Electro Sensors Inc (ELSE)

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Insider Trading: Purchases

Insider	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Swenson	$3.90	1,230	Large Shareholder	403,982	2012-03-07	Filing
Swenson	$3.90	6	Large Shareholder	402,752	2012-02-22	Filing
Swenson	$3.94	1,000	Large Shareholder	402,746	2011-08-23	Filing
Swenson	$3.90	2,529	Large Shareholder	427,613	2012-02-21	Filing
Swenson	$3.90	777	Large Shareholder	425,084	2012-02-17	Filing
Swenson	$3.99	2,199	Large Shareholder	424,307	2011-12-20	Filing
Swenson	$3.87	11,380	Large Shareholder	422,108	2011-11-01	Filing
Swenson	$3.52	14,487	Large Shareholder	410,728	2011-09-27	Filing
Swenson	$4.03	25,254	Large Shareholder	396,241	2011-08-25	Filing
Swenson	$4.50	377	Large Shareholder	370,987	2011-07-11	Filing
Swenson	$4.50	1,806	Large Shareholder	370,610	2011-06-13	Filing
Swenson	$4.63	3,050	Large Shareholder	368,804	2011-06-10	Filing
Swenson	$4.67	14,775	Large Shareholder	365,754	2011-06-08	Filing
Swenson	$4.54	500	Large Shareholder	350,979	2011-06-06	Filing
Swenson	$4.58	1,650	Large Shareholder	350,479	2011-05-26	Filing
Swenson	$4.55	576	Large Shareholder	348,829	2011-05-06	Filing
Swenson	$4.55	3,922	Large Shareholder	348,253	2011-04-29	Filing
Swenson	$4.45	778	Large Shareholder	344,331	2011-04-13	Filing
Swenson	$4.45	1,304	Large Shareholder	343,553	2011-04-12	Filing
Swenson	$4.53	1,300	Large Shareholder	342,249	2011-04-06	Filing