Carl B Feldbaum

Insider

First SEC filing: Jan. 6, 2015 · Latest: Jan. 6, 2015

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 + 59 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

59 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 9, 2023	EXEL	M	40,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 9, 2023	EXEL	S	40,000	$17.78	$711,200	18,701 Direct	-68.14%	Disposed	204.9% (price as of 2026-08-20)
Feb. 9, 2023	EXEL	M	40,000	$6.30	$252,000	58,701 Direct	+213.89%	Acquired	760.6% (price as of 2026-08-20)
May 26, 2022	EXEL	A	20,360	—	—	20,360 Direct	—	Acquired	(price as of 2026-08-20)
May 26, 2022	EXEL	A	10,180	—	—	18,701 Direct	+119.47%	Acquired	(price as of 2026-08-20)
Feb. 22, 2022	EXEL	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 22, 2022	EXEL	S	20,000	$19.49	$389,800	8,521 Direct	-70.12%	Disposed	178.2% (price as of 2026-08-20)
Feb. 22, 2022	EXEL	M	20,000	$3.13	$62,600	28,521 Direct	+234.71%	Acquired	1632.1% (price as of 2026-08-20)
Nov. 19, 2021	EXEL	M	20,000	—	—	20,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Nov. 19, 2021	EXEL	S	20,000	$17.62	$352,400	8,521 Direct	-70.12%	Disposed	207.7% (price as of 2026-08-20)
Nov. 19, 2021	EXEL	M	20,000	$3.13	$62,600	28,521 Direct	+234.71%	Acquired	1632.1% (price as of 2026-08-20)
May 27, 2021	EXEL	A	33,549	—	—	33,549 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 16, 2021	EXEL	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 16, 2021	EXEL	S	20,000	$21.96	$439,200	8,521 Direct	-70.12%	Disposed	146.9% (price as of 2026-08-20)
Feb. 16, 2021	EXEL	M	20,000	$3.38	$67,600	28,521 Direct	+234.71%	Acquired	1504.0% (price as of 2026-08-20)
May 21, 2020	EXEL	A	30,750	—	—	30,750 Direct	—	Acquired	(price as of 2026-08-20)
May 7, 2020	EXEL	M	20,000	—	—	20,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 7, 2020	EXEL	M	11,546	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 7, 2020	EXEL	S	31,546	$25.02	$789,281	8,521 Direct	-78.73%	Disposed	116.7% (price as of 2026-08-20)
May 7, 2020	EXEL	M	20,000	$3.38	$67,600	40,067 Direct	+99.67%	Acquired	1504.0% (price as of 2026-08-20)
May 7, 2020	EXEL	M	11,546	$5.82	$67,198	20,067 Direct	+135.50%	Acquired	831.5% (price as of 2026-08-20)
March 3, 2020	EXEL	M	6,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 3, 2020	EXEL	M	32,000	—	—	11,546 Direct	-73.49%	Disposed	(price as of 2026-08-20)
March 3, 2020	EXEL	S	653	$18.41	$12,022	8,521 Direct	-7.12%	Disposed	194.5% (price as of 2026-08-20)
March 3, 2020	EXEL	S	37,347	$18.85	$703,991	9,174 Direct	-80.28%	Disposed	187.6% (price as of 2026-08-20)
March 3, 2020	EXEL	M	6,000	$4.58	$27,480	46,521 Direct	+14.81%	Acquired	1083.7% (price as of 2026-08-20)
March 3, 2020	EXEL	M	32,000	$5.82	$186,240	40,521 Direct	+375.54%	Acquired	831.5% (price as of 2026-08-20)
May 23, 2019	EXEL	A	42,641	—	—	42,641 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 15, 2019	EXEL	G	6,700	—	—	8,521 Direct	-44.02%	Disposed	(price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	24,000	—	—	6,000 Direct	-80.00%	Disposed	(price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	11,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 14, 2019	EXEL	S	50,500	$22.03	$1,112,515	15,221 Direct	-76.84%	Disposed	146.1% (price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	24,000	$4.58	$109,920	65,721 Direct	+57.52%	Acquired	1083.7% (price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	11,500	$4.57	$52,555	41,721 Direct	+38.05%	Acquired	1086.3% (price as of 2026-08-20)
