Thomas W Mitchell

Insider

First SEC filing: Jan. 15, 2015 · Latest: Jan. 15, 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.

Insider at

NBIX selling June 23, 2015

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 34 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

34 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 23, 2015	NBIX	M	15,000	$6.66	$99,900	0 Direct	-100.00%	Disposed	2234.4% (price as of 2026-08-19)
June 23, 2015	NBIX	S 10b5-1	15,000	$49.35	$740,250	1,000 Direct	-93.75%	Disposed	215.0% (price as of 2026-08-19)
June 23, 2015	NBIX	M	15,000	$6.66	$99,900	16,000 Direct	+1500.00%	Acquired	2234.4% (price as of 2026-08-19)
May 28, 2015	NBIX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-19)
May 28, 2015	NBIX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$7.05	$105,750	0 Direct	-100.00%	Disposed	2105.3% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$3.40	$51,000	0 Direct	-100.00%	Disposed	4472.7% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$3.07	$46,050	0 Direct	-100.00%	Disposed	4964.3% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	S 10b5-1	45,000	$30.07	$1,353,150	1,000 Direct	-97.83%	Disposed	417.0% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$7.05	$105,750	46,000 Direct	+48.39%	Acquired	2105.3% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$3.40	$51,000	31,000 Direct	+93.75%	Acquired	4472.7% (price as of 2026-08-19)
Jan. 13, 2015	NBIX	M	15,000	$3.07	$46,050	16,000 Direct	+1500.00%	Acquired	4964.3% (price as of 2026-08-19)
Jan. 2, 2015	NBIX	M	8,000	$4.76	$38,080	0 Direct	-100.00%	Disposed	3166.2% (price as of 2026-08-19)
Jan. 2, 2015	NBIX	S 10b5-1	8,000	$22.79	$182,320	1,000 Direct	-88.89%	Disposed	582.2% (price as of 2026-08-19)
Jan. 2, 2015	NBIX	M	8,000	$4.76	$38,080	9,000 Direct	+800.00%	Acquired	3166.2% (price as of 2026-08-19)
Dec. 10, 2014	NBIX	M	7,000	$4.76	$33,320	8,000 Direct	-46.67%	Disposed	3166.2% (price as of 2026-08-19)
Dec. 10, 2014	NBIX	S 10b5-1	7,000	$21.90	$153,300	1,000 Direct	-87.50%	Disposed	609.9% (price as of 2026-08-19)
Dec. 10, 2014	NBIX	M	7,000	$4.76	$33,320	8,000 Direct	+700.00%	Acquired	3166.2% (price as of 2026-08-19)
Oct. 1, 2014	NBIX	S 10b5-1	1,275	$15.50	$19,762	1,000 Direct	-56.04%	Disposed	903.0% (price as of 2026-08-19)
May 22, 2014	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
April 16, 2014	NBIX	M	12,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 16, 2014	NBIX	F	10,725	$13.84	$148,434	2,275 Direct	-82.50%	Disposed	1023.4% (price as of 2026-08-19)
April 16, 2014	NBIX	M	12,000	$12.37	$148,440	13,000 Direct	+1200.00%	Acquired	1156.9% (price as of 2026-08-19)
Aug. 6, 2013	NBIX	S 10b5-1	1,531	$14.70	$22,506	1,000 Direct	-60.49%	Disposed	957.6% (price as of 2026-08-19)
May 23, 2013	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
March 28, 2013	NBIX	M	12,000	$10.60	$127,200	13,000 Direct	+1200.00%	Acquired	1366.7% (price as of 2026-08-19)
March 28, 2013	NBIX	M	12,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 28, 2013	NBIX	F	10,469	$12.15	$127,198	2,531 Direct	-80.53%	Disposed	1179.6% (price as of 2026-08-19)
Dec. 5, 2012	NBIX	S 10b5-1	900	$7.41	$6,669	1,000 Indirect	-47.37%	Disposed	1998.1% (price as of 2026-08-19)
May 23, 2012	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
May 25, 2011	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
