Ardelyx, Inc.
ARDX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001437402
In the last 90 days, Ardelyx, Inc. insiders filed 0 open-market purchases and 8 sales; 251 institutions reported holding it in 13F filings for Q2 2026, worth $906.4M in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 10, 2026
- $756.6M
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $486.2K in total
- 8
- 13F holdersQ2 2026, +11 vs. previous quarter
- 251
- 13F valueReported value at the end of Q2 2026
- $906.4M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $407.3M
- +22.1% year over year
- Net income, FY2025
- -$61.6M
- No comparable prior period
- Free cash flow, FY2025
- -$44.0M
- No comparable prior period
- Revenue, Q3 FY2026
- $127.7M
- +15.7% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Net loss for FY2025: $61.6M (15.1% of revenue).
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 29.2M
- Shares sold short
- Change
- −1.03M
- −3.4% vs. previous
- Days to cover
- 7.53
- At average daily volume
Superinvestors holding ARDX, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding ARDX at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Ardelyx, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 25, 2026 (view filing)7:19 PM ET | Aug 21 | 4 days | Hohenleitner SusanChief Financial Officer | SSale | −1.56K | $3.86 | −$6.01K | −0.7%227.5K after | |
| Aug 25, 2026 (view filing)7:17 PM ET | Aug 21 | 4 days | Reilly Joseph JamesSee Remarks | SSale | −3.98K | $3.86 | −$15.4K | −2.7%145.9K after | 2 lots |
| Aug 25, 2026 (view filing)7:16 PM ET | Aug 21 | 4 days | Bishop John ESee Remarks | SSale | −19.8K | $3.86 | −$76.2K | −5.9%317.1K after | 2 lots |
| Aug 25, 2026 (view filing)7:15 PM ET | Aug 21 | 4 days | Brady James ParkerChief Human Resources Officer | SSale | −15.1K | $3.86 | −$58.4K | −5.8%245.9K after | 2 lots |
| Aug 25, 2026 (view filing)7:13 PM ET | Aug 21 | 4 days | Foster Eric DuaneChief Commercial Officer | SSale | −8.56K | $3.86 | −$33.0K | −2.0%409.4K after | 3 lots |
| Aug 25, 2026 (view filing)7:11 PM ET | Aug 21 | 4 days | Kelliher MikeChief Business Officer | SSale | −7.76K | $3.86 | −$29.9K | −2.2%349.7K after | 3 lots |
| Aug 25, 2026 (view filing)7:09 PM ET | Aug 21 | 4 days | Williams Laura AChief Patient Officer | SSale | −10.7K | $3.86 | −$41.4K | −2.8%367.5K after | 4 lots |
| Aug 25, 2026 (view filing)7:07 PM ET | Aug 21 | 4 days | Raab MichaelPresident & CEO | SSale | −58.6K | $3.86 | −$225.9K | −3.5%1.62M after | 4 lots |
| Jul 17, 2026 (view filing)4:09 PM ET | Jul 15 | 2 days | Raab MichaelPresident & CEO | SSale | −41.7K | $5.06 | −$210.9K | −2.4%1.68M after | 10b5-1 |
| Jun 22, 2026 (view filing) | Jun 18 | 4 days | Williams Laura AChief Patient Officer | SSale | −81.9K | $5.99 | −$490.6K | −17.8%378.2K after | 10b5-1 |
Top 10 13F holders, Q2 2026
See all 251 holdersThe largest institutional positions in Ardelyx, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 23,504,630 | $119.9M | 0.00% | +2,340,498+11.1% | Added |
| Rubric Capital Management LP | 16,202,700 | $82.6M | 0.76% | +14,341,804+770.7% | Added |
| Millennium Management LLC | 13,900,773 | $70.9M | 0.05% | −3,941,597−22.1% | Reduced |
| State Street Corp | 13,356,128 | $68.1M | 0.00% | −248,179−1.8% | Reduced |
| Vanguard Capital Management LLC | 10,471,494 | $53.4M | 0.00% | +105,982+1.0% | Added |
| Nomura Asset Management International Inc. | 9,546,732 | $48.7M | 0.07% | +1,377,363+16.9% | Added |
| Vanguard Portfolio Management LLC | 8,026,774 | $40.9M | 0.00% | +1,365,081+20.5% | Added |
| Geode Capital Management, LLC | 6,401,736 | $32.7M | 0.00% | +394,281+6.6% | Added |
| Jupiter Topco LLC | 5,302,311 | $27.0M | 0.01% | +5,302,311 | New |
| Two Sigma Investments, LP | 5,209,823 | $26.6M | 0.02% | +935,780+21.9% | Added |
Holders of 5% or more of ARDX
See all 3 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Ardelyx, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Rubric Capital Management LP | 13G | 6.56%16.2M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Integrated Core Strategies (US) LLC | 13G/A | 5.70%14.2M shares | −1.70 ppfrom 7.40% | Jan 12, 20263 filings | Aug 11, 2026 | SEC |
| State Street Corp | 13G | 5.50%13.6M shares | +0.60 ppfrom 4.90% | Jul 10, 20235 filings | May 12, 2026 | SEC |
Politician trades
All politician trades in ARDX1 member of Congress reported 1 trade in Ardelyx, Inc. since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Mar 22, 2025 |  Ashley Moody Senate · FL | Sell (full) | $1K-$15K |
Senate · FL · Mar 22, 2025
Sell (full)$1K-$15K