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Rubric Capital Management (New York)’s Ardelyx ARDX Stock Holding History

Rubric Capital Management (New York)’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
Q2 		$82.6M Buy
16,202,700
+14,341,804
+771% +$87.5M 0.76% 36
2026
Q1 		$11.1M Buy
+1,860,896
New +$12.3M 0.12% 72
2025
Q1 		– Sell
-1,706,485
Closed -$8.65M – 66
2024
Q4 		$8.65M Sell
1,706,485
-1,353,706
-44% -$7.48M 0.11% 57
2024
Q3 		$21.1M Buy
3,060,191
+1,243,606
+68% +$7.34M 0.34% 47
2024
Q2 		$13.5M Hold
1,816,585
– – 0.35% 52
2024
Q1 		$13.3M Sell
1,816,585
-2,196,168
-55% -$18.8M 0.39% 53
2023
Q4 		$24.9M Buy
4,012,753
+1,512,753
+61% +$6.79M 0.52% 35
2023
Q3 		$10.2M Buy
+2,500,000
New +$9.75M 0.38% 51

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
JT
Jupiter Topco New York $245B AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Rubric Capital Management (New York)'s ARDX Position: Q2 2026 in Review

Rubric Capital Management (New York) increased its Ardelyx (ARDX) stake by 771% in Q2 2026, buying an estimated $87.5M and bringing the position to 16,202,700 shares worth $82.6M. The position accounts for 0.76% of the portfolio, ranked #36.

Rubric Capital Management (New York) first reported a position in ARDX in Q3 2023 and has held it in 8 quarters since. 250 funds tracked by Wall St. Rank hold ARDX as of Q2 2026.

  • Rubric Capital Management (New York) held 16,202,700 shares of Ardelyx worth $82.6M as of Q2 2026.
  • Rubric Capital Management (New York) bought 14,341,804 Ardelyx shares in Q2 2026, an estimated $87.5M.
  • Ardelyx made up 0.76% of Rubric Capital Management (New York)'s portfolio in Q2 2026, its #36 holding.
  • Rubric Capital Management (New York) first reported a position in Ardelyx in Q3 2023 and has held it in 8 quarters since.
  • 250 funds tracked by Wall St. Rank held Ardelyx as of Q2 2026.

Based on Rubric Capital Management (New York)'s 13F filing for Q2 2026, filed 14 Aug 2026.