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

NATIONAL RESEARCH CORP

NRC · Nasdaq · CIK 0000070487 · Healthcare · Health Information Services

INSIDER SIGNAL

No active buy signal

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

5 Form 4 transaction lines observed in the same window
0 sales · 5 option, withholding, award, gift or other lines

Last qualifying purchase2026-02-17 · HARRISON SHANE R · $98.2K

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
Berwick Donald MDirector
○
Bhandari ParulDirector
○
Lockhart Stephen HDirector
○
NUNNELLY JOHN NDirector
○
Wheeler Penny AnnDirector
○
● 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. Last qualifying purchase: 2026-02-17 · HARRISON SHANE R.

Recent Form 4 activity

1Purchases
0Sales
11Other Form 4 lines
11SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER5 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
685,621
Previous report
685,377
Avg daily volume
137,593
Days to cover
5.0

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
2026-02-17HARRISON SHANE RPurchase (P)Common Stock8,000USD 12.27USD 98,160SEC filing ↗
2025-07-31Freeman Jordan NicolePurchase (P)Common Stock771USD 12.97USD 10,000SEC filing ↗
2025-05-12BEANS PATRICK EPurchase (P)Common Stock2,500USD 13.59USD 33,975SEC filing ↗

Form 4 evidence

12 transaction lines in the latest 365-day window; 212 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-23Wheeler Penny AnnAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23NUNNELLY JOHN NAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23Lockhart Stephen HAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (12 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-23Wheeler Penny AnnAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23NUNNELLY JOHN NAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23Lockhart Stephen HAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23Bhandari ParulAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-06-23Berwick Donald MAward / grant (A)Common Stock7,697USD 0.00USD 0SEC filing ↗
2026-03-12Rau Jason RussellAward / grant (A)Common Stock60,000USD 0.00USD 0SEC filing ↗
2026-02-17HARRISON SHANE RPurchase (P)Common Stock8,000USD 12.27USD 98,160SEC filing ↗
2026-01-05Burik DavidAward / grant (A)Common Stock100,000USD 0.00USD 0SEC filing ↗
2026-01-05Hays Michael D.Option exercise / conversion (M)Common Stock9,145USD 15.23USD 139,278SEC filing ↗
2025-12-29HARRISON SHANE RTax withholding (F)Common Stock21,271USD 18.66USD 396,917SEC filing ↗
2025-12-15Hrdy HelenOption exercise / conversion (M)Common Stock12,346USD 15.23USD 188,030SEC filing ↗
2025-12-15Hrdy HelenTax withholding (F)Common Stock11,244USD 17.64USD 198,344SEC 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 · —
TickerNRC
CIK0000070487
SectorHealthcare
IndustryHealth Information Services Yahoo Finance
SEC SIC8731 Services-Commercial Physical & Biological Research
ExchangeNasdaq

Data coverage

Local Form 4 history212 transaction lines from 2020-01-03 to 2026-06-23
3 P purchase lines · 137 S sale lines · 72 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.