May 25, 2010	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 5, 2009	NBIX	P	900	$2.17	$1,953	1,900 Indirect	+90.00%	Acquired	7064.6% (price as of 2026-08-19)
Aug. 28, 2009	NBIX	D	12,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Aug. 28, 2009	NBIX	D	12,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 29, 2009	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
May 28, 2008	NBIX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-19)
Oct. 24, 2007	NBIX	D	12,000	$0.01	$120	0 Direct	-100.00%	Disposed	1554625.0% (price as of 2026-08-19)
June 1, 2007	NBIX	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-19)
June 30, 2006	NBIX	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-19)
May 25, 2005	NBIX	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 9, 2004	NBIX	P	1,000	$41.18	$41,180	1,000 Direct	—	Acquired	277.5% (price as of 2026-08-19)
May 26, 2004	NBIX	A	12,000	$57.51	$690,120	12,000 Direct	—	Acquired	170.3% (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
June 23, 2015	NBIX	Non-qualified Stock Option	Common Stock (15,000)	$6.66	May 23, 2022	15,000	Disposed
May 28, 2015	NBIX	Stock Option [F1]	Common Stock (25,000)	$42.76	May 27, 2025	25,000	Acquired
May 28, 2015	NBIX	Stock Option [F1]	Common Stock (25,000)	$42.76	May 27, 2025	25,000	Acquired
Jan. 13, 2015	NBIX	Nonqualified Stock Option	Common Stock (15,000)	$7.05	May 25, 2018	15,000	Disposed
Jan. 13, 2015	NBIX	Nonqualified Stock Option	Common Stock (15,000)	$3.40	May 25, 2017	15,000	Disposed
Jan. 13, 2015	NBIX	Nonqualified Stock Option	Common Stock (15,000)	$3.07	May 29, 2016	15,000	Disposed
Jan. 2, 2015	NBIX	Nonstatutory Stock Option	Common Stock (8,000)	$4.76	May 25, 2015	8,000	Disposed
Dec. 10, 2014	NBIX	Nonstatutory Stock Option	Common Stock (7,000)	$4.76	May 25, 2015	7,000	Disposed
May 22, 2014	NBIX	Stock Option [F1]	Common Stock (15,000)	$12.98	May 22, 2024	15,000	Acquired
April 16, 2014	NBIX	Stock Option	Common Stock (12,000)	$12.37	June 1, 2014	12,000	Disposed
May 23, 2013	NBIX	Stock Option [F1]	Common Stock (15,000)	$12.71	May 23, 2023	15,000	Acquired
March 28, 2013	NBIX	Stock Option	Common Stock (12,000)	$10.60	June 30, 2013	12,000	Disposed
May 23, 2012	NBIX	Stock Option [F1]	Common Stock (15,000)	$6.66	May 23, 2022	15,000	Acquired
May 25, 2011	NBIX	Stock Option [F1]	Common Stock (15,000)	$7.05	May 25, 2018	15,000	Acquired
May 25, 2010	NBIX	Stock Option [F1]	Common Stock (15,000)	$3.40	May 25, 2017	15,000	Acquired
Aug. 28, 2009	NBIX	Stock Option (right to buy)	Common Stock (12,000)	$37.37	May 25, 2015	12,000	Disposed
Aug. 28, 2009	NBIX	Stock Option (right to buy)	Common Stock (12,000)	$48.51	May 22, 2013	12,000	Disposed
May 29, 2009	NBIX	Stock Option [F1]	Common Stock (15,000)	$3.07	May 29, 2016	15,000	Acquired
May 28, 2008	NBIX	Stock Option [F1]	Common Stock (15,000)	$4.76	May 28, 2015	15,000	Acquired
Oct. 24, 2007	NBIX	Stock Option (right to buy)	Common Stock (12,000)	$57.51	May 26, 2014	12,000	Disposed
June 1, 2007	NBIX	Stock Option [F1]	Common Stock (12,000)	$12.37	June 1, 2014	12,000	Acquired
June 30, 2006	NBIX	Stock Option [F1]	Common Stock (12,000)	$10.60	June 30, 2013	12,000	Acquired
May 25, 2005	NBIX	Stock Option [F1]	Common Stock (12,000)	$37.37	May 25, 2015	12,000	Acquired
May 26, 2004	NBIX	Stock Option [F1]	Common Stock (12,000)	$57.51	May 26, 2014	12,000	Acquired

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