Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 31 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
March 25, 2026 ACET A 43,361 · · 43,361 Direct · Acquired (price as of 2026-10-06)
Jan. 24, 2026 ACET F 546 $8.44 $4,608 5,145 Direct -9.59% Disposed -25.9% (price as of 2026-10-06)
Jan. 31, 2025 ACET A 324,040 · · 324,040 Direct · Acquired (price as of 2026-10-06)
Jan. 24, 2025 ACET F 8,752 $0.92 $8,052 91,048 Direct -8.77% Disposed -57.5% (price as of 2026-10-06)
June 5, 2024 ACET A 374,829 · · 374,829 Direct · Acquired (price as of 2026-10-06)
Jan. 24, 2024 ACET A 288,022 · · 288,022 Direct · Acquired (price as of 2026-10-06)
Jan. 24, 2024 ACET A 26,300 · · 99,800 Direct +35.78% Acquired (price as of 2026-10-06)
Jan. 24, 2024 ACET F 4,320 $2.40 $10,368 73,500 Direct -5.55% Disposed -83.7% (price as of 2026-10-06)
Oct. 2, 2023 ACET F 7,096 $1.37 $9,722 77,820 Direct -8.36% Disposed -71.5% (price as of 2026-10-06)
Aug. 14, 2023 ACET A 176,308 · · 176,308 Direct · Acquired (price as of 2026-10-06)
Aug. 14, 2023 ACET A 117,200 · · 117,200 Direct · Acquired (price as of 2026-10-06)
Aug. 14, 2023 ACET D 117,200 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
Aug. 14, 2023 ACET A 125,000 · · 125,000 Direct · Acquired (price as of 2026-10-06)
Aug. 14, 2023 ACET D 125,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
Aug. 14, 2023 ACET A 28,200 · · 28,200 Direct · Acquired (price as of 2026-10-06)
Aug. 14, 2023 ACET D 28,200 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
Aug. 14, 2023 ACET A 90,000 · · 90,000 Direct · Acquired (price as of 2026-10-06)
Aug. 14, 2023 ACET D 90,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
Jan. 24, 2023 ACET A 117,200 · · 117,200 Direct · Acquired (price as of 2026-10-06)
Jan. 24, 2023 ACET A 26,100 · · 84,916 Direct +44.38% Acquired (price as of 2026-10-06)
Oct. 4, 2022 ACET F 7,096 $14.22 $100,905 58,816 Direct -10.77% Disposed -97.3% (price as of 2026-10-06)
Aug. 4, 2022 ACET F 4,696 $18.25 $85,702 65,912 Direct -6.65% Disposed -97.9% (price as of 2026-10-06)
Aug. 4, 2022 ACET A 16,000 · · 70,608 Direct +29.30% Acquired (price as of 2026-10-06)
Feb. 14, 2022 ACET F 4,696 $14.27 $67,012 54,608 Direct -7.92% Disposed -97.3% (price as of 2026-10-06)
Feb. 14, 2022 ACET A 16,000 · · 59,304 Direct +36.95% Acquired (price as of 2026-10-06)
Jan. 28, 2022 ACET A 16,000 · · 48,000 Direct +50.00% Acquired (price as of 2026-10-06)
Jan. 28, 2022 ACET F 4,696 $11.69 $54,896 43,304 Direct -9.78% Disposed -96.7% (price as of 2026-10-06)
Jan. 7, 2022 ACET A 125,000 · · 125,000 Direct · Acquired (price as of 2026-10-06)
Oct. 1, 2021 ACET A 80,000 · · 80,000 Direct · Acquired (price as of 2026-10-06)
Feb. 12, 2021 ACET A 28,200 · · 28,200 Direct · Acquired (price as of 2026-10-06)
Jan. 13, 2021 ACET A 90,000 · · 90,000 Direct · Acquired (price as of 2026-10-06)

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
March 25, 2026 ACET Stock Option (Right to Buy) Common Stock (43,361) $6.81 March 24, 2036 43,361 Acquired
Jan. 31, 2025 ACET Stock Option (Right to Buy) Common Stock (324,040) $0.88 Jan. 30, 2035 324,040 Acquired
June 5, 2024 ACET Stock Option (Right to Buy) Common Stock (374,829) $2.53 Jan. 25, 2034 374,829 Acquired
Jan. 24, 2024 ACET Stock Option (Right to Buy) Common Stock (288,022) $2.40 Jan. 23, 2034 288,022 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (176,308) $2.14 Aug. 13, 2033 176,308 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (117,200) · Jan. 23, 2033 117,200 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (117,200) $9.05 Jan. 23, 2033 117,200 Disposed
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (125,000) · Jan. 6, 2032 125,000 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (125,000) $15.52 Jan. 6, 2032 125,000 Disposed
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (28,200) · Feb. 11, 2031 28,200 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (28,200) $16.82 Feb. 11, 2031 28,200 Disposed
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (90,000) · Jan. 12, 2031 90,000 Acquired
Aug. 14, 2023 ACET Stock Option (Right to Buy) Common Stock (90,000) $13.27 Jan. 12, 2031 90,000 Disposed
Jan. 24, 2023 ACET Stock Option (Right to Buy) Common Stock (117,200) $9.05 Jan. 23, 2033 117,200 Acquired
Jan. 7, 2022 ACET Stock Option (Right to Buy Common Stock (125,000) $15.52 Jan. 6, 2032 125,000 Acquired
Feb. 12, 2021 ACET Stock Option (Right to Buy) Common Stock (28,200) $16.82 Feb. 11, 2031 28,200 Acquired
Jan. 13, 2021 ACET Stock Option (Right to Buy) Common Stock (90,000) $13.27 Jan. 12, 2031 90,000 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
Sept. 17, 2020 ACET Non-Qualified Option (right-to-buy)→ Common Stock (195,898) 195,898 Direct