Robert J Little — SEC Insider Profile, Roles & Companies

Insider at

04

NBIX HALO buying March 20, 2008

Insider transactions

05

0 buys (P) 0 sells (S) Net: $0 + 7 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

7 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 4, 2010	HALO	A	20,424	$5.55	$113,353	20,424 Direct	·	Acquired	1879.5% (price as of 2026-10-02)
Feb. 4, 2010	HALO	A	7,576	$5.55	$42,047	7,576 Direct	·	Acquired	1879.5% (price as of 2026-10-02)
Feb. 5, 2009	HALO	A	20,000	$6.10	$122,000	259,661 Direct	+8.35%	Acquired	1701.0% (price as of 2026-10-02)
March 20, 2008	HALO	P	3,800	$5.96	$22,648	7,800 Direct	+95.00%	Acquired	1743.3% (price as of 2026-10-02)
March 20, 2008	HALO	P	2,000	$5.97	$11,940	9,800 Direct	+25.64%	Acquired	1740.2% (price as of 2026-10-02)
March 20, 2008	HALO	P	200	$5.98	$1,196	10,000 Direct	+2.04%	Acquired	1737.1% (price as of 2026-10-02)
March 20, 2008	HALO	P	3,000	$5.99	$17,970	13,000 Direct	+30.00%	Acquired	1734.1% (price as of 2026-10-02)
Feb. 6, 2008	HALO	A	28,800	$5.60	$161,280	239,661 Direct	+13.66%	Acquired	1861.8% (price as of 2026-10-02)
March 19, 2007	HALO	P	400	$8.62	$3,448	4,000 Direct	-9.09%	Disposed	1174.5% (price as of 2026-10-02)
March 19, 2007	HALO	P	400	$8.63	$3,452	3,600 Direct	-10.00%	Disposed	1173.0% (price as of 2026-10-02)
March 19, 2007	HALO	P	3,200	$8.65	$27,680	3,200 Direct	·	Acquired	1170.1% (price as of 2026-10-02)
March 19, 2007	HALO	P	400	$8.62	$3,448	4,000 Direct	+11.11%	Acquired	1174.5% (price as of 2026-10-02)
March 19, 2007	HALO	P	400	$8.63	$3,452	3,600 Direct	+12.50%	Acquired	1173.0% (price as of 2026-10-02)
March 19, 2007	HALO	P	3,200	$8.65	$27,680	3,200 Direct	·	Acquired	1170.1% (price as of 2026-10-02)
Feb. 5, 2007	HALO	A	10,861	$7.51	$81,566	210,861 Direct	+5.43%	Acquired	1362.8% (price as of 2026-10-02)
Feb. 18, 2005	NBIX	A	15,000	$40.39	$605,850	15,000 Direct	·	Acquired	254.5% (price as of 2026-10-02)
May 26, 2004	NBIX	A	20,000	$57.51	$1,150,200	20,000 Direct	·	Acquired	149.0% (price as of 2026-10-02)

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.

06

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 4, 2010	HALO	Option to Purchase Common Stock (ISO)	Common Stock (20,424)	$5.55	Feb. 4, 2020	20,424	Acquired
Feb. 4, 2010	HALO	Option to Purchase Common Stock (NSO)	Common Stock (7,576)	$5.55	Feb. 4, 2020	7,576	Acquired
Feb. 5, 2009	HALO	Option to Purchase Common Stock	Common Stock (20,000)	$6.10	Feb. 5, 2019	20,000	Acquired
Feb. 6, 2008	HALO	Option to Purchase Common Stock	Common Stock (28,800)	$5.60	Feb. 6, 2018	28,800	Acquired
Feb. 5, 2007	HALO	Option to Purchase Common Stock	Common (10,861)	$7.51	Feb. 5, 2017	10,861	Acquired
Feb. 18, 2005	NBIX	Stock Option [F1]	Common Stock (15,000)	$40.39	Feb. 18, 2015	15,000	Acquired
May 26, 2004	NBIX	Stock Option [F1]	Common Stock (20,000)	$57.51	May 26, 2014	20,000	Acquired

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

Initial ownership (Form 3) 1 holding

07

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

Date	Ticker	Security	Shares	Ownership
July 31, 2006	HALO	Option to Purchase Common Stock→ Common (200,000)	200,000	Direct