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ISDN Holdings Ltd. Stock: price and insider trades · Hong Kong

HK·Mcap HK$1.8B

2 insiders bought shares over the last 90 days, the latest by Teo Cher Koon, filed 28 Aug 2026.

ISDN Holdings Ltd.: what insiders have been doing

This page follows insider dealings at ISDN Holdings Ltd. as filed with HKEX. In the past year (19 October 2025 to 19 October 2026), 9 filings came from 3 insiders.

On the market, 2 insiders bought (2 purchases) while 2 insiders sold (7 sales totalling €932k). The totals exclude 2 filings filed without an amount. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. One trade stands out by size: a sale of €353k from Toh Hsiang-Wen Keith, disclosed on 15 September 2026, or 0.31% of market capitalisation. The buyers include 2 senior executives.

Compared with its exchange (1,323 companies, median 4 filings), a count of 9 filings is above the norm. Since 2018, the database holds 20 purchases and 10 sales by insiders of the company.

The last insider purchase was made public on 28 August 2026, 72 days ago. Filings reach the HKEX feed a median of 4 days after the trade. The shorter that gap, the sooner other investors can see what insiders have done. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify.

This summary is built from HKEX disclosures alone and does not predict where the share price will go.

Insider Decl.
31
Thresholds
n/a
Buy Volume
€126,216
20 ops. · all time
Sell Volume
€932,122
10 ops. · all time

Who traded when

BuySale
Toh Hsiang-Wen Keith2 buys4 sales
Kong Deyang3 sales
Teo Cher Koon2 buys

Since the insiders bought

  • Filed 30 Aug 2019 · 2627 days ago · €126k
    +75.8%
    Entry HK$1.20 · Close at T+365 HK$2.11

Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.

This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.

Fundamental score
Ranked 20,262 of 26,914 companies
34.2
score / 100
Value
26
Quality
43
FCF yld0.8%
Earn yld0.4%
EV/EBITDA56.4x
ROE9.2%
Gross mgn24%
Net mgn1.5%
Debt/EBITDA2.5x
Pillars2/3

Transparent value + quality ranking, distinct from the insider signal.

Financial data

as of FY 2025

FY ended December 2025 · cache

HK$3.98
Analyst consensus
·
Income statement
RevenueHK$440.2M
Gross profitHK$105.2M24% margin
EBITDAHK$33.6M8% margin
Net incomeHK$6.8M3.3% margin
Valuation
PER (trailing)19.0x
P/Book1.3x
Beta1.26
Balance sheet & cash
Market capHK$1.8B
Total debtHK$84.1M
Free Cash FlowHK$13.9M
Debt / Equity33%
Profitability & ownership
ROE9.2%
ROA5.2%
% insiders36.3%
% institutions10.9%
Last declaration on 8 October 2026
Declarations31 total
  • ▼
    DirectorExecutives
    327,424 HKD15HKEX
    511,600 shares@ HK$0.640.018% mcap4.8% of flowShareXHKGHKEX:DA20261007E00440
  • ▼
    DirectorExecutives
    690,843 HKD19HKEX
    1,078,600 shares@ HK$0.64050.066% mcap10.4% of flowShareXHKGHKEX:DA20260915E00307
  • ▼
    DirectorExecutives
    3M HKD26HKEX
    4,886,200 shares@ HK$0.65940.31% mcap48.3% of flowShareXHKGHKEX:DA20260915E00306
  • ▼
    DirectorExecutives
    3M HKD25HKEX
    4,125,000 shares@ HK$0.6690.26% mcap41.4% of flowShareXHKGHKEX:DA20260914E00488
  • ▲
    DirectorExecutives
    0HKEX
    1,230,568 sharesShareXHKGHKEX:DA20260827E00354
    Canonical exit: 23 Nov 2026 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    321,515 sharesShareXHKGHKEX:DA20260827E00516
    Canonical exit: 22 Nov 2026 (T+90)
  • ▼
    DirectorExecutives
    957,387 HKD17HKEX
    1,306,300 shares@ HK$0.732964.1% of flowShareXHKGHKEX:DA20260528E00097
  • ▼
    DirectorExecutives
    427,464 HKD14HKEX
    593,700 shares@ HK$0.7228.6% of flowShareXHKGHKEX:DA20260528E00096
  • ▼
    DirectorExecutives
    108,000 HKD12HKEX
    150,000 shares@ HK$0.727.2% of flowShareXHKGHKEX:DA20260528E00094
  • ▲
    DirectorExecutives
    0HKEX
    2,264,641 sharesShareXHKGHKEX:DA20250827E00281
    Canonical exit: 23 Nov 2025 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    639,959 sharesShareXHKGHKEX:DA20250826E00249
    Canonical exit: 20 Nov 2025 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    1,473,577 sharesShareXHKGHKEX:DA20240828E00048
    Canonical exit: 24 Nov 2024 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    389,761 sharesShareXHKGHKEX:DA20240827E00246
    Canonical exit: 21 Nov 2024 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    2,760,166 sharesShareXHKGHKEX:DA20230829E00307
    Canonical exit: 23 Nov 2023 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    723,973 sharesShareXHKGHKEX:DA20230828E00259
    Canonical exit: 22 Nov 2023 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    1,697,200 sharesShareXHKGHKEX:DA20210830E00352
    Canonical exit: 24 Nov 2021 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    431,060 sharesShareXHKGHKEX:DA20210830E00394
    Canonical exit: 24 Nov 2021 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    813,500 sharesShareXHKGHKEX:DA20201016E00348
    Canonical exit: 12 Jan 2021 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    2,889,335 sharesShareXHKGHKEX:DA20200831E00158
    Canonical exit: 25 Nov 2020 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    790,173 sharesShareXHKGHKEX:DA20200831E00327
    Canonical exit: 25 Nov 2020 (T+90)
  • ▼
    DirectorExecutives
    0HKEX
    2,802,000 sharesShareXHKGHKEX:DA20200826E00557
  • ▲
    DirectorExecutives
    0HKEX
    315,000 sharesShareXHKGHKEX:DA20200318E00307
    Canonical exit: 14 Jun 2020 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    10,000,000 sharesShareXHKGHKEX:DA20190913E00182
    Canonical exit: 10 Dec 2019 (T+90)
  • ▲
    DirectorExecutives
    1M HKD0HKEX
    885,106 shares@ HK$1.24ShareXHKGHKEX:DA20190830E00046
    Canonical exit: 26 Nov 2019 (T+90)
  • ▲
    DirectorExecutives
    0HKEX
    4,132,330 sharesShareXHKGHKEX:DA20190829E00039
    Canonical exit: 25 Nov 2019 (T+90)

25 of 31 declarations

About ISDN Holdings Ltd.

ISDN Holdings Ltd. is a company specializing in providing automation and control solutions for various industrial sectors. It offers products and services that enhance the operational efficiency of its clients.