Ardelyx, Inc. (ARDX) Stock Price & Analysis
Ardelyx, Inc. (ARDX) is trading at USD 3.09, down 0.48% today, as of October 29, 2026 at 18:20 UTC (US market open; quotes may be delayed), according to Nexqual market data.
ARDX last closed at USD 3.1; today's session has ranged USD 3.08–3.16 on volume of 1,142,421 shares. Market capitalization is $796.51M, with a 52-week range of USD 2.96–8.4 (NGM). Source: Nexqual, retrieved October 29, 2026 at 18:20 UTC.
Also available as compact Markdown for AI agents: nexqual.com/ARDX.md
Key facts (ARDX)
- Last four reported quarters (through Jun 30, 2026): revenue $451M, net income -$55.7M (-12.4% margin), free cash flow -$17.9M (SEC filings).
- Insider open-market sales, last ~7 months: 21 Form 4 filings, $2.5M; 16 not under a Rule 10b5-1 plan ($1.0M); 0 by opportunistic insiders, 9 by routine insiders (three-year test, Cohen, Malloy & Pomorski 2012).
- Analysts: Buy (mean 1.91 on a 1–5 scale) (11 analysts), mean target USD 12.8 (range 8–18).
- Total return with dividends: 1Y -37.8% vs S&P 500 +12.8%; 5Y +155.0% vs S&P 500 +78.7%.
- Next earnings: 2026-11-03, EPS estimate USD -0.02, revenue estimate $129M.
Financials (SEC 10-K; TTM = last four 10-Q/10-K quarters) (ARDX)
| USD | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 | TTM |
|---|---|---|---|---|---|---|
| Revenue | $10.1M | $52.2M | $124M | $334M | $407M | $451M |
| Gross profit | $9.1M | $48.0M | $107M | $283M | $368M | — |
| Operating income | -$154M | -$63.8M | -$63.3M | -$27.9M | -$41.0M | -$35.5M |
| Net income | -$158M | -$67.2M | -$66.1M | -$39.1M | -$61.6M | -$55.7M |
| EPS (diluted) | -$1.52 | -$0.42 | -$0.30 | -$0.17 | -$0.26 | — |
| Free cash flow | -$154M | -$70.1M | -$90.1M | -$45.8M | -$44.0M | -$17.9M |
| Gross margin | 90.1% | 92.1% | 85.7% | 84.8% | 90.3% | — |
| Operating margin | -1528.6% | -122.2% | -50.8% | -8.4% | -10.1% | -7.9% |
| Net margin | -1566.5% | -128.9% | -53.1% | -11.7% | -15.1% | -12.4% |
| Revenue growth | +33.4% | +416.6% | +138.6% | +168.1% | +22.1% | — |
| Cash + short-term investments | $117M | $124M | $184M | $250M | $265M | — |
| Total debt | $64.5M | $26.7M | $49.8M | $151M | $203M | — |
Fiscal years end Dec. EPS is split-adjusted.
Valuation (price ÷ last four quarters, through Jun 30, 2026) (ARDX)
P/S 1.8x · EV/Sales 1.7x · P/B 5.3x · FCF yield -2.25% · Earnings yield -6.99% · Net cash $30.0M · EV $767M
Insider sales (SEC Form 4, open-market, last ~7 months) (ARDX)
5 of 21 under a Rule 10b5-1 trading plan (scheduled in advance). Unplanned sales were timed by the insider.
