Ardelyx, Inc.
US ˙ NasdaqGM ˙ US0396971071

SecurityARDX / Ardelyx, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership400,907 shares
Latest Disclosed Value $ 1,571,555
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series ownership in ARDX / Ardelyx, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 400,907 shares of Ardelyx, Inc. (US:ARDX) valued at $1,571,555 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 400,907 shares of Ardelyx, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,229,043 USD.

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)
2025-08-26 2025-06-30 NP Ardelyx EC US0396971071 400,907 0 0.00 1,572 -20.17 0.0353
2025-05-28 2025-03-31 NP Ardelyx EC US0396971071 400,907 -90 -0.02 1,968 -3.20 0.0472
2025-02-25 2024-12-31 NP Ardelyx EC US0396971071 400,997 -59,283 -12.88 2,033 -35.89 0.0444
2024-11-26 2024-09-30 NP Ardelyx EC US0396971071 460,280 23,178 5.30 3,171 -2.07 0.0600
2024-08-26 2024-06-30 NP Ardelyx EC US0396971071 437,102 48,792 12.57 3,239 14.26 0.0660
2024-05-28 2024-03-31 NP Ardelyx EC US0396971071 388,310 0 0.00 2,835 17.74 0.0591
2024-02-26 2023-12-31 NP Ardelyx EC US0396971071 388,310 24,464 6.72 2,408 62.20 0.0514
2023-11-28 2023-09-30 NP Ardelyx EC US0396971071 363,846 -2,651 -0.72 1,484 19.48 0.0387
2023-08-25 2023-06-30 NP Ardelyx EC US0396971071 366,497 214,244 140.72 1,242 666.67 0.0295
2022-05-26 2022-03-31 NP Ardelyx EC US0396971071 152,253 0 0.00 163 -2.99 0.0038
2022-02-25 2021-12-31 NP Ardelyx EC US0396971071 152,253 35,294 30.18 167 8.44 0.0036
2021-11-24 2021-09-30 NP Ardelyx EC US0396971071 116,959 0 0.00 154 -82.62 0.0034
2021-08-26 2021-06-30 NP Ardelyx EC US0396971071 116,959 0 0.00 887 14.47 0.0190
2021-05-27 2021-03-31 NP Ardelyx EC US0396971071 116,959 -6,397 -5.19 774 -3.01 0.0176
2021-02-25 2020-12-31 NP Ardelyx EC US0396971071 123,356 0 0.00 798 23.34 0.0204
2020-11-25 2020-09-30 NP Ardelyx EC US0396971071 123,356 0 0.00 648 -24.15 0.0208
2020-08-27 2020-06-30 NP Ardelyx EC US0396971071 123,356 22,161 21.90 854 48.35 0.0279
2020-06-01 2020-03-31 NP Ardelyx EC US0396971071 101,195 28,323 38.87 575 5.31 0.0235
2020-02-27 2019-12-31 NP Ardelyx EC 039697107 72,872 1,835 2.58 547 63.96 0.0164
2019-11-27 2019-09-30 NP Ardelyx EC US0396971071 71,037 71,037 334 0.0110
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.