Janus Henderson Group
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Janus Henderson Group’s Ardelyx ARDX Stock Holding History

Janus Henderson Group’s Portfolio ARDX Stock Details ARDX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$50.1M Sell
8,371,234
-6,143,458
-42% -$40.6M 0.02% 411
2025
Q4 		$84.6M Buy
14,514,692
+690,599
+5% +$3.85M 0.04% 319
2025
Q3 		$76.1M Sell
13,824,093
-1,233,847
-8% -$6.7M 0.03% 326
2025
Q2 		$59.1M Sell
15,057,940
-9,919,066
-40% -$40.9M 0.03% 358
2025
Q1 		$123M Buy
24,977,006
+589,065
+2% +$3.16M 0.07% 235
2024
Q4 		$124M Buy
24,387,941
+2,858,061
+13% +$15.8M 0.06% 251
2024
Q3 		$148M Sell
21,529,880
-4,419,443
-17% -$26.1M 0.08% 223
2024
Q2 		$192M Buy
25,949,323
+3,901,317
+18% +$27.4M 0.1% 174
2024
Q1 		$161M Sell
22,048,006
-2,610,814
-11% -$22.3M 0.09% 205
2023
Q4 		$153M Sell
24,658,820
-2,623,801
-10% -$11.8M 0.09% 209
2023
Q3 		$111M Buy
27,282,621
+5,455,941
+25% +$21.3M 0.07% 234
2023
Q2 		$73.9M Sell
21,826,680
-284,921
-1% -$1.17M 0.05% 309
2023
Q1 		$106M Buy
22,111,601
+2,337,268
+12% +$7.88M 0.07% 238
2022
Q4 		$56.1M Buy
19,774,333
+11,520,955
+140% +$19.5M 0.04% 349
2022
Q3 		$9.86M Buy
+8,253,378
New +$7.85M 0.01% 680
2021
Q3 		– Sell
-582,867
Closed -$4.42M – 2194
2021
Q2 		$4.42M Buy
582,867
+40,616
+7% +$300K ﹤0.01% 1085
2021
Q1 		$3.59M Buy
542,251
+204,918
+61% +$1.41M ﹤0.01% 1073
2020
Q4 		$2.18M Buy
+337,333
New +$2M ﹤0.01% 1108

Other funds holding ARDX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Janus Henderson Group's ARDX Position: Q1 2026 in Review

Janus Henderson Group reduced its Ardelyx (ARDX) stake by 42% in Q1 2026, selling an estimated $40.6M and leaving 8,371,234 shares worth $50.1M. The position accounts for 0.02% of the portfolio, ranked #411.

Janus Henderson Group first reported a position in ARDX in Q4 2020 and has held it in 18 quarters since. The position peaked at $192M in Q2 2024. 242 funds tracked by Wall St. Rank hold ARDX as of Q1 2026.

  • Janus Henderson Group held 8,371,234 shares of Ardelyx worth $50.1M as of Q1 2026.
  • Janus Henderson Group sold 6,143,458 Ardelyx shares in Q1 2026, an estimated $40.6M.
  • Ardelyx made up 0.02% of Janus Henderson Group's portfolio in Q1 2026, its #411 holding.
  • Janus Henderson Group first reported a position in Ardelyx in Q4 2020 and has held it in 18 quarters since.
  • Janus Henderson Group's Ardelyx position peaked at $192M in Q2 2024.
  • 242 funds tracked by Wall St. Rank held Ardelyx as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.