Tahira Rehmatullah

Insider

First SEC filing: Oct. 19, 2020 · Latest: Oct. 19, 2020

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 6 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
March 10, 2021	CIFR	G	2,500	—	—	47,500 Direct	-5.00%	Disposed	(price as of 2026-08-21)
April 8, 2020	ABTC	J	36,624	—	—	44,124 Direct	+488.32%	Acquired	(price as of 2026-08-21)
April 8, 2020	ABTC	J	5,127	—	—	5,127 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 28, 2020	ABTC	A	1,484	—	—	1,484 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 23, 2019	ABTC	J	7,500	—	—	7,500 Direct	—	Acquired	(price as of 2026-08-21)
Oct. 7, 2019	ABTC	A	572	—	—	572 Direct	—	Acquired	(price as of 2026-08-21)

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
April 8, 2020	ABTC	Warrants	Common Shares (5,127)	$11.50	June 7, 2024	5,127	Acquired
Jan. 28, 2020	ABTC	Restricted Stock Units	Common Stock (1,484)	—	—	1,484	Acquired
Oct. 7, 2019	ABTC	Restricted Stock Units	Common Stock, par value $0.0001 (572)	—	—	572	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
Oct. 19, 2020	CIFR	Common Stock	50,000	Direct