Lee Kalowski

Insider

First SEC filing: March 27, 2024 · Latest: March 27, 2024

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

Insider transactions

0 buys (P) 3 sells (S) Net: $-57,038 + 40 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

40 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 16, 2026	QTTB	A	53,250	—	—	142,443 Direct	+59.70%	Acquired	(price as of 2026-08-20)
Feb. 25, 2026	QTTB	S	3,995	$4.51	$18,017	35,943 Direct	-10.00%	Disposed	249.7% (price as of 2026-08-20)
Feb. 24, 2026	QTTB	A	53,250	—	—	89,193 Direct	+148.15%	Acquired	(price as of 2026-08-20)
Dec. 2, 2025	QTTB	S	9,072	$3.46	$31,389	39,938 Direct	-18.51%	Disposed	355.8% (price as of 2026-08-20)
Aug. 26, 2025	QTTB	S	4,240	$1.80	$7,632	49,010 Direct	-7.96%	Disposed	776.1% (price as of 2026-08-20)
Feb. 24, 2025	QTTB	A	161,323	—	—	161,323 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2025	QTTB	D	161,323	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 24, 2025	QTTB	A	16,901	—	—	16,901 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2025	QTTB	D	16,901	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 24, 2025	QTTB	A	53,250	—	—	53,250 Direct	—	Acquired	(price as of 2026-08-20)
March 25, 2024	QTTB	A	161,323	—	—	161,323 Direct	—	Acquired	(price as of 2026-08-20)
April 3, 2023	BCYC	S	376	$21.11	$7,937	30,309 Direct	-1.23%	Disposed	-80.8% (price as of 2026-08-20)
Jan. 3, 2023	BCYC	A	35,000	—	—	35,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 3, 2023	BCYC	S	1,815	$29.06	$52,744	30,685 Direct	-5.58%	Disposed	-86.0% (price as of 2026-08-20)
Jan. 3, 2023	BCYC	A	17,500	—	—	32,500 Direct	+116.67%	Acquired	(price as of 2026-08-20)
Jan. 3, 2022	BCYC	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 3, 2022	BCYC	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 2, 2021	BCYC	M 10b5-1	10,000	—	—	50,000 Direct	-16.67%	Disposed	(price as of 2026-08-20)
Sept. 2, 2021	BCYC	S 10b5-1	10,000	$40.00	$400,000	0 Direct	-100.00%	Disposed	-89.9% (price as of 2026-08-20)
Sept. 2, 2021	BCYC	M 10b5-1	10,000	$9.82	$98,200	10,000 Direct	—	Acquired	-58.7% (price as of 2026-08-20)
Aug. 27, 2021	BCYC	M 10b5-1	7,950	$8.73	$69,404	7,950 Direct	—	Acquired	-53.6% (price as of 2026-08-20)
Aug. 27, 2021	BCYC	S 10b5-1	7,950	$35.15	$279,442	0 Direct	-100.00%	Disposed	-88.5% (price as of 2026-08-20)
Aug. 27, 2021	BCYC	M 10b5-1	7,950	—	—	5,768 Direct	-57.95%	Disposed	(price as of 2026-08-20)
Aug. 26, 2021	BCYC	M 10b5-1	550	$8.76	$4,818	550 Direct	—	Acquired	-53.7% (price as of 2026-08-20)
Aug. 26, 2021	BCYC	S 10b5-1	550	$35.04	$19,272	0 Direct	-100.00%	Disposed	-88.4% (price as of 2026-08-20)
Aug. 26, 2021	BCYC	M 10b5-1	550	—	—	13,718 Direct	-3.85%	Disposed	(price as of 2026-08-20)
Aug. 23, 2021	BCYC	M 10b5-1	7,500	—	—	59,774 Direct	-11.15%	Disposed	(price as of 2026-08-20)
Aug. 23, 2021	BCYC	S 10b5-1	7,500	$33.02	$247,650	0 Direct	-100.00%	Disposed	-87.7% (price as of 2026-08-20)
Aug. 23, 2021	BCYC	M 10b5-1	7,500	$1.60	$12,000	7,500 Direct	—	Acquired	153.4% (price as of 2026-08-20)
