13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Pharmaceutical PreparationsCyclicalNet sold
ARDX

ARDELYX INC

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

CUSIP 039697107·Pharmaceutical Preparations·247 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.8%
vs prior quarter
13F value held
$779M
77.0% inst. owned
of float
Holders
247
+137 QoQ
filers reporting
Activity
+73 / −104
+1,014 added · −819 reduced
this quarter
Concentration
16.28%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

247 institutions reported ARDX in Q1 2026. BlackRock, Inc. leads at 16.3% of the visible book. +137 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$127M21.2M0.00%Q1 202602
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$108M18.0M0.04%Q1 202603
STATE STREET CORP
CIK 0000093751
$81M13.6M0.00%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$62M10.4M0.00%Q1 202605
JANUS HENDERSON GROUP PLC
CIK 0001274173
$50M8.4M0.02%Q1 202606
Delaware Management Holdings, Inc.
CIK 0000921739
$49M8.2M0.08%Q1 202607
Vanguard Portfolio Management
CIK 0002100121
$40M6.7M0.00%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$36M6.0M0.00%Q1 202609
Nuveen, LLC
CIK 0001871926
$31M5.2M0.01%Q1 202610
MARSHALL WACE, LLP
CIK 0001318757
$30M5.2M0.03%Q4 202511
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$26M4.3M0.02%Q1 202612
GOLDMAN SACHS GROUP INC
CIK 0000886982
$19M3.2M0.00%Q1 202613
J. Goldman & Co LP
CIK 0001412741
$18M3.0M0.52%Q1 202614
Point72 Asset Management, L.P.
CIK 0001603466
$18M3.0M0.02%Q1 202615
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$15M2.4M0.01%Q1 202616
Qube Research & Technologies Ltd
CIK 0001729829
$15M2.4M0.02%Q1 202617
BANK OF AMERICA CORP /DE/
CIK 0000070858
$14M2.3M0.00%Q1 202618
Rock Springs Capital Management LP
CIK 0001595725
$14M2.3M0.81%Q1 202619
Eversept Partners, LP
CIK 0001697013
$13M2.2M0.70%Q1 202620
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$13M2.1M0.00%Q1 2026
Page 1 of 13
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