EASTERN CO — Director's Dealing 2009

Dec 2, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EASTERN CO (EML)
CIK: 0000031107
Period of Report: 2009-12-02

Reporting Person: ROBINSON DAVID C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-05-19	Common Stock	G	5163	—	Acquired	96198	Direct
2009-12-02	Common Stock	F	13669	$13.95	Disposed	82529	Direct
2009-12-02	Common Stock	M	18750	$10.17	Acquired	101279	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2009-12-02	Non-qualified stock options	$10.17	M	18750	Disposed	2010-01-15	Common Stock (18750)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	0	Indirect

Footnotes

F1: In accordance with the Kenneth V. Robinson Trust, on May 19, 2009 the trust was distributed. Mr. David Robinson received
5,163 shares from the trust and is now the direct owner of the shares.

F2: 13,669 shares of previously acquired Eastern Company stock were surrendered to Eastern Treasury at the closing price on
September 29, 2008 of $13.29 per share, for the purchase of stock options.

F3: 18,750 shares were exercised on December 2, 2009 at $10.17 per share. The original 12/15/1999 option was for 12,500 shares at
$15.25 per share. As a result of a 3-for-2 stock split effective 10/18/2006 this option is now 18,750 shares at $10.17 per
share.

F4: The original 12/15/1999 option was for 12,500 shares at $15.25 per share. As a result of a 3-for-2 stock split effective
10/18/2006 this option is now 18,750 shares at $10.17 per share. 18,750 shares were exercised on December 2, 2009, leaving a
zero balance.