| Trade date | Insider | Role | Shares | Value | % of holdings sold | 10b5-1 plan | Insider type |
|---|---|---|---|---|---|---|---|
| 2026-08-21 | Hohenleitner Susan | Chief Financial Officer | 1,558 | $6K | 0.7% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-08-21 | Reilly Joseph James | See Remarks | 3,982 | $15K | 2.7% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-08-21 | Bishop John E | See Remarks | 19,750 | $76K | 5.9% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-08-21 | Brady James Parker | Chief Human Resources Officer | 15,136 | $58K | 5.8% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-08-21 | Foster Eric Duane | Chief Commercial Officer | 8,562 | $33K | 2% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-08-21 | Kelliher Mike | Chief Business Officer | 7,758 | $30K | 2.2% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-08-21 | Williams Laura A | Chief Patient Officer | 10,739 | $41K | 2.8% | No | Routine (sold in Feb & May & Aug & Nov each year 2023–2025) |
| 2026-08-21 | Raab Michael | President & CEO | 58,574 | $226K | 3.4% | No | Routine (sold in Feb & May & Aug & Nov each year 2023–2025) |
| 2026-07-15 | Raab Michael | President & CEO | 41,668 | $211K | 2.4% | Yes (adopted November 7, 2025) | Routine (sold in Feb & May & Aug & Nov each year 2023–2025; this trade is outside those months) |
| 2026-06-18 | Williams Laura A | Chief Patient Officer | 81,898 | $490K | 17.8% | Yes (adopted March 19, 2026) | Routine (sold in Feb & May & Aug & Nov each year 2023–2025; this trade is outside those months) |
| 2026-06-15 | Raab Michael | President & CEO | 41,666 | $236K | 2.4% | Yes (adopted November 7, 2025) | Routine (sold in Feb & May & Aug & Nov each year 2023–2025; this trade is outside those months) |
| 2026-05-21 | Reilly Joseph James | See Remarks | 3,719 | $23K | 2.4% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-05-21 | Hohenleitner Susan | Chief Financial Officer | 1,455 | $9K | 0.6% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-05-21 | Bishop John E | See Remarks | 2,306 | $14K | 0.7% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-05-21 | Brady James Parker | Chief Human Resources Officer | 1,846 | $12K | 0.7% | No | Too little history (no open-market trades in 2023–2025) |
| 2026-05-21 | Foster Eric Duane | Chief Commercial Officer | 7,998 | $50K | 1.9% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-05-21 | Kelliher Mike | Chief Business Officer | 7,248 | $45K | 2% | No | Too little history (no open-market trades in 2023 or 2024) |
| 2026-05-21 | Williams Laura A | Chief Patient Officer | 6,989 | $44K | 1.6% | No | Routine (sold in Feb & May & Aug & Nov each year 2023–2025) |
| 2026-05-21 | Raab Michael | President & CEO | 54,748 | $343K | 3% | No | Routine (sold in Feb & May & Aug & Nov each year 2023–2025) |
| 2026-05-15 | Raab Michael | President & CEO | 41,666 | $262K | 2.3% | Yes (adopted November 7, 2025) | Routine (sold in Feb & May & Aug & Nov each year 2023–2025) |
% of holdings sold = shares sold ÷ (shares sold + all holdings the insider reported on that Form 4, direct and through trusts).
Insider type follows Cohen, Malloy & Pomorski (Journal of Finance, 2012). An insider who traded the stock in the same calendar month in each of the past three years is a routine trader; one who traded in each of those years without such a pattern is an opportunistic trader. In their study, trades by opportunistic insiders predicted future returns and trades by routine insiders did not. Counts open-market purchases and sales only (SEC Form 4 codes P and S) by that insider in that company. Not investment advice.
Analysts (ARDX)
Consensus Buy (mean 1.91 on a 1–5 scale), 11 analysts; mean target USD 12.8 (low 8, high 18).