Feb. 14, 2019	EXEL	M	15,000	$5.92	$88,800	30,221 Direct	+98.55%	Acquired	815.8% (price as of 2026-08-20)
May 30, 2018	EXEL	M	3,500	—	—	11,500 Direct	-23.33%	Disposed	(price as of 2026-08-20)
May 30, 2018	EXEL	M	11,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 30, 2018	EXEL	S	34,262	$20.60	$705,797	15,221 Direct	-69.24%	Disposed	163.2% (price as of 2026-08-20)
May 30, 2018	EXEL	M	3,500	$4.57	$15,995	49,483 Direct	+7.61%	Acquired	1086.3% (price as of 2026-08-20)
May 30, 2018	EXEL	M	11,250	$4.16	$46,800	45,983 Direct	+32.39%	Acquired	1203.2% (price as of 2026-08-20)
May 24, 2018	EXEL	A	31,167	—	—	31,167 Direct	—	Acquired	(price as of 2026-08-20)
March 5, 2018	EXEL	M	11,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 5, 2018	EXEL	S	11,000	$23.88	$262,680	34,733 Direct	-24.05%	Disposed	127.0% (price as of 2026-08-20)
March 5, 2018	EXEL	M	11,000	$11.66	$128,260	45,733 Direct	+31.67%	Acquired	365.0% (price as of 2026-08-20)
May 25, 2017	EXEL	A	23,491	—	—	23,491 Direct	—	Acquired	(price as of 2026-08-20)
May 15, 2017	EXEL	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 15, 2017	EXEL	M	4,000	—	—	11,000 Direct	-26.67%	Disposed	(price as of 2026-08-20)
May 15, 2017	EXEL	S	13,988	$21.59	$302,001	34,733 Direct	-28.71%	Disposed	151.1% (price as of 2026-08-20)
May 15, 2017	EXEL	S	19,000	$21.57	$409,830	48,721 Direct	-28.06%	Disposed	151.3% (price as of 2026-08-20)
May 15, 2017	EXEL	M	15,000	$7.97	$119,550	67,721 Direct	+28.45%	Acquired	580.2% (price as of 2026-08-20)
May 15, 2017	EXEL	M	4,000	$11.66	$46,640	52,721 Direct	+8.21%	Acquired	365.0% (price as of 2026-08-20)
March 20, 2017	EXEL	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 20, 2017	EXEL	S	10,000	$21.77	$217,700	48,721 Direct	-17.03%	Disposed	149.0% (price as of 2026-08-20)
March 20, 2017	EXEL	M	10,000	$10.53	$105,300	58,721 Direct	+20.53%	Acquired	414.9% (price as of 2026-08-20)
Dec. 16, 2016	EXEL	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 16, 2016	EXEL	S	25,000	$17.03	$425,750	48,721 Direct	-33.91%	Disposed	218.3% (price as of 2026-08-20)
Dec. 16, 2016	EXEL	M	25,000	$10.41	$260,250	73,721 Direct	+51.31%	Acquired	420.8% (price as of 2026-08-20)
May 26, 2016	EXEL	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 4, 2016	EXEL	A	8,688	—	—	48,721 Direct	+21.70%	Acquired	(price as of 2026-08-20)
May 28, 2015	EXEL	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-20)
March 17, 2015	CRDF	A	16,000	—	—	40,000 Direct	+66.67%	Acquired	(price as of 2026-08-20)
Oct. 14, 2014	EXEL	A	40,033	—	—	40,033 Direct	—	Acquired	(price as of 2026-08-20)
May 29, 2014	EXEL	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 6, 2013	EXEL	A	43,546	—	—	43,546 Direct	—	Acquired	(price as of 2026-08-20)
May 23, 2013	EXEL	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
May 24, 2012	EXEL	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 19, 2011	EXEL	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 19, 2010	EXEL	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 14, 2009	EXEL	A	11,250	—	—	11,250 Direct	—	Acquired	(price as of 2026-08-20)
May 2, 2008	EXEL	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 2, 2007	EXEL	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 8, 2007	EXEL	A	25,000	—	—	25,000 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. 9, 2023	EXEL	Option (right to buy)	Common Stock (40,000)	$6.30	May 25, 2023	40,000	Disposed
May 26, 2022	EXEL	Option (right to buy)	Common Stock (20,360)	$18.19	May 25, 2029	20,360	Acquired
