Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

MGIC INVESTMENT CORP

MTG · NYSE · CIK 0000876437 · Financial Services · Insurance—Specialty

INSIDER SIGNAL

No active buy signal

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

30 Form 4 transaction lines observed in the same window
11 sales · 19 option, withholding, award, gift or other lines

Last qualifying purchase2021-12-02 · Arrigoni Daniel A. · $71.0K

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.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

Insider activity timeline

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

AprMayJunJulAugSepOct
Miosi Salvatore APresident & COO
▼▼▼▼▼
CULVER CURT SDirector
○○○
Colson Nathaniel HOfficer EVP, CFO & CRO
▼▼
Maggio Paula CEVP and General Counsel
▼▼
Zandi MarkDirector
○○
Thompson Michael LealDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 7 additional owner(s) remain in Form 4 evidence.

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: 2021-12-02 · Arrigoni Daniel A..

Recent Form 4 activity

0Purchases
26Sales
94Other Form 4 lines
112SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING11 sale line(s) · context only
OTHER19 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
10,331,644
Previous report
8,454,846
Avg daily volume
2,734,969
Days to cover
3.8

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
2021-12-02Arrigoni Daniel A.Purchase (P)Common Stock5,000USD 14.19USD 70,950SEC filing ↗
2020-08-14LEHMAN MICHAEL EPurchase (P)Common Stock8,000USD 8.49USD 67,920SEC filing ↗
2020-05-19Kozlak Jodee APurchase (P)Common Stock5,000USD 7.09USD 35,450SEC filing ↗

Form 4 evidence

120 transaction lines in the latest 365-day window; 578 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Miosi Salvatore ASale (S)Common Stock30,000USD 26.06USD 781,800SEC filing ↗
2026-10-01Mattke Timothy J.Sale (S)Common Stock137,114USD 26.23USD 3,597,186SEC filing ↗
2026-09-24Colson Nathaniel HSale (S)Common Stock20,000USD 29.48USD 589,600SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Miosi Salvatore ASale (S)Common Stock30,000USD 26.06USD 781,800SEC filing ↗
2026-10-01Mattke Timothy J.Sale (S)Common Stock137,114USD 26.23USD 3,597,186SEC filing ↗
2026-09-24Colson Nathaniel HSale (S)Common Stock20,000USD 29.48USD 589,600SEC filing ↗
2026-09-01Miosi Salvatore ASale (S)Common Stock30,000USD 30.73USD 921,900SEC filing ↗
2026-08-20Zandi MarkAward / grant (A)Common Stock28USD —USD —SEC filing ↗
2026-08-20Thompson Michael LealAward / grant (A)Common Stock28USD —USD —SEC filing ↗
2026-08-20Sculley Sheryl L.Award / grant (A)Common Stock130USD —USD —SEC filing ↗
2026-08-20O'Leary-Gill DanielaAward / grant (A)Common Stock28USD —USD —SEC filing ↗
2026-08-20Lowman Teresita M.Award / grant (A)Common Stock189USD —USD —SEC filing ↗
2026-08-20Klein Martin PAward / grant (A)Common Stock36USD —USD —SEC filing ↗
2026-08-20Hartzell Jay C.Award / grant (A)Common Stock195USD —USD —SEC filing ↗
2026-08-20CULVER CURT SAward / grant (A)Common Stock28USD —USD —SEC filing ↗
2026-08-20CHAPLIN C EDWARDAward / grant (A)Common Stock145USD —USD —SEC filing ↗
2026-08-07Maggio Paula CSale (S)Common Stock20,000USD 30.30USD 606,000SEC filing ↗
2026-08-05Mattke Timothy J.Sale (S)Common Stock137,113USD 30.52USD 4,184,689SEC filing ↗
2026-08-03Miosi Salvatore ASale (S)Common Stock30,000USD 29.70USD 891,000SEC filing ↗
2026-07-01Miosi Salvatore ASale (S)Common Stock30,000USD 28.23USD 846,900SEC filing ↗
2026-06-25Colson Nathaniel HSale (S)Common Stock20,000USD 27.10USD 542,000SEC filing ↗
2026-06-08Miosi Salvatore ASale (S)Common Stock30,000USD 25.38USD 761,400SEC filing ↗
2026-05-29Maggio Paula CSale (S)Common Stock20,937USD 25.55USD 534,940SEC filing ↗
2026-05-21Zandi MarkAward / grant (A)Common Stock29USD —USD —SEC filing ↗
2026-05-21Thompson Michael LealAward / grant (A)Common Stock29USD —USD —SEC filing ↗
2026-05-21Sculley Sheryl L.Award / grant (A)Common Stock134USD —USD —SEC filing ↗
2026-05-21O'Leary-Gill DanielaAward / grant (A)Common Stock29USD —USD —SEC filing ↗
2026-05-21Lowman Teresita M.Award / grant (A)Common Stock194USD —USD —SEC filing ↗
2026-05-21Klein Martin PAward / grant (A)Common Stock37USD —USD —SEC filing ↗
2026-05-21Hartzell Jay C.Award / grant (A)Common Stock201USD —USD —SEC filing ↗
2026-05-21CULVER CURT SAward / grant (A)Common Stock29USD —USD —SEC filing ↗
2026-05-21CHAPLIN C EDWARDAward / grant (A)Common Stock150USD —USD —SEC filing ↗
2026-05-15CULVER CURT SGift (G)Common Stock311,511USD —USD —SEC 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerMTG
CIK0000876437
SectorFinancial Services
IndustryInsurance—Specialty Yahoo Finance
SEC SIC6351 Surety Insurance
ExchangeNYSE

Data coverage

Local Form 4 history578 transaction lines from 2020-01-27 to 2026-10-01
3 P purchase lines · 39 S sale lines · 536 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.