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Security record · archived quarter

ARDX

Ardelyx, Inc. · Healthcare · Biotechnology

3.78 +1.1% mkt cap $933.77M quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
9Tracked holders
Δ holders
13.39MShares held
$99.20MReported value
+0New positions
−0Exits
How these are computed → Explain this at the Research Desk →

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 97 0 123.14M $629.29M +7 −7
Q1 2026 100 +3 138.17M $826.25M +6 −3
Q4 2025 95 +1 146.57M $854.46M +1
Q3 2025 18 +1 90.83M $500.46M +1
Q2 2025 14 -2 85.87M $336.62M −2
Q1 2025 13 +1 41.26M $202.59M +2 −1
Q4 2024 12 +2 28.08M $142.38M +3 −1
Q3 2024 9 0 14.54M $100.22M
Q2 2024 9 13.39M $99.20M
Holder count
Who holds it · Q2 2024
#ManagerSharesΔ sharesValueTheir weightHeld
1 Geode Capital Management (passive) 5.47M $40.54M 0.0% n/c 1 SEC ↗
2 Geode Capital Management (passive) 5.47M $40.54M 0.0% n/c 1 SEC ↗
3 Millennium Management 3.20M $23.73M 0.0% n/c 1 SEC ↗
4 Two Sigma Investments 2.01M $14.89M 0.0% n/c 1 SEC ↗
5 T. Rowe Price 1.72M $12.74M 0.0% n/c 1 SEC ↗
6 T. Rowe Price 1.72M $12.74M 0.0% n/c 1 SEC ↗
7 AQR Capital Management 416.35K $3.09M 0.0% n/c 1 SEC ↗
8 AQR Capital Management 416.35K $3.09M 0.0% n/c 1 SEC ↗
9 AQR Capital Management 416.35K $3.09M 0.0% n/c 1 SEC ↗
10 Citadel Advisors 260.63K $1.93M 0.0% n/c 1 SEC ↗
11 Gotham Asset Management 174.50K $1.29M 0.0% n/c 1 SEC ↗
12 Wellington Management 121.60K $901,049 0.0% n/c 1 SEC ↗
13 Wellington Management 121.60K $901,049 0.0% n/c 1 SEC ↗
14 Wellington Management 121.60K $901,049 0.0% n/c 1 SEC ↗
15 Wellington Management 121.60K $901,049 0.0% n/c 1 SEC ↗
16 D. E. Shaw & Co. 10.72K $79,413 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

No new tracked buyers this quarter.

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 235 holders, 168.96M shares, $997.54M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 21 RAAB MICHAEL

Officer, Director · 15.01K sh · $57,888

Aug 21 RAAB MICHAEL

Officer, Director · 15.98K sh · $61,618

Aug 21 RAAB MICHAEL

Officer, Director · 8.41K sh · $32,440

Aug 21 RAAB MICHAEL

Officer, Director · 19.18K sh · $73,968

Aug 21 Hohenleitner Susan

Officer · 1.56K sh · $6,009

Aug 21 Williams Laura A

Officer · 3.49K sh · $13,445

Aug 21 Williams Laura A

Officer · 3.09K sh · $11,914

Aug 21 Williams Laura A

Officer · 2.43K sh · $9,372

Aug 21 Williams Laura A

Officer · 1.73K sh · $6,688

Aug 21 Kelliher Mike

Officer · 3.10K sh · $11,972

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 14 SC 13G — Rubric Capital Management LP

View original SEC filing ↗

Aug 11 SC 13G/A — INTEGRATED CORE STRATEGIES (US) LLC

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2024 · Methodology · Get this via the API