WhaleCreep

Which hedge funds own RYTM? RHYTHM PHARMACEUTICALS INC, Q2 2026 13F holders

HealthcareBiotechnology

57 tracked hedge funds disclosed a position in RYTM (RHYTHM PHARMACEUTICALS INC) in their Q2 2026 13F filings, worth $2.9bn in total. The largest holder by portfolio weight is Checkpoint Capital L.P. at 33.8% of its book. 14 opened a new position this quarter: Sphera Funds Management Ltd., Duquesne Family Office LLC, Zweig-DiMenna Associates LLC, Cinctive Capital Management LP. 11 exited: Verdad Advisers, LP, PDT Partners, LLC, Fox Run Management, L.L.C..

57
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
14
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
11
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$60.9m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$13.2m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$2.9bn
Combined value
Sum of the holders' reported positions in the security.
4.6%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

57 rows
Checkpoint Capital L.P. Hedge fund33.8%$132m1.19m−3.4%reduced
NEXTBio Capital Management LP Hedge fund6.7%$14.6m131,758+4.5%added
RA Capital Management, L.P. Hedge fund6.4%$740m6.67m0.0%held
Perceptive Advisors LLC Hedge fund4.5%$287m2.59m+9.0%added
Silverarc Capital Management, LLC Hedge fund3.8%$34.6m311,461+1.8%added
Rock Springs Capital Management LP Hedge fund3.8%$76.9m692,598+0.4%held
Baker Bros. Advisors LP Hedge fund3.1%$622m5.60m0.0%held
Integral Health Asset Management, LLC Hedge fund2.5%$61.1m550,000−8.3%reduced
Sofinnova Investments, Inc. Hedge fund2.4%$45.3m408,027−9.3%reduced
Exome Asset Management LLC Hedge fund2.2%$3.6m32,209−21%reduced
Braidwell LP Hedge fund1.6%$42.3m381,128+23%added
Sphera Funds Management Ltd. Hedge fund1.3%$8.9m80,400–new
Opaleye Management Inc. Hedge fund1.2%$13.6m122,500−0.4%held
PFM Health Sciences, LP Hedge fund1.0%$11.3m101,550−26%reduced
Atom Investors LP Hedge fund0.7%$8.2m73,465+29%added
ADAR1 Capital Management, LLC Hedge fund0.7%$15.1m136,158−36%reduced
Orbimed Advisors LLC Hedge fund0.7%$35.9m322,900+2.8%added
Logos Global Management LP Hedge fund0.6%$13.9m125,000−72%reduced
First Light Asset Management, LLC Hedge fund0.6%$9.5m85,765−1.6%reduced
Polar Capital Holdings Plc Hedge fund0.5%$185m1.66m+3.0%added
Duquesne Family Office LLC Family office0.5%$22.6m203,618–new
Zweig-DiMenna Associates LLC Hedge fund0.4%$4.7m42,100–new
SummitTX Capital, L.P. Hedge fund0.4%$14.0m126,401−24%reduced
HighVista Strategies LLC Hedge fund0.3%$1.5m13,657−19%reduced
Woodline Partners LP Hedge fund0.3%$84.3m758,8910.0%held
Candriam S.C.A. Hedge fund0.2%$48.0m433,025−6.7%reduced
Cinctive Capital Management LP Hedge fund0.2%$4.7m42,739–new
Hillsdale Investment Management Inc. Hedge fund0.1%$4.9m44,000+9.2%added
Squarepoint Ops LLC Hedge fund0.09%$47.0m422,921+61%added
Axiom Investors LLC Hedge fund0.08%$9.6m86,880−5.3%reduced
Citadel Advisors LLC Hedge fund0.08%$140m1.26m−11%reduced
Aquatic Capital Management LLC Hedge fund0.08%$2.2m19,754−33%reduced
Point72 Asset Management, L.P. Hedge fund0.07%$46.0m414,210−51%reduced
ExodusPoint Capital Management, LP Hedge fund0.06%$6.8m61,147+244%added
Adage Capital Partners GP, L.L.C. Hedge fund0.06%$44.1m397,000−45%reduced
Fulcrum Asset Management LLP Hedge fund0.06%$556k5,049–new
Capital Fund Management S.A. Hedge fund0.05%$7.6m68,548–new
Entropy Technologies, LP Hedge fund0.05%$1.3m12,077+17%added
Bayforest Capital Ltd Hedge fund0.05%$56.7k511–new
Trexquant Investment LP Hedge fund0.04%$6.2m56,248–new
Millennium Management LLC Hedge fund0.02%$35.2m316,719−30%reduced
Y-Intercept (Hong Kong) Ltd Hedge fund0.02%$880k7,925–new
Schonfeld Strategic Advisors LLC Hedge fund0.02%$3.2m28,607–new
Qube Research & Technologies Ltd Hedge fund0.02%$14.9m134,410−52%reduced
WCM Investment Management Long-only investor0.02%$8.9m80,552−0.1%held
CenterBook Partners LP Hedge fund0.01%$219k1,975−78%reduced
Renaissance Technologies LLC Hedge fund0.01%$7.6m68,281−74%reduced
Tudor Investment Corp ET AL Hedge fund0.01%$1.5m13,886−29%reduced
Magnetar Financial LLC Hedge fund0.0%$434k3,908–new
Walleye Capital LLC Hedge fund0.0%$666k5,996–new