Who owns Aditxt (ADTX)
Which tracked institutional funds hold ADTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ADTX company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-19). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
ADTX’s largest tracked holder by dollar value, SUSQUEHANNA INTERNATIONAL GROUP, LLP, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ADTX 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 10 tracked filers holding ADTX, 4 increased or opened the position and 8 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 |
|---|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 11,721 | $11K | 12.9% | 2026-Q1 |
| MORGAN STANLEY added | 8,002 | $8K | 8.8% | 2026-Q1 |
| Tower Research Capital LLC (TRC) trimmed | 547 | $535 | 0.6% | 2026-Q1 |
| DANSKE BANK A/S added | 3 | $3 | 0.0% | 2026-Q1 |
| GROUP ONE TRADING LLC | 2 | $2 | 0.0% | 2026-Q1 |
| Western Wealth Management, LLC new | 1 | $1 | 0.0% | 2026-Q1 |
| UBS Group AG trimmed | 1 | $1 | 0.0% | 2026-Q1 |
| IFP Advisors, Inc | 1 | — | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| Darwin Wealth Management, LLC | 1 | — | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. | 2 | — | 0.0% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 16,079 | $13K | 15.1% | 2025-Q4 stale (1 quarter behind) |
| HRT FINANCIAL LP added | 15,904 | $13K | 14.7% | 2025-Q4 stale (1 quarter behind) |
| Virtu Financial LLC trimmed | 16,225 | $12K | 13.5% | 2025-Q3 stale (2 quarters behind) |
| JANE STREET GROUP, LLC trimmed | 12,844 | $11K | 12.1% | 2025-Q4 stale (1 quarter behind) |
| FLOW TRADERS U.S. LLC new | 12,453 | $10K | 11.3% | 2025-Q4 stale (1 quarter behind) |
| TWO SIGMA SECURITIES, LLC new | 10,982 | $8K | 9.3% | 2025-Q3 stale (2 quarters behind) |
| CITIGROUP INC new | 1,645 | $1K | 1.4% | 2025-Q3 stale (2 quarters behind) |
| RAYMOND JAMES FINANCIAL INC new | 89 | $114 | 0.1% | 2025-Q2 stale (3 quarters behind) |
| SBI Securities Co., Ltd. trimmed | 87 | $65 | 0.1% | 2025-Q3 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 5 | $4 | 0.0% | 2025-Q4 stale (1 quarter behind) |
| FMR LLC new | 1 | $1 | 0.0% | 2025-Q4 stale (1 quarter behind) |
| TD Waterhouse Canada Inc. new | 1 | $1 | 0.0% | 2025-Q3 stale (2 quarters behind) |
| JONES FINANCIAL COMPANIES LLLP | 1 | $1 | 0.0% | 2025-Q2 stale (3 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (3 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.