Latest Period
Q1 2026
Security Snapshot
ARDELYX, INC. - Common Stock (ARDX) Institutional Ownership
CUSIP: 039697107
13F Institutional Holders and Ownership History from Q2 2014 to Q1 2026
Institutions Reporting
235
Shares (Excl. Options)
169,395,477
Price
$5.99
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- Security type / class
- Equity / Common Stock
- Symbol
- ARDX on Nasdaq
- Shares outstanding
- 246,212,765
- Reported price per share
- $6.61
- Price from insider filings
- $6.61
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 169,395,477
- Total reported value
- $1,013,249,498
- Portfolio coverage rank
- 0%
- Share change
- +4,733,066
- Value change
- +$29,546,633
- Number of holders
- 235
Security identity
Issuer context
Latest holder snapshot
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- ARDX - ARDELYX, INC. - Common Stock is tracked under CUSIP 039697107.
- 235 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 228 to 235 between Q4 2025 and Q1 2026.
- Reported value moved from $972,189,997 to $1,013,249,498.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 235 institutions filings for Q1 2026.
Security key
039697107
Latest holder period
Q1 2026
13F holders
235
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
ARDX full holder history
ARDELYX, INC. SEC filings
ARDELYX, INC. company facts
ARDELYX, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 039697107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
ARDX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| INTEGRATED CORE STRATEGIES (US) LLC | 7.4% | +40% | $108,083,380 | +$29,483,912 | 18,043,970 | +38% | Millennium Management LLC | 31 Mar 2026 |
| STATE STREET CORP | 5.5% | +12% | $83,122,316 | +$12,289,611 | 13,604,307 | +17% | STATE STREET CORPORATION | 31 Mar 2026 |
| JANUS HENDERSON GROUP PLC | 3.4% | -38% | $51,148,240 | -$33,316,968 | 8,371,234 | -39% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| MILLENNIUM MANAGEMENT LLC | 3.2% | -38% | $42,272,648 | -$24,398,060 | 7,671,987 | -37% | Millennium Management LLC | 30 Sep 2025 |
As of 31 Mar 2026, 235 institutional investors reported holding 169,395,477 shares of ARDELYX, INC. - Common Stock (ARDX). This represents 69% of the company’s total 246,212,765 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
56%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.6% | 21,164,132 | +0.12% | 0% | $126,773,151 |
| MILLENNIUM MANAGEMENT LLC | 7.2% | 17,842,370 | +50% | 0.08% | $106,875,796 |
| STATE STREET CORP | 5.5% | 13,604,307 | +14% | 0% | $81,489,799 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2% | 10,365,512 | 0% | 0% | $62,089,417 |
| JANUS HENDERSON GROUP PLC | 3.4% | 8,371,234 | -42% | 0.02% | $50,143,692 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 3.3% | 8,169,369 | -12% | 0.08% | $48,935,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.7% | 6,661,693 | 0% | 0% | $39,903,541 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 6,007,455 | +3.1% | 0% | $35,991,723 |
| Nuveen, LLC | 2.1% | 5,234,683 | +1.4% | 0.01% | $31,355,751 |
