Eric Sievers

Insider

First SEC filing: Dec. 15, 2020 · Latest: June 5, 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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

BCAB selling Dec. 2, 2021

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 47 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

47 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 31, 2026	BCAB	F	134	$3.93	$527	11,840 Direct	-1.12%	Disposed	-17.8% (price as of 2026-08-19)
March 11, 2026	BCAB	F	360	$0.17	$61	11,614 Direct	-3.01%	Disposed	-62.0% (price as of 2026-08-19)
March 10, 2026	BCAB	A	240,000	—	—	598,705 Direct	+66.91%	Acquired	(price as of 2026-08-19)
Feb. 28, 2026	BCAB	F	3,140	$0.25	$785	358,705 Direct	-0.87%	Disposed	-74.2% (price as of 2026-08-19)
Nov. 30, 2025	BCAB	F	2,729	$0.90	$2,456	361,845 Direct	-0.75%	Disposed	-92.8% (price as of 2026-08-19)
Aug. 31, 2025	BCAB	F	2,729	$0.46	$1,255	364,574 Direct	-0.74%	Disposed	-86.0% (price as of 2026-08-19)
May 31, 2025	BCAB	F	2,729	$0.41	$1,119	367,303 Direct	-0.74%	Disposed	-84.2% (price as of 2026-08-19)
March 11, 2025	BCAB	A	175,000	—	—	370,032 Direct	+89.73%	Acquired	(price as of 2026-08-19)
Feb. 15, 2025	BCAB	F	12,530	$0.46	$5,764	195,032 Direct	-6.04%	Disposed	-86.0% (price as of 2026-08-19)
Aug. 31, 2024	BCAB	F	572	$1.77	$1,012	207,562 Direct	-0.27%	Disposed	-96.4% (price as of 2026-08-19)
July 31, 2024	BCAB	F	572	$1.81	$1,035	208,134 Direct	-0.27%	Disposed	-96.4% (price as of 2026-08-19)
June 30, 2024	BCAB	F	572	$1.37	$784	208,706 Direct	-0.27%	Disposed	-95.3% (price as of 2026-08-19)
May 31, 2024	BCAB	F	572	$1.51	$864	209,278 Direct	-0.27%	Disposed	-95.7% (price as of 2026-08-19)
April 30, 2024	BCAB	F	572	$2.26	$1,293	209,850 Direct	-0.27%	Disposed	-97.1% (price as of 2026-08-19)
March 31, 2024	BCAB	F	572	$3.44	$1,968	210,422 Direct	-0.27%	Disposed	-98.1% (price as of 2026-08-19)
Feb. 29, 2024	BCAB	F	572	$2.70	$1,544	210,994 Direct	-0.27%	Disposed	-97.6% (price as of 2026-08-19)
Feb. 15, 2024	BCAB	A	122,000	—	—	211,566 Direct	+136.21%	Acquired	(price as of 2026-08-19)
Jan. 31, 2024	BCAB	F	657	$1.92	$1,261	89,566 Direct	-0.73%	Disposed	-96.6% (price as of 2026-08-19)
Dec. 31, 2023	BCAB	F	555	$2.46	$1,365	90,223 Direct	-0.61%	Disposed	-97.4% (price as of 2026-08-19)
Nov. 30, 2023	BCAB	F	554	$1.77	$981	90,778 Direct	-0.61%	Disposed	-96.4% (price as of 2026-08-19)
Oct. 31, 2023	BCAB	F	555	$1.47	$816	91,332 Direct	-0.60%	Disposed	-95.6% (price as of 2026-08-19)
Sept. 30, 2023	BCAB	F	554	$1.70	$942	91,887 Direct	-0.60%	Disposed	-96.2% (price as of 2026-08-19)
Aug. 31, 2023	BCAB	F	555	$2.51	$1,393	92,441 Direct	-0.60%	Disposed	-97.4% (price as of 2026-08-19)
July 31, 2023	BCAB	F	554	$2.99	$1,656	92,996 Direct	-0.59%	Disposed	-97.8% (price as of 2026-08-19)
June 30, 2023	BCAB	F	555	$3.00	$1,665	90,527 Direct	-0.61%	Disposed	-97.8% (price as of 2026-08-19)
May 31, 2023	BCAB	F	554	$3.15	$1,745	91,082 Direct	-0.60%	Disposed	-97.9% (price as of 2026-08-19)
April 30, 2023	BCAB	F	555	$3.37	$1,870	91,636 Direct	-0.60%	Disposed	-98.1% (price as of 2026-08-19)
March 31, 2023	BCAB	F	555	$2.68	$1,487	92,191 Direct	-0.60%	Disposed	-97.6% (price as of 2026-08-19)
Feb. 28, 2023	BCAB	F	554	$2.98	$1,651	92,746 Direct	-0.59%	Disposed	-97.8% (price as of 2026-08-19)
Feb. 9, 2023	BCAB	A	240,000	—	—	240,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 31, 2023	BCAB	F	654	$3.79	$2,479	93,300 Direct	-0.70%	Disposed	-98.3% (price as of 2026-08-19)
Dec. 31, 2022	BCAB	F	554	$8.25	$4,570	93,954 Direct	-0.59%	Disposed	-99.2% (price as of 2026-08-19)
Nov. 30, 2022	BCAB	F	555	$11.01	$6,111	94,508 Direct	-0.58%	Disposed	-99.4% (price as of 2026-08-19)
Oct. 31, 2022	BCAB	F	554	$6.89	$3,817	85,063 Direct	-0.65%	Disposed	-99.1% (price as of 2026-08-19)
