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Institutional Ownership · SEC Form 13F

Who owns Tenax Therapeutics (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-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.

111
Institutional holders
30M
Shares held (tracked funds)

How the tape is positioned

46 tracked funds added or opened TENX while 25 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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

TENX’s largest tracked holder by dollar value, FMR LLC, 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 2026-Q1 and 2026-Q2, across 111 tracked filers holding TENX, 85 increased or opened the position and 27 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 2026-Q1 and 2026-Q2 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 18

  • Candriam S.C.A.$11M
  • BRAIDWELL LP$9M
  • Jupiter Topco LLC$7M
  • Bank of New York Mellon Corp$5M
  • Caption Management, LLC$4M
  • Ensign Peak Advisors, Inc$3M

Full exits 10

  • JANUS HENDERSON GROUP PLC$29M
  • Venrock Adviser, LLC$27M
  • ARMISTICE CAPITAL, LLC$8M
  • GREAT POINT PARTNERS LLC$5M
  • AMERIPRISE FINANCIAL INC$4M
  • BOONE CAPITAL MANAGEMENT LLC$3M

Largest adds

  • FMR LLC$52M
  • Vivo Capital, LLC$33M
  • BlackRock, Inc.$25M
  • VANGUARD CAPITAL MANAGEMENT LLC$12M
  • GEODE CAPITAL MANAGEMENT, LLC$8M
  • CITADEL ADVISORS LLC$8M