July 29, 2021	BCYC	M 10b5-1	12,500	—	—	67,274 Direct	-15.67%	Disposed	(price as of 2026-08-20)
July 29, 2021	BCYC	S 10b5-1	300	$32.81	$9,843	0 Direct	-100.00%	Disposed	-87.6% (price as of 2026-08-20)
July 29, 2021	BCYC	S 10b5-1	3,204	$32.13	$102,945	300 Direct	-91.44%	Disposed	-87.4% (price as of 2026-08-20)
July 29, 2021	BCYC	S 10b5-1	8,996	$31.24	$281,035	3,504 Direct	-71.97%	Disposed	-87.0% (price as of 2026-08-20)
July 29, 2021	BCYC	M 10b5-1	12,500	$1.63	$20,375	12,500 Direct	—	Acquired	148.8% (price as of 2026-08-20)
Jan. 19, 2021	BCYC	M 10b5-1	15,000	—	—	79,774 Direct	-15.83%	Disposed	(price as of 2026-08-20)
Jan. 19, 2021	BCYC	S 10b5-1	15,000	$30.00	$450,000	0 Direct	-100.00%	Disposed	-86.5% (price as of 2026-08-20)
Jan. 19, 2021	BCYC	M 10b5-1	15,000	$1.59	$23,850	15,000 Direct	—	Acquired	155.0% (price as of 2026-08-20)
Jan. 14, 2021	BCYC	M 10b5-1	10,000	—	—	94,774 Direct	-9.54%	Disposed	(price as of 2026-08-20)
Jan. 14, 2021	BCYC	S 10b5-1	10,000	$25.00	$250,000	0 Direct	-100.00%	Disposed	-83.8% (price as of 2026-08-20)
Jan. 14, 2021	BCYC	M 10b5-1	10,000	$1.60	$16,000	10,000 Direct	—	Acquired	153.4% (price as of 2026-08-20)
Jan. 4, 2021	BCYC	A	70,500	—	—	70,500 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 1, 2020	BCYC	M 10b5-1	7,500	—	—	104,774 Direct	-6.68%	Disposed	(price as of 2026-08-20)
Dec. 1, 2020	BCYC	S 10b5-1	7,500	$22.50	$168,750	0 Direct	-100.00%	Disposed	-82.0% (price as of 2026-08-20)
Dec. 1, 2020	BCYC	M 10b5-1	7,500	$1.56	$11,700	7,500 Direct	—	Acquired	159.9% (price as of 2026-08-20)
Nov. 27, 2020	BCYC	M 10b5-1	530	—	—	112,274 Direct	-0.47%	Disposed	(price as of 2026-08-20)
Nov. 27, 2020	BCYC	S 10b5-1	530	$20.00	$10,600	0 Direct	-100.00%	Disposed	-79.7% (price as of 2026-08-20)
Nov. 27, 2020	BCYC	M 10b5-1	530	$1.56	$827	530 Direct	—	Acquired	159.9% (price as of 2026-08-20)
Nov. 25, 2020	BCYC	M 10b5-1	9,781	—	—	112,804 Direct	-7.98%	Disposed	(price as of 2026-08-20)
Nov. 25, 2020	BCYC	S 10b5-1	9,781	$20.07	$196,305	0 Direct	-100.00%	Disposed	-79.8% (price as of 2026-08-20)
Nov. 25, 2020	BCYC	M 10b5-1	9,781	$1.56	$15,258	9,781 Direct	—	Acquired	159.9% (price as of 2026-08-20)
Nov. 23, 2020	BCYC	M 10b5-1	17,189	—	—	122,585 Direct	-12.30%	Disposed	(price as of 2026-08-20)
Nov. 23, 2020	BCYC	S 10b5-1	213	$20.38	$4,341	0 Direct	-100.00%	Disposed	-80.1% (price as of 2026-08-20)
Nov. 23, 2020	BCYC	S 10b5-1	16,976	$19.82	$336,464	213 Direct	-98.76%	Disposed	-79.5% (price as of 2026-08-20)
Nov. 23, 2020	BCYC	M 10b5-1	17,189	$1.56	$26,815	17,189 Direct	—	Acquired	159.9% (price as of 2026-08-20)
Jan. 2, 2020	BCYC	A	60,000	—	—	60,000 Direct	—	Acquired	(price as of 2026-08-20)
June 28, 2019	BCYC	A	283,414	—	—	283,414 Direct	—	Acquired	(price as of 2026-08-20)
May 28, 2019	BCYC	A	283,414	—	—	283,414 Direct	—	Acquired	(price as of 2026-08-20)
April 2, 2015	ELDN	S 10b5-1	2,258	$11.45	$25,854	52,346 Direct	-4.14%	Disposed	-99.8% (price as of 2026-08-20)
Sept. 17, 2014	ELDN	A	218,417	—	—	218,417 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 17, 2014	ELDN	A	54,604	—	—	54,604 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.

