Aquatic Capital Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Aquatic Capital Management’s Portfolio RYTM Stock Details RYTM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$2.58M	Buy	+29,671	New	+$2.89M	0.07%	325
2025 Q4	–	Sell	-42,490	Closed	-$4.29M	–	1722
2025 Q3	$4.29M	Buy	42,490 +38,537	+975%	+$3.58M	0.08%	301
2025 Q2	$250K	Sell	3,953 -37,523	-90%	-$2.3M	0.01%	980
2025 Q1	$2.2M	Buy	41,476 +32,253	+350%	+$1.79M	0.06%	393
2024 Q4	$516K	Buy	+9,223	New	+$509K	0.01%	708
2024 Q2	–	Sell	-8,600	Closed	-$373K	–	1548
2024 Q1	$373K	Buy	+8,600	New	+$376K	0.01%	615
2023 Q4	–	Sell	-3,100	Closed	-$71K	–	1589
2023 Q3	$71K	Buy	+3,100	New	+$69.4K	﹤0.01%	899
2022 Q3	–	Sell	-2,300	Closed	-$10K	–	1497
2022 Q2	$10K	Buy	2,300 +2,000	+667%	+$10.9K	﹤0.01%	971
2022 Q1	$3K	Sell	300 -3,700	-93%	-$32.5K	﹤0.01%	926
2021 Q4	$40K	Buy	+4,000	New	+$44.9K	0.08%	374

Other funds holding RYTM

RCM

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Aquatic Capital Management's RYTM Position: Q1 2026 in Review

Aquatic Capital Management opened a new position in Rhythm Pharmaceuticals (RYTM) in Q1 2026: 29,671 shares worth $2.58M. The stake represents 0.07% of the portfolio and ranks #325 among its holdings. This is a return to the name: Aquatic Capital Management previously reported a position in RYTM as recently as Q3 2025.

Aquatic Capital Management first reported a position in RYTM in Q4 2021 and has held it in 10 quarters since. The position peaked at $4.29M in Q3 2025. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

Aquatic Capital Management held 29,671 shares of Rhythm Pharmaceuticals worth $2.58M as of Q1 2026.
Rhythm Pharmaceuticals was a new Aquatic Capital Management position in Q1 2026.
Rhythm Pharmaceuticals made up 0.07% of Aquatic Capital Management's portfolio in Q1 2026, its #325 holding.
Aquatic Capital Management first reported a position in Rhythm Pharmaceuticals in Q4 2021 and has held it in 10 quarters since.
Aquatic Capital Management's Rhythm Pharmaceuticals position peaked at $4.29M in Q3 2025.
285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

Based on Aquatic Capital Management's 13F filing for Q1 2026, filed 15 May 2026.