Feb. 22, 2022	EXEL	Option (right to buy)	Common Stock (20,000)	$3.13	May 27, 2022	20,000	Disposed
Nov. 19, 2021	EXEL	Option (right to buy)	Common Stock (20,000)	$3.13	May 27, 2022	20,000	Disposed
May 27, 2021	EXEL	Option (right to buy)	Common Stock (33,549)	$22.48	May 26, 2028	33,549	Acquired
Feb. 16, 2021	EXEL	Option (right to buy)	Common Stock (20,000)	$3.38	May 28, 2021	20,000	Disposed
May 21, 2020	EXEL	Option (right to buy)	Common Stock (30,750)	$24.62	May 20, 2027	30,750	Acquired
May 7, 2020	EXEL	Option (right to buy)	Common Stock (20,000)	$3.38	May 28, 2021	20,000	Disposed
May 7, 2020	EXEL	Option (right to buy)	Common Stock (11,546)	$5.82	Dec. 5, 2020	11,546	Disposed
March 3, 2020	EXEL	Option (right to buy)	Common Stock (6,000)	$4.58	May 22, 2020	6,000	Disposed
March 3, 2020	EXEL	Option (right to buy)	Common Stock (32,000)	$5.82	Dec. 5, 2020	32,000	Disposed
May 23, 2019	EXEL	Option (right to buy)	Common Stock (42,641)	$19.77	May 22, 2026	42,641	Acquired
Feb. 14, 2019	EXEL	Option (right to buy)	Common Stock (24,000)	$4.58	May 22, 2020	24,000	Disposed
Feb. 14, 2019	EXEL	Option (right to buy)	Common Stock (11,500)	$4.57	May 23, 2019	11,500	Disposed
Feb. 14, 2019	EXEL	Option (right to buy)	Common Stock (15,000)	$5.92	May 18, 2020	15,000	Disposed
May 30, 2018	EXEL	Option (right to buy)	Common Stock (3,500)	$4.57	May 23, 2019	3,500	Disposed
May 30, 2018	EXEL	Option (right to buy)	Common Stock (11,250)	$4.16	May 13, 2019	11,250	Disposed
May 24, 2018	EXEL	Option (right to buy)	Common Stock (31,167)	$20.50	May 23, 2025	31,167	Acquired
March 5, 2018	EXEL	Option (right to buy)	Common Stock (11,000)	$11.66	May 18, 2018	11,000	Disposed
May 25, 2017	EXEL	Option (right to buy)	Common Stock (23,491)	$19.57	May 24, 2024	23,491	Acquired
May 15, 2017	EXEL	Option (right to buy)	Common Stock (15,000)	$7.97	May 1, 2018	15,000	Disposed
May 15, 2017	EXEL	Option (right to buy)	Common Stock (4,000)	$11.66	May 18, 2018	4,000	Disposed
March 20, 2017	EXEL	Option (right to buy)	Common Stock (10,000)	$10.53	May 1, 2017	10,000	Disposed
Dec. 16, 2016	EXEL	Option (right to buy)	Common Stock (25,000)	$10.41	Feb. 7, 2017	25,000	Disposed
May 26, 2016	EXEL	Option (right to buy)	Common Stock (40,000)	$6.30	May 25, 2023	40,000	Acquired
May 28, 2015	EXEL	Option (right to buy)	Common Stock (40,000)	$3.13	May 27, 2022	40,000	Acquired
March 17, 2015	CRDF	Stock Options	Common Stock (16,000)	$7.18	March 17, 2025	16,000	Acquired
May 29, 2014	EXEL	Option (right to buy)	Common Stock (40,000)	$3.38	May 28, 2021	40,000	Acquired
Dec. 6, 2013	EXEL	Option (right to buy)	Common Stock (43,546)	$5.82	Dec. 5, 2020	43,546	Acquired
May 23, 2013	EXEL	Option (right to buy)	Common Stock (30,000)	$4.58	May 22, 2020	30,000	Acquired
May 24, 2012	EXEL	Option (right to buy)	Common Stock (15,000)	$4.57	May 23, 2019	15,000	Acquired
May 19, 2011	EXEL	Option (right to buy)	Common Stock (15,000)	$11.66	May 18, 2018	15,000	Acquired
May 19, 2010	EXEL	Option (right to buy)	Common Stock (15,000)	$5.92	May 18, 2020	15,000	Acquired
May 14, 2009	EXEL	Option (right to buy)	Common Stock (11,250)	$4.16	May 13, 2019	11,250	Acquired
May 2, 2008	EXEL	Option (right to buy)	Common Stock (15,000)	$7.97	May 1, 2018	15,000	Acquired
May 2, 2007	EXEL	Option (right to buy)	Common Stock (10,000)	$10.53	May 1, 2017	10,000	Acquired
Feb. 8, 2007	EXEL	Option (right to buy)	Common Stock (25,000)	$10.41	Feb. 7, 2017	25,000	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
Jan. 6, 2015	CRDF	Stock Options→ Common Stock (24,000)	24,000	Direct