Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 43 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

43 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 26, 2023 CTKB S 10b5-1 3,000 $9.50 $28,500 93,400 Direct -3.11% Disposed -38.2% (price as of 2026-10-02)
Nov. 24, 2023 CTKB S 10b5-1 3,000 $6.94 $20,820 96,400 Direct -3.02% Disposed -15.4% (price as of 2026-10-02)
Oct. 24, 2023 CTKB S 10b5-1 3,000 $4.68 $14,040 96,084 Direct -3.03% Disposed 25.4% (price as of 2026-10-02)
Sept. 25, 2023 CTKB S 10b5-1 3,000 $6.38 $19,140 99,084 Direct -2.94% Disposed -8.0% (price as of 2026-10-02)
Aug. 24, 2023 CTKB S 10b5-1 3,000 $7.69 $23,070 102,084 Direct -2.85% Disposed -23.7% (price as of 2026-10-02)
July 24, 2023 CTKB S 10b5-1 3,000 $9.17 $27,510 101,768 Direct +3.04% Acquired -36.0% (price as of 2026-10-02)
June 26, 2023 CTKB S 10b5-1 3,000 $7.96 $23,880 104,768 Direct -2.78% Disposed -26.3% (price as of 2026-10-02)
May 24, 2023 CTKB S 10b5-1 3,000 $7.76 $23,280 107,768 Direct -2.71% Disposed -24.4% (price as of 2026-10-02)
April 24, 2023 CTKB S 10b5-1 3,000 $10.24 $30,720 108,201 Direct -2.70% Disposed -42.7% (price as of 2026-10-02)
March 24, 2023 CTKB S 10b5-1 3,000 $8.33 $24,990 111,201 Direct -2.63% Disposed -29.5% (price as of 2026-10-02)
Feb. 24, 2023 CTKB S 10b5-1 3,000 $11.05 $33,150 114,201 Direct -2.56% Disposed -46.9% (price as of 2026-10-02)
Jan. 24, 2023 CTKB S 10b5-1 3,500 $11.05 $38,675 76,132 Direct -4.40% Disposed -46.9% (price as of 2026-10-02)
Dec. 27, 2022 CTKB S 10b5-1 3,500 $9.77 $34,195 79,632 Direct -4.21% Disposed -39.9% (price as of 2026-10-02)
Nov. 25, 2022 CTKB S 10b5-1 3,500 $14.30 $50,050 83,132 Direct -4.04% Disposed -59.0% (price as of 2026-10-02)
Oct. 24, 2022 CTKB S 10b5-1 3,500 $15.16 $53,060 85,563 Direct -3.93% Disposed -61.3% (price as of 2026-10-02)
Sept. 26, 2022 CTKB S 10b5-1 3,500 $12.63 $44,205 89,063 Direct -3.78% Disposed -53.5% (price as of 2026-10-02)
Aug. 24, 2022 CTKB S 10b5-1 3,500 $13.45 $47,075 92,563 Direct -3.64% Disposed -56.4% (price as of 2026-10-02)
Aug. 1, 2022 CTKB S 10b5-1 3,500 $12.80 $44,800 94,994 Direct -3.55% Disposed -54.1% (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
March 11, 2024 CTKB Restricted Stock Units Common Stock (4,908) · · 4,908 Disposed
Feb. 20, 2024 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
Nov. 18, 2023 CTKB Restricted Stock Units Common Stock (3,681) · · 3,681 Disposed
Nov. 18, 2023 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
Aug. 18, 2023 CTKB Restricted Stock Units Common Stock (3,681) · · 3,681 Disposed
Aug. 18, 2023 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
May 18, 2023 CTKB Restricted Stock Units Common Stock (2,454) · · 2,454 Disposed
May 18, 2023 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
March 3, 2023 CTKB Restricted Stock Units Common Stock (58,906) · · 58,906 Acquired
March 3, 2023 CTKB Employee Stock Option (Right to Buy) Common Stock (89,031) $10.61 March 3, 2033 89,031 Acquired
Feb. 21, 2023 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
Nov. 18, 2022 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
Sept. 8, 2022 CTKB Employee Stock Option (Right to Buy) Common Stock (40,000) $0.40 Jan. 11, 2029 40,000 Disposed
Aug. 18, 2022 CTKB Restricted Stock Units Common Stock (1,752) · · 1,752 Disposed
May 18, 2022 CTKB Restricted Stock Units Common Stock (2,336) · · 2,336 Disposed
Feb. 28, 2022 CTKB Restricted Stock Units Common Stock (28,042) · · 28,042 Acquired
Feb. 28, 2022 CTKB Stock Option (Right to Buy) Common Stock (42,310) $13.64 Feb. 28, 2032 42,310 Acquired
July 22, 2021 CTKB Stock Option (Right to Buy) Common Stock (125,000) $17.00 July 22, 2031 125,000 Acquired

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

Initial ownership (Form 3) 3 holdings

07

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

DateTickerSecuritySharesOwnership
July 22, 2021 CTKB Common Stock 95,997 Direct
July 22, 2021 CTKB Stock Option (Right to Buy)→ Common Stock (242,661) 242,661 Direct
July 22, 2021 CTKB Stock Option (Right to Buy)→ Common Stock (38,665) 38,665 Direct