GREENE COUNTY BANCORP INC — Director's Dealing 2012

May 10, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GREENE COUNTY BANCORP INC (GCBC)
CIK: 0001070524
Period of Report: 2012-05-09

Reporting Person: JENKINS DAVID H (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-09	Common Stock	M	2000	$12.50	Acquired	47246	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-09	Stock Options	$12.50	M	2000	Disposed	2018-08-19	Common Stock (2000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4581	Indirect

Footnotes

F1: Includes 2,498 shares purchased through dividend reinvestment plan.

F2: Includes 288 shares purchased through dividend reinvestment plan.

F3: The stock options will vest at a rate of one-third per Company fiscal year assuming certain cumulative earnings performance criteria are met.