Here are the key gainers and losers in the ASX small caps arena at 12 AEDT on Monday:

In the green

US multinational Perkin Elmer is seeking to get its hands on genomic tech RHS (ASX:RHS) — which helped push the Aussie junior biotech up 92 per cent to 27c on Monday morning.

The agreement would see Perkin Elmer take all shares in RHS at 28c per share.

Directors of RHS have recommended shareholders accept the offer.

It followers the acquisition of Viralytics by global pharma Merck last week.

Jat Energy (ASX:JAT) continues its golden run — up 25 per cent to 22.5c.

Today’s share price represents a 250 premium to its re-instatement price of 9c just last week.

Transcendence Technologies (ASX:TTL) gained 23 per cent to 4.7c after announcing it had appointed Digital X (ASX:DCC) as a blockchain advisor to review its current product offerings in supply chain management and self-managed superannuation funds.

Aspire Mining (ASX:AKM) and Centennial Mining (ASX:CTL) were both trading up 22 per cent at 1.1c with no news in the market.

In the red

An increase in losses made investors skittish about daigou retailer AuMake (ASX:AU8).

The china-focused retailer dropped 20 per cent to 30.5c after reporting a $5.8 million loss for the year.

The company’s revenue increased 791 per cent to $9.05 million.

Jayex Healthcare (ASX:JHL) started the week down 20 per cent at 2c with no news in the market.

Pelican Resources (ASX:PEL) was down 20 cents to 1.6c as the market came to terms with the sale of its Cockatoo Island Project.

The move was announced last week, sending its shares down from 2c.

A capital raise for Aurora Labs (ASX:A3D) wasn’t good news for investors — the stock dropping 18 per cent to 81c in morning though still at a premium to its 80c offer price.

The company is looking to raise $8 million to advance development of large format technology in a partnership with the CSIRO, building on its small and medium models.

Investigator Resources (ASX:IVR) was down 16 per cent at 1.5c after revising down its copper target.

No significant copper values were anticipated from three drill holes.

“This implies the drilling has over-stepped any copper-prospective centre to the system, north of and most likely significantly deeper than the recent drilling.”

Investigator said it could no longer undertake sole exploration and would have to start looking for a joint venture partner.