Stella Xu

Insider

First SEC filing: June 15, 2020 · Latest: June 15, 2020

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 14 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

14 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 31, 2023	DSGN	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2022	DSGN	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
March 22, 2022	DSGN	S	1,455	$18.63	$27,107	4,129,950 Indirect	-0.04%	Disposed	-16.2% (price as of 2026-08-20)
March 21, 2022	DSGN	S	24,000	$19.01	$456,240	4,131,405 Indirect	-0.58%	Disposed	-17.9% (price as of 2026-08-20)
March 18, 2022	DSGN	S	13,200	$20.34	$268,488	4,155,405 Indirect	-0.32%	Disposed	-23.3% (price as of 2026-08-20)
March 18, 2022	DSGN	S	552,225	$19.04	$10,514,364	4,168,605 Indirect	-11.70%	Disposed	-18.0% (price as of 2026-08-20)
July 1, 2021	TPST	A	6,635	—	—	6,635 Direct	—	Acquired	(price as of 2026-08-20)
July 1, 2021	TPST	A	6,635	—	—	6,635 Direct	—	Acquired	(price as of 2026-08-20)
June 25, 2021	TPST	A	579,710	—	—	579,710 Indirect	—	Acquired	(price as of 2026-08-20)
March 30, 2021	DSGN	C	4,439,839	—	—	4,439,839 Indirect	—	Acquired	(price as of 2026-08-20)
March 30, 2021	DSGN	P	10,000	$20.00	$200,000	4,730,830 Indirect	+0.21%	Acquired	-22.0% (price as of 2026-08-20)
March 30, 2021	DSGN	C	280,991	—	—	4,720,830 Indirect	+6.33%	Acquired	(price as of 2026-08-20)
March 30, 2021	DSGN	C	458,016	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
March 30, 2021	DSGN	C	7,236,938	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
March 25, 2021	DSGN	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
June 11, 2020	NXTC	A	14,250	—	—	14,250 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2019	NXTC	A	22,000	—	—	22,000 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2019	NXTC	P	125,000	$15.00	$1,875,000	1,103,570 Indirect	+12.77%	Acquired	-96.4% (price as of 2026-08-20)
May 13, 2019	NXTC	C	7,861,636	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
May 13, 2019	NXTC	C	978,570	—	—	978,570 Indirect	—	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.

Derivative holdings (Form 4 Table II)

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 31, 2023	DSGN	Stock Option (right to buy)	Common Stock (15,000)	$5.63	May 30, 2033	15,000	Acquired
June 15, 2022	DSGN	Stock Option (right to buy)	Common Stock (15,000)	$13.69	June 14, 2032	15,000	Acquired
July 1, 2021	TPST	Stock Option (Right to Buy)	Common Stock (6,635)	$11.07	June 30, 2031	6,635	Acquired
July 1, 2021	TPST	Stock Option (Right to Buy)	Common Stock (6,635)	$11.07	June 30, 2031	6,635	Acquired
March 30, 2021	DSGN	Series B Preferred Stock	Common Stock (280,991)	—	—	458,016	Disposed
March 30, 2021	DSGN	Series A Preferred Stock	Common Stock (4,439,839)	—	—	7,236,938	Disposed
March 25, 2021	DSGN	Stock Option (right to buy)	Common Stock (15,000)	$20.00	March 24, 2031	15,000	Acquired
June 11, 2020	NXTC	Stock Option (Right to Buy)	Common Stock (14,250)	$24.13	June 10, 2030	14,250	Acquired
June 13, 2019	NXTC	Stock Option (Right to Buy)	Common Stock (22,000)	$15.57	June 12, 2029	22,000	Acquired
May 13, 2019	NXTC	Series B-2 Preferred Stock	Common Stock (978,570)	—	—	7,861,636	Disposed

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