CASTLEBERRY JOHN K

Pres. & CEO of WBI Hold., Inc. at MDU RESOURCES GROUP INC · on record since Feb 17, 2004
Pres. & CEO of WBI Hold., Inc. at MDU RESOURCES GROUP INC · on record since Feb 22, 2005

Insider trading activity of CASTLEBERRY JOHN K

Transactions on record: 38; since Feb 17, 2004

Open-market buys: 0

Open-market sells: 16; $3.8M

Companies traded: 1; last filing Feb 20, 2007

Figures computed from official regulatory filings — .

Companies where CASTLEBERRY JOHN K has traded

MDU RESOURCES GROUP INC38 tx · $6.6M · Feb 20, 2007

Track record of CASTLEBERRY JOHN K

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

Transaction history of CASTLEBERRY JOHN K

Co-insiders of CASTLEBERRY JOHN K

ALBERTSON BRUCE RMDU RESOURCES GROUP INC
ANDERSON DARREL TMDU RESOURCES GROUP INC
Barney David CMDU RESOURCES GROUP INC
Barth Stephanie AMDU RESOURCES GROUP INC
Bietz Steven LMDU RESOURCES GROUP INC
Boese Dyke A.MDU RESOURCES GROUP INC
Carmona-Alvarez GermanMDU RESOURCES GROUP INC
CHRISTOPHERSON CATHLEEN MMDU RESOURCES GROUP INC
Connors William RMDU RESOURCES GROUP INC
DELLA ROCCA MICHAELMDU RESOURCES GROUP INC
Del Vecchio Mark AMDU RESOURCES GROUP INC
Dosch Vernon A.MDU RESOURCES GROUP INC
DURKIN MARIAN MMDU RESOURCES GROUP INC
EVERIST THOMAS SMDU RESOURCES GROUP INC
Fagg Karen BMDU RESOURCES GROUP INC
Foti Anthony DonaldMDU RESOURCES GROUP INC
FRITZ MARTIN AMDU RESOURCES GROUP INC
Gatzemeier PaulMDU RESOURCES GROUP INC
Gemmel James H.MDU RESOURCES GROUP INC
Goodin David LMDU RESOURCES GROUP INC
Gray Brian R.MDU RESOURCES GROUP INC
Haider Dennis LMDU RESOURCES GROUP INC
Harp John GMDU RESOURCES GROUP INC
Hastings Trevor JMDU RESOURCES GROUP INC
HELLERSTEIN MARK AMDU RESOURCES GROUP INC
HILDESTAD TERRY DMDU RESOURCES GROUP INC
Holaday A BartMDU RESOURCES GROUP INC
Imsdahl Bruce TMDU RESOURCES GROUP INC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MDU RESOURCES GROUP INCListing on record	Feb 20, 2007	Other	-5,042	26.08	$131.5K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 20, 2007	Award	16,109	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2006	Other	-2,317	34.65	$80.3K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2006	Award	4,570	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Sell	-6,800	28.00 USD	$190.4K		SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Other	-22,009.67	27.89 USD	$613.8K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Other	-357.05	27.89 USD	$10K		SEC
MDU RESOURCES GROUP INCListing on record	May 18, 2005	Sell	-14,174	27.75 USD	$393.3K		SEC
MDU RESOURCES GROUP INCListing on record	May 17, 2005	Sell	-20,974	27.50 USD	$576.8K		SEC
MDU RESOURCES GROUP INCListing on record	May 13, 2005	Sell	-5,346	28.15 USD	$150.5K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Other	-683	27.68 USD	$18.9K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Other	-1,557	27.68 USD	$43.1K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Award	4,880	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	25,000	19.83 USD	$495.7K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-25,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	20,000	19.83 USD	$396.5K		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-25,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-20,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-25,000	26.83 USD	$670.8K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-20,000	26.85 USD	$537K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	25,000	19.83 USD	$495.7K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-25,000	26.70 USD	$667.5K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	Sell	-400	24.85 USD	$9.9K		SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	ExerciseD (derivative)	-1,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	Exercise	1,100	19.83 USD	$21.8K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MDU RESOURCES GROUP INCListing on record	Feb 20, 2007	Other	-5,042	26.08	$131.5K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 20, 2007	Award	16,109	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2006	Other	-2,317	34.65	$80.3K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2006	Award	4,570	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Sell	-6,800	28.00 USD	$190.4K		SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Other	-22,009.67	27.89 USD	$613.8K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	May 20, 2005	Other	-357.05	27.89 USD	$10K		SEC
MDU RESOURCES GROUP INCListing on record	May 18, 2005	Sell	-14,174	27.75 USD	$393.3K		SEC
MDU RESOURCES GROUP INCListing on record	May 17, 2005	Sell	-20,974	27.50 USD	$576.8K		SEC
MDU RESOURCES GROUP INCListing on record	May 13, 2005	Sell	-5,346	28.15 USD	$150.5K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Other	-683	27.68 USD	$18.9K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Other	-1,557	27.68 USD	$43.1K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2005	Award	4,880	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	25,000	19.83 USD	$495.7K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-25,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	20,000	19.83 USD	$396.5K		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-25,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	ExerciseD (derivative)	-20,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-25,000	26.83 USD	$670.8K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-20,000	26.85 USD	$537K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Exercise	25,000	19.83 USD	$495.7K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 24, 2004	Sell	-25,000	26.70 USD	$667.5K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	Sell	-400	24.85 USD	$9.9K		SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	ExerciseD (derivative)	-1,100	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Aug 24, 2004	Exercise	1,100	19.83 USD	$21.8K		SEC