Yi Steven — SEC Form 4 filings

SEC reporting owner CIK 1829946. 47 Form 4 filings on record with FilingPulse; latest filed 2026-09-02.

Transaction summary — filings shown

Covers all 47 filings on record, filed 2024-02-16 to 2026-09-02. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.

By issuer — same filings

Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.

IssuerRole (as filed)FilingsPurchases (P)Sales (S)Other legs
MediaAlpha, Inc. (MAX)See Remarks, Director4589 legs · 1,198,434 sh · $15,050,72225
WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)Director22

Form 4 filings — Yi Steven

FiledFormIssuerReported transactionsSource
2026-09-024MediaAlpha, Inc. (MAX)Sale (S): 48,000 @ $12.38EDGAR
2026-08-054MediaAlpha, Inc. (MAX)Sale (S): 72,000 @ $12.64EDGAR
2026-07-174MediaAlpha, Inc. (MAX)Sale (S): 82,457 @ $14.39 · Sale (S): 12,333 @ $14.20EDGAR
2026-07-154MediaAlpha, Inc. (MAX)Sale (S): 9,496 @ $14.05 · Sale (S): 37,701 @ $14.06 · Sale (S): 114,292 @ $14.17EDGAR
2026-07-084MediaAlpha, Inc. (MAX)Sale (S): 17,254 @ $14.01 · Sale (S): 26,467 @ $14.07EDGAR
2026-07-014MediaAlpha, Inc. (MAX)Sale (S): 96,000 @ $12.90EDGAR
2026-06-184MediaAlpha, Inc. (MAX)Sale (S): 24,000 @ $10.01EDGAR
2026-05-064MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.05 · Sale (S): 4,000 @ $8.93 · Sale (S): 4,000 @ $9.14EDGAR
2026-04-294MediaAlpha, Inc. (MAX)Sale (S): 33,663 @ $9.99 · Sale (S): 6,565 @ $10.00 · Sale (S): 26,739 @ $10.00EDGAR
2026-04-224MediaAlpha, Inc. (MAX)Sale (S): 28,543 @ $10.06 · Sale (S): 16,047 @ $10.08 · Sale (S): 4,000 @ $9.88EDGAR
2026-04-154MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.07 · Sale (S): 4,000 @ $9.47 · Sale (S): 4,000 @ $9.68EDGAR
2026-04-084MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.34 · Sale (S): 4,000 @ $9.46 · Sale (S): 4,000 @ $9.78EDGAR
2026-04-014MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.23 · Sale (S): 4,000 @ $9.60 · Sale (S): 4,000 @ $9.15EDGAR
2026-03-254MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.67 · Sale (S): 4,000 @ $9.48 · Sale (S): 4,000 @ $9.42EDGAR
2026-03-184MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $9.59EDGAR
2026-03-174MediaAlpha, Inc. (MAX)Grant/award (A): 448,500 @ $0 · Sale (S): 4,000 @ $9.93 · Sale (S): 5,227 @ $9.94 · Grant/award (A): 149,550 (derivative) @ $0EDGAR
2026-03-114MediaAlpha, Inc. (MAX)Sale (S): 5,650 @ $9.86 · Sale (S): 4,000 @ $9.75 · Sale (S): 4,000 @ $9.68EDGAR
2026-03-044MediaAlpha, Inc. (MAX)Sale (S): 39,252 @ $9.99 · Sale (S): 8,000 @ $10.03 · Sale (S): 8,000 @ $10.07EDGAR
2026-02-254MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $7.75 · Sale (S): 4,000 @ $8.80 · Sale (S): 4,000 @ $9 · Sale (S): 8,748 @ $10.00EDGAR
2026-02-194MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $7.16 · Sale (S): 4,000 @ $7.34 · Sale (S): 4,000 @ $7.29EDGAR
2026-02-174MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2026-02-114MediaAlpha, Inc. (MAX)Sale (S): 4,000 @ $8.74 · Sale (S): 4,000 @ $8.71 · Sale (S): 4,000 @ $7.99EDGAR
2026-02-044MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $10.32 · Sale (S): 8,000 @ $10.04 · Sale (S): 4,000 @ $8.94EDGAR
2026-01-284MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $10.89 · Sale (S): 8,000 @ $10.51 · Sale (S): 8,000 @ $10.57EDGAR
2026-01-224MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $11.20 · Sale (S): 8,000 @ $11.02 · Sale (S): 8,000 @ $11.20EDGAR
2026-01-144MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $11.51 · Sale (S): 8,000 @ $11.37 · Sale (S): 8,000 @ $11.69EDGAR
2026-01-074MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $11.98 · Sale (S): 8,000 @ $11.87 · Sale (S): 8,000 @ $11.66EDGAR
2025-12-314MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $12.65 · Sale (S): 8,000 @ $12.79 · Sale (S): 8,000 @ $12.94EDGAR
2025-12-294MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $12.86 · Sale (S): 8,000 @ $12.68 · Sale (S): 8,000 @ $12.67EDGAR
2025-12-174MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $12.88 · Sale (S): 8,000 @ $12.67 · Sale (S): 8,000 @ $12.82EDGAR
2025-12-104MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $13.07 · Sale (S): 8,000 @ $13.28 · Sale (S): 8,000 @ $13.50EDGAR
2025-12-034MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $12.60 · Sale (S): 8,000 @ $12.57 · Sale (S): 4,711 @ $13.19 · Sale (S): 3,289 @ $13.64EDGAR
2025-11-264MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $11.88 · Sale (S): 8,000 @ $11.98 · Sale (S): 8,000 @ $12.48EDGAR
2025-11-194MediaAlpha, Inc. (MAX)Sale (S): 8,000 @ $12.31 · Sale (S): 8,000 @ $11.85 · Sale (S): 8,000 @ $11.72EDGAR
2025-11-184MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2025-08-184MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2025-05-234WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)Grant/award (A): 150 @ $0EDGAR
2025-05-164MediaAlpha, Inc. (MAX)Option exercise (M): 18,293 @ $0 · Option exercise (M): 18,293 (derivative) @ $0EDGAR
2025-03-184MediaAlpha, Inc. (MAX)Grant/award (A): 606,800 @ $0 · Grant/award (A): 26,249 @ $0EDGAR
2025-02-184MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2024-11-184MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2024-11-014MediaAlpha, Inc. (MAX)Sale (S): 72,000 @ $20.66EDGAR
2024-08-154MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR
2024-05-244WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)Grant/award (A): 165 @ $0EDGAR
2024-05-204MediaAlpha, Inc. (MAX)Option exercise (M): 18,293 @ $0 · Option exercise (M): 18,293 (derivative) @ $0EDGAR
2024-03-194MediaAlpha, Inc. (MAX)Grant/award (A): 6,400 @ $0 · Grant/award (A): 291,400 @ $0 · Grant/award (A): 43,750 @ $0EDGAR
2024-02-164MediaAlpha, Inc. (MAX)Option exercise (M): 18,294 @ $0 · Option exercise (M): 18,294 (derivative) @ $0EDGAR

FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.

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