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

PMA Graphene Technology Group Inc.

PMA · Nasdaq · CIK 0001956166 · Industrials · Engineering & Construction

INSIDER SIGNAL

No active buy signal

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

20 Form 4 transaction lines observed in the same window
17 sales · 3 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 salesHigh
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
Lam Chi MingDirector
○○▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
● 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
17Sales
3Other Form 4 lines
7SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING17 sale line(s) · context only
OTHER3 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
108,881
Previous report
138,061
Avg daily volume
44,795
Days to cover
2.4

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

20 transaction lines in the latest 365-day window; 20 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-25Lam Chi MingSale (S)Class A Ordinary Shares47,865USD 1.30USD 62,224SEC filing ↗
2026-09-24Lam Chi MingSale (S)Class A Ordinary Shares120,000USD 1.30USD 156,000SEC filing ↗
2026-09-23Lam Chi MingSale (S)Class A Ordinary Shares6,000USD 1.30USD 7,800SEC filing ↗
Show recent Form 4 evidence (19 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-25Lam Chi MingSale (S)Class A Ordinary Shares47,865USD 1.30USD 62,224SEC filing ↗
2026-09-24Lam Chi MingSale (S)Class A Ordinary Shares120,000USD 1.30USD 156,000SEC filing ↗
2026-09-23Lam Chi MingSale (S)Class A Ordinary Shares6,000USD 1.30USD 7,800SEC filing ↗
2026-09-22Lam Chi MingSale (S)Class A Ordinary Shares120,000USD 1.30USD 156,000SEC filing ↗
2026-09-15Lam Chi MingSale (S)Class A Ordinary Shares99,114USD 1.30USD 128,848SEC filing ↗
2026-09-11Lam Chi MingSale (S)Class A Ordinary Shares120,000USD 1.30USD 156,000SEC filing ↗
2026-09-09Lam Chi MingSale (S)Class A Ordinary Shares150,000USD 1.25USD 187,500SEC filing ↗
2026-08-21Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.32USD 132,000SEC filing ↗
2026-08-21Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.32USD 132,000SEC filing ↗
2026-08-18Lam Chi MingSale (S)Class A Ordinary Shares5,000USD 1.62USD 8,100SEC filing ↗
2026-08-18Lam Chi MingSale (S)Class A Ordinary Shares5,000USD 1.62USD 8,100SEC filing ↗
2026-08-17Lam Chi MingSale (S)Class A Ordinary Shares15,000USD 1.75USD 26,250SEC filing ↗
2026-08-17Lam Chi MingSale (S)Class A Ordinary Shares15,000USD 1.75USD 26,250SEC filing ↗
2026-08-14Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.37USD 137,000SEC filing ↗
2026-08-14Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.37USD 137,000SEC filing ↗
2026-08-13Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.10USD 110,000SEC filing ↗
2026-08-13Lam Chi MingSale (S)Class A Ordinary Shares100,000USD 1.10USD 110,000SEC filing ↗
2026-06-16Lam Chi MingJ (J)Ordinary Shares8,414,865USD 0.00USD 0SEC filing ↗
2026-06-16Lam Chi MingJ (J)Class A Ordinary Shares2,414,865USD 0.00USD 0SEC 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 · —
TickerPMA
CIK0001956166
SectorIndustrials
IndustryEngineering & Construction Yahoo Finance
SEC SIC1700 Construction - Special Trade Contractors
ExchangeNasdaq

Data coverage

Local Form 4 history20 transaction lines from 2026-06-16 to 2026-09-25
0 P purchase lines · 17 S sale lines · 3 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.