RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (RYTM)

Q: What does CUSIP 76243J105 represent in this 13F holders report?

CUSIP 76243J105 is the security identifier for RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share used to aggregate holder disclosures.

Q: How many institutions held RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share in Q3 2023?

143 institutional investors reported RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share for Q3 2023. Use the holders table for investor-level position and value details.

CUSIP: 76243J105

Q3 2023 13F Holders as of 30 Sep 2023

Type / Class: Equity / Common Stock, $0.001 par value per share
Shares outstanding: 69,012,275
Total 13F shares: 68,143,293
Share change: +1,928,765
Total reported value: $1,562,080,292
Put/Call ratio: 22%
Price per share: $22.92
Number of holders: 143
Value change: +$58,456,223
Number of buys: 86
Number of sells: 51

Quarterly Holders Quick Answers

What is CUSIP 76243J105?
CUSIP 76243J105 identifies RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2023
Previous quarter: Q2 2023

Recent filing periods for CUSIP 76243J105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
PRIMECAP MANAGEMENT CO/CA/	13F	Company	12%	8,299,317	$136,855,737	—	30 Jun 2023	13F
BAKER BROS. ADVISORS LP	13F	Company	9.4%	6,498,267	$107,156,423	—	30 Jun 2023	13F
BlackRock Finance, Inc.	13F	Company	9.1%	6,265,005	$103,309,935	—	30 Jun 2023	13F
RA CAPITAL MANAGEMENT, L.P.	13F	Company	8.2%	5,676,067	$93,598,345	—	30 Jun 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	7.5%	5,186,013	$85,517,354	—	30 Jun 2023	13F
FEDERATED HERMES, INC.	13F	Company	5.6%	3,891,683	$64,173,853	—	30 Jun 2023	13F
STATE STREET CORP	13F	Company	4.7%	3,267,425	$53,879,838	—	30 Jun 2023	13F
VANGUARD GROUP INC	13F	Company	4.2%	2,929,429	$48,306,284	—	30 Jun 2023	13F
NEA Management Company, LLC	13F	Company	4.2%	2,909,956	$47,985,174	—	30 Jun 2023	13F
Polar Capital Holdings Plc	13F	Company	3.3%	2,250,000	$37,102,500	—	30 Jun 2023	13F
Frazier Life Sciences Management, L.P.	13F	Company	3.1%	2,167,222	$35,737,491	—	30 Jun 2023	13F
ALKEON CAPITAL MANAGEMENT LLC	13F	Company	2.5%	1,725,167	$28,448,004	—	30 Jun 2023	13F
Rock Springs Capital Management LP	13F	Company	2.3%	1,597,123	$26,336,558	—	30 Jun 2023	13F
VR Adviser, LLC	13F	Company	1.6%	1,090,000	$17,974,100	—	30 Jun 2023	13F
JANUS HENDERSON GROUP PLC	13F	Company	1.6%	1,078,207	$17,779,404	—	30 Jun 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.4%	973,350	$16,050,546	—	30 Jun 2023	13F
BRAIDWELL LP	13F	Company	1.2%	843,087	$13,902,505	—	30 Jun 2023	13F
GREAT POINT PARTNERS LLC	13F	Company	1.1%	772,000	$12,730,280	—	30 Jun 2023	13F
Opaleye Management Inc.	13F	Company	1.1%	735,000	$12,120,150	—	30 Jun 2023	13F
FMR LLC	13F	Company	1%	701,534	$11,568,296	—	30 Jun 2023	13F
Cormorant Asset Management, LP	13F	Company	0.87%	600,000	$9,894,000	—	30 Jun 2023	13F
Assenagon Asset Management S.A.	13F	Company	0.79%	543,210	$8,957,533	—	30 Jun 2023	13F
NORTHERN TRUST CORP	13F	Company	0.72%	494,202	$8,149,390	—	30 Jun 2023	13F
Walleye Capital LLC	13F	Company	0.57%	395,541	$6,522,471	—	30 Jun 2023	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.51%	350,559	$5,780,718	—	30 Jun 2023	13F
Samsara BioCapital, LLC	13F	Company	0.5%	345,293	$5,693,882	—	30 Jun 2023	13F
Rafferty Asset Management, LLC	13F	Company	0.38%	259,344	$4,276,583	—	30 Jun 2023	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.32%	223,237	$3,682,000	—	30 Jun 2023	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.3%	206,035	$3,675,664	—	30 Jun 2023	13F
WEDGE CAPITAL MANAGEMENT L L P/NC	13F	Company	0.32%	218,425	$3,601,828	—	30 Jun 2023	13F
Nuveen Asset Management, LLC	13F	Company	0.29%	198,443	$3,272,325	—	30 Jun 2023	13F
CITADEL ADVISORS LLC	13F	Company	0.27%	189,532	$3,125,383	—	30 Jun 2023	13F
Bank of New York Mellon Corp	13F	Company	0.27%	187,796	$3,096,756	—	30 Jun 2023	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.23%	158,959	$2,621,234	—	30 Jun 2023	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.2%	140,221	$2,312,245	—	30 Jun 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.2%	140,118	$2,310,546	—	30 Jun 2023	13F
BARCLAYS PLC	13F	Company	0.19%	130,228	$2,147,460	—	30 Jun 2023	13F
Jefferies Financial Group Inc.	13F	Company	0.18%	124,170	$2,047,563	—	30 Jun 2023	13F
SILVERARC CAPITAL MANAGEMENT, LLC	13F	Company	0.17%	116,168	$1,915,610	—	30 Jun 2023	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.15%	103,958	$1,714,739	—	30 Jun 2023	13F
MORGAN STANLEY	13F	Company	0.15%	103,181	$1,701,454	—	30 Jun 2023	13F
Swiss National Bank	13F	Company	0.14%	98,800	$1,629,212	—	30 Jun 2023	13F
Kynam Capital Management, LP	13F	Company	0.13%	92,602	$1,527,007	—	30 Jun 2023	13F
CITIGROUP INC	13F	Company	0.13%	88,065	$1,452,192	—	30 Jun 2023	13F
UBS Group AG	13F	Company	0.13%	87,849	$1,448,630	—	30 Jun 2023	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	0.12%	84,038	$1,385,787	—	30 Jun 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.11%	77,094	$1,271,279	—	30 Jun 2023	13F
JANE STREET GROUP, LLC	13F	Company	0.11%	76,024	$1,253,636	—	30 Jun 2023	13F
RHUMBLINE ADVISERS	13F	Company	0.1%	69,598	$1,147,671	—	30 Jun 2023	13F
JPMORGAN CHASE & CO	13F	Company	0.1%	69,588	$1,147,506	—	30 Jun 2023	13F

Institutional Holders of RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (RYTM) as of Q3 2023

As of 30 Sep 2023, RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (RYTM) was held by 143 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 68,143,293 shares. The largest 10 holders included PRIMECAP MANAGEMENT CO/CA/, BAKER BROS. ADVISORS LP, BlackRock Inc., RA CAPITAL MANAGEMENT, L.P., GOLDMAN SACHS GROUP INC, VANGUARD GROUP INC, NEA Management Company, LLC, Polar Capital Holdings Plc, Frazier Life Sciences Management, L.P., and STATE STREET CORP. This page lists 143 institutional shareholders reporting positions in this security for the Q3 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

116

Q3 2023 holders

143

Holder diff

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 Value $	Q3 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.