Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

TRIO-TECH INTERNATIONAL

TRT · Nasdaq · CIK 0000732026 · Technology · Semiconductor Equipment & Materials

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

24 Form 4 transaction lines observed in the same window
10 sales · 14 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
ADELMAN JASON TDirector
○▼▼○▼▼○
Srinivasan AnithaCHIEF FINANCIAL OFFICER
○○
TING HOCK MINGDirector
▼
HOROWITZ RICHARD MDirector,TenPercentOwner
▼
LIM HWEE POHSR CORP VP AND COO (TESTING)
○
YONG SIEW WAICHAIRMAN AND CEO
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot.—

Recent Form 4 activity

0Purchases
26Sales
17Other Form 4 lines
20SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING10 sale line(s) · context only
OTHER14 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
1,116,441
Previous report
863,346
Avg daily volume
656,345
Days to cover
1.7

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

43 transaction lines in the latest 365-day window; 138 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-28YONG SIEW WAIOption exercise / conversion (M)TRT Common Stock50,000USD 3.88USD 194,000SEC filing ↗
2026-09-28Srinivasan AnithaOption exercise / conversion (M)TRT Common Stock8,005USD 2.51USD 20,093SEC filing ↗
2026-07-27Srinivasan AnithaOption exercise / conversion (M)TRT Common Stock6,002USD 2.51USD 15,095SEC filing ↗
Show recent Form 4 evidence (29 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-28YONG SIEW WAIOption exercise / conversion (M)TRT Common Stock50,000USD 3.88USD 194,000SEC filing ↗
2026-09-28Srinivasan AnithaOption exercise / conversion (M)TRT Common Stock8,005USD 2.51USD 20,093SEC filing ↗
2026-07-27Srinivasan AnithaOption exercise / conversion (M)TRT Common Stock6,002USD 2.51USD 15,095SEC filing ↗
2026-06-23ADELMAN JASON TOption exercise / conversion (M)Common Stock70,000USD 3.11USD 217,700SEC filing ↗
2026-06-19ADELMAN JASON TSale (S)Common Stock5,000USD 14.88USD 74,400SEC filing ↗
2026-06-18ADELMAN JASON TSale (S)Common Stock5,000USD 15.84USD 79,200SEC filing ↗
2026-05-28ADELMAN JASON TOption exercise / conversion (M)Common Stock110,094USD 3.05USD 335,342SEC filing ↗
2026-05-26TING HOCK MINGSale (S)TRT Common Stock17,200USD 16.65USD 286,380SEC filing ↗
2026-05-19ADELMAN JASON TSale (S)Common Stock14,975USD 13.99USD 209,575SEC filing ↗
2026-05-18HOROWITZ RICHARD MSale (S)Common Stock67,500USD 18.10USD 1,221,750SEC filing ↗
2026-05-18ADELMAN JASON TSale (S)Common Stock35,000USD 17.39USD 608,750SEC filing ↗
2026-05-18ADELMAN JASON TOption exercise / conversion (M)Common Stock39,750USD 2.25USD 89,438SEC filing ↗
2026-04-29LIM HWEE POHOption exercise / conversion (M)TRT Common Stock59,802USD 2.68USD 160,162SEC filing ↗
2026-04-20TING HOCK MINGSale (S)TRT Common Stock2,000USD 7.13USD 14,260SEC filing ↗
2026-04-17TING HOCK MINGSale (S)TRT Common Stock3,800USD 7.08USD 26,904SEC filing ↗
2026-04-16TING HOCK MINGSale (S)Common Stock4,000USD 7.04USD 28,160SEC filing ↗
2026-04-15TING HOCK MINGSale (S)Common Stock3,000USD 6.99USD 20,970SEC filing ↗
2026-04-14TING HOCK MINGSale (S)Common Stock12,600USD 6.93USD 87,318SEC filing ↗
2026-04-13TING HOCK MINGSale (S)Common Stock6,000USD 6.73USD 40,380SEC filing ↗
2026-04-09TING HOCK MINGSale (S)TRT Common Stock4,000USD 6.78USD 27,120SEC filing ↗
2026-02-25Srinivasan AnithaOption exercise / conversion (M)TRT Common Stock7,015USD 3.09USD 21,676SEC filing ↗
2026-02-17HOROWITZ RICHARD MOption exercise / conversion (M)TRT Common Stock40,056USD 2.64USD 105,748SEC filing ↗
2026-01-27YONG SIEW WAIOption exercise / conversion (M)TRT Common Stock80,111USD 2.64USD 211,493SEC filing ↗
2026-01-16TING HOCK MINGSale (S)Common Stock70USD 6.78USD 475SEC filing ↗
2026-01-15TING HOCK MINGSale (S)Common Stock3,000USD 6.90USD 20,700SEC filing ↗
2026-01-12TING HOCK MINGSale (S)TRT Common Stock5,000USD 7.08USD 35,400SEC filing ↗
2026-01-07TING HOCK MINGSale (S)TRT Common Stock6,600USD 7.37USD 48,612SEC filing ↗
2026-01-07HOROWITZ RICHARD MSale (S)Common Stock7,500USD 7.50USD 56,250SEC filing ↗
2026-01-06TING HOCK MINGSale (S)Common Stock3,000USD 6.63USD 19,890SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerTRT
CIK0000732026
SectorTechnology
IndustrySemiconductor Equipment & Materials Yahoo Finance
SEC SIC3559 Special Industry Machinery, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history138 transaction lines from 2020-09-18 to 2026-09-28
0 P purchase lines · 85 S sale lines · 53 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.