| TWO SIGMA INVESTMENTS, LP | 1.7% | 4,274,043 | +49% | 0.02% | $25,601,518 |
| CITADEL ADVISORS LLC | 1.4% | 3,464,774 | +161% | 0.01% | $20,753,997 |
| GOLDMAN SACHS GROUP INC | 1.3% | 3,216,210 | +4.9% | 0% | $19,265,098 |
| J. Goldman & Co LP | 1.2% | 3,000,513 | +85% | 0.83% | $17,973,073 |
| Point72 Asset Management, L.P. | 1.2% | 2,984,261 | +211% | 0.03% | $17,875,723 |
| AQR CAPITAL MANAGEMENT LLC | 0.99% | 2,439,450 | +20% | 0.01% | $14,612,307 |
| Qube Research & Technologies Ltd | 0.99% | 2,435,548 | +122% | 0.02% | $14,588,933 |
| BANK OF AMERICA CORP /DE/ | 0.95% | 2,336,994 | +5.8% | 0% | $13,998,594 |
| Rock Springs Capital Management LP | 0.93% | 2,299,473 | 0% | 0.81% | $13,773,843 |
| Eversept Partners, LP | 0.91% | 2,229,446 | +30% | 0.88% | $13,354,382 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.86% | 2,114,098 | -0.15% | 0% | $12,663,447 |
| NORTHERN TRUST CORP | 0.84% | 2,071,047 | +2.6% | 0% | $12,405,571 |
| Freestone Grove Partners LP | 0.76% | 1,879,783 | +169% | 0.08% | $11,259,900 |
| Rubric Capital Management LP | 0.76% | 1,860,896 | 0.14% | $11,146,767 | |
| JONES FINANCIAL COMPANIES LLLP | 0.75% | 1,858,891 | +0.22% | 0% | $10,186,723 |
| MORGAN STANLEY | 0.69% | 1,708,972 | -28% | 0% | $10,236,746 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
48
Latest
Q1 2026
Rows shown
1-25 of 48
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 169,395,477 | $1,013,249,498 | +$29,546,633 | $5.99 | 235 |
| 2025 Q4 | 166,742,867 | $972,189,997 | -$19,578,141 | $5.83 | 228 |
| 2025 Q3 | 161,691,530 | $891,018,221 | -$30,479,434 | $5.51 | 220 |
| 2025 Q2 | 167,710,260 | $657,039,970 | +$8,960,616 | $3.92 | 203 |
| 2025 Q1 | 164,576,582 | $808,416,494 | +$58,328,254 | $4.91 | 220 |
| 2024 Q4 | 150,859,849 | $764,834,270 | +$39,500,927 | $5.07 | 211 |
| 2024 Q3 | 141,707,765 | $975,933,629 | -$20,620,523 | $6.89 | 200 |
| 2024 Q2 | 144,224,130 | $1,068,439,534 | +$27,386,203 | $7.41 | 194 |
| 2024 Q1 | 140,660,510 | $1,026,744,623 | +$30,824,013 | $7.30 | 187 |
| 2023 Q4 | 136,969,310 | $849,140,365 | +$78,952,256 | $6.20 | 158 |
| 2023 Q3 | 125,847,784 | $513,505,151 | +$7,178,966 | $4.08 | 150 |
| 2023 Q2 | 125,431,955 | $425,166,678 | +$30,557,318 | $3.39 | 144 |
| 2023 Q1 | 113,675,323 | $544,693,922 | +$165,294,361 | $4.79 | 129 |
| 2022 Q4 | 78,419,304 | $223,207,438 | +$72,727,186 | $2.85 | 98 |
| 2022 Q3 | 66,773,937 | $79,510,458 | +$36,649,057 | $1.19 | 78 |
| 2022 Q2 | 38,015,789 | $22,668,222 | -$3,885,722 | $0.59 | 72 |
| 2022 Q1 | 39,645,840 | $42,412,652 | -$2,239,091 | $1.07 | 85 |
| 2021 Q4 | 41,835,051 | $46,015,167 | -$11,862,592 | $1.10 | 95 |
| 2021 Q3 | 48,724,792 | $64,486,313 | -$260,541,309 | $1.32 | 98 |
| 2021 Q2 | 84,843,798 | $643,129,955 | +$1,702,726 | $7.58 | 120 |
| 2021 Q1 | 84,628,144 | $559,673,700 | +$30,418,660 | $6.62 | 120 |
| 2020 Q4 | 80,265,333 | $519,321,662 | +$11,395,260 | $6.47 | 118 |
| 2020 Q3 | 77,475,843 | $406,751,205 | -$2,248,690 | $5.25 | 107 |
| 2020 Q2 | 77,584,170 | $536,863,818 | +$8,872,855 | $6.92 | 124 |
| 2020 Q1 | 76,585,606 | $435,405,838 | +$6,098,633 | $5.68 | 97 |