Gulf Marine Services Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

OTCPK:GLMS.F Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
24 Sep 25	BuyUS$27,451	Mansour Al Alami	Individual		129,000	US$0.21

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of GLMS.F?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	2,713,455	0.236%
Public Companies	5,187,976	0.45%
General Public	71,219,986	6.18%
Private Companies	423,492,792	36.8%
Institutions	649,551,803	56.4%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 83.13% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
22.7%	Mzi Holding	261,680,095	US$66.1m	0%	no data
6.86%	Merrill Lynch, Pierce, Fenner & Smith Incorporated	78,990,342	US$20.0m	-2.19%	0.01%
5.96%	Hargreaves Lansdown Asset Management Ltd.	68,651,540	US$17.3m	-3.74%	0.03%
5.26%	Interactive Brokers Group, Inc.	60,653,011	US$15.3m	54.6%	0.22%
4.69%	Dubai World Corporation	54,066,463	US$13.7m	0%	no data
4.6%	Seafox Operations B.V.	52,986,725	US$13.4m	-0.58%	no data
3.42%	UBS Asset Management AG	39,399,748	US$10.0m	-0.98%	no data
3.3%	IG Group Holdings plc	38,021,724	US$9.6m	-1.78%	0.51%
2.98%	Castro Investments Ltd	34,378,680	US$8.7m	0%	no data
2.93%	Barclays Bank Plc	33,709,598	US$8.5m	63.3%	0.01%
2.79%	Aberdeen Group Plc	32,088,967	US$8.1m	-14.2%	no data
2.45%	JP Morgan Asset Management	28,245,825	US$7.1m	0.9%	no data
2.32%	Fiera Capital Corporation	26,731,922	US$6.8m	-29.9%	0.02%
2.17%	Noster Capital, LLP	25,000,000	US$6.3m	0%	72.42%
1.9%	The Goldman Sachs Group, Inc.	21,841,316	US$5.5m	16.3%	no data
1.52%	SNB Capital Company	17,526,936	US$4.4m	-4.43%	no data
1.11%	Integra Asset Management Limited	12,749,632	US$3.2m	0%	100.0%
1.11%	Inversis Valores Y Bolsa Sociedad de Valores, SA	12,734,000	US$3.2m	865%	1.56%
0.82%	EFG-Hermes Asset Management SAE	9,432,290	US$2.4m	-15.1%	5.95%
0.8%	Abu Dhabi Islamic Bank PJSC	9,247,458	US$2.3m	0%	0.34%
0.78%	Barclays PLC	8,963,845	US$2.3m	0%	no data
0.71%	Fidelity International Ltd	8,158,692	US$2.1m	721%	no data
0.68%	BNP Paribas SA	7,823,604	US$2.0m	0%	no data
0.67%	Society of Lloyd's	7,690,000	US$1.9m	0.65%	0.39%
0.61%	Grimpeur Holdings Limited	6,994,264	US$1.8m	-10.2%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/07/23 22:19
End of Day Share Price	2026/07/09 00:00
Earnings	2025/12/31
Annual Earnings	2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Gulf Marine Services PLC is covered by 8 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Nour Sherif	Arqaam Capital Research Offshore S.A.L.
Michael Pickup	Barclays
Fiona Maclean	BofA Global Research