Who owns TENX (TENX)
Which tracked institutional funds hold TENX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TENX 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
The tracked-fund tape on TENX is one-sided between 2025-Q4 and 2026-Q1: 49 added or opened and 1 trimmed or exited — on balance accumulating.
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
TENX’s largest tracked holder by dollar value, PRICE T ROWE ASSOCIATES INC /MD/, 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 TENX 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 80 tracked filers holding TENX, 60 increased or opened the position and 7 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 TENX 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 23
- PRICE T ROWE ASSOCIATES INC /MD/$47M
- Venrock Adviser, LLC$27M
- Logos Global Management LP$10M
- ARMISTICE CAPITAL, LLC$8M
- TD Asset Management Inc$6M
- GREAT POINT PARTNERS LLC$5M
Full exits 1
- VANGUARD GROUP INC$3M
Largest adds
- JANUS HENDERSON GROUP PLC$27M
- PERCEPTIVE ADVISORS LLC$18M
- Stonepine Capital Management, LLC$15M
- Velan Capital Investment Management LP$8M
- ADAGE CAPITAL PARTNERS GP, L.L.C.$8M
- UBS Group AG$6M
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 |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ added | 2,951,116 | $47M | 13.8% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 1,815,474 | $29M | 8.5% | 2026-Q1 |
| Venrock Adviser, LLC added | 1,675,262 | $27M | 7.8% | 2026-Q1 |
| PERCEPTIVE ADVISORS LLC added | 1,447,782 | $23M | 6.8% | 2026-Q1 |
| Ikarian Capital, LLC added | 1,017,600 | $16M | 4.7% | 2026-Q1 |
| Stonepine Capital Management, LLC added | 975,200 | $16M | 4.5% | 2026-Q1 |
| Logos Global Management LP new | 625,000 | $10M | 2.9% | 2026-Q1 |
| MORGAN STANLEY added | 596,564 | $10M | 2.8% | 2026-Q1 |
| Velan Capital Investment Management LP added | 583,333 | $9M | 2.7% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 540,126 | $9M | 2.5% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 533,965 | $9M | 2.5% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 533,889 | $9M | 2.5% | 2026-Q1 |
| ARMISTICE CAPITAL, LLC trimmed | 478,827 | $8M | 2.2% | 2026-Q1 |
| Siren, L.L.C. | 427,141 | $7M | 2.0% | 2026-Q1 |
| TD Asset Management Inc new | 399,184 | $6M | 1.9% | 2026-Q1 |
| UBS Group AG added | 381,419 | $6M | 1.8% | 2026-Q1 |
| RTW INVESTMENTS, LP trimmed | 370,246 | $6M | 1.7% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 366,791 | $6M | 1.7% | 2026-Q1 |
| MARSHALL WACE, LLP added | 351,454 | $6M | 1.6% | 2026-Q1 |
| BVF INC/IL | 339,549 | $5M | 1.6% | 2026-Q1 |
| GREAT POINT PARTNERS LLC new | 327,307 | $5M | 1.5% | 2026-Q1 |
| Woodline Partners LP added | 323,911 | $5M | 1.5% | 2026-Q1 |
| FMR LLC added | 322,600 | $5M | 1.5% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 279,537 | $4M | 1.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 263,421 | $4M | 1.2% | 2026-Q1 |
| Avidity Partners Management LP new | 265,934 | $3M | 1.0% | 2026-Q1 |
| ADAR1 Capital Management, LLC added | 213,462 | $3M | 1.0% | 2026-Q1 |
| Vivo Capital, LLC | 208,333 | $3M | 1.0% | 2026-Q1 |
| BOONE CAPITAL MANAGEMENT LLC new | 200,000 | $3M | 0.9% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 194,616 | $3M | 0.9% | 2026-Q1 |
| STEMPOINT CAPITAL LP new | 188,700 | $3M | 0.9% | 2026-Q1 |
| DIADEMA PARTNERS LP trimmed | 179,738 | $3M | 0.8% | 2026-Q1 |
| Integral Health Asset Management, LLC | 167,000 | $3M | 0.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 152,600 | $2M | 0.7% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 152,516 | $2M | 0.7% | 2026-Q1 |
