Charles S. Theofilos - 12 May 2025 SCHEDULE 13D/A Report for electroCore, Inc. Common Stock, par value $0.001 per share (ECOR)

Filing manager: Charles S. Theofilos
Reporting owner: Theofilos Charles Steve
Security: electroCore, Inc. Common Stock, par value $0.001 per share
Beneficially owned shares: 444,530 shares
Large-stake signal: Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Ownership
6%
Beneficial ownership of this reported class.
Shares
444,530 shares
Shares beneficially owned as disclosed.
Event date
12 May 2025
Date tied to the ownership event or amendment.
Accepted by SEC
14 May 2025
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership: 6%
Symbol: ECOR
Shares outstanding: 7,408,833 shares
SEC form: SCHEDULE 13D/A
Accepted by SEC: 14 May 2025, 18:09:06 UTC
Event date: 12 May 2025
Prior SEC filing: 24 Mar 2025
Next SEC filing: 09 Jul 2025
Source filing: View source filing

Key filing fact

Charles S. Theofilos disclosed 6% ownership in electroCore, Inc. Common Stock, par value $0.001 per share (ECOR) on 12 May 2025.

Key facts

Charles S. Theofilos filed SCHEDULE 13D/A for electroCore, Inc. Common Stock, par value $0.001 per share (ECOR).
Disclosed ownership: 6%.
Date of event: 12 May 2025.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Sole voting power	Shared voting power	Signature	Title	CIK
Theofilos Charles Steve	6%	444,530	358,557	85,973	/s/ Charles S. Theofilos	Charles S. Theofilos	0002003243
Kathryn Theofilos	5.2%	396,917	8,556	388,361	/s/ Kathryn Theofilos	Kathryn Theofilos
Happy Holstein Management, LLC	4%	301,598	0	301,598	/s/ Kathryn Theofilos	Kathryn Theofilos, Manager
James Theofilos	0%	1,391	1,391	0	/s/ James Theofilos	James Theofilos

CIK / CUSIP context first

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