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RYTM Insider Trading & Form 4 Activity

RHYTHM PHARMACEUTICALS, INC.
Last filing: Sep 14, 2026·1mo ago· Data may be outdated
NEUTRAL · LAST 90 DAYS
0%
buyers
$0
0 buys
$0
0 sells
$0
net buying
0
insiders
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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Lee Jennifer Kayden
EVP, Head of North America
—
$8.9M
-$8.9M
Mazabraud Yann
EVP, Head of International
—
$6.6M
-$6.6M
Smith Hunter C
Chief Financial Officer
—
$6.6M
-$6.6M
Meeker David P
President and CEO
—
$5.1M
-$5.1M
Garfield Alastair
Chief Scientific Officer
—
$913K
-$913K
Shulman Joseph
Chief Technical Officer
—
$608K
-$608K

Recent transactions

Every Form 4 transaction for RYTM, newest first.

SELL10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
8,698 sh @ $103.43
$900K
SELL10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
30,746 sh @ $102.35
$3.1M
SELL10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
6,439 sh @ $101.75
$655K
EXERCISE10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
50,000 sh @ $6.05
$303K
SELL10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
2,300 sh @ $105.19
$242K
SELL10b5-1
Meeker David P · President and CEO
Tx Sep 14·Filed Sep 14·EDGAR ↗
1,817 sh @ $104.55
$190K
SELL10b5-1
Smith Hunter C · Chief Financial Officer
Tx Aug 31·Filed Sep 1·EDGAR ↗
23,072 sh @ $104.59
$2.4M
SELL10b5-1
Smith Hunter C · Chief Financial Officer
Tx Aug 31·Filed Sep 1·EDGAR ↗
28,188 sh @ $106.20
$3.0M
SELL10b5-1
Smith Hunter C · Chief Financial Officer
Tx Aug 31·Filed Sep 1·EDGAR ↗
11,514 sh @ $105.37
$1.2M
EXERCISE10b5-1
Smith Hunter C · Chief Financial Officer
Tx Aug 31·Filed Sep 1·EDGAR ↗
57,187 sh @ $25.79
$1.5M
SELL10b5-1
Garfield Alastair · Chief Scientific Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
3,400 sh @ $118.28
$402K
SELL10b5-1
Garfield Alastair · Chief Scientific Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
1,556 sh @ $117.08
$182K
SELL10b5-1
Garfield Alastair · Chief Scientific Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
2,007 sh @ $116.11
$233K
SELL10b5-1
Shulman Joseph · Chief Technical Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
5,079 sh @ $119.75
$608K
EXERCISE10b5-1
Shulman Joseph · Chief Technical Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
2,024 sh @ $6.80
$14K
SELL10b5-1
Garfield Alastair · Chief Scientific Officer
Tx Aug 13·Filed Aug 17·EDGAR ↗
800 sh @ $119.17
$95K
EXERCISE10b5-1
Lee Jennifer Kayden · EVP, Head of North America
Tx Aug 13·Filed Aug 14·EDGAR ↗
21,601 sh @ $6.80
$147K
SELL10b5-1
Lee Jennifer Kayden · EVP, Head of North America
Tx Aug 13·Filed Aug 14·EDGAR ↗
75,834 sh @ $117.38
$8.9M
EXERCISE10b5-1
Lee Jennifer Kayden · EVP, Head of North America
Tx Aug 13·Filed Aug 14·EDGAR ↗
35,000 sh @ $24.29
$850K
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
3,605 sh @ $114.70
$413K
EXERCISE10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
46,625 sh @ $6.80
$317K
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
2,300 sh @ $111.80
$257K
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
1,000 sh @ $112.86
$113K
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
14,568 sh @ $115.43
$1.7M
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
18,208 sh @ $116.49
$2.1M
SELL10b5-1
Mazabraud Yann · EVP, Head of International
Tx Aug 12·Filed Aug 14·EDGAR ↗
17,319 sh @ $117.47
$2.0M
EXERCISE
Garfield Alastair · Chief Scientific Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
4,445 sh
—
TAX
Garfield Alastair · Chief Scientific Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
2,150 sh @ $110.41
$237K
EXERCISE
Arbuckle Stuart A · Insider
Tx Jun 23·Filed Jun 25·EDGAR ↗
4,712 sh
—
EXERCISE
Jean Christophe · Insider
Tx Jun 23·Filed Jun 25·EDGAR ↗
4,712 sh
—
EXERCISE
Tetrault Lynn A. · Insider
Tx Jun 23·Filed Jun 25·EDGAR ↗
4,712 sh
—
EXERCISE
Good Jennifer L · Insider
Tx Jun 23·Filed Jun 25·EDGAR ↗
4,712 sh
—
EXERCISE
Mcgirr David W J · Insider
Tx Jun 23·Filed Jun 25·EDGAR ↗
4,712 sh
—
EXERCISE10b5-1
Tetrault Lynn A. · Insider
Tx Jun 22·Filed Jun 24·EDGAR ↗
37,000 sh @ $28.27
$1.0M
SELL10b5-1
Tetrault Lynn A. · Insider
Tx Jun 22·Filed Jun 24·EDGAR ↗
37,000 sh @ $100.32
$3.7M
EXERCISE
Smith Hunter C · Chief Financial Officer
Tx May 18·Filed May 20·EDGAR ↗
3,000 sh @ $17.87
$54K
SELL
German Christopher Paul · Corporate Controller & CAO
Tx May 15·Filed May 19·EDGAR ↗
4,643 sh @ $92.21
$428K
EXERCISE
German Christopher Paul · Corporate Controller & CAO
Tx May 15·Filed May 19·EDGAR ↗
1,406 sh @ $17.97
$25K
EXERCISE
German Christopher Paul · Corporate Controller & CAO
Tx May 15·Filed May 19·EDGAR ↗
1,349 sh @ $49.23
$66K
EXERCISE
German Christopher Paul · Corporate Controller & CAO
Tx May 15·Filed May 19·EDGAR ↗
1,687 sh @ $56.69
$96K

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About RYTM insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for RYTM from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying RYTM always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on RHYTHM PHARMACEUTICALS, INC. (RYTM) when they form.

Where does RYTM insider trading data come from?

Every Form 4 filing for RYTM is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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