SHERWIN JOHN JR

Director at MATERION Corp · on record since May 4, 2006
Director at MARTEN TRANSPORT LTD · on record since May 9, 2011
Director at KEITHLEY INSTRUMENTS INC · on record since Feb 18, 2004

Insider trading activity of SHERWIN JOHN JR

Transactions on record: 51; since Feb 18, 2004

Open-market buys: 0

Open-market sells: 11; $674.3K

Companies traded: 3; last filing Mar 7, 2013

Figures computed from official regulatory filings — .

Companies where SHERWIN JOHN JR has traded

MARTEN TRANSPORT LTD8 tx · $325.8K · Mar 7, 2013
MATERION Corp41 tx · $1.2M · Nov 10, 2010
KEITHLEY INSTRUMENTS INC2 tx · Feb 18, 2004

Track record of SHERWIN JOHN JR

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of SHERWIN JOHN JR

Co-insiders of SHERWIN JOHN JR

KEITHLEY JOSEPH PKEITHLEY INSTRUMENTS INC +2
REDDY N MOHANKEITHLEY INSTRUMENTS INC +2
Chadwick Shelly MarieMARTEN TRANSPORT LTD +1
Chemnitz Gregory R.MARTEN TRANSPORT LTD +1
Fashinpaur Melissa AMARTEN TRANSPORT LTD +1
GRAMPA JOHN DMARTEN TRANSPORT LTD +1
Hipple Richard JMARTEN TRANSPORT LTD +1
KHILNANI VINOD MMARTEN TRANSPORT LTD +1
LAWRENCE WILLIAM BMARTEN TRANSPORT LTD +1
LIGGETT EMILY MMARTEN TRANSPORT LTD +1
MADAR WILLIAM PMARTEN TRANSPORT LTD +1
PHILLIPPY ROBERT JMARTEN TRANSPORT LTD +1
Prevost Patrick M.MARTEN TRANSPORT LTD +1
ROBERTSON WILLIAM RMARTEN TRANSPORT LTD +1
SHULAR CRAIG SMARTEN TRANSPORT LTD +1
SKOCH DANIEL AMARTEN TRANSPORT LTD +1
Solomon Darlene J. S.MARTEN TRANSPORT LTD +1
Toth Robert BMARTEN TRANSPORT LTD +1

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MARTEN TRANSPORT LTDListing on record	Mar 7, 2013	Award	19.25	27.96 USD	$538.2		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	25.89	20.72 USD	$536.4		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	24.88	21.41 USD	$532.7		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	25.33	21.10 USD	$534.5		SEC
MARTEN TRANSPORT LTDListing on record	Nov 26, 2012	Other	-5,991	19.60 USD	$117.4K		SEC
MARTEN TRANSPORT LTDListing on record	May 3, 2012	Award	2,654	24.50 USD	$65K		SEC
MARTEN TRANSPORT LTDListing on record	Aug 3, 2011	Sell	-2,244	33.94 USD	$76.2K		SEC
MARTEN TRANSPORT LTDListing on record	May 9, 2011	Award	1,712	37.98 USD	$65K	Unusual size	SEC
MATERION CorpListing on record	Nov 10, 2010	Sell	-4,000	36.25 USD	$145K		SEC
MATERION CorpListing on record	Nov 8, 2010	Other	-4,000	36.25 USD	$145K		SEC
MATERION CorpListing on record	Nov 8, 2010	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MATERION CorpListing on record	Nov 8, 2010	Award	2,000	16.10 USD	$32.2K		SEC
MATERION CorpListing on record	Nov 8, 2010	Award	2,000	20.64 USD	$41.3K		SEC
MATERION CorpListing on record	Nov 8, 2010	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MATERION CorpListing on record	May 10, 2010	Award	2,244	26.74	$60K	Unusual size	SEC
MATERION CorpListing on record	May 13, 2009	Other	-600	15.60	$9.4K		SEC
MATERION CorpListing on record	May 13, 2009	Other	-798	15.60	$12.4K		SEC
MATERION CorpListing on record	May 8, 2009	Award	2,464	18.27	$45K		SEC
MATERION CorpListing on record	May 13, 2008	Award	1,398	32.19	$45K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-890	45.20	$40.2K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-600	45.16	$27.1K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-1,510	45.15	$68.2K		SEC
MATERION CorpListing on record	May 3, 2007	Award	979	46.01	$45K	Unusual size	SEC
MATERION CorpListing on record	Feb 16, 2007	Sell	-100	44.44	$4.4K		SEC
MATERION CorpListing on record	Feb 16, 2007	Sell	-900	44.38	$39.9K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MARTEN TRANSPORT LTDListing on record	Mar 7, 2013	Award	19.25	27.96 USD	$538.2		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	25.89	20.72 USD	$536.4		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	24.88	21.41 USD	$532.7		SEC
MARTEN TRANSPORT LTDListing on record	Feb 6, 2013	Award	25.33	21.10 USD	$534.5		SEC
MARTEN TRANSPORT LTDListing on record	Nov 26, 2012	Other	-5,991	19.60 USD	$117.4K		SEC
MARTEN TRANSPORT LTDListing on record	May 3, 2012	Award	2,654	24.50 USD	$65K		SEC
MARTEN TRANSPORT LTDListing on record	Aug 3, 2011	Sell	-2,244	33.94 USD	$76.2K		SEC
MARTEN TRANSPORT LTDListing on record	May 9, 2011	Award	1,712	37.98 USD	$65K	Unusual size	SEC
MATERION CorpListing on record	Nov 10, 2010	Sell	-4,000	36.25 USD	$145K		SEC
MATERION CorpListing on record	Nov 8, 2010	Other	-4,000	36.25 USD	$145K		SEC
MATERION CorpListing on record	Nov 8, 2010	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MATERION CorpListing on record	Nov 8, 2010	Award	2,000	16.10 USD	$32.2K		SEC
MATERION CorpListing on record	Nov 8, 2010	Award	2,000	20.64 USD	$41.3K		SEC
MATERION CorpListing on record	Nov 8, 2010	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MATERION CorpListing on record	May 10, 2010	Award	2,244	26.74	$60K	Unusual size	SEC
MATERION CorpListing on record	May 13, 2009	Other	-600	15.60	$9.4K		SEC
MATERION CorpListing on record	May 13, 2009	Other	-798	15.60	$12.4K		SEC
MATERION CorpListing on record	May 8, 2009	Award	2,464	18.27	$45K		SEC
MATERION CorpListing on record	May 13, 2008	Award	1,398	32.19	$45K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-890	45.20	$40.2K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-600	45.16	$27.1K		SEC
MATERION CorpListing on record	Aug 30, 2007	Sell	-1,510	45.15	$68.2K		SEC
MATERION CorpListing on record	May 3, 2007	Award	979	46.01	$45K	Unusual size	SEC
MATERION CorpListing on record	Feb 16, 2007	Sell	-100	44.44	$4.4K		SEC
MATERION CorpListing on record	Feb 16, 2007	Sell	-900	44.38	$39.9K		SEC