Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 13 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
Aug. 5, 2026 ACET A 18,300 · · 18,300 Direct · Acquired (price as of 2026-10-02)
June 21, 2026 ACET A 4,200 · · 4,200 Direct · Acquired (price as of 2026-10-02)
June 11, 2025 ACET A 26,400 · · 26,400 Direct · Acquired (price as of 2026-10-02)
June 11, 2025 ACET A 5,900 · · 108,566 Direct +5.75% Acquired (price as of 2026-10-02)
Aug. 19, 2024 ACET A 70,200 · · 70,200 Direct · Acquired (price as of 2026-10-02)
Feb. 12, 2021 ACET A 41,100 · · 41,100 Direct · Acquired (price as of 2026-10-02)
Jan. 13, 2021 ACET A 80,000 · · 80,000 Direct · Acquired (price as of 2026-10-02)
Oct. 23, 2020 ACET F 4,957 · · 11,931 Direct -29.35% Disposed (price as of 2026-10-02)
Sept. 17, 2020 ACET A 193,027 · · 193,027 Direct · Acquired (price as of 2026-10-02)
Dec. 6, 2019 ACET A 16,888 · · 16,888 Direct -50.00% Disposed (price as of 2026-10-02)
Dec. 6, 2019 ACET A 88,667 · · 88,667 Direct · Acquired (price as of 2026-10-02)
Dec. 6, 2019 ACET A 118,222 · · 118,222 Direct · Acquired (price as of 2026-10-02)
May 13, 2019 ACET A 295,000 · · 295,000 Direct · 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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Aug. 5, 2026 ACET Stock Option (Right to Buy) Common Stock (18,300) $9.16 Aug. 4, 2036 18,300 Acquired
June 21, 2026 ACET Stock Option (Right to Buy) Common Stock (4,200) $8.10 June 20, 2036 4,200 Acquired
June 11, 2025 ACET Stock Option (Right to Buy) Common Stock (26,400) $0.78 June 10, 2035 26,400 Acquired
Aug. 19, 2024 ACET Stock Option (Right to Buy) Common Stock (70,200) $1.55 Aug. 18, 2034 70,200 Acquired
Feb. 12, 2021 ACET Stock Option (Right to Buy) Common Stock (41,100) $16.82 Feb. 11, 2031 41,100 Acquired
Jan. 13, 2021 ACET Stock Option (Right to Buy) Common Stock (80,000) $13.27 Jan. 12, 2031 80,000 Acquired
Sept. 17, 2020 ACET Stock Option (Right to Buy) Common Stock (193,027) $16.11 Sept. 16, 2030 193,027 Acquired
Dec. 6, 2019 ACET Stock Option (Right to Buy) Common Stock (88,667) $1.27 Dec. 5, 2029 88,667 Acquired
May 13, 2019 ACET Stock Option (Right to Buy) Common Stock (295,000) $8.08 May 12, 2029 295,000 Acquired

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

Initial ownership (Form 3) 2 holdings

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

DateTickerSecuritySharesOwnership
Aug. 20, 2024 ACET Common Stock 102,666 Direct
Aug. 20, 2024 ACET Stock Option (Right to Buy)→ Common Stock (80,000) 80,000 Direct

Compensation (DEF 14A)

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Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2020 $397,608 · $280,186 $2,202,885 · · $16,671 $2,897,351
2019 $248,182 · $150,142 $1,933,455 $77,675 · $5,869 $2,415,323

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.