL A ORD SHS | $2.1M | 210.0K | 0.6% | —Held | |
| 40 | Lakeshore Acquisition III Co USD ORD SHS | $2.1M | 200.0K | 0.6% | —Held | |
| 41 | Sizzle Acquisition Corp. II USD CL A ORD SHS | $2.1M | 200.0K | 0.6% | —Held | |
| 42 | Soulpower Acquisition Corp USD CL A ORD SHS | $2.0M | 200.0K | 0.6% | —Held | |
| 43 | Spring Vy Acquisition Corp I UNIT 01/22/2031 | $2.0M | 200.0K | 0.6% | ▲New New position | |
| 44 | A Paradise Acquisition Corp COM CL A | $2.0M | 199.6K | 0.6% | —Held | |
| 45 | Silver Pegasus Acquisition C SHS CL A | $2.0M | 199.1K | 0.6% | —Held | |
| 46 | Aa Mission Acquisition Corp ORD SHS CL A | $2.0M | 200.0K | 0.6% | ▲New New position | |
| 47 | Crown Resv Acquisition Corp ORD SHS CL A | $2.0M | 200.0K | 0.6% | —Held | |
| 48 | Krakacquisition Corporation UNIT 12/23/2030 | $2.0M | 200.0K | 0.6% | ▲New New position | |
| 49 | Dynamix Corp III USD CL A ORD SHS | $2.0M | 200.0K | 0.6% | ▲New New position | |
| 50 | Armada Acquisition Corp II COM CL A | $2.0M | 191.3K | 0.6% | —Held |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | NANO NUCLEAR ENERGY INC | $1.7M | 81K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 265 | $358.8M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 192 | $278.8M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 18, 2025 | 182 | $351.0M | 13F-HR/A |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 162 | $374.7M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 14, 2025 | 129 | $213.0M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 146 | $202.2M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 138 | $134.8M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.