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ARDX · Ardelyx, Inc.

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$3.78 +0.07 (+1.89%) At close · Sep 4
Market Cap
$933.21M
Shares
249.19M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 252
Total Value: $916,642,539
Total Shares: 179,833,848
Showing 1–100 of 262 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 252 13F filers · Δ vs Mar 31, 2026
Top Holder
13.1%
Sep 2023 → Jun 2026 · range 12.2% – 21.2%
+0.8 pts
Top 5
43.3%
Sep 2023 → Jun 2026 · range 41.7% – 56.2%
+1.6 pts
Top 10
62.5%
Sep 2023 → Jun 2026 · range 59.3% – 69.6%
+3.1 pts
HHI
516
Sep 2023 → Jun 2026 · range 490 – 829
Broadly held+26

Quarterly Activity

vs Mar 31, 2026
New
44
Increased
88
Decreased
88
Sold Out
35
Unchanged
32
Holder count: +9
Institutional value: -10.9%
Shares held: +4.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 262
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1437402 CUSIP 039697107 13F (30d) 183 filings 180 filers Visit website Investor relations