RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM)

CUSIP: 76243J105

Q4 2017 13F Holders as of 31 Dec 2017

Type / Class
Equity / Common Stock
Shares outstanding
67,341,788
Total 13F shares
21,624,878
Share change
+17,458,579
Total reported value
$628,421,658
Price per share
$29.06
Number of holders
65
Value change
+$507,347,658
Number of buys
62

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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.

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.
No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.

Institutional Holders of RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) as of Q4 2017

As of 31 Dec 2017, RHYTHM PHARMACEUTICALS, INC. - Common Stock (RYTM) was held by 65 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 21,624,878 shares. The largest 10 holders included NEA Management Company, LLC, TRV GP, LLC, MPM ASSET MANAGEMENT LLC, BAKER BROS. ADVISORS LP, FMR LLC, JANUS HENDERSON GROUP PLC, PERCEPTIVE ADVISORS LLC, DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C), WELLINGTON MANAGEMENT GROUP LLP, and EcoR1 Capital, LLC. This page lists 65 institutional shareholders reporting positions in this security for the Q4 2017 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q4 2017 vs Q4 2025 Across Filers

Q4 2025 holders
276
Q4 2017 holders
65
Holder diff
-211
Investor Q4 2025 Shares Q4 2017 Shares Share Diff Share Chg % Q4 2025 Value $ Q4 2017 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.