Rating changes, last 120 days:
| Date | Firm | Action | Rating | Price target |
|---|---|---|---|---|
| 2026-08-19 | Wedbush | Reiterated | Outperform | $9 |
| 2026-08-18 | Wedbush | Reiterated | Outperform | $9 |
| 2026-08-17 | Piper Sandler | Target lowered | Overweight | $16 → $15 |
| 2026-08-10 | Citigroup | Target lowered | Buy | $14 → $11 |
| 2026-08-07 | TD Cowen | Target lowered | Buy | $13 → $10 |
| 2026-08-07 | BTIG | Target lowered | Buy | $17 → $14 |
Total return (dividends reinvested) (ARDX)
| 1Y (from 2025-10-29) | 5Y (from 2021-10-25) | |
|---|---|---|
| Total return | -37.8% | +155.0% |
| S&P 500 (SPY) | +12.8% | +78.7% |
| Per year | -37.8% | +20.5% |
| Volatility (annualized) | 61.0% | 76.7% |
| Max drawdown | -62.5% (Jan 2026→Oct 2026) | -68.4% (Feb 2024→Oct 2026) |
ARDX earnings history and stock reaction
| Results filed | Quarter | EPS | Consensus | Surprise | Stock reaction |
|---|---|---|---|---|---|
| — | Quarter ended Jun 30, 2026 | −$0.07 | −$0.05 | Miss −40.0% | — |
| — | Quarter ended Mar 31, 2026 | −$0.15 | −$0.14 | Miss −7.1% | — |
| — | Quarter ended Dec 31, 2025 | $0.00 | $0.01 | Miss −$0.01 | — |
| — | Quarter ended Sep 30, 2025 | $0.00 | −$0.07 | Beat +$0.07 | — |
EPS as reported against the analyst consensus before the release; surprise uses the cent-rounded figures shown (in dollars when EPS and consensus have opposite signs). Stock reaction = close before the results to close after (the first close following a release after the bell or before the open).
ARDX recent SEC filings (last 120 days)
| Filed | Form | What it says |
|---|---|---|
| Aug 17, 2026 | 8-K | Other material event “On August 11, 2026, Eric Foster notified Ardelyx, Inc. (the "Company") of his decision to resign as Chief Commercial Officer of the Company, effective August 28, 2026. Mr. Foster resigned to pursue a new opportunity with a pre-commercial company, and his resignation is not a result of any disagreement with the Company.” |
| Aug 14, 2026 | Schedule 13G | Rubric Capital Management LP, David Rosen: 6.6% of shares, passive 5%+ holder |
| Aug 11, 2026 | Schedule 13G/A | Integrated Core Strategies (US) LLC, Millennium Management LLC: 5.7% of shares, passive 5%+ holder (amended) |
| Aug 6, 2026 | 10-Q | Quarterly report · period ended Jun 30, 2026 |
| Aug 6, 2026 | 8-K | Quarterly results; Regulation FD disclosure |
| Jul 2, 2026 | 8-K | New debt or off-balance-sheet obligation “On June 29, 2026, Ardelyx, Inc. (the "Company") received $50.0 million of funding (the "Term F Loan") pursuant to the loan and security agreement entered into in February 2022 by and between the Company and SLR Investment Corp., as collateral agent (the "Agent") and the lenders listed in the agreement (collectively, the "Lenders"), as amended in August 2022, February 2023, October 2023, October 2024, June 2025 and April 2026 (collectively, the "Loan Agreement"). The Company elected to draw down the Term F Loan for…” |
Source: SEC EDGAR. Quotes are the opening words of each item as filed; each form links to the filing. Insider Form 4 filings are listed in the insider sections.
ARDX suppliers, customers and competitors (named in its 10-K)
| Relationship | Company | Sentence in the filing |
|---|---|---|
| Partner | METiS Therapeutics | “We have an exclusive license agreement with METiS Therapeutics Inc., (METiS Agreement) for the development and commercialization of a portfolio of TGR5 agonist compounds that we discovered and developed for all therapeutic areas in exchange for (i) an upfront license fee of $0.8 million, recognized upon execution of the agreement in 2023; and (ii) potential future development and commercialization milestones of up…” |
Quoted from the company's 10-K filed Feb 19, 2026.
