Jennifer Kayden Lee

CIK 1801372 · EVP, Head of North America · last filed 2026-08-14

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$5.35M

Companies

2

Total Filings

42

Lifetime Open-Market Net

-$16.94M

Filer Profile

Reported Address
C/O RHYTHM PHARMACEUTICALS
222 BERKELEY STREET, SUITE 1200
BOSTON, MA 02116
Formerly Known As
Chien Jennifer (2020–2023)
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
RYTM EVP, Head of North America 54,233 $98.66 $5.35M -$16.94M 27 2026-08-14
KRYS Chief Commercial Officer — $345.82 — $0 1 2020-02-04

Recent Filings · Page 4 of 5

42 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2023-08-09 RYTM Notice (144) −1,718 -$42.4K EDGAR
2023-08-09 RYTM Mixed −2,632 -$243.6K EDGAR
2023-08-07 RYTM Notice (144) −11,223 -$274.3K EDGAR
2023-02-14 RYTM Mixed +1,396 -$17.1K EDGAR
2023-02-14 RYTM Sell (S) −1,204 -$33.1K EDGAR
2023-02-13 RYTM Mixed +2,246 -$33.0K EDGAR
2023-02-03 RYTM Grant (A) — $0 EDGAR
2022-02-15 RYTM Mixed +1,310 -$4.4K EDGAR
2022-02-11 RYTM Grant (A) — $0 EDGAR
2021-02-16 RYTM Grant (A) — $0 EDGAR
Showing 31–40 of 42
Page 4 of 5
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.