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

MIZUHO FINANCIAL GROUP INC

MFG · NYSE; OTC · CIK 0001335730 · Financial Services · Banks—Regional

INSIDER SIGNAL

No active buy signal

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

36 Form 4 transaction lines observed in the same window
0 sales · 36 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

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
Kurosawa TatsuyaGroup Chief Governance Officer
○○
Komatsu MinoriSee Remarks
○○
Koyama TakeshiGroup Chief Strategy Officer
○○
Samejima MakotoGroup Chief Financial Officer
○○
Akamatsu FusaeGroup Chief Compliance Officer
○○
Akita NatsumiSee Remarks
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 12 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.—

Recent Form 4 activity

0Purchases
0Sales
36Other Form 4 lines
18SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER36 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
10,608,612
Previous report
8,772,957
Avg daily volume
3,120,135
Days to cover
3.4

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

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

36 transaction lines in the latest 365-day window; 36 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01Yonezawa TakefumiOption exercise / conversion (M)Common Stock3,069USD 0.00USD 0SEC filing ↗
2026-07-01Yonezawa TakefumiD (D)Common Stock1,228USD 59,140.78USD 72,624,878SEC filing ↗
2026-07-01Yagi MinakoOption exercise / conversion (M)Common Stock3,069USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01Yonezawa TakefumiOption exercise / conversion (M)Common Stock3,069USD 0.00USD 0SEC filing ↗
2026-07-01Yonezawa TakefumiD (D)Common Stock1,228USD 59,140.78USD 72,624,878SEC filing ↗
2026-07-01Yagi MinakoOption exercise / conversion (M)Common Stock3,069USD 0.00USD 0SEC filing ↗
2026-07-01Yagi MinakoD (D)Common Stock1,228USD 59,140.78USD 72,624,878SEC filing ↗
2026-07-01Tsujimori HidekiOption exercise / conversion (M)Common Stock1,315USD 0.00USD 0SEC filing ↗
2026-07-01Tsujimori HidekiD (D)Common Stock526USD 25,332.29USD 13,324,785SEC filing ↗
2026-07-01Take HidekatsuOption exercise / conversion (M)Common Stock6,604USD 0.00USD 0SEC filing ↗
2026-07-01Take HidekatsuD (D)Common Stock2,642USD —USD —SEC filing ↗
2026-07-01Sugawara MasayukiOption exercise / conversion (M)Common Stock5,281USD 0.00USD 0SEC filing ↗
2026-07-01Sugawara MasayukiD (D)Common Stock2,114USD —USD —SEC filing ↗
2026-07-01Shiraishi ShiroOption exercise / conversion (M)Common Stock1,315USD 0.00USD 0SEC filing ↗
2026-07-01Shiraishi ShiroD (D)Common Stock526USD 25,332.29USD 13,324,785SEC filing ↗
2026-07-01Matsuura ShujiOption exercise / conversion (M)Common Stock3,995USD 0.00USD 0SEC filing ↗
2026-07-01Matsuura ShujiD (D)Common Stock1,598USD 76,960.07USD 122,982,192SEC filing ↗
2026-07-01Kihara MasahiroOption exercise / conversion (M)Common Stock20,474USD 0.00USD 0SEC filing ↗
2026-07-01Kihara MasahiroD (D)Common Stock8,190USD —USD —SEC filing ↗
2026-07-01Kaminoyama NobuhiroOption exercise / conversion (M)Common Stock6,054USD 0.00USD 0SEC filing ↗
2026-07-01Kaminoyama NobuhiroD (D)Common Stock2,422USD —USD —SEC filing ↗
2026-07-01Inomata NaoshiOption exercise / conversion (M)Common Stock6,261USD 0.00USD 0SEC filing ↗
2026-07-01Inomata NaoshiD (D)Common Stock2,505USD —USD —SEC filing ↗
2026-07-01Hitomi MakotoOption exercise / conversion (M)Common Stock1,112USD 0.00USD 0SEC filing ↗
2026-07-01Hitomi MakotoD (D)Common Stock445USD 21,431.31USD 9,536,933SEC filing ↗
2026-07-01Hihara ShinichiroOption exercise / conversion (M)Common Stock2,595USD 0.00USD 0SEC filing ↗
2026-07-01Hihara ShinichiroD (D)Common Stock1,038USD 49,990.33USD 51,889,963SEC filing ↗
2026-07-01Akita NatsumiOption exercise / conversion (M)Common Stock4,512USD 0.00USD 0SEC filing ↗
2026-07-01Akita NatsumiD (D)Common Stock1,805USD 86,929.24USD 156,907,278SEC filing ↗
2026-06-01Samejima MakotoOption exercise / conversion (M)Common Stock1,703USD 0.00USD 0SEC filing ↗
2026-06-01Samejima MakotoD (D)Common Stock682USD 30,768.37USD 20,984,028SEC filing ↗
2026-06-01Kurosawa TatsuyaOption exercise / conversion (M)Common Stock719USD 0.00USD 0SEC filing ↗
2026-06-01Kurosawa TatsuyaD (D)Common Stock288USD 12,993.09USD 3,742,010SEC 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 · —
TickerMFG
CIK0001335730
SectorFinancial Services
IndustryBanks—Regional Yahoo Finance
SEC SIC6021 National Commercial Banks
ExchangeNYSE; OTC

Data coverage

Local Form 4 history36 transaction lines from 2026-06-01 to 2026-07-01
0 P purchase lines · 0 S sale lines · 36 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.