Cablevision Systems (CVC

) says the Dolan Family Group proposes to take the company private by acquiring Cablevision's cable and telecommunications businesses. The company says the deal would deliver an estimated $33.50 to public shareholders.

H.J. Heinz (HNZ

) inks a deal with Groupe Danone S.A. to acquire number of leading culinary sauce brands for about $855 million in cash.

Ebay (EBAY

) shares were lower on a Wall Street Journal story suggesting Google (GOOG

) is readying an electronic-payment classifieds service. S&P keeps hold.

Air Canada canceled a $6 billion order for 32 jets from Boeing (BA

).

Interpublic Group (IPG

) was trading far below historic norms compared to earnings and sales. Tim Fidler of Ariel Capital Management thinks Interpublic is worth "somewhere around $17 or $18 per share," according to Barron's Online.

Calpine Corp. (CPN

) prices $650 million of contingent convertible notes due 2015.

Cemex S.A. ADS (CX

) sees $970 million second-quarter EBITDA on $4.4 billion in revenue.

Steelmaker Ipsco (IPS

) says second-quarter earnings per share will be close to $2.45, lower than expected. The company cites increased pricing pressure for steel products and delayed purchase orders.

Transkaryotic Therapies (TKTX

) announced positive top-line results from Phase III clinical trial evaluating its investigational human enzyme replacement therapy, iduronate-2-sulfatase, for treatment of patients with Hunter syndrome.

Shire Pharmaceuticals (SHPGY

) was higher on news Transkaryotic Therapies announces positive results from its Phase III study evaluating iduronate-2-sulfatase. Transkaryotic Therapies agreed to be acquired by Shire in April.

Used-car superstore chain CarMax (KMX

) posted 37 cents, vs. 33 cents, first-quarter earnings per share on a 6% same-store sales rise and 19% total sales rise. The company sees 3% to 9% second-quarter same-store sales growth and 29 cents to 34 cents earnings per share.

SkyePharma PLC (SKYE

) says German pharmaceutical regulatory authority approved Foradil Certihaler for the treatment of asthma and chronic obstructive pulmonary disease.

Office-furniture company Steelcase (SCS

) posted 5 cents first-quarter earnings per share, vs. a 4-cent loss, on a 13% revenue rise. It sees 8 cents to 13 cents second-quarter earnings per share on a 10% to 15% sales rise.

Centex (CTX

) says it is exploring various strategic alternatives regarding its United Kingdom Home Building Group, which operates under the name of Fairclough Homes. Alternatives include a possible sale of this group.

Walter Industries (WLT

) agrees to purchase Mueller Water Products, a privately held supplier of flow control products, for an aggregate value of about $1.91 billion. The company expects the deal to be accretive by 20 cents to 24 cents in the first full year after closing.

Essex (KEYW

) files a shelf registration with the SEC, allowing Essex to issue up to $100 million in stock from time to time.