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1 insider bought €24k of shares over the last 90 days, the latest by Mr THARIN HARIRUNGCHAROEN, filed 30 Sept 2026.
Dimet (Siam) Public Company Limited: what insiders have been doing
Every trade that managers of Dimet (Siam) Public Company Limited disclose to Thai SEC (Form 59) is tracked on this page. The company sits in the Chemicals sector and is based in Thailand. It was founded in 1982. 2 insiders have disclosed 19 filings since 26 October 2025.
The record shows 18 purchases on the open market worth €24k, made by 1 insider, against 1 sale worth €3,921 by 1 insider. Purchases outweigh sales by €20k. Unlike grants, an open-market purchase is paid for by the insider, at the market price. One trade stands out by size: a purchase of €5,835 from Tharin Harirungcharoen, disclosed on 30 September 2026, or 0.14% of market capitalisation.
For context, the typical company on the same exchange (median of 351 companies) published 3 filings over the same period, against 19 filings here. Looking back to 2026, when coverage begins, insiders filed 18 purchases and 1 sale.
The latest purchase is recent: it was published 26 days ago, on 30 September 2026. Most trades are made public on the day they happen. That lag is the time during which only the insider knows about the trade.
In the same sector, recent insider purchases at Titan and Norske Skog ASA also feature in our signals. These figures are compiled from regulatory filings published by Thai SEC (Form 59). They describe what insiders did and are not a recommendation.
Key facts
Headquarters: Thailand · Founded: 1982
Source: Wikidata (CC0).
Insider Decl.
19
Thresholds
n/a
Buy Volume
€23,527
18 ops. · all time
Sell Volume
€3,921
1 ops. · all time
Who traded when
BuySaleTharin Harirungcharoen18 buys
Noppadol Kanjanatawewat1 sale
Since the insiders bought
- +0.0%Entry THB 0.05 · Close 22 Oct 2026 THB 0.05
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 25,404 of 26,320 companies
13.0
score / 100
Value10
Quality16
FCF yld-19%
Earn yld-22%
EV/EBITDA·
ROE-11%
Gross mgn17%
Net mgn-20%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
THB 0.05
Analyst consensus
Income statement
RevenueTHB 146.7M
Gross profitTHB 24.4M17% margin
EBITDA-THB 19.9M-14% margin
Net income-THB 29.3M-9.2% margin
Valuation
P/Book1.0x
Beta0.30
Balance sheet & cash
Market capTHB 134.6M
Total debtTHB 62M
Free Cash Flow-THB 26.2M
Debt / Equity45%
Profitability & ownership
ROE-11.0%
ROA-1.7%
% insiders81.7%
% institutions0.0%
Last declaration on 30 September 2026
Declarations19 total
4,447,100 shares@ THB 0.050.14% mcap24.8% of flowCommon ShareSETTHSEC:592000962610:165206_2_3:0vovcx2
Canonical exit: 29 Dec 2026 (T+90)
1,028,200 shares@ THB 0.050.032% mcap5.7% of flowCommon ShareSETTHSEC:592000962610:165206_2_2:1r4zcxz
Canonical exit: 28 Dec 2026 (T+90)
71,800 shares@ THB 0.050.0022% mcap0.4% of flowCommon ShareSETTHSEC:592000962610:165206_2_1:09n8w3h
Canonical exit: 27 Dec 2026 (T+90)
2,600 shares@ THB 0.050.0001% mcap0.0% of flowCommon ShareSETTHSEC:592004752609:165000_2_4:08qyww2
Canonical exit: 24 Dec 2026 (T+90)
347,500 shares@ THB 0.050.011% mcap1.9% of flowCommon ShareSETTHSEC:592004752609:165000_2_3:0i5d2p8
Canonical exit: 23 Dec 2026 (T+90)
3,200 shares@ THB 0.050.0001% mcap0.0% of flowCommon ShareSETTHSEC:592004752609:165000_2_2:1o56pml
Canonical exit: 22 Dec 2026 (T+90)
1,058,000 shares@ THB 0.050.033% mcap5.9% of flowCommon ShareSETTHSEC:592004752609:165000_2_1:1b3ydep
Canonical exit: 21 Dec 2026 (T+90)
392,400 shares@ THB 0.050.012% mcap2.2% of flowCommon ShareSETTHSEC:592003892609:164908_2_1:1lx61qg
Canonical exit: 20 Dec 2026 (T+90)
5,700 shares@ THB 0.050.0002% mcap0.0% of flowCommon ShareSETTHSEC:592003802609:164874_2_3:1c6r3jc
Canonical exit: 17 Dec 2026 (T+90)
1,643,500 shares@ THB 0.050.050% mcap9.1% of flowCommon ShareSETTHSEC:592003802609:164874_2_2:0l1fiy2
Canonical exit: 16 Dec 2026 (T+90)
100,000 shares@ THB 0.050.0030% mcap0.6% of flowCommon ShareSETTHSEC:592003802609:164874_2_1:09ealx6
Canonical exit: 14 Dec 2026 (T+90)
1,183,100 shares@ THB 0.050.036% mcap6.5% of flowCommon ShareSETTHSEC:592002682609:164742_2_2:0sw4bky
Canonical exit: 13 Dec 2026 (T+90)
324,000 shares@ THB 0.050.0099% mcap1.8% of flowCommon ShareSETTHSEC:592002682609:164742_2_1:1tngf26
Canonical exit: 10 Dec 2026 (T+90)
2,182,100 shares@ THB 0.050.066% mcap12.0% of flowCommon ShareSETTHSEC:592002012609:164685_2_1:0g9hee6
Canonical exit: 9 Dec 2026 (T+90)
989,900 shares@ THB 0.050.030% mcap5.5% of flowCommon ShareSETTHSEC:592001832609:164454_2_2:18o7q7x
Canonical exit: 6 Dec 2026 (T+90)
10,100 shares@ THB 0.050.0003% mcap0.1% of flowCommon ShareSETTHSEC:592001832609:164454_2_1:036w094
Canonical exit: 2 Dec 2026 (T+90)
1,982,500 shares@ THB 0.050.060% mcap10.9% of flowCommon ShareSETTHSEC:592000162609:164450_2_1:0ctl53f
Canonical exit: 29 Nov 2026 (T+90)
2,228,300 shares@ THB 0.050.068% mcap12.4% of flowCommon ShareSETTHSEC:592000112609:164432_2_1:1uvkfhh
Canonical exit: 22 Nov 2026 (T+90)
3,000,000 shares@ THB 0.05100.0% of flowCommon ShareSETTHSEC:592006242606:163366_2_1:08xi4w9
19 of 19 declarations
About Dimet (Siam) Public Company Limited
Dimet (Siam) Public Company Limited is a publicly traded company on the Thai stock exchange, specializing in the production and distribution of metal products. It primarily operates in the construction and industrial sectors.
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