The chief executive of Zinc Media Group PLC (LON:ZIN) David Galan has signalled his confidence in the TV and multimedia producer by buying more than 1.2 million shares in the firm.
The head of finance, Simon Gerra, also bought 219,555 shares in the company.
Shares in Zinc Media gained 11.7% to 0.48p.
Galan now owns a total of 6.4 million shares while Gerra holds 519,955 shares.
The news comes after the company last month reported a 300% jump in first half adjusted underlying earnings to ?0.24mln and a 6.2% increase in revenue to ?9.76mln, boosted by the acquisition of Tern Television.
Oxford Instruments PLC (LON:OXIG) was another high riser after saying it expects to cut net debt for the year.
In a trading update, the high-tech components maker said it expected performance for the full-year to be in line with expectations, with net debt seeing a "strong reduction" against its interim results in November 2017.
Trading in the second half was supported by a growing order book, with the company also expecting cash generation in the year.
Flying Brands Limited (LON:FBDU) said its newly acquired medical imaging software company, Imaging Biometrics (IB), has entered into a distribution agreement with artificial intelligence exchange platform, EnvoyAI.
Shares in Flying Brands rose 12.5% to 4.50p.
IB's medical imaging software IB Neuro, which is used to identify brain tumours, and its Delta T1 mapping algorithm will be available on the EnvoyAI Exchange.
"This partnership with EnvoyAI enables immediate and widespread access to our proven and quantitative imaging biomarkers for neuro radiologists, neuro-oncologist, and neuro surgeons," said Michael Schmainda, chief executive of IB.
Shares in Amiad Water Systems Ltd (LON:AFS) dropped more than 6% to 160p after cutting its full year dividend despite achieving an increase in revenue and profits.
The water treatment and filtration products company cut its dividend to US$0.028 per share for 2017 from US$0.32 the previous year.
Profit before tax jumped 65% to US$5.1mln and revenue rose 6.3% to US$112.3mln, driven by growth in its irrigation business.
The group said it entered into 2018 with a greater number of orders and higher value of backlog than at the same time the prior year.
"As a result, we anticipate reporting full year revenue growth for 2018," said chief executive Dori Ivzori.
Toople PLC (LON:TOOP), which provides telecoms services to small and medium-sized firms, has taken business away from Vodafone PLC (LON:VOD) by signing a contract with an unnamed UK tyre company.
Shares in Toople rose 13% to 0.85p.
Under a two-year contract, Toople will replace Vodafone as the provider of the tyre company's mobile connections, using the O2 network.
The tyre company operates a fleet of mobile service vans for the commercial market.
"It's great to see that the Toople approach of fixed prices and transparent costs has again been attractive and successful in winning a customer from one of the big carriers," Toople's chief executive Andy Hollingworth said.
Flowgroup PLC (LON:FLOW) shares continued to decline a day after announcing it would sell its core energy supply business, Flow Energy Ltd, to rival Co-operative Energy Ltd for ?9.25mln.
Shares plunged 20% to 0.02p.
The company has also agreed to sell its microCHP boiler technology and intellectual property to iGEN Technologies Inc for an upfront cash payment of C$25,000 ( ?14,000) with potential royalty payments of up to C$1.4mln ( ?789,000) upon successful commercialisation of the microCHP technology.
British bicycle maker Tandem Group plc (LON:TND) has hiked its final dividend on the back of profit growth, sending its shares up 21% to 140p.
The company proposed a final dividend of 2.75p, up from 2.60p a year earlier, and operating profit before tax and finance costs rose to ?2.4mln from ?1.3mln.
Revenue fell 4% to ?38.4mln but this was expected following the restructuring of its bicycle operations.
While the group remains cautious about the outlook for 2018, it has secured new licenses including Hatchimals, Jo Jo Siwa, Jurassic World, LOL Surprise, Nella the Princess Knight, Rusty Rivets and Super Wings.
It also expects a strong year from its Kickmaster football brand ahead of the World Cup and predicts a "better performance" from the Ben Sayers golf brand following new developments to the product range for 2018.
Shield Therapeutics PLC (LON:STX) shares declined as it said it expects future sales of its Feraccru iron deficiency tablets to take a hit after cutting promotional activity and jobs to improve its cash position.
The company said it has enough cash resources to fund the business until the end of the fourth quarter after slashing costs following disappointing results from an initial top-line Phase III study of Feraccru in February.
Following feedback from the US Food and Drug Administration regarding what went wrong with the study, the group plans to finalise and submit a New Drug Application to the regulator as "soon a possible".
Shares fell 10.26% to 17.50p.
