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

CUSIP 76243J105 is the security identifier for RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock in Q3 2020?

114 institutional investors reported RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock for Q3 2020. Use the holders table for investor-level position and value details.

RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM)

CUSIP: 76243J105

Q3 2020 13F Holders as of 30 Sep 2020

Type / Class: Equity / Common Stock
Shares outstanding: 68,385,438
Total 13F shares: 39,249,591
Share change: -2,011,023
Total reported value: $850,611,960
Put/Call ratio: 284%
Price per share: $21.67
Number of holders: 114
Value change: -$43,710,727
Number of buys: 53
Number of sells: 46

Quarterly Holders Quick Answers

What is CUSIP 76243J105?
CUSIP 76243J105 identifies RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

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

Newer quarter: Q4 2020
Previous quarter: Q2 2020

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 (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
RA CAPITAL MANAGEMENT, L.P.	13F	Company	7.6%	5,210,088	$116,185,000	—	30 Jun 2020	13F
NEA Management Company, LLC	13F	Company	7.2%	4,912,306	$109,544,000	—	30 Jun 2020	13F
JANUS HENDERSON GROUP PLC	13F	Company	6.4%	4,410,488	$98,353,000	—	30 Jun 2020	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	5.2%	3,544,791	$79,049,000	—	30 Jun 2020	13F
BlackRock Finance, Inc.	13F	Company	4.1%	2,795,841	$62,347,000	—	30 Jun 2020	13F
BAKER BROS. ADVISORS LP	13F	Company	3.9%	2,700,055	$60,211,000	—	30 Jun 2020	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	3.8%	2,596,923	$57,913,000	—	30 Jun 2020	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	3.6%	2,470,013	$55,081,000	—	30 Jun 2020	13F
FEDERATED HERMES, INC.	13F	Company	3.3%	2,266,071	$50,534,000	—	30 Jun 2020	13F
VANGUARD GROUP INC	13F	Company	2.9%	1,971,023	$43,954,000	—	30 Jun 2020	13F
MPM ASSET MANAGEMENT LLC	13F	Company	2.8%	1,909,258	$42,576,000	—	30 Jun 2020	13F
STATE STREET CORP	13F	Company	1.7%	1,136,492	$25,344,000	—	30 Jun 2020	13F
Rock Springs Capital Management LP	13F	Company	0.75%	512,111	$11,420,000	—	30 Jun 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.7%	476,750	$10,631,000	—	30 Jun 2020	13F
NORTHERN TRUST CORP	13F	Company	0.67%	459,723	$10,251,000	—	30 Jun 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.47%	322,635	$7,194,000	—	30 Jun 2020	13F
Marshall Wace North America L.P.	13F	Company	0.44%	301,568	$6,725,000	—	30 Jun 2020	13F
Samsara BioCapital, LLC	13F	Company	0.4%	276,289	$6,161,000	—	30 Jun 2020	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.37%	256,158	$5,712,000	—	30 Jun 2020	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.34%	235,900	$5,261,000	—	30 Jun 2020	13F
NORGES BANK	13F	Company	0.34%	230,195	$5,133,000	—	30 Jun 2020	13F
FMR LLC	13F	Company	0.33%	226,078	$5,042,000	—	30 Jun 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.31%	210,124	$4,686,000	—	30 Jun 2020	13F
MARTINGALE ASSET MANAGEMENT L P	13F	Company	0.24%	165,079	$3,682,000	—	30 Jun 2020	13F
Bank of New York Mellon Corp	13F	Company	0.18%	126,306	$2,817,000	—	30 Jun 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.17%	117,777	$2,626,000	—	30 Jun 2020	13F
AVIVA PLC	13F	Company	0.16%	112,513	$2,509,000	—	30 Jun 2020	13F
BARCLAYS PLC	13F	Company	0.15%	101,851	$2,270,000	—	30 Jun 2020	13F
JPMORGAN CHASE & CO	13F	Company	0.14%	95,857	$2,137,000	—	30 Jun 2020	13F
BESSEMER GROUP INC	13F	Company	0.13%	86,359	$1,926,000	—	30 Jun 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.1%	68,000	$1,516,000	—	30 Jun 2020	13F
MANGROVE PARTNERS IM, LLC	13F	Company	0.08%	57,138	$1,274,000	—	30 Jun 2020	13F
Swiss National Bank	13F	Company	0.08%	54,000	$1,204,000	—	30 Jun 2020	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.07%	50,685	$1,130,000	—	30 Jun 2020	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	0.07%	50,300	$1,122,000	—	30 Jun 2020	13F
RHUMBLINE ADVISERS	13F	Company	0.07%	44,628	$995,000	—	30 Jun 2020	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.06%	41,300	$921,000	—	30 Jun 2020	13F
Brandywine Global Investment Management, LLC	13F	Company	0.06%	41,231	$920,000	—	30 Jun 2020	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.05%	37,210	$830,000	—	30 Jun 2020	13F
CREDIT SUISSE AG/	13F	Company	0.05%	37,053	$826,000	—	30 Jun 2020	13F
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY	13F	Company	0.05%	35,579	$793,000	—	30 Jun 2020	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.05%	35,185	$785,000	—	30 Jun 2020	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.05%	33,305	$743,000	—	30 Jun 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.05%	33,073	$738,000	—	30 Jun 2020	13F
Athanor Capital, LP	13F	Company	0.04%	26,349	$588,000	—	30 Jun 2020	13F
MORGAN STANLEY	13F	Company	0.04%	24,550	$548,000	—	30 Jun 2020	13F
CITIGROUP INC	13F	Company	0.03%	23,334	$520,000	—	30 Jun 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.03%	21,506	$480,000	—	30 Jun 2020	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.03%	20,559	$458,000	—	30 Jun 2020	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.03%	20,362	$444,000	—	30 Jun 2020	13F

Institutional Holders of RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) as of Q3 2020

As of 30 Sep 2020, RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) was held by 114 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 39,249,591 shares. The largest 10 holders included RA CAPITAL MANAGEMENT, L.P., NEA Management Company, LLC, JANUS HENDERSON GROUP PLC, PRIMECAP MANAGEMENT CO/CA/, BlackRock Inc., BAKER BROS. ADVISORS LP, WELLINGTON MANAGEMENT GROUP LLP, FEDERATED HERMES, INC., MPM ASSET MANAGEMENT LLC, and DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C). This page lists 114 institutional shareholders reporting positions in this security for the Q3 2020 filing period.

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

Compare Q3 2020 vs Q2 2020 Across Filers

Q2 2020 holders

Q3 2020 holders

114

Holder diff

Investor	Q2 2020 Shares	Q3 2020 Shares	Share Diff	Share Chg %	Q2 2020 Value $	Q3 2020 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.