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Jennifer Kayden Lee

CIK: 0001801372

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)18 (52.9%)

Position reduction

Option Exercises (M)11 (32.4%)

Derivative conversions

Awards (A)4 (11.8%)

Compensation grants

Other (G, F, J, C, D, …)1 (2.9%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

RHYTHM PHARMACEUTICALS, INC. logo
RYTM

RHYTHM PHARMACEUTICALS, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (34 total)

  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Aug 13, 2026
    Exercise(M)
    Direct
    35K shares at avg. $24.29$850K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Aug 13, 2026
    Exercise(M)
    Direct
    21.6K shares at avg. $6.80$147K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Aug 13, 2026
    Sale(S)
    Direct
    75.8K shares at avg. $117.38$8.9M
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 11, 2026
    Award(A)

    Stock Options (Right to Buy)

    Direct
    32.5K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 11, 2026
    Award(A)

    Restricted Stock Units

    Direct
    21.7K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 1, 2026
    Tax Payment(F)
    Direct
    9.2K shares at avg. $108.99$1.0M
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 1, 2026
    Exercise(M)
    Direct
    22.6K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 19, 2025
    Sale(S)
    Direct
    2K shares at avg. $57.22$116K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 16, 2025
    Exercise(M)
    Direct
    5.5K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 14, 2025
    Award(A)

    Restricted Stock Units

    Direct
    36.7K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 14, 2025
    Award(A)

    Stock Options (Right to Buy)

    Direct
    55K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 13, 2025
    Sale(S)
    Direct
    1.2K shares at avg. $58.00$70K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 12, 2025
    Sale(S)
    Direct
    600 shares at avg. $56.39$34K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 12, 2025
    Sale(S)
    Direct
    1.2K shares at avg. $56.39$68K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 12, 2025
    Sale(S)
    Direct
    10 shares at avg. $56.41$564.1
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 11, 2025
    Sale(S)
    Direct
    4 shares at avg. $57.50$230
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 11, 2025
    Exercise(M)
    Direct
    2K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 11, 2025
    Sale(S)
    Direct
    1K shares at avg. $57.51$59K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 10, 2025
    Sale(S)
    Direct
    2.3K shares at avg. $59.34$136K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 10, 2025
    Sale(S)
    Direct
    1.9K shares at avg. $58.39$111K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 9, 2025
    Exercise(M)
    Direct
    3.4K shares-
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 9, 2025
    Exercise(M)
    Direct
    4.2K shares at avg. $6.80$28K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 5, 2025
    Sale(S)
    Direct
    200 shares at avg. $61.95$12K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 5, 2025
    Sale(S)
    Direct
    1.7K shares at avg. $60.08$104K
  • RHYTHM PHARMACEUTICALS, INC. logo
    RYTM

    RHYTHM PHARMACEUTICALS, INC.

    Feb 5, 2025
    Sale(S)
    Direct
    1.1K shares at avg. $61.01$69K

1-25 of 34

About Lee Jennifer Kayden

Lee Jennifer Kayden (SEC CIK 0001801372) files insider reports with the SEC as EVP, Head of North America of RHYTHM PHARMACEUTICALS, INC. (RYTM).

Signal8 holds 9 ownership filings by Lee Jennifer Kayden, all Form 4s, filed between Nov 13, 2024 and Aug 14, 2026. Those filings report 34 transactions, from Nov 11, 2024 to Aug 13, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Lee Jennifer Kayden's filings is in BOSTON, MA.

Recent filings by Lee Jennifer Kayden

  • Aug 13, 2026: Option exercises of RYTM shares (2 lines, Form 4, code M).
  • Aug 13, 2026: Open-market sale of RYTM shares (Form 4, code S).
  • Feb 11, 2026: Grants or awards of RYTM derivative securities (2 lines, Form 4, code A).
  • Feb 1, 2026: Tax withholding of RYTM shares (Form 4, code F).
  • Feb 1, 2026: Option exercise of RYTM shares (Form 4, code M).

Other insiders filing for RHYTHM PHARMACEUTICALS, INC. (RYTM)

How to read Form 4 transaction codes