Who owns ALT5 Sigma (ALTS)
Which tracked institutional funds hold ALTS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ALTS company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on ALTS is one-sided between 2026-Q1 and 2026-Q2: 0 added or opened and 20 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ALTS’s largest tracked holder by dollar value, CRCM LP, sizes it at 4.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 4.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ALTS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 71 tracked filers holding ALTS, 25 increased or opened the position and 53 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ALTS between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 3
- Hunting Hill Global Capital, LLC$2M
- CITADEL ADVISORS LLC$2M
- JANE STREET GROUP, LLC$614K
Largest trims
- CRCM LP$7M
- Diametric Capital, LP$4M
- PRELUDE CAPITAL MANAGEMENT, LLC$3M
- VANGUARD CAPITAL MANAGEMENT LLC$2M
- BlackRock, Inc.$2M
- MILLENNIUM MANAGEMENT LLC$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| CRCM LP added | 12,701,530 | $7M | 14.4% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 6,156,643 | $4M | 7.0% | 2026-Q2 |
| Diametric Capital, LP trimmed | 5,394,578 | $3M | 6.1% | 2026-Q2 |
| BlackRock, Inc. trimmed | 2,489,615 | $1M | 2.8% | 2026-Q2 |
| UBS Group AG added | 2,267,328 | $1M | 2.6% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 2,170,301 | $1M | 2.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,597,432 | $935K | 1.8% | 2026-Q2 |
| Jump Financial, LLC | 1,000,000 | $585K | 1.1% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 799,389 | $468K | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 778,862 | $456K | 0.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 599,969 | $351K | 0.7% | 2026-Q2 |
| STATE STREET CORP | 522,996 | $306K | 0.6% | 2026-Q2 |
| BARCLAYS PLC trimmed | 465,153 | $272K | 0.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 345,419 | $202K | 0.4% | 2026-Q2 |
| NORTHERN TRUST CORP added | 276,452 | $162K | 0.3% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 211,026 | $123K | 0.2% | 2026-Q2 |
| Persistent Asset Partners Ltd new | 190,191 | $111K | 0.2% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. new | 161,651 | $95K | 0.2% | 2026-Q2 |
| MORGAN STANLEY trimmed | 126,259 | $74K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 108,871 | $64K | 0.1% | 2026-Q2 |
| CITIGROUP INC trimmed | 96,218 | $56K | 0.1% | 2026-Q2 |
| Private Advisor Group, LLC | 94,857 | $56K | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 85,660 | $50K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 52,461 | $31K | 0.1% | 2026-Q2 |
| Shay Capital LLC | 50,558 | $30K | 0.1% | 2026-Q2 |
| LPL Financial LLC trimmed | 44,059 | $26K | 0.1% | 2026-Q2 |
| Arkadios Wealth Advisors | 43,520 | $25K | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP added | 35,697 | $21K | 0.0% | 2026-Q2 |
| Savvy Advisors, Inc. added | 35,112 | $21K | 0.0% | 2026-Q2 |
| Federation des caisses Desjardins du Quebec trimmed | 33,400 | $20K | 0.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 30,840 | $18K | 0.0% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 28,810 | $17K | 0.0% | 2026-Q2 |
| Rangeley Capital, LLC trimmed | 25,000 | $15K | 0.0% | 2026-Q2 |
| TWO SIGMA SECURITIES, LLC trimmed | 24,877 | $15K | 0.0% | 2026-Q2 |
| Perennial Investment Advisors, LLC new | 21,839 | $13K | 0.0% | 2026-Q2 |
| SIGNATURE ESTATE & INVESTMENT ADVISORS LLC new | 19,672 | $12K | 0.0% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 19,509 | $11K | 0.0% | 2026-Q2 |
| Empowered Funds, LLC | 19,509 | $11K | 0.0% | 2026-Q2 |
| Harvest Portfolios Group Inc. trimmed | 19,186 | $11K | 0.0% | 2026-Q2 |
| StoneX Group Inc. new | 11,455 | $10K | 0.0% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 16,500 | $10K | 0.0% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 15,793 | $9K | 0.0% | 2026-Q2 |
| MAI Capital Management added | 15,131 | $9K | 0.0% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS | 14,800 | $9K | 0.0% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 14,796 | $9K | 0.0% | 2026-Q2 |
| NATIONAL BANK OF CANADA /FI/ added | 14,920 | $9K | 0.0% | 2026-Q2 |
| Bank of New York Mellon Corp | 14,318 | $8K | 0.0% | 2026-Q2 |