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. 24, 2025	QTTB	Stock Option (Right to Buy)	Common Stock (161,323)	—	Oct. 12, 2033	161,323	Acquired
Feb. 24, 2025	QTTB	Stock Option (Right to Buy)	Common Stock (161,323)	$16.82	Oct. 12, 2033	161,323	Disposed
Feb. 24, 2025	QTTB	Stock Option (Right to Buy)	Common Stock (16,901)	—	Nov. 8, 2033	16,901	Acquired
Feb. 24, 2025	QTTB	Stock Option (Right to Buy)	Common Stock (16,901)	$17.08	Nov. 8, 2033	16,901	Disposed
March 25, 2024	QTTB	Stock Option (Right to Buy)	Common Stock (161,323)	$16.82	Oct. 12, 2033	161,323	Acquired
Jan. 3, 2023	BCYC	Employee Stock Option (right to buy)	Ordinary Shares (35,000)	$29.60	Jan. 3, 2033	35,000	Acquired
Jan. 3, 2022	BCYC	Employee Stock Option (right to buy)	Ordinary Shares (30,000)	$60.87	Jan. 3, 2032	30,000	Acquired
Sept. 2, 2021	BCYC	Employee Stock Option (right to buy)	Ordinary Shares (10,000)	$9.82	Jan. 2, 2030	10,000	Disposed
Aug. 27, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (7,950)	—	March 7, 2029	7,950	Disposed
Aug. 26, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (550)	—	March 7, 2029	550	Disposed
Aug. 23, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (7,500)	—	July 23, 2027	7,500	Disposed
July 29, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (12,500)	—	July 23, 2027	12,500	Disposed
Jan. 19, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (15,000)	—	July 23, 2027	15,000	Disposed
Jan. 14, 2021	BCYC	Stock Option (Right to Buy)	Ordinary Shares (10,000)	—	July 23, 2027	10,000	Disposed
Jan. 4, 2021	BCYC	Employee Stock Option (right to buy)	Common Stock (70,500)	$17.95	Jan. 4, 2031	70,500	Acquired
Dec. 1, 2020	BCYC	Stock Option (Right to Buy)	Ordinary Shares (7,500)	—	July 23, 2027	7,500	Disposed
Nov. 27, 2020	BCYC	Stock Option (Right to Buy)	Ordinary Shares (530)	—	July 23, 2027	530	Disposed
Nov. 25, 2020	BCYC	Stock Option (Right to Buy)	Ordinary Shares (9,781)	—	July 23, 2027	9,781	Disposed
Nov. 23, 2020	BCYC	Stock Option (Right to Buy)	Ordinary Shares (17,189)	—	July 23, 2027	17,189	Disposed
Jan. 2, 2020	BCYC	Employee Stock Option (right to buy)	Ordinary Shares (60,000)	$9.82	Jan. 2, 2030	60,000	Acquired
June 28, 2019	BCYC	Stock Option (Right to Buy)	Ordinary Shares (283,414)	$14.00	June 28, 2029	283,414	Acquired
May 28, 2019	BCYC	Stock Option (Right to Buy)	Ordinary Shares (283,414)	$14.00	May 28, 2029	283,414	Acquired
Sept. 17, 2014	ELDN	Stock Option (right to buy)	Common Stock (218,417)	$15.00	Sept. 17, 2024	218,417	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
March 27, 2024	QTTB	Stock Option (Right to Buy)→ Common Stock (16,901)	16,901	Direct
May 22, 2019	BCYC	Stock Option (Right to Buy)→ Ordinary Shares (139,774)	139,774	Direct
May 22, 2019	BCYC	Stock Option (Right to Buy)→ Ordinary Shares (14,268)	14,268	Direct

Compensation (DEF 14A)

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

ELDN

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2016	$320,000	—	—	—	—	—	$114,374	$434,374
2014	$110,656	$91,027	—	—	—	—	$20	$3,290,581

QTTB

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$565,000	—	—	—	$226,000	—	$1,770	$987,147
2024	$432,442	—	—	—	$146,900	—	$171,451	$2,854,009

BCYC

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2019	$416,568	—	—	$1,826,955	$237,610	—	—	$2,481,133

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