UPDATE 2-UAE shakes up share ownership rules

* Move to boost transparency and disclosure in takeovers

* Need to say if any intention to buy stakes over 30 pct

* UAE lacks takeover code for publicly listed companies

* Analysts say enforcement action needed

(Adds analyst comment, background)

DUBAI, June 12 (Reuters) - Stock ownership rules in the

United Arab Emirates have been overhauled to boost transparency

in the Gulf Arab state's two stock markets and lead to better

disclosure during takeovers.

Enforcing the regulations will be the main challenge for the

Securities and Commodities Authority, analysts said on Tuesday.

While the SCA did not say when the changes come into effect

nor what penalties would apply to infractions, the new rules

will require investors to tell the stock market if they intend

to buy 30 percent of a UAE-listed company and call for detailed

disclosure about ownership in listed companies.

"The board agreed ... to make adjustments to the disclosure

and transparency system in order to develop the legislation

governing the functioning of financial markets," the SCA said.

The move came a month after Abu Dhabi state-owned firm Aabar

Investments quietly accumulated a 20.8 percent-stake in Dubai

contractor Arabtec Holding from the market using

different subsidiaries.

Aabar's chairman - now also Arabtec's chairman - was quoted

by a local newspaper at the time as saying the fund had a 53

percent position. A stock market source told Reuters Aabar owned

53 percent of Arabtec.

The new rules require that an investor pool together all

holdings in a specific company - whether held by family members,

companies and affiliates - and inform the regulator if the

combined ownership is above the five percent mark that normally

triggers mandatory market disclosure.

"It definitely sounds great on paper but will it do enough

to significantly change what is happening now? We will have to

wait and see," said a Dubai-based fund manager, speaking on

condition of anonymity due to the sensitivity of the matter.

Under the guidelines, the SCA can reject transactions if it

deems them to be against the interests of shareholders or the

economy.

The UAE lacks a takeover code which makes mergers of

publicly listed companies difficult. Gauging ownership levels in

listed companies is complicated by cross holdings through

affiliates and separate vehicles which can belong to the same

entity.

"It is a positive initiative and something that the market

really needs but we will have to wait and see how well these

initiatives can be enforced upon," said Mohammed Ali Yasin, an

Abu Dhabi-based capital markets analyst.

"The question also is how do you penalise the institutions

who are not complying with these rules, when are these rules

effective from and what happens to previous such transactions."

Dubai's benchmark index fell 1.0 percent, while

neighbouring Abu Dhabi was down 0.6 percent.

MSCI REVIEW

The UAE, classified as a frontier market by index complier

MSCI, has been seeking an upgrade to emerging market status for

the past three years.

MSCI is expected to decide later this month on the upgrade,

which could attract renewed interest in UAE markets from

long-term investors and global fund managers.

"These kind of steps will go a long way in gaining

recognition from foreign investors and help in the process of

gaining an upgrade," Haissam Arabi, chief executive of Gulfmena

Investments in Dubai said. "It is definitely a sign of markets

maturing in the region and the regulator getting more active."

Calls for more governance and transparency heightened after

the Aabar/Arabtec moves with the construction company's shares

more than doubling this year.

Aabar, which tried to buy Arabtec for $1.7 billion in a

failed 2010 takeover, has not disclosed what its intentions are

with regard to the stock build up and minority investors have

been concerned their interests would be overlooked.

Aabar itself delisted abruptly from the Abu Dhabi stock

market in 2010, causing an uproar among minority investors.

Several regulations have been enacted in the UAE previously

to boost local financial markets but enforcing these laws has

been a challenge for the regulator.

Last year, the UAE postponed draft regulations on its

nascent asset management industry, which were seen as a key step

for investor protection and boosting market confidence, after

market players voiced concerned that some of the proposals

lacked clarity, sources said.

(Additional reporting by Isabel Coles; Editing by Dan Lalor and

Amran Abocar)