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MILLENNIUM MANAGEMENT LLC

Position in RYTM — Rhythm Pharmaceuticals, Inc.

CIK 1273087 NEW YORK, NY

Position in RYTM

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$39,295,220
+$19,309,889 QoQ
Shares Held
451,825
+142.0% QoQ
Ownership
0.659%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2020
19 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in RYTM Over Time

Shares Held

Position Value (USD)

Derivatives in RYTM

reported options exposure · as of Sep 30, 2025
CallValue
$2,575,245
CallShares
25,500
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $4,466,124,984 across 340 Biotechnology names. RYTM ranks #27 (0.9% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in RYTM

Export CSV
27 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $39,295,220 451,825
2025-12-31 $19,985,331 186,709
2025-09-30 $13,447,929 133,161
2025-09-30 $2,575,245 25,500
2025-06-30 $12,518,570 198,110
2025-06-30 $631,900 10,000
2025-03-31 $11,514,565 217,379
2025-03-31 $794,550 15,000
2024-12-31 $854,198 15,259
2024-09-30 $1,937,225 36,977
2024-03-31 $433,300 10,000
2023-12-31 $1,601,181 34,831
2023-09-30 $888,848 38,772
2023-09-30 $806,960 35,200
2023-09-30 $692,335 30,200
2023-03-31 $1,427,200 80,000
2023-03-31 $9,756,803 546,906
2022-12-31 $1,231,717 42,298
2022-06-30 $2,029,852 489,121
2022-03-31 $4,154,019 360,592
2021-12-31 $3,130,765 313,704
2021-09-30 $522,400 40,000
2021-09-30 $2,833,027 216,924
2021-06-30 $3,070,457 156,816
2021-03-31 $3,627,109 170,527
2021-03-31 $212,700 10,000
2020-12-31 $208,110 7,000