Hood River Capital Management’s Rhythm Pharmaceuticals RYTM Stock Holding History

Hood River 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	$20.9M	Buy	239,912 +2,869	+1%	+$279K	0.21%	112
2025 Q4	$25.4M	Buy	237,043 +1,207	+0.5%	+$128K	0.28%	100
2025 Q3	$23.8M	Sell	235,836 -307,852	-57%	-$28.6M	0.28%	95
2025 Q2	$34.4M	Sell	543,688 -115,743	-18%	-$7.09M	0.48%	73
2025 Q1	$34.9M	Buy	659,431 +15,740	+2%	+$873K	0.6%	70
2024 Q4	$36M	Buy	643,691 +29,093	+5%	+$1.61M	0.53%	75
2024 Q3	$32.2M	Buy	+614,598	New	+$29.4M	0.52%	73

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

Hood River Capital Management's RYTM Position: Q1 2026 in Review

Hood River Capital Management increased its Rhythm Pharmaceuticals (RYTM) stake by 1.2% in Q1 2026, buying an estimated $279K and bringing the position to 239,912 shares worth $20.9M. The position accounts for 0.21% of the portfolio, ranked #112.

Hood River Capital Management first reported a position in RYTM in Q3 2024 and has held it in 7 quarters since. The position peaked at $36M in Q4 2024. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

Hood River Capital Management held 239,912 shares of Rhythm Pharmaceuticals worth $20.9M as of Q1 2026.
Hood River Capital Management bought 2,869 Rhythm Pharmaceuticals shares in Q1 2026, an estimated $279K.
Rhythm Pharmaceuticals made up 0.21% of Hood River Capital Management's portfolio in Q1 2026, its #112 holding.
Hood River Capital Management first reported a position in Rhythm Pharmaceuticals in Q3 2024 and has held it in 7 quarters since.
Hood River Capital Management's Rhythm Pharmaceuticals position peaked at $36M in Q4 2024.
285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

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