Martek Biosciences ( MATK) said it earned $3.43 million, or 11 cents a share, for the second quarter ended April 30, compared with $3.4 million, or 11 cents a share, a year ago. Revenue for the quarter was $55.8 million. Analysts expected 11 cents a share on revenue of $54.8 million, according to Thomson First Call. The stock was up 85 cents, or 2.4%, to $36.20 in after-hours trading.

Cooper Cos. ( COO - Get Report) posted earnings of $29.5 million, or 62 cents a share, for the second quarter ended April 30 compared with $21.7 million, or 61 cents a share, a year ago. Revenue for the quarter was $215.8 million. Excluding certain items, the company earned 81 cents a share. Analysts expected earnings of 74 cents a share on revenue of $214.4 million, according to Thomson First Call. For the third quarter, the company expects to earn 83 cents to 86 cents a share on revenue of $226 million to $231 million, compared with Wall Street's forecast of 85 cents a share on revenue of $235.6 million.

For the full year, the company expects adjusted earnings of $3.18 to $3.24 a share on revenue of $828 million to $837 million, compared with its previous forecast of $3.08 to $3.18 a share on revenue of $840 million to $850 million. The stock was down $3.34, or 5.18%, to $61.10 in after-hours trading.

Atari ( ATAR) announced that James Caparro has resigned as president and CEO, effective immediately. The board appointed Bruno Bonnell, currently its chairman and chief creative officer, as interim CEO until a permanent one is found. The stock was down 34 cents, or 11.56%, to $2.60 in after-hours trading.

Texas Instruments ( TXN - Get Report) announced it now expects to earn 27 cents to 30 cents a share, for the second quarter, compared with its previous forecast of 25 cents to 29 cents a share. The company said it now expects revenue in the range of $3.12 billion to $3.24 billion, vs. the prior range of $3 billion to $3.24 billion. The stock was down 2 cents, or 0.07%, to $27.26 in after-hours trading.

La-Z-Boy ( LZB) reported a profit of $20.8 million, or 40 cents a share, for the fourth quarter ended April 30, vs. a loss of $42.1 million, or 80 cents a share, a year ago. Last year's results included charges for asset impairment and a change in accounting. Revenue for the quarter was $566 million. Income from continuing operations was $18.4 million, or 35 cents a share. Analysts expect a profit of 31 cents a share on revenue of $544.7 million, according to Thomson First Call. The stock was up 40 cents, or 2.89%, to $14.25 in after-hours trading.