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Rhythm Pharmaceuticals, Inc.

RYTM
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001649904

In the last 90 days, Rhythm Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 6 sales; 305 institutions reported holding it in 13F filings for Q2 2026, worth $8.55B in total; Duquesne Family Office is the only superinvestor holding it.

13F holders, Q1 2024

Institutional positions in Rhythm Pharmaceuticals, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
167
−2 vs. Q4 2023
Shares held
68.0M
+1.33M (+2.0%) vs. Q4 2023
Total value
$2.95B
−$119.7M (−3.9%) vs. Q4 2023
New holders
25
63 more added
Sold out
27
54 more reduced

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting RYTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 167 institutions
Q1 2021: 124 institutionsQ2 2021: 105 institutionsQ3 2021: 97 institutionsQ4 2021: 98 institutionsQ1 2022: 111 institutionsQ2 2022: 90 institutionsQ3 2022: 101 institutionsQ4 2022: 115 institutionsQ1 2023: 126 institutionsQ2 2023: 116 institutionsQ3 2023: 144 institutionsQ4 2023: 169 institutionsQ1 2024: 167 institutionsQ2 2024: 165 institutionsQ3 2024: 176 institutionsQ4 2024: 203 institutionsQ1 2025: 228 institutionsQ2 2025: 227 institutionsQ3 2025: 264 institutionsQ4 2025: 281 institutionsQ1 2026: 285 institutionsQ2 2026: 305 institutions
Value heldQ1 2024: $2.95B
Q1 2021: $1.01BQ2 2021: $905.6MQ3 2021: $626.3MQ4 2021: $483.6MQ1 2022: $562.7MQ2 2022: $190.8MQ3 2022: $1.45BQ4 2022: $1.81BQ1 2023: $1.08BQ2 2023: $1.09BQ3 2023: $1.56BQ4 2023: $3.07BQ1 2024: $2.95BQ2 2024: $2.85BQ3 2024: $3.55BQ4 2024: $3.63BQ1 2025: $3.44BQ2 2025: $4.20BQ3 2025: $7.20BQ4 2025: $7.80BQ1 2026: $6.42BQ2 2026: $8.55B
Institutions holding RYTM and their total value by quarter
QuarterHoldersValue
Q2 2026305$8.55B
Q1 2026285$6.42B
Q4 2025281$7.80B
Q3 2025264$7.20B
Q2 2025227$4.20B
Q1 2025228$3.44B
Q4 2024203$3.63B
Q3 2024176$3.55B
Q2 2024165$2.85B
Q1 2024167$2.95B
Q4 2023169$3.07B
Q3 2023144$1.56B
Q2 2023116$1.09B
Q1 2023126$1.08B
Q4 2022115$1.81B
Q3 2022101$1.45B
Q2 202290$190.8M
Q1 2022111$562.7M
Q4 202198$483.6M
Q3 202197$626.3M
Q2 2021105$905.6M
Q1 2021124$1.01B

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q4 2023.

