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Of the 12 tracked institutions holding ARDX, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +5.1pt. It's a gauge of who owns the name, not just how many.
Among the 12 tracked institutional investors we monitor, ARDX (ARDELYX INC) is held with a combined value of $401.76M across 75,866,263 shares. The largest holder is BlackRock, Inc. with a position worth $119.87M. 3 funds increased their holdings. 9 funds reduced their position.
Total Institutional Value
$401.76M
Total Shares Held
75,866,263
Institutional Holders
12
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $119.87M | 0.00% | +11.1% |
| 2 | VANGUARD GROUP INC | $110.65M | 0.00% | +3.3% |
| 3 | MILLENNIUM MANAGEMENT LLC | $70.89M | 0.05% | -23.0% |
| 4 | STATE STREET CORP | $68.12M | 0.00% | -1.8% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $11.81M | 0.00% | -5.1% |
| 6 | TWO SIGMA ADVISERS, LP | $7.86M | 0.02% | -16.5% |
| 7 | CITADEL ADVISORS LLC | $5.25M | 0.00% | -70.3% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $4.55M | 0.01% | -29.9% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.83M | 0.00% | +22.4% |
| 10 | WELLINGTON MANAGEMENT GROUP LLP | $460.83K | 0.00% | -5.1% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ARDX with a position worth $119.87M, representing 0.00% of their portfolio. In total, 12 institutional investors hold ARDX with a combined value of $401.76M.
Institutional investors hold $401.76M worth of ARDX stock across 12 positions. The largest institutional holder is BlackRock, Inc. with $119.87M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ARDX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ARDX positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-11 |
SEC Schedule 13D (activist) and 13G (passive) filings for ARDX. Filed when an investor acquires 5%+ ownership.
Last Close
$3.13
2026-10-21
YTD
-49.1%
1% of 52-week range
