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 25, 2021 HSDT A 3,063 · · 3,063 Direct · Acquired (price as of 2026-10-02)
May 25, 2021 HSDT A 937 · · 24,638 Direct +3.95% Acquired (price as of 2026-10-02)
June 10, 2020 HSDT A 61,218 · · 160,424 Direct +61.71% Acquired (price as of 2026-10-02)
June 10, 2020 HSDT A 36,697 · · 135,903 Direct +36.99% Acquired (price as of 2026-10-02)
March 28, 2019 HSDT A 14,733 · · 14,733 Direct · Acquired (price as of 2026-10-02)
May 15, 2018 HSDT A 12,500 · · 12,500 Direct · Acquired (price as of 2026-10-02)
Jan. 10, 2018 HSDT J 829,545 · · 829,545 Direct · Acquired (price as of 2026-10-02)
April 17, 2017 HSDT A 85,000 · · 85,000 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
May 25, 2021 HSDT Stock Option (Right to Buy) Class A Common Stock (3,063) $13.30 May 24, 2031 3,063 Acquired
June 10, 2020 HSDT Stock Option (Right to Buy) Class A Common Stock $0.55 June 9, 2030 61,218 Acquired
June 10, 2020 HSDT Stock Option (Right to Buy) Class A Common Stock (36,697) $0.55 June 9, 2030 36,697 Acquired
March 28, 2019 HSDT Stock Option (Right to Buy) Class A Common Stock (14,733) $6.76 March 28, 2029 14,733 Acquired
May 15, 2018 HSDT Stock Option (Right to Buy) Class A Common Stock (12,500) · May 15, 2028 12,500 Acquired
April 17, 2017 HSDT Stock Option (Right to Buy) Class A Common Stock (85,000) · April 17, 2027 85,000 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
May 14, 2015 HSDT Stock Option (Right to Buy)→ Class A Common Stock (400,000) 400,000 Direct