Adage Capital Management, L.P. - 18 Aug 2025 Form 3 Insider Report for Praxis Precision Medicines, Inc. (PRAX)

Reporting relationship: 10%+ Owner
Issuer ticker: PRAX
Reported as of: 18 Aug 2025
Net transaction value: $0
SEC form: 3
Accepted by SEC: 19 Aug 2025, 16:10:13 UTC
Prior SEC filing: 19 Feb 2025
Next SEC filing: 17 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Adage Capital Management, L.P.; By: its general partner Adage Capital Partners LLC; By its managing member Robert Atchinson

Key filing fact

Adage Capital Management, L.P. filed Form 3 for Praxis Precision Medicines, Inc. (PRAX) on 19 Aug 2025.

Key facts

This page summarizes Adage Capital Management, L.P.'s Form 3 filing for Praxis Precision Medicines, Inc. (PRAX).
0 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 19 Aug 2025, 16:10.

Change

Previous filing in this sequence was filed on 19 Feb 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (3)

CIK 0001535978 Primary reporting owner

Adage Capital Management, L.P.

Relationship: 10%+ Owner
Address: 200 CLARENDON STREET, 52ND FLOOR, BOSTON
Signature: /s/ Adage Capital Management, L.P.; By: its general partner Adage Capital Partners LLC; By its managing member Robert Atchinson
Signature date: 19 Aug 2025

CIK 0001403404

Atchinson Robert

Relationship: 10%+ Owner
Address: 200 CLARENDON STREET, 52ND FLOOR, BOSTON
Signature: /s/ Robert Atchinson
Signature date: 19 Aug 2025

CIK 0001403413

Gross Phillip

Relationship: 10%+ Owner
Address: 200 CLARENDON STREET, 52ND FLOOR, BOSTON
Signature: /s/ Phillip Gross
Signature date: 19 Aug 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PRAX holding

Title of Security (Instr. 4)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,374,085
Date: 18 Aug 2025
Ownership: See footnotes
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The securities to which this filing relates are held directly by Adage Capital Partners, L.P., a Delaware limited partnership ("ACP"). Adage Capital Management, L.P., a Delaware limited partnership ("ACM"), serves as the investment manager of ACP and as such has discretion over the portfolio securities held by ACP. Robert Atchinson and Phillip Gross are the managing members of (i) Adage Capital Advisors, L.L.C., a Delaware limited liability company, managing member of Adage Capital Partners GP, L.L.C., a Delaware limited liability company, general partner of ACP and (ii) Adage Capital Partners LLC, a Delaware limited liability company, general partner of ACM.

Footnote F2

Each of the reporting persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except as to such extent of such reporting person's pecuniary interest in the securities, if any.