Mitchel Berger
CIK: 0002103126
Transaction Breakdown
Open Market Buys (P)0
High conviction signal
Open Market Sales (S)0
Position reduction
Option Exercises (M)0
Derivative conversions
Awards (A)0
Compensation grants
Other (G, F, J, C, D, …)0
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
PLYX
Polaryx Therapeutics, Inc.
Director
Discretionary Trading P&L
Holdings
Transaction History (0 total)
1 Form 3 filing on record — initial statements of ownership, which report holdings, not trades. No Form 4 or Form 5 transactions since Sep 2024.
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| 1 Form 3 filing on record — initial statements of ownership, which report holdings, not trades. No Form 4 or Form 5 transactions since Sep 2024. | ||||||
0-0 of 0 transactions
About Berger Mitchel
Berger Mitchel (SEC CIK 0002103126) files insider reports with the SEC as Director of Polaryx Therapeutics, Inc. (PLYX).
Signal8 holds 1 ownership filing by Berger Mitchel, a Form 3, filed on Jan 29, 2026. A Form 3 is an initial statement of ownership: it reports holdings, not trades, so no Form 4 or Form 5 transactions are on record since Sep 2024.
The business address on Berger Mitchel's filings is in PARAMUS, NJ.
Other insiders filing for Polaryx Therapeutics, Inc. (PLYX)
- Yang Alex Keun Mo, Chief Executive Officer
- Landis G. Michael, Chief Financial Officer
- Braun III Francis A, Director
- Bollinger Lisa, Chief Medical Officer
- Ryan Charles S., Director
- O Andrew John, Chief Investment Officer