ARDELYX, INC.
Total Trades
198
Buys
16
Sells
165
Largest Trade
$1M+
Insiders
15
Institutional Funds
175
Inst. Value
$1M+
Activist Filings
26
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| GRAMMER ELIZABETH A | See Remarks | SELL | $1K–$15K | 3K | $3.00 | Feb 24, 2023 |
| RAAB MICHAEL | President & CEO | SELL | $15K–$50K | 13K | $3.00 | Feb 24, 2023 |
| Felsch Robert Ora | See Remarks | SELL | $1K–$15K | 3K | $3.00 | Feb 24, 2023 |
| Renz Justin A | CFO | SELL | $1K–$15K | 3K | $3.00 | Feb 24, 2023 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 5K | $3.00 | Feb 24, 2023 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 2K | $1.95 | Nov 23, 2022 |
| GRAMMER ELIZABETH A | See Remarks | SELL | $1K–$15K | 1K | $1.95 | Nov 23, 2022 |
| Rodriguez Susan | Chief Commercial O… | SELL | $1K–$15K | 3K | $1.95 | Nov 23, 2022 |
| RAAB MICHAEL | President & CEO | SELL | $1K–$15K | 6K | $1.95 | Nov 23, 2022 |
| Renz Justin A | CFO | SELL | $1K–$15K | 2K | $1.95 | Nov 23, 2022 |
| Williams Laura A | Chief Medical Offi… | SELL | $1K–$15K | 1K | $1.95 | Nov 23, 2022 |
| Blanks Robert | See Remarks | SELL | $1K–$15K | 1K | $1.95 | Nov 23, 2022 |
| MOTT DAVID M | Director | BUY | $1M+ | 567K | $1.76 | Nov 17, 2022 |
| Blanks Robert | See Remarks | SELL | $100K–$500K | 100K | $1.50 | Oct 7, 2022 |
| Felsch Robert Ora | See Remarks | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 3K | $0.92 | Sep 1, 2022 |
| Rosenbaum David P. | Chief Development … | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| Renz Justin A | CFO | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| Williams Laura A | Chief Medical Offi… | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| RAAB MICHAEL | President & CEO | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| GRAMMER ELIZABETH A | See Remarks | BUY | $1K–$15K | 3K | $0.62 | Sep 1, 2022 |
| Blanks Robert | See Remarks | SELL | $15K–$50K | 22K | $1.04 | Aug 29, 2022 |
| Rodriguez Susan | Chief Commercial O… | SELL | $1K–$15K | 3K | $0.98 | Aug 24, 2022 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 2K | $0.98 | Aug 24, 2022 |
| Blanks Robert | See Remarks | SELL | $1K–$15K | 1K | $0.98 | Aug 24, 2022 |
| RAAB MICHAEL | President & CEO | SELL | $1K–$15K | 6K | $0.98 | Aug 24, 2022 |
| GRAMMER ELIZABETH A | See Remarks | SELL | $1K–$15K | 1K | $0.98 | Aug 24, 2022 |
| Williams Laura A | Chief Medical Offi… | SELL | $1K–$15K | 1K | $0.98 | Aug 24, 2022 |
| Renz Justin A | CFO | SELL | $1K–$15K | 1K | $0.98 | Aug 24, 2022 |
| Blanks Robert | See Remarks | SELL | $1K–$15K | 5K | $0.67 | Jul 28, 2022 |
| Renz Justin A | CFO | SELL | $15K–$50K | 73K | $0.65 | Jun 9, 2022 |
| Rodriguez Susan | Chief Commercial O… | SELL | $15K–$50K | 44K | $0.65 | Jun 9, 2022 |
| Blanks Robert | See Remarks | SELL | $15K–$50K | 73K | $0.65 | Jun 9, 2022 |
| GRAMMER ELIZABETH A | See Remarks | SELL | $15K–$50K | 61K | $0.65 | Jun 9, 2022 |
| Rosenbaum David P. | Chief Development … | SELL | $15K–$50K | 62K | $0.65 | Jun 9, 2022 |
| RAAB MICHAEL | President & CEO | SELL | $50K–$100K | 104K | $0.65 | Jun 9, 2022 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 2K | $0.67 | May 23, 2022 |
| Renz Justin A | CFO | SELL | $1K–$15K | 2K | $0.67 | May 23, 2022 |
