Security key
76243J105
RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (RYTM)
CUSIP: 76243J105
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 48,449,400
- Total 13F value
- $483,522,595
- Share change
- +456,467
- SEC-reported price per share
- $9.98
- Number of holders
- 94
- Value change
- -$537,879
- Number of buys
- 46
- Number of sells
- 39
- Shares outstanding
- 69,012,275
Holder snapshot
6 signals
Security identity
1 source field
Report period
Q4 2021
Institutions
94
Top holders
10
RYTM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2022
Previous quarter: Q3 2021
RHYTHM PHARMACEUTICALS, INC. SEC filings
RHYTHM PHARMACEUTICALS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 76243J105
Recent filing periods:
Ownership snapshot
Top reported holders 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. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PRIMECAP MANAGEMENT CO/CA/
Disclosed value leader
PRIMECAP MANAGEMENT CO/CA/
Comparable rows
15/15
Latest evidence
30 Sep 2021
13F
Lead comparable stake: 9%
Showing 1-6 of 15 holder rows.
Quick read
PRIMECAP MANAGEMENT CO/CA/ leads the comparable SEC ownership view at 9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
PRIMECAP MANAGEMENT CO/CA/
9%
NEA Management Company, LLC
7.1%
RA CAPITAL MANAGEMENT, L.P.
7.1%
BAKER BROS. ADVISORS LP
5.6%
BlackRock Finance, Inc.
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ |
13F
Company
|
9%
|
$80,725,000
6,181,091 shares
|
— | 30 Sep 2021 |
| NEA Management Company, LLC |
13F
Company
|
7.1%
|
$64,155,000
4,912,306 shares
|
— | 30 Sep 2021 |
| RA CAPITAL MANAGEMENT, L.P. |
13F
Company
|
7.1%
|
$63,616,000
4,871,067 shares
|
— | 30 Sep 2021 |
| BAKER BROS. ADVISORS LP |
13F
Company
|
5.6%
|
$50,454,000
3,863,239 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
4.9%
|
$43,907,000
3,361,986 shares
|
— | 30 Sep 2021 |
| JANUS HENDERSON GROUP PLC |
13F
Company
|
4.6%
|
$41,562,000
3,182,382 shares
|
— | 30 Sep 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
94
Shares
48,449,400
Rows available
94
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
93
Q4 2021 holders
94
Holder diff
1
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend