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

NACCO INDUSTRIES INC

NC · NYSE · CIK 0000789933 · Energy · Thermal Coal

INSIDER SIGNAL

No active buy signal

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

25 Form 4 transaction lines observed in the same window
0 sales · 25 option, withholding, award, gift or other lines

Last qualifying purchase2021-01-22 · RANKIN ALISON A · $33.3K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
TAPLIN BRITTON TDirector
○○
RANKIN ELIZABETH BOther
○○
RANKIN MATTHEW MDirector,Other
○○
RANKIN VICTOIRE GOther
○○
RANKIN ALFRED M ET ALDirector,Other
○○
SHAPARD ROBERT SDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 7 additional owner(s) remain in Form 4 evidence.

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. Last qualifying purchase: 2021-01-22 · RANKIN ALISON A.

Recent Form 4 activity

0Purchases
5Sales
63Other Form 4 lines
61SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER25 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
97,760
Previous report
70,928
Avg daily volume
23,436
Days to cover
4.2

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

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2021-01-22WILLIAMS DAVID BPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22WILLIAMS CLARA RPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22RANKIN THOMAS TPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22RANKIN ROGER FPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22RANKIN CORBINPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22RANKIN CLAIBORNE RPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22RANKIN CHLOE OPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22RANKIN ALISON APurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22BUTLER JOHN C JRPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22BUTLER HELEN RANKINPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗
2021-01-22BTR 2020 GST Trust f/b/o Thomas P.K. RankinPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22BTR 2020 GST Trust f/b/o Matthew M. RankinPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22BTR 2020 GST Trust f/b/o Julia R. KuipersPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22BTR 2020 GST Trust f/b/o James T. RankinPurchase (P)Class A Common Stock2,192USD 15.19USD 33,296SEC filing ↗
2021-01-22BTR 2020 GST Trust f/b/o Helen R. ButlerPurchase (P)Class A Common Stock2,191USD 15.19USD 33,281SEC filing ↗

Form 4 evidence

68 transaction lines in the latest 365-day window; 961 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01TAPLIN BRITTON TAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01SHAPARD ROBERT SAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01SACHS VALERIE GENTILEAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01TAPLIN BRITTON TAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01SHAPARD ROBERT SAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01SACHS VALERIE GENTILEAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01RANKIN VICTOIRE GAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01RANKIN MATTHEW MAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01RANKIN ELIZABETH BAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01RANKIN ALFRED M ET ALAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01Miller Michael SidneyAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01McDonald William PaulAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01LABARRE DENNIS WAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01Jumper John PAward / grant (A)Class A Common Stock1,125USD —USD —SEC filing ↗
2026-10-01DALRYMPLE JOHN S IIIAward / grant (A)Class A Common Stock663USD —USD —SEC filing ↗
2026-10-01Burns Patrick Joseph (2026)Award / grant (A)Class A Common Stock310USD —USD —SEC filing ↗
2026-07-01TAPLIN BRITTON TAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01SHAPARD ROBERT SAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01SACHS VALERIE GENTILEAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01RANKIN VICTOIRE GAward / grant (A)Class A Common Stock760USD —USD —SEC filing ↗
2026-07-01RANKIN MATTHEW MAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01RANKIN ELIZABETH BAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01RANKIN ALFRED M ET ALAward / grant (A)Class A Common Stock760USD —USD —SEC filing ↗
2026-07-01Miller Michael SidneyAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01McDonald William PaulAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01LABARRE DENNIS WAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-07-01Jumper John PAward / grant (A)Class A Common Stock773USD —USD —SEC filing ↗
2026-07-01DALRYMPLE JOHN S IIIAward / grant (A)Class A Common Stock569USD —USD —SEC filing ↗
2026-04-01RANKIN VICTOIRE GAward / grant (A)Class A Common Stock955USD —USD —SEC filing ↗
2026-04-01RANKIN ALFRED M ET ALAward / grant (A)Class A Common Stock955USD —USD —SEC filing ↗
2026-04-01TAPLIN BRITTON TAward / grant (A)Class A Common Stock563USD —USD —SEC filing ↗
2026-04-01SHAPARD ROBERT SAward / grant (A)Class A Common Stock563USD —USD —SEC filing ↗
2026-04-01SACHS VALERIE GENTILEAward / grant (A)Class A Common Stock563USD —USD —SEC 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 · —
TickerNC
CIK0000789933
SectorEnergy
IndustryThermal Coal Yahoo Finance
SEC SIC1221 Bituminous Coal & Lignite Surface Mining
ExchangeNYSE

Data coverage

Local Form 4 history961 transaction lines from 2020-01-02 to 2026-10-01
29 P purchase lines · 18 S sale lines · 914 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.