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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Mattituck Gun Club Inc. John Seponowski

John Seponowski

Board Member at Mattituck Gun Club Inc.

Fiscal year ended December 31, 2016. Published on January 24, 2026.

$0

2016

Total compensation

John Seponowski has been listed as an employee of Mattituck Gun Club Inc. in Form 990 filings since at least fiscal year 2016.

Annual compensation details

$0

Board Member

2016

Compare the compensation of John Seponowski to:

2016

Other employees at Mattituck Gun Club Inc.

Anthony Santangello

Daniel R Battaglia

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January 24, 2026:

2016 Mattituck Gun Club Inc. 990 published

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