Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ALTS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | CRCM LP | 12.6M | $14.0M | +15.3% | 9.019% | 9.91% |
| 2 | Diametric Capital, LP | 6.2M | $6.9M | -34.1% | 4.434% | 1.80% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 5.5M | $6.1M | β | 3.919% | 0.00% |
| 4 | PRELUDE CAPITAL MANAGEMENT, LLC | 3.0M | $3.3M | -41.6% | 2.110% | 0.25% |
| 5 | BlackRock, Inc. | 2.8M | $3.1M | -11.7% | 1.997% | 0.00% |
| 6 | ExodusPoint Capital Management, LP | 2.3M | $2.5M | 0.0% | 1.613% | 0.02% |
| 7 | Hunting Hill Global Capital, LLC | 1.9M | $2.1M | β | 1.376% | 2.42% |
| 8 | UBS Group AG | 1.9M | $2.1M | -0.7% | 1.353% | 0.00% |
| 9 | MILLENNIUM MANAGEMENT LLC | 1.5M | $1.7M | +685.3% | 1.079% | 0.00% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $1.7M | +12.0% | 1.067% | 0.00% |
| 11 | Jump Financial, LLC | 1.0M | $1.1M | 0.0% | 0.715% | 0.02% |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 999K | $1.1M | +36.9% | 0.714% | 0.00% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 774K | $859K | β | 0.553% | 0.00% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 726K | $806K | +42.1% | 0.519% | 0.00% |
| 15 | GOLDMAN SACHS GROUP INC | 710K | $788K | +1249.7% | 0.508% | 0.00% |
| 16 | BARCLAYS PLC | 607K | $674K | -11.2% | 0.434% | 0.00% |
| 17 | STATE STREET CORP | 523K | $581K | -6.1% | 0.374% | 0.00% |
| 18 | 683 Capital Management, LLC | 410K | $455K | -14.6% | 0.293% | 0.04% |
| 19 | BANK OF AMERICA CORP /DE/ | 322K | $357K | +463.7% | 0.230% | 0.00% |
| 20 | NORTHERN TRUST CORP | 271K | $301K | +11.6% | 0.194% | 0.00% |
| 21 | CITIGROUP INC | 255K | $283K | +69.2% | 0.182% | 0.00% |
| 22 | Hudson Bay Capital Management LP | 220K | $244K | β | 0.157% | 0.00% |
| 23 | XTX Topco Ltd | 218K | $241K | -55.6% | 0.156% | 0.00% |
| 24 | Squarepoint Ops LLC | 186K | $207K | β | 0.133% | 0.00% |
| 25 | MARSHALL WACE, LLP | 171K | $190K | -48.2% | 0.122% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ALTS β a direct measure of their conviction.
Filings activity in ALTS during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new ALTS position in Q1 2026
Institutions that fully closed their ALTS position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 87 | +12% | 44.91% | 2.97 pp | $54M | 6.2% |
| Q4 2025 | 78 | 8.2% | 47.88% | 49.35 pp | $57M | 51% |
| Q3 2025 | 85 | +227% | 97.23% | +86.07 pp | $116M | +772% |
| Q2 2025 | 26 | +0.0% | 11.16% | +6.73 pp | $13M | +152% |
| Q1 2025 | 26 | +44% | 4.43% | +0.89 pp | $5M | +25% |
| Q4 2024 | 18 | +5.9% | 3.54% | +2.59 pp | $4M | +274% |
| Q3 2024 | 17 | +13% | 0.95% | +0.50 pp | $1M | +109% |
| Q2 2024 | 15 | β | 0.45% | β | $1M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ALTS stock.
Based on Q1 2026 13F filings, institutional ownership of ALT5 Sigma Corporation stands at 44.9%, held across 87 reporting institutions.
CRCM LP is the largest reported institutional holder of ALTS, with approximately 12,611,530 shares worth $0.01B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of ALTS, including MILLENNIUM MANAGEMENT LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for ALTS is 49 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
22 institutions opened new positions in ALTS during Q1 2026, while 13 fully exited. 39 added to existing positions and 23 trimmed.
ALTS institutional ownership fell by 2.97 percentage points quarter-over-quarter, with a net change of +9 holders.
The top 10 institutions account for 80.8% of all reported 13F value in ALTS, and the top 25 account for 96.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
ALT5 Sigma Corporation (ALTS) Institutional Ownership