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Equibles

Rock Springs Capital Management LP

Position in ARDX — Ardelyx, Inc.

CIK 1595725 Baltimore, MD
Back to ARDX Full portfolio

Position in ARDX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$11,433,021
-$2,340,822 QoQ
Shares Held
2,241,769
-2.5% QoQ
Ownership
0.900%
of shares outstanding
% of Portfolio
0.56%
of 13F equity value
Holder Rank
#17
of 250 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ARDX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Rock Springs Capital Management LP holds $1,502,002,537 across 70 Biotechnology names. ARDX ranks #37 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RVMD
Revolution Medicines, Inc.
 1,105,210 $206,983,728
2 TVTX
Travere Therapeutics, Inc.
 2,179,069 $123,792,909
3 MDGL
Madrigal Pharmaceuticals, Inc.
 174,999 $93,965,713
4 MIRM
Mirum Pharmaceuticals, Inc.
 798,145 $93,438,835
5 RYTM
Rhythm Pharmaceuticals, Inc.
 692,598 $76,899,155
6 KYMR
Kymera Therapeutics, Inc.
 453,156 $51,963,398
7 ARGX
Argenx SE
 52,750 $48,939,867
8 ASND
Ascendis Pharma A/S
 168,750 $45,009,000

All Filings in ARDX

Export CSV
13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $11,433,021 2,241,769
2026-03-31 $13,773,843 2,299,473
2025-12-31 $13,405,927 2,299,473
2025-09-30 $12,597,364 2,286,273
2025-06-30 $8,962,190 2,286,273
2025-03-31 $7,880,427 1,604,975
2024-12-31 $7,420,599 1,463,629
2021-06-30 $39,786,123 5,248,829
2021-03-31 $34,268,833 5,176,561
2020-12-31 $33,308,284 5,148,112
2020-09-30 $26,653,551 5,076,867
2020-06-30 $34,704,554 5,015,109
2020-03-31 $27,572,250 4,850,000