Braden M. Leonard - 04 Dec 2025 Form 4 Insider Report for Adverum Biotechnologies, Inc. (ADVM)

Reporting relationship: 10%+ Owner
Issuer ticker: ADVM
Reported as of: 04 Dec 2025
Net transaction value: -$2,200,372
SEC form: 4
Accepted by SEC: 05 Dec 2025, 18:20:04 UTC
Prior SEC filing: 03 Dec 2025
Next SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: Braden M Leonard

Key filing fact

Braden M. Leonard filed Form 4 for Adverum Biotechnologies, Inc. (ADVM) on 05 Dec 2025.

Key facts

This page summarizes Braden M. Leonard's Form 4 filing for Adverum Biotechnologies, Inc. (ADVM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 05 Dec 2025, 18:20.

Change

Previous filing in this sequence was filed on 03 Dec 2025.
Current net transaction value: -$2,200,372.

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

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001373603 Primary reporting owner

Leonard Braden Michael

Relationship: 10%+ Owner
Address: 65 E CEDAR - SUITE 2, ZIONSVILLE
Signature: Braden M Leonard
Signature date: 05 Dec 2025

Reported non-derivative transactions

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

ADVM transaction

Common Stock

Sale

Transaction value: $2,200,372
Shares: -524,560
Change %: -21%
Price: $4.19
Shares after: 1,958,080
Date: 04 Dec 2025
Ownership: Holdings of BML Investment Partners, L.P.
Footnotes: F1, F2

ADVM holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 191,800
Date: 04 Dec 2025
Ownership: Direct

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

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Braden M. Leonard is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 2 footnotes

Footnote F1

BML Capital Management, LLC ("BML Capital") serves as the general partner of BML Investment Partners, L.P., a Delaware limited partnership (the "Fund"), which is the direct owner of the subject shares. Mr. Leonard is the managing member of BML Capital, and exercises investment and voting control over the subject shares. Accordingly, shares owned directly by the Fund may be regarded as being beneficially owned by Mr. Leonard. Notwithstanding, Mr. Leonard disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

Footnote F2

Represents shares sold in multiple transactions at a price of $4.1947 per share. The reporting person will provide, upon request by the SEC staff, the Issuer or a security holder of the Issuer, full information regarding the transactions at the price sold.