§ BIOTECHNOLOGY
USD · BiotechnologyRYTM
RHYTHM PHARMACEUTICALS INC
USDSector · BiotechnologyBeta · 2.05
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
178 increased/new, 103 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/B | 26.45 | EPS (TTM) | -3.03 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 6.7M | 6.1% | ±0% |
| BlackRock, Inc. | 6.2M | 0.0% | −1% |
| BAKER BROS. ADVISORS LP | 5.6M | 2.8% | ±0% |
| PRIMECAP MANAGEMENT CO/CA/ | 3.4M | 0.2% | −2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.0M | n/a | n/a |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | n/a | n/a |
◇ AC INTELLIGENCE
Top institutional owners for RYTM as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER98.7% · 0 holders
OTHER0.8% · 194 holders
QUALITY / COMPOUNDER0.2% · 26 holders
PASSIVE / INDEX0.1% · 10 holders
DEALER / BANK0.1% · 28 holders
TACTICAL / MACRO0.0% · 5 holders
SYSTEMATIC / QUANT0.0% · 8 holders
INCOME / DEFENSIVE0.0% · 15 holders
GROWTH / MOMENTUM0.0% · 1 holder
ACTIVIST0.0% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for RYTM in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention RYTM yet.