| Rodriguez Susan | Chief Commercial O… | SELL | $1K–$15K | 3K | $0.67 | May 23, 2022 |
| Blanks Robert | See Remarks | SELL | <$1K | 1K | $0.67 | May 23, 2022 |
| RAAB MICHAEL | President & CEO | SELL | $1K–$15K | 6K | $0.67 | May 23, 2022 |
| GRAMMER ELIZABETH A | See Remarks | SELL | <$1K | 1K | $0.67 | May 23, 2022 |
| Renz Justin A | CFO | SELL | $1K–$15K | 2K | $0.67 | Feb 25, 2022 |
| Blanks Robert | See Remarks | SELL | $1K–$15K | 2K | $0.67 | Feb 25, 2022 |
| RAAB MICHAEL | President & CEO | SELL | $1K–$15K | 6K | $0.67 | Feb 25, 2022 |
| GRAMMER ELIZABETH A | See Remarks | SELL | $1K–$15K | 2K | $0.67 | Feb 25, 2022 |
| Rosenbaum David P. | Chief Development … | SELL | $1K–$15K | 2K | $0.67 | Feb 25, 2022 |
| Rodriguez Susan | Chief Commercial O… | SELL | $1K–$15K | 3K | $0.67 | Feb 25, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 175 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 11.9M | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 9.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 5.0M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $1M+ | SH |
| ORACLE INVESTMENT MANAGEMENT INC | 1.9M | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 1.8M | $1M+ | SH |
| J. Goldman & Co LP | 1.6M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.4M | $1M+ | SH |
| MORGAN STANLEY | 1.0M | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 1.0M | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 1.0M | $1M+ | SH |
| Hennion & Walsh Asset Management, Inc. | 960K | $1M+ | SH |
| Point72 Asset Management, L.P. | 959K | $1M+ | SH |
| BARCLAYS PLC | 763K | $1M+ | SH |
| BlackRock, Inc. | 735K | $1M+ | SH |
| Freestone Grove Partners LP | 699K | $1M+ | SH |
| PANAGORA ASSET MANAGEMENT INC | 659K | $1M+ | SH |
| MARSHALL WACE, LLP | 559K | $1M+ | SH |
| Y-Intercept (Hong Kong) Ltd | 500K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 498K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Jan 30, 2026
7.8%
19.0M shares
Integrated Core Strategies (US) LLC
SC 13G · Jan 12, 2026
5.3%
12.9M shares
SC 13G/A · Nov 14, 2025
5.7%
13.8M shares
SC 13G/A · Oct 28, 2025
3.2%
7.7M shares
SC 13G/A · Aug 14, 2025
6.3%
15.1M shares
SC 13G/A · Jul 29, 2025
6.7%
16.0M shares
SC 13G · Jun 25, 2025
5.1%
12.1M shares
SC 13G/A · May 14, 2025
10.5%
25.0M shares
SC 13G/A · Feb 14, 2025
10.3%
24.4M shares
SC 13G · Feb 5, 2025
4.9%
11.6M shares
SC 13G/A · Dec 6, 2024
10.1%
23.9M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Nov 14, 2024
9.1%
21.5M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Jul 10, 2024
5.1%
0 shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Feb 13, 2024
10.6%
24.7M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.6%
13.0M shares
SC 13G/A · Jan 31, 2024
0.0%
6K shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Jan 30, 2024
7.4%
0 shares
SC 13G · Jan 26, 2024
7.2%
16.8M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G · Jul 10, 2023
10.5%
0 shares
SC 13G/A · Feb 14, 2023
0.0%
0 shares
SC 13G/A · Jan 27, 2023
5.4%
10.6M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G · Jan 9, 2023
10.5%
19.8M shares
SC 13G · Dec 2, 2022
5.3%
9.9M shares
SC 13G · Sep 12, 2022
8.4%
14.3M shares
Rock Springs Capital Management LP
SC 13G/A · Feb 14, 2022
0.0%
0 shares
SC 13G/A · Jan 10, 2022
5.0%
5.6M shares