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Tung Ling Fok Insider Profile

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Tung Ling Fok, Chairman, Ten Percent Owner at Comba Telecom Systems Holdings, holds 713.75M shares in Comba Telecom Systems Holdings (Ticker: COBJF). Most recently, Tung Ling Fok Bought 2,000,000 shares of Comba Telecom Systems Holdings on Sep 23, 2026 for an estimated value of $1.40M.
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Tung Ling Fok

Tung Ling Fok
Comba Telecom Systems Holdings (COBJF)
Chairman, Ten Percent Owner

Ranked #6,478 out of 109,268 Corporate Insiders

Profitable Transactions

43%
10 out of 23 Profitable Transactions

Average Return

+17.60%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$86M
100.00%
A breakdown of Tung Ling Fok's holdings
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Insider Roles

Comba Telecom Systems Holdings
(COBJF)
Chairman, Ten Percent Owner
Roles that Tung Ling Fok holds in companies
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Most Profitable Insider Trade

Stock:
Comba Telecom Systems Holdings
(COBJF)
Rating:Informative Buy
Date:Apr 11, 2024 - Apr 11, 2025
Return:+89.90%
The most profitable trade made by Tung Ling Fok
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Tung Ling Fok's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
COBJF
Comba Telecom Systems Holdings
Sep 23, 2026
Chairman, Ten Percent Owner
Informative Buy
1.40M
$85.65M
Success Rate for
COBJF
10 out of 23 profitable transactions on
COBJF
43%
Average Return for
COBJF
Average return per transaction on
COBJF
+17.68%
Date
Transaction
Amount
No. of Shares
Price per Share
Profit
Link to Report
Jun 07, 2011
Uninformative Buy
HK$0.00
48,875,009
HK$0.00
―
Jul 22, 2011
Informative Buy
HK$10.63M
1,504,500
HK$7.07
―
Jul 25, 2011
Informative Buy
HK$7.95M
1,134,500
HK$7.00
―
Jul 26, 2011
Informative Buy
HK$1.26M
170,000
HK$7.42
―
Aug 30, 2011
Informative Buy
HK$3.17M
519,000
HK$6.11
―
List of latest transactions for each holding click on a transaction to see Tung Ling Fok's performance on stock
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Tung Ling Fok insider profile FAQ

What is the percentage of profitable transactions made by Tung Ling Fok?
The percentage of profitable transactions made by Tung Ling Fok is 43%.
    What is the average return per transaction made by Tung Ling Fok?
    The average return per transaction made by Tung Ling Fok is 17.60%.
      What stocks does Tung Ling Fok hold?
      Tung Ling Fok holds: COBJF stocks.
        What was Tung Ling Fok’s latest transaction?
        Tung Ling Fok latest transaction was an Informative Buy of $1.40M.
          What was Tung Ling Fok's most profitable transaction?
          Tung Ling Fok’s most profitable transaction was an Informative Buy of COBJF stock on April 11, 2024. The return on the trade was 89.90%.
            What is Tung Ling Fok's role in Comba Telecom Systems Holdings?
            Tung Ling Fok's role in Comba Telecom Systems Holdings is Chairman, Ten Percent Owner.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.