Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 19 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

19 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 26, 2021 WKHS S 33,333 $28.00 $933,324 393,703 Direct -7.81% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $30.00 $999,990 427,036 Direct -7.24% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $32.00 $1,066,656 460,369 Direct -6.75% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $28.00 $933,324 445,421 Indirect -6.96% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $30.00 $999,990 478,754 Indirect -6.51% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $32.00 $1,066,656 512,087 Indirect -6.11% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $28.00 $933,324 220,966 Indirect -13.11% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $30.00 $999,990 254,299 Indirect -11.59% Disposed -100.0% (price as of 2026-10-02)
Jan. 26, 2021 WKHS S 33,333 $32.00 $1,066,656 287,632 Indirect -10.39% Disposed -100.0% (price as of 2026-10-02)
Jan. 7, 2021 WKHS S 33,333 $26.00 $866,658 493,702 Direct -6.32% Disposed -100.0% (price as of 2026-10-02)
Jan. 7, 2021 WKHS S 33,333 $26.00 $866,658 545,420 Indirect -5.76% Disposed -100.0% (price as of 2026-10-02)
Jan. 7, 2021 WKHS S 33,333 $26.00 $866,658 320,965 Indirect -9.41% Disposed -100.0% (price as of 2026-10-02)
Jan. 4, 2021 WKHS S 33,333 $20.73 $690,993 527,035 Direct -5.95% Disposed -100.0% (price as of 2026-10-02)
Jan. 4, 2021 WKHS S 33,333 $20.73 $690,993 578,753 Indirect -5.45% Disposed -100.0% (price as of 2026-10-02)
Jan. 4, 2021 WKHS S 33,333 $20.73 $690,993 354,298 Indirect -8.60% Disposed -100.0% (price as of 2026-10-02)
Nov. 20, 2020 WKHS S 33,333 $25.00 $833,325 560,368 Direct -5.61% Disposed -100.0% (price as of 2026-10-02)
Nov. 20, 2020 WKHS S 33,333 $25.03 $834,325 612,086 Indirect -5.16% Disposed -100.0% (price as of 2026-10-02)
Nov. 20, 2020 WKHS S 33,333 $25.00 $833,325 387,631 Indirect -7.92% Disposed -100.0% (price as of 2026-10-02)
Aug. 18, 2020 WKHS S 300,000 $16.54 $4,962,000 265,094 Indirect -53.09% Disposed -100.0% (price as of 2026-10-02)
Aug. 18, 2020 WKHS S 100,000 $16.62 $1,662,000 565,094 Indirect -15.04% Disposed -100.0% (price as of 2026-10-02)
Aug. 18, 2020 WKHS S 100,000 $16.80 $1,680,000 665,094 Indirect -13.07% Disposed -100.0% (price as of 2026-10-02)
Feb. 11, 2019 WKHS P 420,967 $0.95 $399,919 420,967 Indirect · Acquired -99.9% (price as of 2026-10-02)
Feb. 11, 2019 WKHS P 420,967 $0.95 $399,919 439,349 Direct +2290.10% Acquired -99.9% (price as of 2026-10-02)
April 27, 2018 WKHS P 18,382 $2.72 $49,999 18,382 Direct · Acquired -100.0% (price as of 2026-10-02)
Sept. 14, 2016 WKHS P 143,500 $5.28 $757,680 714,928 Indirect +25.11% Acquired -100.0% (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
Aug. 24, 2020 WKHS Stock Options Common Stock, $0.001 par value per share (10,000) $7.21 Aug. 15, 2021 10,000 Disposed
Aug. 24, 2020 WKHS Stock Options Common Stock, $0.001 par value per share (50,000) $7.01 Dec. 17, 2020 50,000 Disposed
Aug. 20, 2020 WKHS Common Stock Purchase Warrant Common Stock, $0.001 par value per share (95,254) $5.28 Nov. 7, 2020 95,254 Disposed
Aug. 20, 2020 WKHS Common Stock Purchase Warrant Common Stock, $0.001 par value per share (285,071) $5.28 Nov. 7, 2020 285,071 Disposed
Nov. 18, 2016 WKHS Common Stock Purchase Warrant Common Stock, Par Value $5.28 Nov. 9, 2020 47,604 Disposed
Sept. 14, 2016 WKHS Common Stock Purchase Warrant Common Stock, Par Value $5.28 Nov. 9, 2020 143,500 Disposed
Aug. 16, 2016 WKHS Stock Options [F4] Common Stock, Par Value $0.001 $7.21 Aug. 16, 2021 10,000 Disposed

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

Initial ownership (Form 3) 5 holdings

07

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

DateTickerSecuritySharesOwnership
Dec. 23, 2015 WKHS Stock Options [F1]→ Common Stock, Par Value $0.001 (50,000) 50,000 Direct
Dec. 23, 2015 WKHS 6% Convertible Promissory Note→ Common Stock, Par Value $0.001 · Indirect
Dec. 23, 2015 WKHS Stock Purchase Warrant→ Common Stock, Par Value $0.001 (428,571) 428,571 Indirect
Dec. 23, 2015 WKHS 6% Convertible Promissory Note→ Common Stock, Par Value $0.001 (142,857) 142,857 Indirect
Dec. 23, 2015 WKHS Stock Purchase Warrant→ Common Stock, Par Value $0.001 (142,857) 142,857 Indirect