DOSSIER · 13F Holders · Q1 2026
TENX

TENAX THERAPEUTICS INC

80 institutions still hold TENAX THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 88032L605·80 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$245M
visible holders
Holders
80
filers reporting
Concentration
19.25%
PRICE T ROWE ASSOCIATES INC /MD/ #1
top holder share
AI Holders Summary · Q1 2026

Tenax Therapeutics' institutional ownership was transformed almost overnight: $298.6 million in tracked institutional value across 71 holders as of the quarter ended March 31, 2026, up from a base where several of today's largest holders didn't exist a quarter earlier. T. Rowe Price Associates opened a brand-new $47.2 million position (2,951,116 shares), instantly the largest in the stock. Janus Henderson Group increased its stake nearly tenfold, from 166,666 to 1,815,474 shares (+$27.0 million), and Stonepine Capital Management grew an 11,884-share position into 975,200 shares — an 82-fold increase worth $15.4 million. Perceptive Advisors, a healthcare-focused specialist, more than tripled its holding (439,142 to 1,447,782 shares, +$17.8 million), while UBS Group grew a nominal 676-share stake to 381,419 shares. All of this activity accompanied roughly a 32% rise in TENX's share price. Against that wall of buying, selling was minimal — only two holders, Sphera Funds Management and Diadema Partners, trimmed their positions, and both cuts were modest by comparison.

Tenax Therapeutics (TENX) shows $298.6 million in tracked institutional value across 71 holders as of the quarter ended March 31, 2026 — and the composition of that book changed dramatically from the prior quarter. Nine holders in the top 20 alone are brand-new positions, and among the holders that already existed, share counts didn't just grow — several multiplied many times over. The data implies TENX's share price rose roughly 32% over the quarter (calculated from consistent per-share values embedded in the top holders' reported changes), meaning this accumulation happened while the stock was already appreciating, not as a contrarian bet into weakness.

New capital, led by a household name

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$47M3.0M0.01%Q1 2026
02
JANUS HENDERSON GROUP PLC
CIK 0001274173
$29M1.8M0.01%Q1 2026
03
PERCEPTIVE ADVISORS LLC
CIK 0001224962
$23M1.4M0.45%Q1 2026
04
Ikarian Capital, LLC
CIK 0001778253
$18M1.1M1.47%Q1 2026
05
Stonepine Capital Management, LLC
CIK 0001440771
$16M975K6.24%Q1 2026
06
Logos Global Management LP
CIK 0001792126
$10M625K0.50%Q1 2026
07
MORGAN STANLEY
CIK 0000895421
$10M597K0.00%Q1 2026
08
Velan Capital Investment Management LP
CIK 0001848809
$9M583K5.84%Q1 2026
09
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$9M540K0.01%Q1 2026
10
Point72 Asset Management, L.P.
CIK 0001603466
$9M534K0.01%Q1 2026
11
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$9M534K0.00%Q1 2026
12
ARMISTICE CAPITAL, LLC
CIK 0001601086
$8M479K0.14%Q1 2026
13
Avidity Partners Management LP
CIK 0001791827
$7M482K0.74%Q1 2026
14
Siren, L.L.C.
CIK 0002005245
$7M427K0.19%Q1 2026
15
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$6M400K0.08%Q1 2026
16
TD ASSET MANAGEMENT INC
CIK 0001056053
$6M399K0.01%Q1 2026
17
UBS Group AG
CIK 0001610520
$6M381K0.00%Q1 2026
18
STEMPOINT CAPITAL LP
CIK 0001952142
$6M377K0.58%Q1 2026
19
RTW INVESTMENTS, LP
CIK 0001493215
$6M370K0.06%Q1 2026
20
Woodline Partners LP
CIK 0001784547
$5M324K0.02%Q1 2026
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Insiders at TENAX THERAPEUTICS INC
Giordano Christopher ThomasStaab Thomas R IiDavidson Michael H.Proehl Gerald TRich StuartHunter RobynDoogan DeclanAlmenoff June Sherie