Companies that name ARDX in their SEC reports
| Relationship to ARDX | Company | Filing | Sentence |
|---|---|---|---|
| partner | Tempest Therapeutics, Inc. (TPST) | 10-K Mar 30, 2026 | “Before Ardelyx, Mr. Raab was a partner at New Enterprise Associates ("NEA"), where he focused on the biotechnology and pharmaceutical sectors.” |
ARDX analyst estimates and revisions
| Period | EPS estimate | 90 days ago | Change | Revenue estimate | Analysts |
|---|---|---|---|---|---|
| Current quarter (ends Sep 2026) | $-0.02 | $0.04 | −$0.06 | $128.7M | 8 |
| Next quarter (ends Dec 2026) | $0.04 | $0.10 | -58.1% | $143.8M | 8 |
| Current fiscal year (ends Dec 2026) | $-0.19 | $-0.05 | −$0.13 | $487.2M | 8 |
| Next fiscal year (ends Dec 2027) | $0.29 | $0.52 | -43.6% | $624.1M | 8 |
Key Statistics (as of October 29, 2026 at 18:20 UTC)
| Price | USD 3.09 |
|---|---|
| Change | ▼ 0.48% (down) |
| Previous Close | USD 3.1 |
| Open | USD 3.12 |
| Day Range | USD 3.08 – 3.16 |
| 52-Week Range | USD 2.96 – 8.4 |
| Volume | 1,142,421 shares |
| Market Cap | $796.51M |
| Exchange | NGM |
Technical Analysis (ARDX)
Nexqual's technical model rates ARDX "STRONG SELL" based on 0 bullish and 5 bearish signals across 128 daily candles, as of October 29, 2026 at 18:20 UTC.
| Overall Signal | STRONG SELL |
|---|---|
| RSI (14) | 41.23 (neutral) |
| vs SMA50 | Below (USD 3.44) |
| MACD | -0.12 (negative) |
Analyst Ratings (ARDX)
Wall Street analysts rate ARDX "Buy" based on 11 analysts, with a mean price target of USD 12.8 (range USD 8–18), per Nexqual as of October 29, 2026 at 18:20 UTC.
| Consensus Rating | Buy |
|---|---|
| Analyst Count | 11 |
| Mean Target | USD 12.8 |
| High Target | USD 18 |
| Low Target | USD 8 |
| Buy / Hold / Sell | 11 / 0 / 0 |
Earnings (ARDX)
| Next Earnings Date | 2026-11-03 |
|---|---|
| EPS Estimate | USD -0.02 |
| Revenue Estimate | $128.68M |
Recent Earnings History
| Quarter | Actual vs Estimate |
|---|---|
| 2026-06-30 | USD -0.07 vs est -0.05 ▼ miss |
| 2026-03-31 | USD -0.15 vs est -0.14 ▼ miss |
| 2025-12-31 | USD 0 vs est 0.01 ▼ miss |
| 2025-09-30 | USD 0 vs est -0.07 ▲ beat |
Source: Nexqual, October 29, 2026 at 18:20 UTC.
Financials & Fundamentals (ARDX)
| Total Revenue | $450.89M |
|---|---|
| Revenue Growth (latest quarter, YoY) | +23.80% |
| Gross Margin | +75.02% |
| Operating Margin | -10.28% |
| Profit Margin | -12.35% |
| ROE | -38.61% |
| Debt / Equity | 1.9 |
| Current Ratio | 3.34 |
| Total Cash | $281.83M |
| Total Debt | $282.51M |
| Free Cash Flow (last four quarters to Jun 2026, SEC 10-Q / 10-K) | -$17.92M (-4.0% of revenue) |
Source: Nexqual, October 29, 2026 at 18:20 UTC.
Financial Health Score (ARDX)
Nexqual rates Ardelyx, Inc.'s overall financial health "Mixed" across five dimensions, as of October 29, 2026 at 18:20 UTC.
| Growth | Strong — Revenue +22% YoY (annual) |
|---|---|
| Profitability | Solid — Gross margin 94%, operating -8% (last 4 quarters to Jun 2026, SEC) |
| Balance Sheet | Weak — $282M cash and investments vs $252M debt (Jun 2026, SEC), net cash |
| Cash Flow | Weak — FCF negative: -$18M (last 4 quarters to Jun 2026, SEC), burning cash |
| Efficiency | Critical — ROE -37%, ROA -9.7% (last 4 quarters, SEC) |
Ownership (ARDX)
| Insider Ownership | +3.04% |
|---|---|
| Institutional Ownership | +73.18% |
| Shares Outstanding | 258.19M |
| Float | 210.66M |
| Short % of Float | +11.96% |
Source: Nexqual, October 29, 2026 at 18:20 UTC.