Institutions holding RYTM in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
HighVista Strategies LLC14,362$622.3K0.22%00.0%Unchanged
ProShare Advisors LLC13,808$598.3K0.00%+1,527+12.4%Added
STRS Ohio13,600$589.0K0.00%+10,600+353.3%Added
Tudor Investment Corp Et Al13,355$578.7K0.01%+8,455+172.6%Added
Arizona State Retirement System12,993$563.0K0.00%+267+2.1%Added
Bellevue Group AG12,500$541.6K0.01%−20,369−62.0%Reduced
ADAR1 Capital Management, LLC12,400$537.3K0.15%+12,400New
China Universal Asset Management Co., Ltd.11,561$500.9K0.06%+4,724+69.1%Added
SEI Investments Co11,470$497.0K0.00%+5,296+85.8%Added
Gotham Asset Management, LLC11,103$481.1K0.01%−7,370−39.9%Reduced
Prelude Capital Management, LLC10,706$463.9K0.03%−6,700−38.5%Reduced
Teacher Retirement System of Texas10,521$456.0K0.00%−13−0.1%Reduced
D. E. Shaw & Co., Inc.10,462$453.3K0.00%−118,030−91.9%Reduced
E Fund Management Co., Ltd.10,333$447.7K0.03%+3,800+58.2%Added
Connor, Clark & Lunn Investment Management Ltd.9,675$419.2K0.00%−55,869−85.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)9,118$395.1K0.00%−63−0.7%Reduced
Allianz SE9,080$393.4K0.01%+9,080New
Omers Administration Corp9,000$390.0K0.00%+9,000New
Virtus ETF Advisers LLC8,874$384.5K0.20%+1,277+16.8%Added
Aquatic Capital Management LLC8,600$372.6K0.01%+8,600New
SG Americas Securities, LLC7,513$326.0K0.00%+13+0.2%Added
Allianz Asset Management GmbH7,400$320.6K0.00%−4,500−37.8%Reduced
Principal Financial Group Inc7,180$311.1K0.00%+1,227+20.6%Added
LPL Financial LLC6,807$294.9K0.00%−50−0.7%Reduced
Capstone Investment Advisors, LLC6,738$292.0K0.01%+6,738New
Aigen Investment Management, LP6,479$280.7K0.06%+6,479New
Public Employees Retirement Association of Colorado6,249$271.0K0.00%−662−9.6%Reduced
Natixis6,050$262.1K0.00%−74,450−92.5%Reduced
Jasper Ridge Partners, L.P.5,639$244.3K0.01%00.0%Unchanged
Ameritas Investment Partners, Inc.5,318$230.4K0.01%00.0%Unchanged
Chicago Partners Investment Group LLC5,445$217.8K0.01%+5,445New
Great West Life Assurance Co4,796$208.0K0.00%00.0%Unchanged
Group One Trading, L.P.4,275$185.2K0.01%+4,275New
Texas Treasury Safekeeping Trust Co4,230$183.0K0.01%00.0%Unchanged
Citadel Advisors LLC4,098$177.6K0.00%−109,817−96.4%Reduced
Quantbot Technologies LP3,600$156.0K0.01%−4,400−55.0%Reduced
Metropolitan Life Insurance Co2,812$121.8K0.01%−156−5.3%Reduced
Whittier Trust Co2,000$86.6K0.00%00.0%Unchanged
ZRC Wealth Management, LLC1,971$85.4K0.04%+1,571+392.8%Added
Amalgamated Bank1,815$79.0K0.00%−5,458−75.0%Reduced
Lazard Asset Management LLC1,733$75.0K0.00%−124−6.7%Reduced
Fernwood Investment Management, LLC1,554$67.3K0.02%+1,554New
Royal Bank of Canada1,444$63.0K0.00%−14,688−91.0%Reduced
Tucker Asset Management LLC1,400$60.7K0.01%+1,400New
KBC Group NV1,263$55.0K0.00%00.0%Unchanged
Cutler Group LP1,100$47.0K0.02%+600+120.0%Added
Pacer Advisors, Inc.1,018$44.1K0.00%+1,018New
Advisor Group Holdings, Inc.728$31.5K0.00%+519+248.3%Added
Tower Research Capital LLC (TRC)539$23.4K0.00%−9,169−94.4%Reduced
CWM, LLC404$18.0K0.00%+197+95.2%Added
Russell Investments Group, Ltd.385$16.7K0.00%+385New
Quest Partners LLC271$11.7K0.00%+271New
Daiwa Securities Group Inc.227$10.0K0.00%00.0%Unchanged
Truvestments Capital LLC216$9.36K0.00%00.0%Unchanged
Signaturefd, LLC213$9.23K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.101$4.38K0.00%+101New
Lindbrook Capital, LLC97$4.20K0.00%00.0%Unchanged
US Bancorp62$2.69K0.00%00.0%Unchanged
Private Trust Co NA52$2.25K0.00%−4−7.1%Reduced
Global Retirement Partners, LLC35$1.52K0.00%00.0%Unchanged
GAMMA Investing LLC28$1.21K0.00%+15+115.4%Added
Allspring Global Investments Holdings, LLC20$8670.00%+20New
Nelson, Van Denburg & Campbell Wealth Management Group, LLC10$4330.00%+10New
Farther Finance Advisors, LLC9$3840.00%00.0%Unchanged
Parallel Advisors, LLC5$2170.00%00.0%Unchanged
Rothschild Investment LLC5$2170.00%+5New
Covestor Ltd3$00.00%−1−25.0%Reduced
VR Adviser, LLC0$00.00%−495,983−100.0%Sold out
Dimensional Fund Advisors LP0$00.00%−96,948−100.0%Sold out
Zimmer Partners, LP0$00.00%−61,800−100.0%Sold out
HRT Financial LP0$00.00%−54,534−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−40,197−100.0%Sold out
Millennium Management LLC0$00.00%−34,831−100.0%Sold out
Mirae Asset Global Investments Co., Ltd.0$00.00%−29,444−100.0%Sold out
Virtu Financial LLC0$00.00%−26,501−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−14,670−100.0%Sold out
Jump Financial, LLC0$00.00%−12,793−100.0%Sold out
Fred Alger Management, LLC0$00.00%−11,795−100.0%Sold out
Los Angeles Capital Management LLC0$00.00%−10,593−100.0%Sold out
Concurrent Investment Advisors, LLC0$00.00%−7,472−100.0%Sold out
Stratos Wealth Partners, LTD.0$00.00%−7,264−100.0%Sold out
Scientech Research LLC0$00.00%−5,125−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−5,089−100.0%Sold out
Old Well Partners, LLC0$00.00%−4,600−100.0%Sold out
XTX Topco Ltd0$00.00%−4,386−100.0%Sold out
BIT Capital GmbH0$00.00%−2,489−100.0%Sold out
Quarry LP0$00.00%−1,500−100.0%Sold out
nVerses Capital, LLC0$00.00%–Sold out
Northwestern Mutual Wealth Management Co0$00.00%−1,250−100.0%Sold out
AJOVista, LLC0$00.00%−920−100.0%Sold out
EntryPoint Capital, LLC0$00.00%−317−100.0%Sold out
Focused Wealth Management, Inc0$00.00%−300−100.0%Sold out
Bell Investment Advisors, Inc0$00.00%−19−100.0%Sold out
GWM Advisors LLC0$00.00%−5−100.0%Sold out