Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 8 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
May 28, 2025 SMTK A 33,741 · · 33,741 Direct · Acquired (price as of 2026-10-02)
June 14, 2024 SMTK A 49,000 · · 49,000 Direct · Acquired (price as of 2026-10-02)
Jan. 31, 2024 SMTK A 100 · · 100 Direct · Acquired (price as of 2026-10-02)
July 8, 2022 SMTK A 45,000 · · 45,000 Direct · Acquired (price as of 2026-10-02)
March 31, 2021 SMTK A 186,601 · · 186,601 Direct · Acquired (price as of 2026-10-02)
March 31, 2021 SMTK A 186,601 · · 186,601 Direct · Acquired (price as of 2026-10-02)
Feb. 23, 2021 SMTK A 178,086 · · 178,086 Direct · Acquired (price as of 2026-10-02)
Feb. 23, 2021 SMTK J 20,002 · · 20,002 Indirect · Acquired (price as of 2026-10-02)

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
May 28, 2025 SMTK Stock Option (right to Buy) Common Stock (33,741) $2.51 April 15, 2035 33,741 Acquired
June 14, 2024 SMTK Employee stock option (Right to Buy) Common Stock (49,000) $6.50 June 14, 2034 49,000 Acquired
July 8, 2022 SMTK Stock option (right to buy) Common Stock (45,000) $2.00 July 8, 2032 45,000 Acquired
March 31, 2021 SMTK Stock option (right to buy) Common Stock (186,601) $2.00 March 31, 2031 186,601 Acquired
March 31, 2021 SMTK Stock option (right to buy) Common Stock (186,601) $2.00 March 31, 2031 186,601 Acquired
Feb. 23, 2021 SMTK Option to Purchase Common Stock Common Stock (178,086) $0.00 Feb. 23, 2031 178,086 Acquired

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