Who owns ANSC (ANSC)
Which tracked institutional funds hold ANSC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ANSC company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
13 tracked funds added or opened ANSC while 7 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
ANSC’s largest tracked holder by dollar value, MIZUHO SECURITIES USA LLC, sizes it at 0.8% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.7pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ANSC 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-Q4 and 2026-Q1, across 47 tracked filers holding ANSC, 16 increased or opened the position and 15 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 ANSC between the 2025-Q4 and 2026-Q1 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.
New buyers 5
- HIGHBRIDGE CAPITAL MANAGEMENT LLC$6M
- O'Connor Alternative Investments LLC$4M
- RLH Capital LLC$3M
- SONA ASSET MANAGEMENT (US) LLC$1M
- Centiva Capital, LP$1M
Full exits 2
- OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)$4M
- Hudson Bay Capital Management LP$2M
Largest adds
- Crossingbridge Advisors, LLC$18M
- JPMORGAN CHASE & CO$6M
- BERKLEY W R CORP$1M
- Shaolin Capital Management LLC$1M
- Westchester Capital Management, LLC$1M
- MIZUHO SECURITIES USA LLC$1M
Largest trims
- First Trust Capital Management L.P.$16M
- Quarry LP$3M
- GLAZER CAPITAL, LLC$3M
- TORONTO DOMINION BANK$937K
- Lineage Point Capital LP$875K
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 |
|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC added | 2,951,189 | $33M | 7.0% | 2026-Q1 |
| BERKLEY W R CORP added | 2,626,532 | $30M | 6.3% | 2026-Q1 |
| Westchester Capital Management, LLC added | 2,044,768 | $23M | 4.9% | 2026-Q1 |
| AQR Arbitrage LLC added | 2,038,988 | $23M | 4.9% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC added | 1,988,459 | $22M | 4.7% | 2026-Q1 |
| Fort Baker Capital Management LP | 1,879,630 | $21M | 4.5% | 2026-Q1 |
| Karpus Management, Inc. trimmed | 1,662,443 | $19M | 4.0% | 2026-Q1 |
| Crossingbridge Advisors, LLC added | 1,611,550 | $18M | 3.8% | 2026-Q1 |
| ARISTEIA CAPITAL, L.L.C. | 1,500,623 | $17M | 3.6% | 2026-Q1 |
| First Trust Capital Management L.P. trimmed | 1,304,626 | $15M | 3.1% | 2026-Q1 |
| Alberta Investment Management Corp | 1,200,000 | $14M | 2.9% | 2026-Q1 |
| GLAZER CAPITAL, LLC trimmed | 1,198,458 | $14M | 2.9% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 1,178,327 | $13M | 2.8% | 2026-Q1 |
| J. Goldman & Co LP | 700,000 | $8M | 1.7% | 2026-Q1 |
| Boussard & Gavaudan Investment Management LLP | 672,000 | $8M | 1.6% | 2026-Q1 |
| Ghisallo Capital Management LLC | 600,000 | $7M | 1.4% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC new | 558,600 | $6M | 1.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 558,600 | $6M | 1.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC | 520,883 | $6M | 1.2% | 2026-Q1 |
| Logan Stone Capital, LLC | 500,955 | $6M | 1.2% | 2026-Q1 |
| Polar Asset Management Partners Inc. | 500,000 | $6M | 1.2% | 2026-Q1 |
| Mercuria Capital Strategies, LLC | 500,000 | $6M | 1.2% | 2026-Q1 |
| Lineage Point Capital LP trimmed | 494,070 | $6M | 1.2% | 2026-Q1 |
| RiverPark Advisors, LLC added | 436,550 | $5M | 1.0% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 404,238 | $5M | 1.0% | 2026-Q1 |
| O'Connor Alternative Investments LLC new | 384,160 | $4M | 0.9% | 2026-Q1 |
