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 Q4 2019?

89 institutional investors reported RYTM - RHYTHM PHARMACEUTICALS, INC. - Common Stock for Q4 2019. Use the holders table for investor-level position and value details.

RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM)

CUSIP: 76243J105

Q4 2019 13F Holders as of 31 Dec 2019

Type / Class: Equity / Common Stock
Shares outstanding: 68,385,438
Total 13F shares: 42,379,694
Share change: +8,074,013
Total reported value: $973,032,101
Price per share: $22.96
Number of holders: 89
Value change: +$189,224,828
Number of buys: 60
Number of sells: 28

Quarterly Holders Quick Answers

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

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

Newer quarter: Q1 2020
Previous quarter: Q3 2019

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
NEA Management Company, LLC	13F	Company	7.2%	4,912,306	$106,057,000	—	30 Sep 2019	13F
RA CAPITAL MANAGEMENT, L.P.	13F	Company	5%	3,422,312	$73,888,000	—	30 Sep 2019	13F
JANUS HENDERSON GROUP PLC	13F	Company	5%	3,406,748	$73,552,000	—	30 Sep 2019	13F
MPM ASSET MANAGEMENT LLC	13F	Company	4.5%	3,074,893	$66,387,000	—	30 Sep 2019	13F
BAKER BROS. ADVISORS LP	13F	Company	4%	2,708,200	$58,470,000	—	30 Sep 2019	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	3.8%	2,589,291	$55,903,000	—	30 Sep 2019	13F
BlackRock Finance, Inc.	13F	Company	2.8%	1,939,151	$41,867,000	—	30 Sep 2019	13F
TRV GP, LLC	13F	Company	2.6%	1,781,437	$38,461,000	—	30 Sep 2019	13F
FEDERATED HERMES, INC.	13F	Company	2.1%	1,465,400	$31,638,000	—	30 Sep 2019	13F
VANGUARD GROUP INC	13F	Company	1.9%	1,279,279	$27,620,000	—	30 Sep 2019	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.6%	1,114,347	$24,059,000	—	30 Sep 2019	13F
FMR LLC	13F	Company	1.6%	1,060,319	$22,892,000	—	30 Sep 2019	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.3%	856,324	$18,488,000	—	30 Sep 2019	13F
STATE STREET CORP	13F	Company	1%	717,540	$15,492,000	—	30 Sep 2019	13F
ArrowMark Colorado Holdings LLC	13F	Company	0.8%	543,990	$11,745,000	—	30 Sep 2019	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.46%	317,273	$6,849,000	—	30 Sep 2019	13F
Rock Springs Capital Management LP	13F	Company	0.45%	305,000	$6,585,000	—	30 Sep 2019	13F
NORTHERN TRUST CORP	13F	Company	0.43%	293,086	$6,328,000	—	30 Sep 2019	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.38%	259,514	$5,603,000	—	30 Sep 2019	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	0.36%	246,977	$5,332,000	—	30 Sep 2019	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.35%	240,428	$5,190,000	—	30 Sep 2019	13F
Foresite Capital Management IV, LLC	13F	Company	0.34%	234,482	$5,062,000	—	30 Sep 2019	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.19%	131,216	$2,833,000	—	30 Sep 2019	13F
JPMORGAN CHASE & CO	13F	Company	0.19%	126,544	$2,732,000	—	30 Sep 2019	13F
Bank of New York Mellon Corp	13F	Company	0.12%	85,430	$1,844,000	—	30 Sep 2019	13F
Nuveen Asset Management, LLC	13F	Company	0.11%	73,716	$1,591,000	—	30 Sep 2019	13F
EMORY UNIVERSITY	13F	Company	0.11%	71,856	$1,551,000	—	30 Sep 2019	13F
SG Americas Securities, LLC	13F	Company	0.1%	71,641	$1,547,000	—	30 Sep 2019	13F
ALPS ADVISORS INC	13F	Company	0.1%	68,850	$1,486,000	—	30 Sep 2019	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.09%	64,804	$1,399,000	—	30 Sep 2019	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.08%	51,892	$1,120,000	—	30 Sep 2019	13F
HARBOURVEST PARTNERS LLC	13F	Company	0.07%	50,221	$1,084,000	—	30 Sep 2019	13F
University Of Notre Dame du Lac	13F	Individual	0.07%	44,781	$967,000	—	30 Sep 2019	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.05%	37,610	$812,000	—	30 Sep 2019	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.05%	35,799	$773,000	—	30 Sep 2019	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.05%	35,456	$765,000	—	30 Sep 2019	13F
Swiss National Bank	13F	Company	0.05%	35,200	$760,000	—	30 Sep 2019	13F
UBS Group AG	13F	Company	0.05%	34,972	$755,000	—	30 Sep 2019	13F
HAMILTON LANE ADVISORS LLC	13F	Company	0.05%	34,736	$750,000	—	30 Sep 2019	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	0.05%	34,400	$743,000	—	30 Sep 2019	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.04%	29,117	$629,000	—	30 Sep 2019	13F
Rafferty Asset Management, LLC	13F	Company	0.04%	27,981	$604,000	—	30 Sep 2019	13F
RHUMBLINE ADVISERS	13F	Company	0.04%	25,853	$558,000	—	30 Sep 2019	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.04%	25,000	$540,000	—	30 Sep 2019	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.03%	23,505	$507,000	—	30 Sep 2019	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.03%	23,200	$501,000	—	30 Sep 2019	13F
Squarepoint Ops LLC	13F	Company	0.03%	22,515	$486,000	—	30 Sep 2019	13F
TD ASSET MANAGEMENT INC	13F	Company	0.03%	21,459	$463,000	—	30 Sep 2019	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.02%	16,318	$352,000	—	30 Sep 2019	13F
CITIGROUP INC	13F	Company	0.02%	16,037	$347,000	—	30 Sep 2019	13F

Institutional Holders of RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) as of Q4 2019

As of 31 Dec 2019, RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) was held by 89 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 42,379,694 shares. The largest 10 holders included RA CAPITAL MANAGEMENT, L.P., NEA Management Company, LLC, JANUS HENDERSON GROUP PLC, DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C), WELLINGTON MANAGEMENT GROUP LLP, BAKER BROS. ADVISORS LP, BlackRock Inc., MPM ASSET MANAGEMENT LLC, FEDERATED HERMES, INC., and PRIMECAP MANAGEMENT CO/CA/. This page lists 89 institutional shareholders reporting positions in this security for the Q4 2019 filing period.

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

Compare Q4 2019 vs Q3 2019 Across Filers

Q3 2019 holders

Q4 2019 holders

Holder diff

Investor	Q3 2019 Shares	Q4 2019 Shares	Share Diff	Share Chg %	Q3 2019 Value $	Q4 2019 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.