41 tracked 13F filers disclose a position in SDHI as of the latest SEC 13F filings, a combined $243.2M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | $18.1M | 1.8M | —Held | Q1 2026 | |
| 2 | ARISTEIA CAPITAL, L.L.C. | $17.1M | 1.6M | —Held | Q1 2026 | |
| 3 | TENOR CAPITAL MANAGEMENT Co., L.P. | $14.2M | 1.4M | —Held | Q1 2026 | |
| 4 | First Trust Capital Management L.P. | $13.5M | 1.3M | ▼−21% Reduced · −355K sh | Q1 2026 | |
| 5 | AQR Arbitrage LLC | $13.0M | 1.3M | ▼−4.0% Reduced · −53K sh | Q1 2026 | |
| 6 | HGC Investment Management Inc. | $12.9M | 1.3M | —Held | Q1 2026 | |
| 7 | Westchester Capital Management, LLC | $13.0M | 1.2M | ▼−7.4% Reduced · −100K sh | Q1 2026 | |
| 8 | METEORA CAPITAL, LLC | $11.7M | 1.1M | ▼−0.1% Reduced · −981 sh | Q1 2026 | |
| 9 | Hudson Bay Capital Management LP | $10.6M | 1.0M | —Held | Q1 2026 | |
| 10 | Polar Asset Management Partners Inc. | $10.3M | 1.0M | —Held | Q1 2026 | |
| 11 | Shaolin Capital Management LLC | $8.4M | 815K | ▲+36% Added · +215K sh | Q1 2026 | |
| 12 | LINDEN ADVISORS LP | $8.3M | 800K | —Held | Q1 2026 | |
| 13 | MILLENNIUM MANAGEMENT LLC | $7.7M | 745K | ▼−12% Reduced · −102K sh | Q1 2026 | |
| 14 | Alberta Investment Management Corp | $7.3M | 700K | —Held | Q1 2026 | |
| 15 | Radcliffe Capital Management, L.P. | $7.2M | 694K | ▲+1.5% Added · +10K sh | Q1 2026 | |
| 16 | D. E. Shaw & Co., Inc. | $6.9M | 662K | ▲+309% Added · +500K sh | Q1 2026 | |
| 17 | Verition Fund Management LLC | $5.9M | 567K | ▼−4.3% Reduced · −25K sh | Q1 2026 | |
| 18 | PICTON MAHONEY ASSET MANAGEMENT | $5.2M | 500K | —Held | Q1 2026 | |
| 19 | BERKLEY W R CORP | $4.9M | 474K | ▲+111% Added · +249K sh | Q1 2026 | |
| 20 | TWO SIGMA INVESTMENTS, LP | $4.3M | 416K | —Held | Q1 2026 | |
| 21 | GOLDMAN SACHS GROUP INC | $4.3M | 413K | ▲+0.1% Added · +247 sh | Q1 2026 | |
| 22 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $4.1M | 400K | —Held | Q1 2026 | |
| 23 | Jain Global LLC | $4.2M | 400K | ▼−20% Reduced · −100K sh | Q1 2026 | |
| 24 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $3.7M | 355K | ▼−11% Reduced · −45K sh | Q1 2026 | |
| 25 | Karpus Management, Inc. | $3.5M | 339K | ▲+25% Added · +68K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 2 funds opened a new position in SDHI and 5 added to an existing one, while 9 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| CAL REDWOOD ACQUISIT-CL ACRAQ | 22 funds | $95.4M |
| HIGHVIEW MERGER CORP-CL AHVMC | 22 funds | $92.4M |
| DRUGS MADE IN AMERICA ACQUISDMII | 21 funds | $183.9M |
| K&F GROWTH ACQUISITION COR-AKFII | 21 funds | $149.0M |
| EQV VENTURES ACQUISITION C-AEVAC | 21 funds | $141.8M |
| SOULPOWER ACQUISITION CO-ASOUL | 21 funds | $124.9M |
| CANTOR EQUITY PARTNERS-CL ACEPF | 21 funds | $98.3M |
| PIONEER ACQUISITION I-CL APACH | 21 funds | $95.5M |
| CSLM DIGITAL ASSET ACQU - AKOYN | 21 funds | $92.2M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 21 funds | $78.7M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 21 funds | $78.4M |
| SOLARIUS CAPITAL ACQUIS-CL ASOCA | 21 funds | $75.5M |
Ranked by how many of SDHI's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 2, 2025 | Siddhi Sponsor LLC | 10% Owner | Buy (P) | 338K | — |
| Apr 2, 2025 | FINN BRIAN D | Director, 10% Owner | Buy (P) | 338K | — |
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/SDHI/capital-change-brief"
Use Arkolith's capital_change_brief for SDHI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for SDHI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.