| SPHERA FUNDS MANAGEMENT LTD. trimmed | 136,015 | $2M | 0.6% | 2026-Q1 |
| ExodusPoint Capital Management, LP new | 120,529 | $2M | 0.6% | 2026-Q1 |
| Sofinnova Investments, Inc. new | 104,400 | $2M | 0.5% | 2026-Q1 |
| Verdad Advisers, LP new | 95,330 | $2M | 0.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 69,160 | $1M | 0.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 68,588 | $1M | 0.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 62,786 | $1M | 0.3% | 2026-Q1 |
| Persistent Asset Partners Ltd trimmed | 58,182 | $930K | 0.3% | 2026-Q1 |
| Vestal Point Capital, LP | 53,439 | $854K | 0.2% | 2026-Q1 |
| Trexquant Investment LP new | 50,712 | $811K | 0.2% | 2026-Q1 |
| XTX Topco Ltd added | 47,851 | $765K | 0.2% | 2026-Q1 |
| Creek Drive Management Group LLC new | 45,000 | $720K | 0.2% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 44,900 | $718K | 0.2% | 2026-Q1 |
| Artia Global Partners LP | 42,080 | $673K | 0.2% | 2026-Q1 |
| HRT FINANCIAL LP added | 41,819 | $668K | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 33,628 | $538K | 0.2% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 33,430 | $535K | 0.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 31,854 | $509K | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE new | 31,336 | $501K | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 30,647 | $490K | 0.1% | 2026-Q1 |
| STATE STREET CORP trimmed | 28,990 | $464K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 28,977 | $463K | 0.1% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 28,285 | $452K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 18,569 | $297K | 0.1% | 2026-Q1 |
| BlackRock, Inc. added | 16,977 | $271K | 0.1% | 2026-Q1 |
| BARCLAYS PLC added | 16,698 | $267K | 0.1% | 2026-Q1 |
| Quadrature Capital Ltd trimmed | 15,472 | $247K | 0.1% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 13,589 | $217K | 0.1% | 2026-Q1 |
| Corient Private Wealth LLC | 12,388 | $198K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 12,049 | $193K | 0.1% | 2026-Q1 |
| LETKO, BROSSEAU & ASSOCIATES INC | 10,650 | $170K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 9,418 | $132K | 0.0% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 4,502 | $71K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 3,299 | $53K | 0.0% | 2026-Q1 |
| Rockefeller Capital Management L.P. added | 2,501 | $40K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) added | 1,100 | $18K | 0.0% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd new | 57 | $911 | 0.0% | 2026-Q1 |
| MAI Capital Management new | 1 | $16 | 0.0% | 2026-Q1 |
| Physician Wealth Advisors, Inc. | 1 | $16 | 0.0% | 2026-Q1 |
| Titiun Yejiel | 1 | $16 | 0.0% | 2026-Q1 |
| Allworth Financial LP | 1 | $16 | 0.0% | 2026-Q1 |
| CITIGROUP INC | 1 | $16 | 0.0% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP | 1 | $15 | 0.0% | 2026-Q1 |
| Union Bancaire Privee, UBP SA | 1 | $11 | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 4 | — | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC added | 255,664 | $3M | 0.9% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 13,178 | $161K | 0.0% | 2025-Q4 stale |
| Virtu Financial LLC trimmed | 12,119 | $92K | 0.0% | 2025-Q3 stale |
| DRW Securities, LLC new | 10,514 | $80K | 0.0% | 2025-Q3 stale |
| RAYMOND JAMES FINANCIAL INC new | 1,503 | $9K | 0.0% | 2025-Q2 stale |
| SBI Securities Co., Ltd. trimmed | 2 | $15 | 0.0% | 2025-Q3 stale |
| Wealthspire Advisors, LLC new | 1 | $8 | 0.0% | 2025-Q3 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.