Leadership (ARDX)
Ardelyx, Inc. is led by Michael G. Raab, President, CEO & Director, per Nexqual as of October 29, 2026 at 18:20 UTC.
| President, CEO & Director | Michael G. Raab |
|---|---|
| Chief Financial Officer | Sue Hohenleitner |
| Senior Vice President of Investor Relations and Corporate Communications | Lisa M. Caperelli |
Major Backers & Investors (ARDX)
Notable institutional backers of Ardelyx, Inc. include Rubric Capital Management LP, Millennium Management, Nomura Asset Management International Inc, according to Nexqual as of October 29, 2026 at 18:20 UTC.
Active Investors
| Investor | Stake |
|---|---|
| Rubric Capital Management LP | 6.5% |
| Millennium Management | 5.58% |
| Nomura Asset Management International Inc | 3.83% |
| Delaware Group Equity Funds V-Nomura Small Cap Core Fund | 2.51% |
| Jupiter Topco LLC | 2.13% |
| Two Sigma Investments, LP | 2.09% |
Index Funds (Passive)
| Fund | Stake |
|---|---|
| BlackRock | 9.43% |
| Vanguard Group | 7.42% |
| State Street | 5.36% |
| Geode Capital | 2.57% |
Source: Nexqual, October 29, 2026 at 18:20 UTC.
From Ardelyx, Inc.'s Latest SEC 10-K Filing (filed 2026-02-19)
Key Strengths & Strategy (as disclosed to the SEC)
- Although we take steps to protect our proprietary information and trade secrets, including through contractual means with our employees and consultants, third parties may independently develop substantially equivalent proprietary information and techniques or otherwise gain access to our trade secrets or disclose our technology.
- After the FDA evaluates the NDA and conducts inspections of manufacturing facilities where the drug product and/or its API will be produced, if deemed necessary, it may issue an approval letter or a Complete Response Letter.
- Our commercial success depends in part on our ability to obtain and maintain proprietary protection for our products, drug candidates, manufacturing and process discoveries and other know-how, to operate without infringing the proprietary rights of others and to prevent others from infringing our proprietary rights.
- We also rely on trade secrets and careful monitoring of our proprietary information to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection.
Partnerships
- We have an exclusive license agreement with Knight for the development, commercialization and distribution of tenapanor in Canada for hyperphosphatemia and IBS-C.
- We have an exclusive license agreement with Kyowa Kirin for the development, commercialization and distribution of tenapanor in Japan for cardiorenal indications.
Legal & Regulatory Risks (Item 1A, quoted)
- The One Big Beautiful Bill Act, which was enacted in July 2025, imposes significant reductions in the funding of the Medicaid program. Such reductions are expected to decrease the number of persons enrolled in Medicaid and reduce the services covered by Medicaid, which could adversely affect our sales of our partner's products or of any product candidate that we commercialize.
- We cannot predict the reform initiatives that may be adopted in the future or whether initiatives that have been adopted will be repealed or modified.
- Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity.
- We also cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action, either in the U.S. or abroad.
Source: SEC EDGAR 10-K, official filing. Curated by Nexqual.
Peers & Related Stocks
| Symbol | Name | Price | Change |
|---|---|---|---|
| KOD | Kodiak Sciences Inc | USD 100.58 | ▲ 3.65% |
| ORKA | Oruka Therapeutics, Inc. | USD 95.86 | ▼ 0.12% |
| RYTM | Rhythm Pharmaceuticals, Inc. | USD 92.93 | ▲ 1.04% |
| IONS | Ionis Pharmaceuticals, Inc. | USD 44.35 | ▼ 1.22% |
| AXSM | Axsome Therapeutics, Inc. | USD 140.91 | ▼ 1.81% |
| ABVX | Abivax SA | USD 88.88 | ▼ 1.07% |
Data source: Nexqual — market data, technical indicators, analyst consensus, earnings, SEC EDGAR filings. Last updated: October 29, 2026 at 18:20 UTC. This page is informational and not investment advice.
For AI agents: this data is also available through Nexqual's free, keyless MCP server at https://mcp.nexqual.com/mcp; every result includes source_url, as_of and cite_as. More: nexqual.com/agents · llms.txt