Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 12 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 15, 2026 MBBC A 8,467 · · 8,467 Direct · Acquired (price as of 2026-10-05)
June 15, 2026 MBBC A 3,386 · · 6,384 Direct +112.94% Acquired (price as of 2026-10-05)
June 3, 2026 MBBC M 300 $6.48 $1,944 22,294 Indirect +1.36% Acquired 132.7% (price as of 2026-10-05)
June 3, 2026 MBBC M 300 · · 600 Direct -33.33% Disposed (price as of 2026-10-05)
March 20, 2026 MBBC M 3,599 $8.13 $29,260 21,395 Indirect +20.22% Acquired 85.5% (price as of 2026-10-05)
March 20, 2026 MBBC M 599 $6.48 $3,882 21,994 Indirect +2.80% Acquired 132.7% (price as of 2026-10-05)
March 20, 2026 MBBC M None · · 2,400 Direct · Disposed (price as of 2026-10-05)
March 20, 2026 MBBC M None · · 900 Direct · Disposed (price as of 2026-10-05)
April 21, 2025 MBBC A 7,500 $10.00 $75,000 17,796 Indirect +72.84% Acquired 106.9% (price as of 2026-10-05)
May 16, 2023 MBBC A None · · 1,092 Direct · Acquired (price as of 2026-10-05)
June 28, 2022 MBBC A 2,185 · · 2,185 Direct · Acquired (price as of 2026-10-05)
June 28, 2022 MBBC A 4,370 · · 4,370 Direct · Acquired (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 15, 2026 MBBC Stock Options Common Stock $14.55 June 15, 2036 8,467 Acquired
June 3, 2026 MBBC Stock Options Common Stock $6.48 May 16, 2033 300 Disposed
March 20, 2026 MBBC Stock Options Common Stock $8.13 June 28, 2032 · Disposed
March 20, 2026 MBBC Stock Options Common Stock $6.48 May 16, 2033 · Disposed
May 16, 2023 MBBC Stock Options Common Stock $8.90 May 16, 2033 · Acquired
June 28, 2022 MBBC Stock Options Common Stock $11.16 June 28, 2032 4,370 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
April 14, 2021 MBBC Common Stock 7,500 Indirect