Who owns bioAffinity Technologies (BIAF)
Which tracked institutional funds hold BIAF, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BIAF 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.
Conviction spread
BIAF’s largest tracked holder by dollar value, SABBY MANAGEMENT, LLC, sizes it at 2.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 2.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BIAF 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 17 tracked filers holding BIAF, 9 increased or opened the position and 6 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
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 |
|---|---|---|---|---|
| SABBY MANAGEMENT, LLC added | 365,647 | $297K | 32.2% | 2026-Q2 |
| J. Safra Sarasin Holding AG | 42,600 | $164K | 17.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC | 55,543 | $45K | 4.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 50,967 | $41K | 4.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO | 31,071 | $25K | 2.7% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 26,870 | $22K | 2.4% | 2026-Q2 |
| JANE STREET GROUP, LLC new | 26,784 | $22K | 2.4% | 2026-Q2 |
| STATE STREET CORP added | 24,086 | $20K | 2.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 16,748 | $14K | 1.5% | 2026-Q2 |
| Allworth Financial LP added | 10,000 | $8K | 0.9% | 2026-Q2 |
| Clear Street Group Inc. | 54,927 | $8K | 0.8% | 2026-Q2 |
| UBS Group AG added | 46,445 | $7K | 0.7% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 6,482 | $5K | 0.6% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 17,162 | $2K | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA new | 931 | $1K | 0.1% | 2026-Q2 |
| IFP Advisors, Inc | 833 | $676 | 0.1% | 2026-Q2 |
| MORGAN STANLEY | 3 | $2 | 0.0% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC new | 24,413 | $94K | 10.1% | 2026-Q1 stale (1 quarter behind) |
| Ameritas Advisory Services, LLC new | 1,000 | $4K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| CITIGROUP INC trimmed | 57 | $218 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Caitong International Asset Management Co., Ltd new | 1 | $4 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA SECURITIES, LLC trimmed | 11,125 | $13K | 1.4% | 2025-Q4 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 38 | $45 | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Scientech Research LLC new | 16,583 | $49K | 5.3% | 2025-Q3 stale (3 quarters behind) |
| VANGUARD GROUP INC trimmed | 10,429 | $31K | 3.3% | 2025-Q3 stale (3 quarters behind) |
| Larson Financial Group LLC new | 33 | $98 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| FMR LLC new | 26 | $77 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| ARMISTICE CAPITAL, LLC | 204,082 | $27K | 2.9% | 2025-Q2 stale (4 quarters behind) |
| CAPTRUST FINANCIAL ADVISORS | 27,885 | $8K | 0.9% | 2025-Q2 stale (4 quarters behind) |
| XTX Topco Ltd added | 15,598 | $4K | 0.5% | 2025-Q2 stale (4 quarters behind) |
| StoneX Group Inc. new | 15,206 | $4K | 0.5% | 2025-Q2 stale (4 quarters behind) |
| Creative Planning | 12,095 | $3K | 0.4% | 2025-Q2 stale (4 quarters behind) |
| SPROTT INC. new | 10,000 | $3K | 0.3% | 2025-Q2 stale (4 quarters behind) |
| RAYMOND JAMES FINANCIAL INC new | 500 | $144 | 0.0% | 2025-Q2 stale (4 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
1 parent filing withheld from the table above, and from the coverage figures, to avoid listing one book twice: CLEAR STREET LLC (last filed 2025-Q2, 55,122 shares) reconciles to its 1 current affiliate (54,927 shares) — 0.354% apart.
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.