Largest trims

  • PRICE T ROWE ASSOCIATES INC /MD/$38M
  • Stonepine Capital Management, LLC$6M
  • Logos Global Management LP$6M
  • TD Asset Management Inc$5M
  • Ikarian Capital, LLC$5M
  • UBS Group AG$5M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
FMR LLC added3,942,373$57M13.0%2026-Q2
Vivo Capital, LLC added2,500,000$36M8.2%2026-Q2
BlackRock, Inc. added1,727,988$25M5.7%2026-Q2
PERCEPTIVE ADVISORS LLC added1,700,000$25M5.6%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC added1,147,121$17M3.8%2026-Q2
MILLENNIUM MANAGEMENT LLC added876,230$13M2.9%2026-Q2
Ikarian Capital, LLC trimmed787,600$11M2.6%2026-Q2
Candriam S.C.A. new749,588$11M2.5%2026-Q2
CITADEL ADVISORS LLC added728,561$11M2.4%2026-Q2
RTW INVESTMENTS, LP added696,570$10M2.3%2026-Q2
Stonepine Capital Management, LLC trimmed660,000$10M2.2%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added639,537$9M2.1%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ trimmed607,660$9M2.0%2026-Q2
MARSHALL WACE, LLP added585,578$9M1.9%2026-Q2
BRAIDWELL LP new584,412$9M1.9%2026-Q2
Point72 Asset Management, L.P. added556,761$8M1.8%2026-Q2
Velan Capital Investment Management LP trimmed549,985$8M1.8%2026-Q2
ADAGE CAPITAL PARTNERS GP, L.L.C.540,126$8M1.8%2026-Q2
Woodline Partners LP added531,254$8M1.8%2026-Q2
STATE STREET CORP added510,814$7M1.7%2026-Q2
Sofinnova Investments, Inc. added500,039$7M1.6%2026-Q2
Jupiter Topco LLC new451,226$7M1.5%2026-Q2
MORGAN STANLEY trimmed432,220$6M1.4%2026-Q2
Qube Research & Technologies Ltd added429,893$6M1.4%2026-Q2
Siren, L.L.C.427,141$6M1.4%2026-Q2
TWO SIGMA INVESTMENTS, LP added353,390$5M1.2%2026-Q2
BVF INC/IL339,549$5M1.1%2026-Q2
Bank of New York Mellon Corp new325,296$5M1.1%2026-Q2
Trexquant Investment LP added321,604$5M1.1%2026-Q2
BOOTHBAY FUND MANAGEMENT, LLC trimmed311,087$5M1.0%2026-Q2
Logos Global Management LP trimmed300,000$4M1.0%2026-Q2
SUSQUEHANNA INTERNATIONAL GROUP, LLP added289,164$4M1.0%2026-Q2
GOLDMAN SACHS GROUP INC added274,946$4M0.9%2026-Q2
JANE STREET GROUP, LLC added266,656$4M0.9%2026-Q2
Avidity Partners Management LP added265,934$4M0.9%2026-Q2
Caption Management, LLC new255,000$4M0.8%2026-Q2
DIMENSIONAL FUND ADVISORS LP added253,518$4M0.8%2026-Q2
ADAR1 Capital Management, LLC added220,462$3M0.7%2026-Q2
NORTHERN TRUST CORP added199,134$3M0.7%2026-Q2
ExodusPoint Capital Management, LP added184,501$3M0.6%2026-Q2
Ensign Peak Advisors, Inc new176,889$3M0.6%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC new168,841$2M0.6%2026-Q2
Integral Health Asset Management, LLC167,000$2M0.6%2026-Q2
RENAISSANCE TECHNOLOGIES LLC added164,000$2M0.5%2026-Q2
Nuveen, LLC new161,187$2M0.5%2026-Q2
VANGUARD FIDUCIARY TRUST CO added157,042$2M0.5%2026-Q2
PANAGORA ASSET MANAGEMENT INC new156,062$2M0.5%2026-Q2
BANK OF AMERICA CORP /DE/ added136,428$2M0.4%2026-Q2
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. new132,272$2M0.4%2026-Q2
Verdad Advisers, LP added123,174$2M0.4%2026-Q2
SPHERA FUNDS MANAGEMENT LTD. trimmed120,200$2M0.4%2026-Q2
RAYMOND JAMES FINANCIAL INC added117,482$2M0.4%2026-Q2
XTX Topco Ltd added113,767$2M0.4%2026-Q2
Walleye Capital LLC new105,237$2M0.3%2026-Q2
UBS Group AG trimmed98,143$1M0.3%2026-Q2
STEMPOINT CAPITAL LP trimmed96,273$1M0.3%2026-Q2
WELLINGTON MANAGEMENT GROUP LLP new95,513$1M0.3%2026-Q2
Creek Drive Management Group LLC added74,000$1M0.2%2026-Q2
TD Asset Management Inc trimmed73,146$1M0.2%2026-Q2
FRED ALGER MANAGEMENT, LLC new71,967$1M0.2%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC new61,174$890K0.2%2026-Q2
BRIDGEWAY CAPITAL MANAGEMENT, LLC added59,900$872K0.2%2026-Q2
Vestal Point Capital, LP53,439$778K0.2%2026-Q2
Man Group plc new49,044$714K0.2%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added47,835$696K0.2%2026-Q2
MANUFACTURERS LIFE INSURANCE COMPANY, THE added47,249$687K0.2%2026-Q2
Artia Global Partners LP42,080$612K0.1%2026-Q2
Quinn Opportunity Partners LLC new40,000$582K0.1%2026-Q2
FRANKLIN RESOURCES INC new35,267$513K0.1%2026-Q2
Squarepoint Ops LLC new33,334$485K0.1%2026-Q2
RHUMBLINE ADVISERS new31,291$455K0.1%2026-Q2
ALPS ADVISORS INC new26,924$392K0.1%2026-Q2
DEUTSCHE BANK AG\ new24,557$357K0.1%2026-Q2
WELLS FARGO & COMPANY/MN new21,084$307K0.1%2026-Q2
SummitTX Capital, L.P. new19,993$291K0.1%2026-Q2
ALLIANCEBERNSTEIN L.P. new19,900$290K0.1%2026-Q2
MetLife Investment Management, LLC new14,940$217K0.0%2026-Q2
Verition Fund Management LLC13,589$198K0.0%2026-Q2
Invesco Ltd. new13,096$191K0.0%2026-Q2
Corient Private Wealth LP12,388$180K0.0%2026-Q2
Vanguard Global Advisers, LLC added12,110$176K0.0%2026-Q2
CITIGROUP INC added11,623$169K0.0%2026-Q2
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. new11,544$168K0.0%2026-Q2
Quantbot Technologies LP new10,735$156K0.0%2026-Q2
LETKO, BROSSEAU & ASSOCIATES INC10,650$155K0.0%2026-Q2
JPMORGAN CHASE & CO added10,511$142K0.0%2026-Q2
SEI INVESTMENTS CO new10,110$147K0.0%2026-Q2
DIVERSIFIED TRUST CO new10,022$146K0.0%2026-Q2
K2 PRINCIPAL FUND, L.P. new10,000$146K0.0%2026-Q2
NEW YORK STATE COMMON RETIREMENT FUND new8,800$128K0.0%2026-Q2
BARCLAYS PLC trimmed8,054$117K0.0%2026-Q2
Police & Firemen's Retirement System of New Jersey new7,425$108K0.0%2026-Q2
STRS OHIO new4,900$71K0.0%2026-Q2
China Universal Asset Management Co., Ltd. new3,600$52K0.0%2026-Q2
Legal & General Group Plc new2,442$36K0.0%2026-Q2
Tower Research Capital LLC (TRC) added2,308$34K0.0%2026-Q2
Ameritas Investment Partners, Inc. new2,285$33K0.0%2026-Q2
Russell Investments Group, Ltd. new2,051$30K0.0%2026-Q2
ROYAL BANK OF CANADA added776$11K0.0%2026-Q2
Sterling Capital Management LLC new507$7K0.0%2026-Q2

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.

HoldersTotal shares

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.

Learn how to read institutional ownership