| FIRST CITIZENS BANK & TRUST CO | 13,000 | $8K | 0.0% | 2026-Q2 |
| VOISARD ASSET MANAGEMENT GROUP, INC. | 12,000 | $7K | 0.0% | 2026-Q2 |
| FMR LLC added | 11,703 | $7K | 0.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 10,702 | $6K | 0.0% | 2026-Q2 |
| SCOTIA CAPITAL INC. | 10,000 | $6K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 9,273 | $5K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 5,000 | $3K | 0.0% | 2026-Q2 |
| TD Waterhouse Canada Inc. | 4,262 | $3K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 3,784 | $2K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 3,300 | $2K | 0.0% | 2026-Q2 |
| DELTA ASSET MANAGEMENT LLC/TN | 1,400 | $819 | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. | 1,300 | $767 | 0.0% | 2026-Q2 |
| IFG Advisory, LLC new | 460 | $269 | 0.0% | 2026-Q2 |
| SIGNATUREFD, LLC | 400 | $234 | 0.0% | 2026-Q2 |
| Steward Partners Investment Advisory, LLC | 400 | $234 | 0.0% | 2026-Q2 |
| Truvestments Capital LLC | 168 | $98 | 0.0% | 2026-Q2 |
| HighMark Wealth Management LLC | 100 | $58 | 0.0% | 2026-Q2 |
| Transamerica Financial Advisors, LLC new | 97 | $56 | 0.0% | 2026-Q2 |
| Golden State Wealth Management, LLC | 30 | $18 | 0.0% | 2026-Q2 |
| GILL CAPITAL PARTNERS, LLC | 10 | $6 | 0.0% | 2026-Q2 |
| WOLFF WIESE MAGANA LLC | 1 | $1 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. trimmed | 1 | $1 | 0.0% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO new | 1 | $1 | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 183 | — | 0.0% | 2026-Q2 |
| Hunting Hill Global Capital, LLC new | 1,924,603 | $2M | 4.2% | 2026-Q1 stale (1 quarter behind) |
| CITADEL ADVISORS LLC trimmed | 1,413,849 | $2M | 3.0% | 2026-Q1 stale (1 quarter behind) |
| JANE STREET GROUP, LLC trimmed | 552,911 | $614K | 1.2% | 2026-Q1 stale (1 quarter behind) |
| 683 Capital Management, LLC trimmed | 410,000 | $455K | 0.9% | 2026-Q1 stale (1 quarter behind) |
| SG Americas Securities, LLC added | 367,150 | $408K | 0.8% | 2026-Q1 stale (1 quarter behind) |
| Hudson Bay Capital Management LP new | 220,009 | $244K | 0.5% | 2026-Q1 stale (1 quarter behind) |
| XTX Topco Ltd trimmed | 217,555 | $241K | 0.5% | 2026-Q1 stale (1 quarter behind) |
| Squarepoint Ops LLC new | 186,161 | $207K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| MARSHALL WACE, LLP trimmed | 171,138 | $190K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| Brevan Howard Capital Management LP new | 145,960 | $162K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| PANAGORA ASSET MANAGEMENT INC new | 109,624 | $122K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| SIMPLEX TRADING, LLC trimmed | 94,741 | $105K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Aptus Capital Advisors, LLC added | 90,195 | $100K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC trimmed | 85,639 | $95K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| OMERS ADMINISTRATION Corp trimmed | 73,500 | $82K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA INVESTMENTS, LP trimmed | 69,519 | $77K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC trimmed | 5,856,146 | $6M | 12.5% | 2025-Q4 stale (2 quarters behind) |
| Aristides Capital LLC new | 141,200 | $155K | 0.3% | 2025-Q4 stale (2 quarters behind) |
| NWI MANAGEMENT LP new | 1,800,000 | $5M | 9.4% | 2025-Q3 stale (3 quarters behind) |
| Alyeska Investment Group, L.P. new | 1,746,020 | $5M | 9.1% | 2025-Q3 stale (3 quarters behind) |
| Potrero Capital Research LLC new | 1,104,805 | $3M | 5.8% | 2025-Q3 stale (3 quarters behind) |
| RENAISSANCE TECHNOLOGIES LLC added | 344,300 | $926K | 1.8% | 2025-Q3 stale (3 quarters behind) |
| Centiva Capital, LP new | 232,726 | $626K | 1.2% | 2025-Q3 stale (3 quarters behind) |
| GARDNER LEWIS ASSET MANAGEMENT L P new | 78,975 | $212K | 0.4% | 2025-Q3 stale (3 quarters behind) |
| TORNO CAPITAL, LLC new | 67,700 | $182K | 0.4% | 2025-Q3 stale (3 quarters behind) |
| WOLVERINE TRADING, LLC new | 35,586 | $100K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| Private Capital Advisors, Inc. new | 31,000 | $83K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| Informed Momentum Co LLC new | 43,236 | $313K | 0.6% | 2025-Q2 stale (4 quarters behind) |
| Evernest Financial Advisors, LLC new | 12,000 | $87K | 0.2% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.