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Equibles

Driehaus Capital Management LLC

Position in RYTM — Rhythm Pharmaceuticals, Inc.

CIK 938206 Chicago, IL
Back to RYTM Full portfolio

Position in RYTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$14,354,513
-$23,611,892 QoQ
Shares Held
129,285
-70.4% QoQ
Ownership
0.188%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2022
16 quarters on record
Voting authority Sole 78% Shared 0% None 22%

Common Shares in RYTM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Driehaus Capital Management LLC holds $3,707,249,767 across 60 Biotechnology names. RYTM ranks #40 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 DFTX
Definium Therapeutics, Inc.
 6,845,276 $322,001,783
2 PRAX
Praxis Precision Medicines, Inc.
 959,048 $321,079,679
3 XENE
Xenon Pharmaceuticals Inc.
 4,418,557 $266,704,100
4 SYRE
Spyre Therapeutics, Inc.
 2,799,166 $248,509,957
5
6,463,551 $241,866,078
6
1,740,101 $230,963,605
7 EWTX
Edgewise Therapeutics, Inc.
 4,728,623 $192,123,952
8 SEPN
Septerna, Inc.
 4,433,058 $148,463,112

All Filings in RYTM

Export CSV
16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,354,513 129,285
2026-03-31 $37,966,405 436,546
2025-12-31 $137,570,162 1,285,222
2025-09-30 $139,747,437 1,383,775
2025-06-30 $80,248,266 1,269,952
2025-03-31 $77,231,425 1,458,022
2024-12-31 $72,268,780 1,290,975
2024-09-30 $68,080,281 1,299,490
2024-06-30 $48,548,112 1,182,370
2024-03-31 $37,069,031 855,505
2023-12-31 $27,531,662 598,905
2023-09-30 $6,293,462 274,524
2023-06-30 $379,154 22,993
2023-03-31 $410,195 22,993
2022-12-31 $669,556 22,993
2022-09-30 $563,328 22,993