Holger Weis

Insider

First SEC filing: Nov. 8, 2024 · Latest: June 17, 2026

On this page

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

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

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 6, 2026	TCRT	A	4,363	$2.01	$8,770	25,483 Direct	+20.66%	Acquired	-2.0% (price as of 2026-08-20)
July 23, 2026	TCRT	A	4,568	$1.92	$8,771	21,120 Direct	+27.60%	Acquired	2.6% (price as of 2026-08-20)
June 30, 2026	TCRT	A	3,880	$2.26	$8,769	16,552 Direct	+30.62%	Acquired	-12.8% (price as of 2026-08-20)
June 12, 2026	TCRT	A	7,761	$2.26	$17,540	12,672 Direct	+158.03%	Acquired	-12.8% (price as of 2026-08-20)
June 2, 2026	JUNS	A	100,000	$0.28	$28,000	—	—	—	-76.7% (price as of 2026-08-20)
May 22, 2026	TCRT	A	3,700	$2.37	$8,769	4,911 Direct	+305.53%	Acquired	-16.9% (price as of 2026-08-20)
Aug. 18, 2025	TCRT	A	13,676	—	—	13,676 Direct	—	Acquired	(price as of 2026-08-20)
July 2, 2025	TCRT	A	130,000	—	—	130,000 Direct	—	Acquired	(price as of 2026-08-20)
June 2, 2025	JUNS	M	85,800	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 2, 2025	JUNS	M	85,800	—	—	96,581 Direct	+795.84%	Acquired	(price as of 2026-08-20)
April 13, 2025	TCRT	A	10,904	—	—	10,904 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2024	TCRT	A	4,524	—	—	4,524 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2024	TCRT	A	19,200	—	—	19,200 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2023	TCRT	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
June 22, 2022	TCRT	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
June 22, 2022	TCRT	A	40,000	—	—	160,167 Direct	+33.29%	Acquired	(price as of 2026-08-20)
Sept. 1, 2021	TCRT	P	50,000	$1.83	$91,500	120,167 Direct	+71.26%	Acquired	-99.3% (price as of 2026-08-20)
March 4, 2021	TCRT	A	150,000	—	—	150,000 Direct	—	Acquired	(price as of 2026-08-20)
March 4, 2021	TCRT	A	31,250	—	—	31,250 Direct	—	Acquired	(price as of 2026-08-20)
March 4, 2021	TCRT	A	4,167	—	—	70,167 Direct	+6.31%	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
Aug. 18, 2025	TCRT	Employee Stock Option (right to buy)	Common Stock (13,676)	$2.32	Aug. 17, 2035	13,676	Acquired
July 2, 2025	TCRT	Employee Stock Option (right to buy)	Common Stock (130,000)	$5.02	July 1, 2035	130,000	Acquired
June 2, 2025	JUNS	Restricted Stock Units	Common Stock (85,800)	—	Dec. 17, 2033	85,800	Disposed
April 13, 2025	TCRT	Employee Stock Option (right to buy)	Common Stock (10,904)	$2.92	April 12, 2035	10,904	Acquired
June 6, 2024	TCRT	Employee Stock Option (right to buy)	Common Stock (4,524)	$1.03	June 5, 2034	4,524	Acquired
June 6, 2024	TCRT	Employee Stock Option (right to buy)	Common Stock (19,200)	$1.03	June 5, 2034	19,200	Acquired
June 6, 2023	TCRT	Employee Stock Option (right to buy)	Common Stock (100,000)	$0.48	June 5, 2033	100,000	Acquired
June 22, 2022	TCRT	Employee Stock Option (right to buy)	Common Stock (100,000)	$0.82	June 21, 2032	100,000	Acquired
March 4, 2021	TCRT	Stock Option (right to buy)	Common Stock (150,000)	$4.31	March 3, 2031	150,000	Acquired
March 4, 2021	TCRT	Stock Option (right to buy)	Common Stock (31,250)	$4.31	March 3, 2031	31,250	Acquired

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

Initial ownership (Form 3) 10 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 8, 2024	JUNS	Stock option (right to buy)→ Common Stock	—	Direct
Nov. 8, 2024	JUNS	Stock option (right to buy)→ Common Stock	—	Direct
Nov. 8, 2024	JUNS	Stock option (right to buy)→ Common Stock	—	Direct
Nov. 8, 2024	JUNS	Restricted stock unit→ Common Stock	—	Direct
Nov. 8, 2024	JUNS	Convertible notes→ Common Stock	—	Direct
March 22, 2021	TCRT	Common Stock	66,000	Indirect
March 22, 2021	TCRT	Common Stock	19,000	Indirect
March 22, 2021	TCRT	Common Stock	1,000	Indirect
March 22, 2021	TCRT	Common Stock	1,240	Indirect
March 22, 2021	TCRT	Common Stock	200	Indirect