| Periscope Capital Inc. trimmed | 300,000 | $3M | 0.7% | 2026-Q1 |
| RLH Capital LLC new | 294,688 | $3M | 0.7% | 2026-Q1 |
| METEORA CAPITAL, LLC trimmed | 290,903 | $3M | 0.7% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP | 250,000 | $3M | 0.6% | 2026-Q1 |
| D. E. Shaw & Co., Inc. | 250,000 | $3M | 0.6% | 2026-Q1 |
| Shaolin Capital Management LLC added | 200,000 | $2M | 0.5% | 2026-Q1 |
| Quarry LP trimmed | 194,688 | $2M | 0.5% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 149,018 | $2M | 0.4% | 2026-Q1 |
| DLD Asset Management, LP | 100,012 | $1M | 0.2% | 2026-Q1 |
| SONA ASSET MANAGEMENT (US) LLC new | 100,000 | $1M | 0.2% | 2026-Q1 |
| Centiva Capital, LP trimmed | 100,000 | $1M | 0.2% | 2026-Q1 |
| CITIGROUP INC | 75,000 | $846K | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 71,494 | $806K | 0.2% | 2026-Q1 |
| GABELLI FUNDS LLC | 50,100 | $566K | 0.1% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 49,900 | $563K | 0.1% | 2026-Q1 |
| Dakota Wealth Management trimmed | 34,100 | $385K | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 29,632 | $335K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC | 28,990 | $327K | 0.1% | 2026-Q1 |
| Concurrent Investment Advisors, LLC | 12,800 | $145K | 0.0% | 2026-Q1 |
| Clear Street Group Inc. added | 7,796 | $88K | 0.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 59 | $666 | 0.0% | 2026-Q1 |
| Schechter Investment Advisors, LLC trimmed | 2,737,130 | $29M | 6.2% | 2025-Q1 stale |
| MIZUHO SECURITIES USA LLC added | 1,408,939 | $15M | 3.1% | 2025-Q1 stale |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1,000,000 | $11M | 2.3% | 2025-Q3 stale |
| Wealthspring Capital LLC trimmed | 970,649 | $11M | 2.2% | 2025-Q3 stale |
| PICTON MAHONEY ASSET MANAGEMENT | 700,000 | $8M | 1.6% | 2025-Q3 stale |
| DEUTSCHE BANK AG\ | 540,000 | $6M | 1.2% | 2025-Q1 stale |
| Linden Advisors LP | 500,000 | $5M | 1.2% | 2025-Q3 stale |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 400,000 | $4M | 0.9% | 2025-Q3 stale |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) new | 384,160 | $4M | 0.9% | 2025-Q4 stale |
| MILLENNIUM MANAGEMENT LLC | 300,000 | $3M | 0.7% | 2025-Q3 stale |
| Hudson Bay Capital Management LP | 200,000 | $2M | 0.5% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 200,000 | $2M | 0.5% | 2025-Q3 stale |
| Alpine Global Management, LLC trimmed | 174,944 | $2M | 0.4% | 2025-Q2 stale |
| BCK Capital Management LP added | 103,312 | $1M | 0.2% | 2025-Q3 stale |
| BLUEFIN CAPITAL MANAGEMENT, LLC | 100,000 | $1M | 0.2% | 2025-Q2 stale |
| ADAR1 Capital Management, LLC | 27,062 | $296K | 0.1% | 2025-Q3 stale |
| CANTOR FITZGERALD, L. P. | 25,146 | $268K | 0.1% | 2025-Q1 stale |
| CreativeOne Wealth, LLC new | 20,240 | $221K | 0.0% | 2025-Q3 stale |
| HEIGHTS CAPITAL MANAGEMENT, INC trimmed | 14,231 | $155K | 0.0% | 2025-Q3 stale |
| CITADEL ADVISORS LLC trimmed | 13,469 | $147K | 0.0% | 2025-Q3 stale |
| Evercore Wealth Management, LLC | 12,689 | $135K | 0.0% | 2025-Q1 stale |
| CONDOR CAPITAL MANAGEMENT | 12,054 | $129K | 0.0% | 2025-Q1 stale |
| ROBINSON CAPITAL MANAGEMENT, LLC trimmed | 12,000 | $128K | 0.0% | 2025-Q1 stale |
| CLEAR STREET LLC added | 5,009 | $54K | 0.0% | 2025-Q2 stale |
| UBS Group AG added | 163 | $2K | 0.0% | 2025-Q2 stale |
| SBI Securities Co., Ltd. | 8 | $90 | 0.0% | 2025-Q4 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.