--- title: "RHYTHM PHARMACEUTICALS, INC. — Ownership Dossier" canonical: https://whiteintel.dev/entity/fa951071-e445-5c3f-9817-53aaddc9e6a0 json: https://whiteintel.dev/api/public/dossier/fa951071-e445-5c3f-9817-53aaddc9e6a0 identifier: sec:0001649904 jurisdiction: US risk: High source: WhiteIntel corporate-ownership graph --- # RHYTHM PHARMACEUTICALS, INC. **Type:** Company **Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us) **Identifier:** `sec:0001649904` **Risk level:** High **Canonical dossier:** https://whiteintel.dev/entity/fa951071-e445-5c3f-9817-53aaddc9e6a0 **Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fa951071-e445-5c3f-9817-53aaddc9e6a0 ## Ownership & control ### Owners / controllers - **RA CAPITAL MANAGEMENT, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/8d389c12-372a-5782-93b3-6f36e07414df - **RA Capital Healthcare Fund LP** (tenpercentowner) — https://whiteintel.dev/entity/1ef87f50-8834-5b13-90e0-d0c89201e433 - **Kolchinsky Peter** (tenpercentowner) — https://whiteintel.dev/entity/33b3d577-9112-5c40-8586-a27dae0c41d4 - **Shah Rajeev M.** (tenpercentowner) — https://whiteintel.dev/entity/fe8d7e01-c2f7-55ac-b8ce-308630592b3b - **TRV GP, LLC** (tenpercentowner) — https://whiteintel.dev/entity/dbdc2b69-8f5f-53b2-a68b-ade9e71acf14 - **STARR KEVIN P** (tenpercentowner) — https://whiteintel.dev/entity/52504d9b-bfef-558c-bbe6-f0cc1c8a5391 - **THIRD ROCK VENTURES GP, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/f09bbbd5-4f56-532e-8757-ffc49be560ed - **LEVIN MARK J** (tenpercentowner) — https://whiteintel.dev/entity/149b7695-bfdb-5dfc-a061-ec8c3341e6b8 - **TEPPER ROBERT I** (tenpercentowner) — https://whiteintel.dev/entity/6735d721-9604-5a65-8546-0d89eed262a7 - **THIRD ROCK VENTURES LP** (tenpercentowner) — https://whiteintel.dev/entity/caf0a7e2-6dec-593e-92a7-bf445f4bb9f1 - **ORBIMED ADVISORS LLC** (tenpercentownerother) — https://whiteintel.dev/entity/4fe8d3ec-3487-5b04-877d-c8ddaf0718be - **ORBIMED ADVISORS LLC** (tenpercentowner) — https://whiteintel.dev/entity/4fe8d3ec-3487-5b04-877d-c8ddaf0718be - **ORBIMED CAPITAL GP V LLC** (tenpercentowner) — https://whiteintel.dev/entity/82b80e11-e258-5537-b3d0-36aaea404848 - **ORBIMED CAPITAL GP V LLC** (tenpercentownerother) — https://whiteintel.dev/entity/82b80e11-e258-5537-b3d0-36aaea404848 - **KERINS PATRICK J** (tenpercentowner) — https://whiteintel.dev/entity/e5bc5e6b-9ceb-51b7-9e27-6ce1b5425148 - **DEERFIELD PRIVATE DESIGN FUND III, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/596448ff-eaf9-59b5-a0cf-fe45bd0c0970 - **MPM BIOVENTURES V GP LLC** (tenpercentowner) — https://whiteintel.dev/entity/079115a4-3514-507c-9f89-7d671d01f1b1 - **HADLEY HARBOR MASTER INVESTORS (CAYMAN) L.P.** (tenpercentowner) — https://whiteintel.dev/entity/d4eb9485-b70f-5c6e-819e-5bfcc942043e - **EVNIN LUKE** (tenpercentowner) — https://whiteintel.dev/entity/e4d341cd-cb07-58bc-8144-c8413904c78b - **BARRIS PETER J** (tenpercentowner) — https://whiteintel.dev/entity/5371e54f-a6f6-5045-9fad-153ba8905693 - **MPM ASSET MANAGEMENT INVESTORS BV5 LLC** (tenpercentowner) — https://whiteintel.dev/entity/76e124bc-a2be-5135-80f6-9b94d20efadf - **NEA Partners 13, Limited Partnership** (tenpercentowner) — https://whiteintel.dev/entity/ae943a41-4472-5ebe-aec4-4a6e94986aaa - **DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)** (tenpercentownerother) — https://whiteintel.dev/entity/31a5caa4-05d6-5739-b04b-16a6222da289 - **FOLEY TODD** (tenpercentowner) — https://whiteintel.dev/entity/7c9b3d27-6ca3-51aa-b7a0-6c9abceff208 - **BAKER FELIX** (tenpercentowner) — https://whiteintel.dev/entity/980331ac-181f-51ff-b75c-5447c0bf6ce1 - **NEA 13 GP, Ltd** (tenpercentowner) — https://whiteintel.dev/entity/848948ee-dfff-520b-af81-56a78e012e8e - **Flynn James E** (tenpercentownerother) — https://whiteintel.dev/entity/e41579a6-248b-5454-a089-66f9a7c69ae7 - **IPSEN, S.A.