Sept. 30, 2022	BCAB	F	555	$7.70	$4,274	85,617 Direct	-0.64%	Disposed	-99.2% (price as of 2026-08-19)
Aug. 31, 2022	BCAB	F	555	$8.71	$4,834	86,172 Direct	-0.64%	Disposed	-99.3% (price as of 2026-08-19)
July 31, 2022	BCAB	F	554	$3.40	$1,884	86,727 Direct	-0.63%	Disposed	-98.1% (price as of 2026-08-19)
June 30, 2022	BCAB	F	555	$2.85	$1,582	87,281 Direct	-0.63%	Disposed	-97.7% (price as of 2026-08-19)
May 31, 2022	BCAB	F	554	$2.41	$1,335	87,836 Direct	-0.63%	Disposed	-97.3% (price as of 2026-08-19)
April 30, 2022	BCAB	F	555	$3.48	$1,931	88,390 Direct	-0.62%	Disposed	-98.1% (price as of 2026-08-19)
March 31, 2022	BCAB	F	554	$5.00	$2,770	88,945 Direct	-0.62%	Disposed	-98.7% (price as of 2026-08-19)
Feb. 28, 2022	BCAB	F	555	$6.48	$3,596	89,499 Direct	-0.62%	Disposed	-99.0% (price as of 2026-08-19)
Feb. 21, 2022	BCAB	A	122,000	—	—	122,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 31, 2022	BCAB	F	657	$9.56	$6,281	90,054 Direct	-0.72%	Disposed	-99.3% (price as of 2026-08-19)
Dec. 31, 2021	BCAB	F	795	$19.63	$15,606	90,711 Direct	-0.87%	Disposed	-99.7% (price as of 2026-08-19)
Dec. 2, 2021	BCAB	S	16	$22.47	$360	91,506 Direct	-0.02%	Disposed	-99.7% (price as of 2026-08-19)
Dec. 2, 2021	BCAB	S	804	$21.74	$17,479	91,522 Direct	-0.87%	Disposed	-99.7% (price as of 2026-08-19)
Dec. 1, 2021	BCAB	S	21	$24.22	$509	92,326 Direct	-0.02%	Disposed	-99.7% (price as of 2026-08-19)
Dec. 1, 2021	BCAB	S	96	$23.27	$2,234	92,347 Direct	-0.10%	Disposed	-99.7% (price as of 2026-08-19)
Dec. 1, 2021	BCAB	S	56	$22.19	$1,243	92,443 Direct	-0.06%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 30, 2021	BCAB	S	20	$25.38	$508	92,499 Direct	-0.02%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 30, 2021	BCAB	S	58	$24.68	$1,431	92,519 Direct	-0.06%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 30, 2021	BCAB	S	53	$24.00	$1,272	92,577 Direct	-0.06%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 29, 2021	BCAB	S	110	$23.89	$2,628	92,630 Direct	-0.12%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 24, 2021	BCAB	S	37	$25.77	$953	92,740 Direct	-0.04%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 24, 2021	BCAB	S	44	$25.00	$1,100	92,777 Direct	-0.05%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 24, 2021	BCAB	S	48	$24.05	$1,154	92,821 Direct	-0.05%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 23, 2021	BCAB	S	68	$26.04	$1,771	92,869 Direct	-0.07%	Disposed	-99.8% (price as of 2026-08-19)
Nov. 23, 2021	BCAB	S	119	$24.28	$2,889	92,937 Direct	-0.13%	Disposed	-99.7% (price as of 2026-08-19)
Nov. 22, 2021	BCAB	S	118	$26.24	$3,096	93,056 Direct	-0.13%	Disposed	-99.8% (price as of 2026-08-19)
Oct. 1, 2021	BCAB	S	592	$30.39	$17,991	93,174 Direct	-0.63%	Disposed	-99.8% (price as of 2026-08-19)
Aug. 26, 2021	BCAB	S	6,883	$39.59	$272,498	93,766 Direct	-6.84%	Disposed	-99.8% (price as of 2026-08-19)
June 14, 2021	BCAB	J	23,726	—	—	100,649 Direct	+30.84%	Acquired	(price as of 2026-08-19)
Dec. 15, 2020	BCAB	A	77,471	—	—	77,471 Direct	—	Acquired	(price as of 2026-08-19)

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
Feb. 9, 2023	BCAB	Employee Stock Option (right to buy)	Common Stock (240,000)	$3.95	Feb. 9, 2033	240,000	Acquired
Feb. 21, 2022	BCAB	Employee Stock Option (right to buy)	Common Stock (122,000)	$6.75	Feb. 21, 2032	122,000	Acquired
Dec. 15, 2020	BCAB	Employee Stock Option (right to buy)	Common Stock (77,471)	$18.00	Dec. 15, 2030	77,471	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Dec. 15, 2020	BCAB	Common Stock	—	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

BCAB

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$530,630	—	$53,778	—	—	—	—	$584,408
2024	$510,220	—	$323,300	—	$127,555	—	—	$961,075
2023	$470,250	—	—	$662,256	$184,338	—	—	$1,316,844

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.