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

Mayville Engineering Company, Inc.

MEC · NYSE · CIK 0001766368 · Industrials · Metal Fabrication

INSIDER SIGNAL

No active buy signal

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

17 Form 4 transaction lines observed in the same window
9 sales · 8 option, withholding, award, gift or other lines

Last qualifying purchase2025-08-11 · Leuba Sean P · $6.8K

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
Reddy Jagadeesh APresident & CEO
▼▼▼▼▼
Leuba Sean PSVP, GC & Secretary
○▼
Raber Ryan FEVP - Strategy, Sales & Mktg
▼
Nichols Craig DSVP, Operations & Supply Chain
▼
Wingfield TaniaDirector
○
McCormick Robert LDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 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: 2025-08-11 · Leuba Sean P.

Recent Form 4 activity

0Purchases
15Sales
23Other Form 4 lines
22SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING9 sale line(s) · context only
OTHER8 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
2,443,538
Previous report
1,988,864
Avg daily volume
692,019
Days to cover
3.5

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
2025-08-11Leuba Sean PPurchase (P)Common Stock500USD 13.56USD 6,780SEC filing ↗
2025-08-08Lehr Rachele MariePurchase (P)Common Stock1,400USD 14.08USD 19,712SEC filing ↗
2025-08-07Reddy Jagadeesh APurchase (P)Common Stock7,500USD 14.06USD 105,450SEC filing ↗
2025-03-12Reddy Jagadeesh APurchase (P)Common Stock380USD 13.75USD 5,225SEC filing ↗
2025-03-06Leuba Sean PPurchase (P)Common Stock1,000USD 14.18USD 14,180SEC filing ↗
2024-11-07Lehr Rachele MariePurchase (P)Common Stock1,500USD 15.90USD 23,850SEC filing ↗
2024-11-07Butz Todd MPurchase (P)Common Stock1,272USD 15.79USD 20,085SEC filing ↗
2024-11-07Reddy Jagadeesh APurchase (P)Common Stock5,903USD 16.72USD 98,698SEC filing ↗
2024-11-07Reddy Jagadeesh APurchase (P)Common Stock5,903USD 16.72USD 98,698SEC filing ↗
2024-11-07Leuba Sean PPurchase (P)Common Stock1,000USD 16.13USD 16,130SEC filing ↗
2024-03-15Reddy Jagadeesh APurchase (P)Common Stock1,560USD 12.85USD 20,046SEC filing ↗
2023-11-17Fisher Steven LPurchase (P)Common Stock3,000USD 12.75USD 38,250SEC filing ↗
2023-11-03Fisher Steven LPurchase (P)Common Stock5,000USD 12.45USD 62,250SEC filing ↗
2022-11-04Reddy Jagadeesh APurchase (P)Common Stock13,617USD 9.55USD 130,106SEC filing ↗
2022-11-04Reddy Jagadeesh APurchase (P)Common Stock13,617USD 9.55USD 130,106SEC filing ↗

Form 4 evidence

38 transaction lines in the latest 365-day window; 201 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-06Leuba Sean PSale (S)Common Stock12,855USD 25.44USD 327,031SEC filing ↗
2026-06-11Reddy Jagadeesh ASale (S)Common Stock15,688USD 35.05USD 549,864SEC filing ↗
2026-06-08Reddy Jagadeesh ASale (S)Common Stock1,300USD 35.01USD 45,513SEC filing ↗
Show recent Form 4 evidence (27 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-06Leuba Sean PSale (S)Common Stock12,855USD 25.44USD 327,031SEC filing ↗
2026-06-11Reddy Jagadeesh ASale (S)Common Stock15,688USD 35.05USD 549,864SEC filing ↗
2026-06-08Reddy Jagadeesh ASale (S)Common Stock1,300USD 35.01USD 45,513SEC filing ↗
2026-06-01Reddy Jagadeesh ASale (S)Common Stock17,294USD 30.00USD 518,820SEC filing ↗
2026-06-01Reddy Jagadeesh ASale (S)Common Stock17,942USD 30.00USD 538,260SEC filing ↗
2026-05-26Raber Ryan FSale (S)Common Stock20,000USD 26.00USD 520,000SEC filing ↗
2026-05-21Nichols Craig DSale (S)Common Stock4,000USD 23.24USD 92,960SEC filing ↗
2026-05-08Leuba Sean PGift (G)Common Stock1,015USD 0.00USD 0SEC filing ↗
2026-05-07Reddy Jagadeesh ASale (S)Common Stock21,796USD 25.93USD 565,064SEC filing ↗
2026-04-21Wingfield TaniaOption exercise / conversion (M)Common Stock5,949USD 0.00USD 0SEC filing ↗
2026-04-21McCormick Robert LOption exercise / conversion (M)Common Stock10,331USD 0.00USD 0SEC filing ↗
2026-04-21Fisher Steven LOption exercise / conversion (M)Common Stock50,231USD 0.00USD 0SEC filing ↗
2026-04-21Christen Timothy LOption exercise / conversion (M)Common Stock12,397USD 0.00USD 0SEC filing ↗
2026-03-15Reddy Jagadeesh AOption exercise / conversion (M)Common Stock63,960USD 0.00USD 0SEC filing ↗
2026-03-15Reddy Jagadeesh ATax withholding (F)Common Stock30,062USD 16.67USD 501,134SEC filing ↗
2026-03-15Raber Ryan FOption exercise / conversion (M)Common Stock30,102USD 0.00USD 0SEC filing ↗
2026-03-15Raber Ryan FTax withholding (F)Common Stock14,150USD 16.67USD 235,881SEC filing ↗
2026-03-15Nichols Craig DOption exercise / conversion (M)Common Stock5,808USD 0.00USD 0SEC filing ↗
2026-03-15Nichols Craig DTax withholding (F)Common Stock1,662USD 16.67USD 27,706SEC filing ↗
2026-03-15Leuba Sean POption exercise / conversion (M)Common Stock11,909USD 0.00USD 0SEC filing ↗
2026-03-15Leuba Sean PTax withholding (F)Common Stock5,277USD 16.67USD 87,968SEC filing ↗
2026-03-15Lehr Rachele MarieOption exercise / conversion (M)Common Stock14,368USD 0.00USD 0SEC filing ↗
2026-03-15Lehr Rachele MarieTax withholding (F)Common Stock4,600USD 16.67USD 76,682SEC filing ↗
2026-03-05Leuba Sean PSale (S)Common Stock9,198USD 19.15USD 176,164SEC filing ↗
2025-12-11Fisher Steven LSale (S)Common Stock10,000USD 19.11USD 191,100SEC filing ↗
2025-11-25Raber Ryan FSale (S)Common Stock15,000USD 16.68USD 250,200SEC filing ↗
2025-11-06Nichols Craig DAward / grant (A)Common Stock1,134USD 15.95USD 18,087SEC 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 · —
TickerMEC
CIK0001766368
SectorIndustrials
IndustryMetal Fabrication Yahoo Finance
SEC SIC3460 Metal Forgings & Stampings
ExchangeNYSE

Data coverage

Local Form 4 history201 transaction lines from 2020-03-02 to 2026-08-06
31 P purchase lines · 22 S sale lines · 148 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.