Ardelyx, Inc.
MX ˙ BMV ˙ US0396971071
SecurityMX:ARDX / Ardelyx, Inc.
InstitutionProShare Advisors LLC
Latest Disclosed Ownership45,707 shares
Latest Disclosed Value $ 273,786
ProShare Advisors LLC reports 16.18% decrease in ownership of ARDX / Ardelyx, Inc.

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 45,707 shares of Ardelyx, Inc. (MX:ARDX) valued at $273,786 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 54,531 shares of Ardelyx, Inc.. This represents a change in shares of -16.18% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F ARDELYX COM 039697107 45,707 -8,824 -16.18 274 -13.88 0.0004
2026-02-06 2025-12-31 13F ARDELYX COM 039697107 54,531 5,595 11.43 318 17.84 0.0006
2025-11-06 2025-09-30 13F ARDELYX COM 039697107 48,936 -8,388 -14.63 270 20.09 0.0006
2025-08-07 2025-06-30 13F ARDELYX COM 039697107 57,324 -4,354 -7.06 225 -25.83 0.0004
2025-05-08 2025-03-31 13F ARDELYX COM 039697107 61,678 -15,791 -20.38 303 -22.96 0.0007
2025-02-14 2024-12-31 13F ARDELYX COM 039697107 77,469 19,643 33.97 393 -1.51 0.0009
2024-11-14 2024-09-30 13F ARDELYX COM 039697107 57,826 12,501 27.58 398 18.81 0.0010
2024-08-13 2024-06-30 13F ARDELYX COM 039697107 45,325 -12,404 -21.49 336 -20.43 0.0009
2024-05-08 2024-03-31 13F ARDELYX COM 039697107 57,729 4,735 8.93 421 28.35 0.0011
2024-02-14 2023-12-31 13F ARDELYX COM 039697107 52,994 11,082 26.44 329 91.81 0.0010
2023-11-13 2023-09-30 13F ARDELYX COM 039697107 41,912 334 0.80 171 22.14 0.0005
2023-08-10 2023-06-30 13F ARDELYX COM 039697107 41,578 27,811 202.01 141 115.38 0.0004
2023-05-26 2023-03-31 13F/A-1 ARDELYX COM 039697107 13,767 -1,737 -11.20 66 47.73 0.0002
2023-05-12 2023-03-31 13F ARDELYX COM 039697107 13,767 -1,737 66 0.0002
2023-02-02 2022-12-31 13F ARDELYX COM 039697107 15,504 15,504 44 0.0002
2022-07-30 2022-06-30 13F ARDELYX COM 039697107 0 -18,117 -100.00 0 -100.00
2022-05-10 2022-03-31 13F ARDELYX COM 039697107 18,117 -2,991 -14.17 19 -13.64 0.0000
2022-02-08 2021-12-31 13F ARDELYX COM 039697107 21,108 -12,247 -36.72 22 -50.00 0.0000
2021-11-12 2021-09-30 13F ARDELYX COM 039697107 33,355 -6,330 -15.95 44 -85.38 0.0001
2021-08-13 2021-06-30 13F ARDELYX COM 039697107 39,685 7,416 22.98 301 40.65 0.0009
2021-05-14 2021-03-31 13F ARDELYX COM 039697107 32,269 1,941 6.40 214 9.18 0.0007
2021-02-09 2020-12-31 13F ARDELYX COM 039697107 30,328 7,005 30.03 196 60.66 0.0007
2020-11-13 2020-09-30 13F ARDELYX COM 039697107 23,323 -835 -3.46 122 -26.95 0.0006
2020-08-03 2020-06-30 13F ARDELYX COM 039697107 24,158 8,278 52.13 167 85.56 0.0009
2020-05-15 2020-03-31 13F ARDELYX COM 039697107 15,880 -4,116 -20.58 90 -40.00 0.0006
2020-02-12 2019-12-31 13F ARDELYX COM 039697107 19,996 19,996 25.92 150 66.67 0.0007
2019-02-14 2018-12-31 13F ARDELYX COM 039697107 0 -30,655 -100.00 0 -100.00
2018-11-14 2018-09-30 13F ARDELYX COM 039697107 30,655 979 3.30 133 20.91 0.0009
2018-08-13 2018-06-30 13F ARDELYX COM 039697107 29,676 3,428 13.06 110 -17.29 0.0007
2018-05-14 2018-03-31 13F ARDELYX COM 039697107 26,248 -4,322 -14.14 133 -34.16 0.0009
2018-02-14 2017-12-31 13F ARDELYX COM 039697107 30,570 1,554 5.36 202 24.69 0.0014
2017-11-13 2017-09-30 13F ARDELYX COM 039697107 29,016 1,742 6.39 162 16.55 0.0015
2017-08-11 2017-06-30 13F ARDELYX COM 039697107 27,274 -1,581 -5.48 139 -61.92 0.0014
2017-05-12 2017-03-31 13F/A-2 ARDELYX COM 039697107 28,855 -7,410 -20.43 365 -29.13 0.0038
2017-05-08 2017-03-31 13F/A-1 ARDELYX COM 039697107 28,855 0 365 0.0038
2017-04-25 2017-03-31 13F ARDELYX COM 039697107 28,855 365
2017-02-13 2016-12-31 13F ARDELYX COM 039697107 36,265 3,379 10.27 515 20.89 0.0057
2016-11-10 2016-09-30 13F ARDELYX COM 039697107 32,886 4,311 15.09 426 71.08 0.0059
2016-08-12 2016-06-30 13F ARDELYX COM 039697107 28,575 262 0.93 249 13.18 0.0032
2016-05-06 2016-03-31 13F ARDELYX COM 039697107 28,313 5,017 21.54 220 -47.87 0.0030
2016-02-05 2015-12-31 13F ARDELYX COM 039697107 23,296 23,296 422 0.0051
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.