WAVEMAN · COMPANY

RYTM · Rhythm Pharmaceuticals, Inc.

LIVE

TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

← ALL COMPANIES

RYTM

Name: RHYTHM PHARMACEUTICALS, INC. (RYTM) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

RHYTHM PHARMACEUTICALS, INC.

PHARMA & BIOTECH · PHARMACEUTICAL PREPARATIONS · CIK 0001649904

FORM 144 · 8☆ WATCH

INSIDER NET · 180D

-$27.8M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

172

13F, latest reported quarter

REVENUE GROWTH

+45.8%

XBRL, annual

NET MARGIN

-103.6%

CONVERSIONS · 180D

codes C/M, not in net · $4.1M priced

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$27.8M over 180 days

-$27.4M over 90 days

below 91% of Pharma & Biotech

CONGRESS

no member of Congress has reported trading it

FUNDS

172 funds added or opened last quarter

more than 83% of Pharma & Biotech

REVENUE

+45.8% year over year

more than 77% of Pharma & Biotech

MARGIN

-103.6% net margin

below 66% of Pharma & Biotech

BUYBACKS

no share repurchases reported

SHORT

no short interest reported

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$27.8M across 7 people in 180 days.

172 funds added or opened positions in the latest 13F quarter, of 307 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +1.2%

+1.2%12M

INSIDER SELLFORM 144

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders have filed to sell — before selling.

The record shows a net $27.8M sold by insiders over 180 days, 172 funds added last quarter, $28.9M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

UTHR CPIX MRNA REGN LLY ALNY ELF CITR MDGL DNA VRTX NUVL

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, RHYTHM PHARMACEUTICALS, INC. insiders sold a net $27.8M of stock across 220 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

Smith Hunter C

Chief Financial Officer

SELL

2026-08-31

23,072.0

$2.4M

Smith Hunter C

Chief Financial Officer

SELL

2026-08-31

11,514.0

$1.2M

Smith Hunter C

Chief Financial Officer

SELL

2026-08-31

28,188.0

$3.0M

Lee Jennifer Kayden

EVP, Head of North America

SELL

2026-08-13

75,834.0

$8.9M

Garfield Alastair

Chief Scientific Officer

SELL

2026-08-13

2,007.0

$233.0K

220 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 215 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

RA CAPITAL MANAGEMENT, L.P.

6,666,837.0 sh

$740.2M

BlackRock, Inc.

6,156,902.0 sh

$683.6M

BAKER BROS. ADVISORS LP

5,604,483.0 sh

$622.3M

PRIMECAP MANAGEMENT CO/CA/

3,168,853.0 sh

$351.8M

VANGUARD PORTFOLIO MANAGEMENT LLC

3,136,895.0 sh

$348.3M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

Planned sales · Form 144

Filed before the sale — intent, not a trade

HUNTER SMITH

FILED 2026-08-31

$6.7M

ALASTAIR GARFIELD

FILED 2026-08-13

$912.9K

Jennifer Kayden Lee

FILED 2026-08-13

$8.9M

JOSEPH J SHULMAN

FILED 2026-08-13

$597.3K

YANN MAZABRAUD

FILED 2026-08-12

$6.4M

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Harbor Health Care ETF

$1.0M POSITION · AS OF 2026-04-30

3.8%

PRIMECAP Odyssey Aggressive Growth Fund

$172.8M POSITION · AS OF 2026-04-30

2.5%

AlphaCentric Life Sciences and Healthcare Fund

$808.6K POSITION · AS OF 2026-03-31

2.1%

Federated Hermes Kaufmann Small Cap Fund

$48.2M POSITION · AS OF 2026-04-30

1.7%

PRIMECAP Odyssey Growth Fund

$89.1M POSITION · AS OF 2026-04-30

1.6%

Harbor Human Capital Factor US Small Cap ETF

$2.5M POSITION · AS OF 2026-04-30

1.6%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Clinical pipeline

ClinicalTrials.gov · 21 registered trials, 5 still enrolling or running — a status change here is dated weeks before the press release

Phase 2

2 ACTIVE

Phase 3

2 ACTIVE

Phase 4

0 ACTIVE

Multi-phase

1 ACTIVE

TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED

Executive pay vs shareholder return · David P. Meeker

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$17.5M

$54.2M

$5.6M

+260%

-6%

2024

$14.7M

$18.7M

$4.6M

+88%

-7%

2023

$7.2M

$19.0M

$2.0M

+55%

-6%

2022

$3.3M

$24.1M

$1.1M

-2%

-10%

2021

$6.5M

-$10.0M

$2.1M

-66%

+0%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$189.8M	$130.1M	$77.4M	$23.6M
OPERATING INCOME	$-192.0M	$-265.5M	$-184.4M	$-179.2M
NET INCOME	$-196.5K	$-260.6K	$-184.7K	$-181.1K
EPS (DILUTED)	-3.11	-4.34	-3.20	-3.47
OPERATING CASH FLOW	$-115.7M	$-113.9M	$-136.2M	$-173.4M
CASH	$54.3M	$89.1M	$60.1M	$127.7M
LONG-TERM DEBT	$100.9M	$108.3M	$106.1M	—

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE