Lana Gladstein

Insider

First SEC filing: April 30, 2026 · Latest: April 30, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 3 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.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 4, 2026	SPTX	C	105,263	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 4, 2026	SPTX	C	33,515	—	—	33,515 Direct	—	Acquired	(price as of 2026-08-20)
April 30, 2026	SPTX	A	63,680	—	—	63,680 Direct	—	Acquired	(price as of 2026-08-20)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 4, 2026	SPTX	Series B Preferred Stock	Common Stock (33,515)	—	—	105,263	Disposed
April 30, 2026	SPTX	Stock Option (Right to Buy)	Common Stock (63,680)	$18.00	April 29, 2036	63,680	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
April 30, 2026	SPTX	Series B Preferred Stock→ Common Stock (33,515)	33,515	Direct
April 30, 2026	SPTX	Stock Option (Right to Buy)→ Common Stock (246,760)	246,760	Direct
April 30, 2026	SPTX	Stock Option (Right to Buy)→ Common Stock (26,533)	26,533	Direct
April 30, 2026	SPTX	Stock Option (Right to Buy)→ Common Stock (63,680)	63,680	Direct