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

MERCANTILE BANK CORP

MBWM · Nasdaq · CIK 0001042729 · Financial Services · Banks—Regional

INSIDER SIGNAL

No active buy signal

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

11 Form 4 transaction lines observed in the same window
0 sales · 11 option, withholding, award, gift or other lines

Last qualifying purchase2025-10-31 · Sanchez Nelson F · $43.5K

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
Schweihofer StevenDirector
○
Davenport Michael S.Director
○
Eldridge Michelle LarabeeDirector
○
Schmidt Sara ADirector
○
PRICE MICHAEL HDirector
○
Jones Joseph DDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 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: 2025-10-31 · Sanchez Nelson F.

Recent Form 4 activity

1Purchases
2Sales
34Other Form 4 lines
23SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER11 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
626,403
Previous report
595,572
Avg daily volume
113,327
Days to cover
5.5

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
2025-10-31Sanchez Nelson FPurchase (P)Common Stock1,000USD 43.50USD 43,500SEC filing ↗
2025-08-18RAMAKER DAVID BPurchase (P)Common Stock1,500USD 46.71USD 70,065SEC filing ↗
2025-07-29Williams Shoran RPurchase (P)Common Stock200USD 47.29USD 9,458SEC filing ↗
2025-02-26Sanchez Nelson FPurchase (P)Common Stock212USD 47.00USD 9,964SEC filing ↗
2025-02-20Sanchez Nelson FPurchase (P)Common Stock393USD 47.75USD 18,768SEC filing ↗
2025-02-19Sanchez Nelson FPurchase (P)Common Stock191USD 48.00USD 9,168SEC filing ↗
2025-02-19MacDonald Richard DPurchase (P)Common Stock511USD 48.92USD 24,998SEC filing ↗
2025-02-18Sanchez Nelson FPurchase (P)Common Stock195USD 48.50USD 9,458SEC filing ↗
2025-02-04Sanchez Nelson FPurchase (P)Common Stock189USD 47.50USD 8,978SEC filing ↗
2025-02-03Sanchez Nelson FPurchase (P)Common Stock187USD 47.89USD 8,955SEC filing ↗
2025-01-31Williams Shoran RPurchase (P)Common Stock123USD 49.28USD 6,061SEC filing ↗
2025-01-29Sanchez Nelson FPurchase (P)Common Stock103USD 48.50USD 4,996SEC filing ↗
2024-06-11Sanchez Nelson FPurchase (P)Common Stock139USD 35.90USD 4,990SEC filing ↗
2024-06-10Sanchez Nelson FPurchase (P)Common Stock138USD 36.10USD 4,982SEC filing ↗
2024-06-07Sanchez Nelson FPurchase (P)Common Stock135USD 36.94USD 4,987SEC filing ↗

Form 4 evidence

37 transaction lines in the latest 365-day window; 243 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-22Williams Shoran RAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Sparks Amy LAward / grant (A)Common Stock906USD 0.00USD 0SEC filing ↗
2026-05-22Schweihofer StevenAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-22Williams Shoran RAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Sparks Amy LAward / grant (A)Common Stock906USD 0.00USD 0SEC filing ↗
2026-05-22Schweihofer StevenAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Schmidt Sara AAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Sanchez Nelson FAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22RAMAKER DAVID BAward / grant (A)Common Stock801USD 0.00USD 0SEC filing ↗
2026-05-22PRICE MICHAEL HAward / grant (A)Common Stock1,096USD 0.00USD 0SEC filing ↗
2026-05-22MacDonald Richard DAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Jones Joseph DAward / grant (A)Common Stock715USD 0.00USD 0SEC filing ↗
2026-05-22Eldridge Michelle LarabeeAward / grant (A)Common Stock830USD 0.00USD 0SEC filing ↗
2026-05-22Davenport Michael S.Award / grant (A)Common Stock753USD 0.00USD 0SEC filing ↗
2026-02-17Reitsma Raymond E.Tax withholding (F)Common Stock4,040USD 54.24USD 219,130SEC filing ↗
2026-02-17CHRISTMAS CHARLES ETax withholding (F)Common Stock3,021USD 54.24USD 163,859SEC filing ↗
2026-02-15Reitsma Raymond E.Award / grant (A)Common Stock1,808USD 0.00USD 0SEC filing ↗
2026-02-15CHRISTMAS CHARLES EAward / grant (A)Common Stock1,326USD 0.00USD 0SEC filing ↗
2026-02-05Setlock Scott PAward / grant (A)Common Stock3,406USD 0.00USD 0SEC filing ↗
2026-02-05Reitsma Raymond E.Award / grant (A)Common Stock11,338USD 0.00USD 0SEC filing ↗
2026-02-05Randall Tara MAward / grant (A)Common Stock2,730USD 0.00USD 0SEC filing ↗
2026-02-05Hoover BrettAward / grant (A)Common Stock2,832USD 0.00USD 0SEC filing ↗
2026-02-05CHRISTMAS CHARLES EAward / grant (A)Common Stock4,243USD 0.00USD 0SEC filing ↗
2026-02-05Augustyn Mark SAward / grant (A)Common Stock4,312USD 0.00USD 0SEC filing ↗
2026-01-06Schweihofer StevenAward / grant (A)Common Stock321USD 0.00USD 0SEC filing ↗
2025-12-31Schweihofer StevenAward / grant (A)Common Stock5,282USD —USD —SEC filing ↗
2025-12-19Setlock Scott PTax withholding (F)Common Stock1,187USD 49.45USD 58,697SEC filing ↗
2025-12-19Randall Tara MTax withholding (F)Common Stock1,500USD 49.45USD 74,175SEC filing ↗
2025-12-19Hoover BrettTax withholding (F)Common Stock950USD 49.45USD 46,978SEC filing ↗
2025-12-19Augustyn Mark STax withholding (F)Common Stock1,461USD 49.45USD 72,246SEC filing ↗
2025-12-12Augustyn Mark SGift (G)Common Stock2,022USD 0.00USD 0SEC filing ↗
2025-11-13PRICE MICHAEL HSale (S)Common Stock4,577USD 45.84USD 209,799SEC filing ↗
2025-10-31Sanchez Nelson FPurchase (P)Common Stock1,000USD 43.50USD 43,500SEC 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 · —
TickerMBWM
CIK0001042729
SectorFinancial Services
IndustryBanks—Regional Yahoo Finance
SEC SIC6022 State Commercial Banks
ExchangeNasdaq

Data coverage

Local Form 4 history243 transaction lines from 2020-04-24 to 2026-05-22
25 P purchase lines · 38 S sale lines · 180 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.