The top after-market Nasdaq gainers Monday were Maxwell Technologies Inc., Anaren Inc., MAKO Surgical Corporation, OraSure Technologies Inc. and Hutchinson Technology Inc., while the top after-market Nasdaq losers were Sarepta Therapeutics Inc., Energy Recovery, NIC Inc. and NetGear Inc.

Gainers

Maxwell Technologies Inc. (NASDAQ:MXWL) shares surged 15 percent to $5.75 in post-market trading. The company stock lost 3.47 percent in regular trading Monday.

Anaren Inc. (NASDAQ:ANEN) shares climbed 9.94 percent to $21.56 in post-market trading Monday after Investment firm Vintage Capital Group LLC offered to buy Anaren Inc. for $23 per share in a deal that values the telecommunication components maker at about $300 million.

MAKO Surgical Corporation (NASDAQ:MAKO) shares advanced 6.42 percent to $11.27 in post-market trading. The company stock lost 5.70 percent in regular trading Monday.

OraSure Technologies Inc. (NASDAQ:OSUR) shares gained 6.07 percent to $4.89 in post-market trading. The company stock lost 5.92 percent in regular trading Monday.

Hutchinson Technology Inc. (NASDAQ:HTCH) shares advanced 3.04 percent to $2.89 in post-market trading. The company stock lost 6.35 percent in regular trading Monday.

Losers

Sarepta Therapeutics Inc. (NASDAQ:SRPT) shares declined 6.52 percent to $36.68 in post-market trading. The company announced after the closing bell Monday that the FDA has requested additional information from the existing eteplirsen dataset to inform a decision on the acceptability of this dataset for a New Drug Application filing under the Subpart H Accelerated Approval regulatory pathway.

Energy Recovery Inc (NASDAQ:ERII) shares dropped 5.64 percent to $3.18 in post-market trading. The company stock lost 6.39 percent in regular trading Monday.

NIC Inc. (NASDAQ:EGOV) shares slumped 4.03 percent to $16.92 in post-market trading. The company stock lost 4.70 percent in regular trading Monday.

NetGear Inc. (NASDAQ:NTGR) shares fell 3.95 percent to $29.66 in post-market trading. The company stock lost 3.95 percent in regular trading Monday.