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

Mirion Technologies, Inc.

MIR · NYSE · CIK 0001809987 · Industrials · Specialty Industrial Machinery

INSIDER SIGNAL

40.4 / 100

1 buyers · 1 purchase transaction lines · $312.0K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyModerate
ConvictionModerate
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+9.0 / 25
Role+15.0 / 20
Recency+4.7 / 10
Conviction+4.7 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Buying conviction is reduced by concurrent selling
  • ✓ Role scores high · most senior buyer: Chief Financial Officer

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Kingsley Lawrence DDirector
○○○
Markopoulos JodyDirector
○○
Bockhorst KennethDirector
○
CASCELLA ROBERTDirector
○
Etzel Steven W.Director
○
KUO JOHN WDirector
○
● Purchase▼ Sale○ Other

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

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Schopfer Brian · $312.0K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-09-02–2026-09-02

Roles in the peak window: Chief Financial Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

40.4 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 40.8
  2. 40.7
  3. 40.6
  4. 40.5
  5. 40.4

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

1Purchases
7Sales
44Other Form 4 lines
40SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER11 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDUnavailable

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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+4.9%
3M
+2.7%
6M
-13.8%
12M
-30.4%

Volatility & liquidity

Volatility
52.0%
Beta
—
Avg daily value
USD 66.4M

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
3.1%
ROE
1.5%
Industry
Specialty Industrial Machinery

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

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

Shares short
38,384,209
Previous report
39,703,629
Avg daily volume
3,966,475
Days to cover
9.7

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

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

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-02Schopfer BrianPurchase (P)Class A Common Stock20,000USD 15.60USD 312,000SEC filing ↗
2020-07-02Sullivan Martha N.Purchase (P)Class A common stock35,000USD —USD —SEC filing ↗
2020-07-02Robinson David M.Purchase (P)Class A common stock200,000USD —USD —SEC filing ↗
2020-07-02REINEMUND STEVENPurchase (P)Class A common stock100,000USD —USD —SEC filing ↗
2020-07-02Frist William H.Purchase (P)Class A common stock300,000USD —USD —SEC filing ↗

Form 4 evidence

52 transaction lines in the latest 365-day window; 275 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Markopoulos JodyAward / grant (A)Class A Common Stock1,333USD 14.34USD 19,115SEC filing ↗
2026-09-30Kingsley Lawrence DAward / grant (A)Class A Common Stock1,333USD 14.34USD 19,115SEC filing ↗
2026-09-02Schopfer BrianPurchase (P)Class A Common Stock20,000USD 15.60USD 312,000SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Markopoulos JodyAward / grant (A)Class A Common Stock1,333USD 14.34USD 19,115SEC filing ↗
2026-09-30Kingsley Lawrence DAward / grant (A)Class A Common Stock1,333USD 14.34USD 19,115SEC filing ↗
2026-09-02Schopfer BrianPurchase (P)Class A Common Stock20,000USD 15.60USD 312,000SEC filing ↗
2026-06-30Kingsley Lawrence DAward / grant (A)Class A Common Stock1,095USD 17.46USD 19,119SEC filing ↗
2026-05-13Rege SheilaAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13Markopoulos JodyAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13Kingsley Lawrence DAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13KUO JOHN WAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13Etzel Steven W.Award / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13CASCELLA ROBERTAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-13Bockhorst KennethAward / grant (A)Class A Common Stock7,383USD 0.00USD 0SEC filing ↗
2026-05-07Moore Christopher A.Sale (S)Class A Common Stock8,400USD 19.64USD 164,976SEC filing ↗
2026-05-06Logan Thomas DGift (G)Class A Common Stock311,851USD 0.00USD 0SEC filing ↗
2026-04-01Ulrich AlisonTax withholding (F)Class A Common Stock2,053USD 18.59USD 38,165SEC filing ↗
2026-04-01Schopfer BrianTax withholding (F)Class A Common Stock7,377USD 18.59USD 137,138SEC filing ↗
2026-04-01Moore Christopher A.Tax withholding (F)Class A Common Stock1,903USD 18.59USD 35,377SEC filing ↗
2026-04-01Logan Thomas DTax withholding (F)Class A Common Stock22,614USD 18.59USD 420,394SEC filing ↗
2026-04-01Lee EmmanuelleTax withholding (F)Class A Common Stock4,680USD 18.59USD 87,001SEC filing ↗
2026-03-02Schopfer BrianTax withholding (F)Class A Common Stock28,499USD 21.61USD 615,863SEC filing ↗
2026-03-02Schopfer BrianAward / grant (A)Class A Common Stock64,906USD 0.00USD 0SEC filing ↗
2026-03-02Logan Thomas DGift (G)Class A Common Stock3,093,812USD 0.00USD 0SEC filing ↗
2026-03-02Logan Thomas DTax withholding (F)Class A Common Stock127,184USD 21.61USD 2,748,446SEC filing ↗
2026-03-02Logan Thomas DAward / grant (A)Class A Common Stock318,632USD 0.00USD 0SEC filing ↗
2026-03-02Eloy LoicAward / grant (A)Class A Common Stock15,577USD 0.00USD 0SEC filing ↗
2026-03-01Ulrich AlisonTax withholding (F)Class A Common Stock2,360USD 21.61USD 51,000SEC filing ↗
2026-03-01Ulrich AlisonAward / grant (A)Class A Common Stock5,552USD 0.00USD 0SEC filing ↗
2026-03-01Schopfer BrianTax withholding (F)Class A Common Stock9,172USD 21.61USD 198,207SEC filing ↗
2026-03-01Moore Christopher A.Tax withholding (F)Class A Common Stock1,397USD 21.61USD 30,189SEC filing ↗
2026-03-01Moore Christopher A.Award / grant (A)Class A Common Stock5,552USD 0.00USD 0SEC filing ↗
2026-03-01Logan Thomas DTax withholding (F)Class A Common Stock20,650USD 21.61USD 446,246SEC 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 · —
TickerMIR
CIK0001809987
SectorIndustrials
IndustrySpecialty Industrial Machinery Yahoo Finance
SEC SIC3829 Measuring & Controlling Devices, NEC
ExchangeNYSE

Data coverage

Local Form 4 history275 transaction lines from 2020-07-02 to 2026-09-30
5 P purchase lines · 34 S sale lines · 236 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.