** (tenpercentowner) — https://whiteintel.dev/entity/44097625-07bc-5160-be02-d3ee6cb5d0bf - **MPM BIOVENTURES V, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/058515f1-7953-5c23-b2ff-fc43ec326565 - **ISALY SAMUEL D** (tenpercentowner) — https://whiteintel.dev/entity/6eb4d15a-ef6c-5a2e-bed4-48871342f0c0 - **BAKER BROS. ADVISORS LP** (tenpercentowner) — https://whiteintel.dev/entity/26bd064d-55ef-5f6b-92d7-d1994d6318d2 - **NEW ENTERPRISE ASSOCIATES 13 LP** (tenpercentowner) — https://whiteintel.dev/entity/64ef142e-1ed0-560d-9efc-a7e40a33e4ec - **MPM BIOVENTURES V LLC** (tenpercentowner) — https://whiteintel.dev/entity/fa600881-ab9c-5f40-b2f5-ba4658782aad - **BASKETT FOREST** (tenpercentowner) — https://whiteintel.dev/entity/82f90b88-c233-5f52-bc76-4342aaeed466 - **GADICKE ANSBERT** (tenpercentowner) — https://whiteintel.dev/entity/3d6fb5d6-4514-5ca9-bf31-0f4073abbd96 - **PFIZER INC** (tenpercentowner) — https://whiteintel.dev/entity/8a8a97ae-7543-5cb4-93fa-cf7f2fe558aa - **BARRETT M JAMES** (tenpercentowner) — https://whiteintel.dev/entity/0efbda00-b21d-5987-b1ef-8271c841042a - **DEERFIELD CAPITAL LP** (tenpercentownerother) — https://whiteintel.dev/entity/5f3c11a7-c53a-58c1-ba4f-1ad86e04c791 - **VISWANATHAN RAVI** (tenpercentowner) — https://whiteintel.dev/entity/a25c86ac-4e8c-5fa8-adc0-4857b3374eff - **SANDELL SCOTT D** (tenpercentowner) — https://whiteintel.dev/entity/f5d27853-015c-5d89-b453-67c52f1385ee - **Baker Bros. Advisors (GP) LLC** (tenpercentowner) — https://whiteintel.dev/entity/13477129-1a43-5f52-9813-19f9713c632e - **DEERFIELD MGMT III, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/478bf168-cca7-5092-b1be-3cb81cb02e40 - **MOTT DAVID M** (tenpercentowner) — https://whiteintel.dev/entity/1b443508-3cb1-54c7-a742-c952b0695da7 - **BAKER JULIAN** (tenpercentowner) — https://whiteintel.dev/entity/dacbda6b-8969-5d7f-80c8-b04f77dbe37c - **SILVERSTEIN JONATHAN** (tenpercentowner) — https://whiteintel.dev/entity/5972b7ed-b4fa-5a87-b8f8-18d2eae6c7eb - **DEERFIELD SPECIAL SITUATIONS FUND, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/0cd0b0a2-5e73-54c5-be78-49a74fbed3f4 ### UBO chain (walk to the ultimate owner) A **237-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing. ## Get the full, resolved dossier (agent-callable) The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent: ```bash npx -y @whiteintel/mcp-server # then: get_dossier · trace_ownership_path · check_offshore_exposure ``` Or unlock a one-off cited dossier for **RHYTHM PHARMACEUTICALS, INC.** — https://whiteintel.dev/entity/fa951071-e445-5c3f-9817-53aaddc9e6a0 · pricing https://whiteintel.dev/pricing. --- _This is the markdown-for-agents view of the WhiteIntel dossier for **RHYTHM PHARMACEUTICALS, INC.**. Human view: https://whiteintel.dev/entity/fa951071-e445-5c3f-9817-53aaddc9e6a0 · Structured JSON: https://whiteintel.dev/api/public/dossier/fa951071-e445-5c3f-9817-53aaddc9e6a0._ _Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._