Who owns STAI
Which tracked institutional funds hold STAI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See STAI company fundamentals →
Ownership as of the 2025-Q3 13F filings (latest filed 2025-11-14). 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 STAI is one-sided between 2025-Q3 and 2025-Q4: 0 added or opened and 2 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
STAI’s largest tracked holder by dollar value, York Capital Management Global Advisors, LLC, sizes it at 2.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 2.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in STAI 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 2025-Q2 and 2025-Q3, across 17 tracked filers holding STAI, 9 increased or opened the position and 4 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 STAI between the 2025-Q3 and 2025-Q4 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 1
- York Capital Management Global Advisors, LLC$714K
Largest trims
- Polar Asset Management Partners Inc.$497K
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 |
|---|---|---|---|---|
| York Capital Management Global Advisors, LLC | 1,700,000 | $714K | 57.4% | 2025-Q3 |
| Polar Asset Management Partners Inc. trimmed | 75,000 | $125K | 10.0% | 2025-Q4 |
| VANGUARD GROUP INC trimmed | 21,986 | $54K | 4.3% | 2025-Q4 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 20,970 | $52K | 4.1% | 2025-Q4 |
| TWO SIGMA INVESTMENTS, LP trimmed | 54,051 | $22K | 1.8% | 2025-Q3 |
| STATE STREET CORP | 45,600 | $19K | 1.5% | 2025-Q3 |
| UBS Group AG trimmed | 5,119 | $13K | 1.0% | 2025-Q4 |
| EWA, LLC new | 28,730 | $12K | 1.0% | 2025-Q3 |
| NORTHERN TRUST CORP | 22,208 | $9K | 0.7% | 2025-Q3 |
| SG Americas Securities, LLC new | 21,052 | $9K | 0.7% | 2025-Q3 |
| TWO SIGMA SECURITIES, LLC new | 18,232 | $8K | 0.6% | 2025-Q3 |
| BROWN ADVISORY INC | 12,665 | $5K | 0.4% | 2025-Q3 |
| Kellett Wealth Advisors, LLC new | 10,000 | $4K | 0.3% | 2025-Q3 |
| Tower Research Capital LLC (TRC) added | 8,911 | $4K | 0.3% | 2025-Q3 |
| Mint Tower Capital Management B.V. trimmed | 750 | $2K | 0.2% | 2025-Q4 |
| CITIGROUP INC new | 35 | $86 | 0.0% | 2025-Q4 |
| BANK OF AMERICA CORP /DE/ trimmed | 23 | $56 | 0.0% | 2025-Q4 |
| SBI Securities Co., Ltd. trimmed | 7 | $17 | 0.0% | 2025-Q4 |
| MMCAP International Inc. SPC new | 35,000 | $71K | 5.7% | 2025-Q1 stale |
| MILLENNIUM MANAGEMENT LLC new | 29,242 | $59K | 4.8% | 2025-Q1 stale |
| GOLDMAN SACHS GROUP INC new | 18,969 | $39K | 3.1% | 2025-Q1 stale |
| JANE STREET GROUP, LLC new | 11,646 | $24K | 1.9% | 2025-Q1 stale |
| Headlands Technologies LLC new | 45 | $91 | 0.0% | 2025-Q1 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
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.