Universe Group plc (LON:UNG) shares are under pressure after reporting a sharp fall in full year profits after delays to a number of high value contracts hit revenues.
The company, which supplies point of sale, payment and loyalty systems, posted profit after tax of ?0.63mln for 2017 compared to ?1.83mln the previous year.
Revenues fell to ?19.62mln from ?19.71mln, reflecting delays in a small number of customer deployments,
Higher costs resulting from investment in technology and sales personnel to assist product launches also dragged on profits.
Shares dropped 6.8% to 5.12p.
Range Resources PLC (LON:RRL) shares gained more than 22% to 0.28p after saying it has reached an agreement with Colombia's Agencia Nacional de Hidrocarburos (ANH) to settle all outstanding claims and disputes between ANH and the consortium of Optima Oil Corporation and the company.
Previously, in 2016, ANH sought a US$53mln claim in relation to allegations that work commitments weren't fulfilled and that invalid letters of credit had been presented.
Range noted that it has worked with its legal advisers and the consortium partners to reach an acceptable outcome.
The settlement agreement confirms that Range and the consortium have no liability for any payments or debts, and that all proposed penalties have been lifted.
Trafalgar Property Group PLC (LON:TRAF) shares jumped 17% to 1p after announcing it had signed a memorandum of understanding with DIS Partners Holding Luxembourg.
The MoU forms the basis for a potential deal for the development of two assisted living and extra care housing schemes.
The Trafalgar Retirement+ business will construct the sites, which includes about 140 units, subject to receiving planning permissions.
Trafalgar Retirement+ is the new name for Beaufort Homes following Trafalgar's takeover of the business.
DIS, a subsidiary of a Luxembourg-based investment fund, intends to fund and acquire one or both of the sites if a survey it is commissioning reveals they meet its investment criteria.
Air Partner (LON:AIR) shares flew higher after telling investors it still intends to pay a final dividend despite identifying a ?3.3mln accounting error.
The government contractor last week revealed that it would be forced to make a revision to its books after discovering a mistake in the way it accounted for money it was owed from partner businesses going back eight years.
In a statement on Wednesday, the company said it expects the total cumulative impact arising from the accounting blunder will not exceed ?4mln.
It said it intends to pay a final dividend of 3.8p for the year ended January 31, pending a review into the matter, and reaffirmed its commitment to
Shares rose 17.5% to 87p in morning trading.
Flying Brand Ltd's (LON:FBDU) newly-acquired subsidiary, Imaging Biometrics (IB), has inked a distribution agreement with EnvoyAI, an artificial intelligence exchange platform. IB Neuro, which measures blood volume in the brain, and the Delta T1 mapping algorithm, are now available for purchase on the exchange.
Ergomed Plc (LON:ERGO), which provides specialist services to the pharmaceutical industry, enjoyed another year of strong growth in its service business in 2017.
An independent technical report to accompany the recent drilling at Landore Resources Limited's (LON:LND) BAM East gold deposit has indicated 'excellent potential' to expand the size of the resource. Roscoe Postle Associates said there was potential to expand the limits of the deposit at BAM East and to discover zones of additional gold mineralisation along the Junior Lake Shear Zone.
European Metals Holdings Limited (EMH) (LON:EMH) has named Neil Meadows as its chief operating officer, a non-board appointment. The AIM-listed firm said Meadows has previously held the position of chief operating officer at Karara Mining Ltd, managing director of IMX Resources Limited and worked with the Australian Premium Iron Ore Joint Venture on mine infrastructure.
Capital Drilling Limited (LON:CAPD) said it has been awarded a three-year contract with Resolute Mining Limited (ASX:RSG) to provide drilling services in Mali. The drilling solutions company said it would provide surface drilling for exploration and resource development at Resolute's projects and joint venture operations in the West African nation.
Cabot Energy Plc (LON:CAB) told investors that production in April averaged 950 barrels of oil per day, meanwhile, the measure for the first three months of the year averaged 725 bopd. It is anticipated that another 200 bopd of crude production will be brought online through the second quarter. Big Pic in January.
Bushveld Minerals Limited (LON:BMN) said its Bushveld Energy subsidiary has been experiencing increased requests for electrolyte supply and vanadium redox flow battery technology for energy storage projects.
Range Resources Ltd (LON:RRL) told investors it has reached an agreement with Colombia's Agencia Nacional de Hidrocarburos (ANH) to settle all outstanding claims and disputes between ANH and the consortium of Optima Oil Corporation and the company. Previously, in 2016, ANH sought a US$53mln claim in relation to allegations that work commitments weren't fulfilled and that invalid letters of credit had been presented.