William W Featheringill

Insider

First SEC filing: May 23, 2008 · Latest: May 23, 2008

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

BCRX selling Dec. 1, 2009

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 8 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

8 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 13, 2010	BCRX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 1, 2009	BCRX	S	147,200	$8.06	$1,186,432	231,538 Indirect	-38.87%	Disposed	22.0% (price as of 2026-08-20)
Nov. 23, 2009	BCRX	S	13,800	$9.56	$131,928	378,738 Indirect	-3.52%	Disposed	2.9% (price as of 2026-08-20)
Nov. 20, 2009	BCRX	S	439,000	$9.65	$4,236,350	392,538 Indirect	-52.79%	Disposed	1.9% (price as of 2026-08-20)
April 30, 2009	BCRX	A	15,000	$3.96	$59,400	15,000 Direct	—	Acquired	148.4% (price as of 2026-08-20)
May 21, 2008	BCRX	A	15,000	$3.12	$46,800	15,000 Direct	—	Acquired	215.2% (price as of 2026-08-20)
Aug. 6, 2007	BCRX	P	315,985	$0.12	$37,918	315,985 Indirect	—	Acquired	8095.8% (price as of 2026-08-20)
Aug. 6, 2007	BCRX	P	831,538	$7.80	$6,485,996	831,538 Indirect	—	Acquired	26.1% (price as of 2026-08-20)
May 16, 2007	BCRX	A	15,000	$7.98	$119,700	15,000 Direct	—	Acquired	23.2% (price as of 2026-08-20)
Aug. 29, 2006	BCRX	G	60,000	$9.89	$593,400	1,797,572 Direct	-3.23%	Disposed	-0.6% (price as of 2026-08-20)
May 17, 2006	BCRX	A	15,000	$12.26	$183,900	15,000 Direct	—	Acquired	-19.8% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	200	$16.62	$3,324	925,000 Indirect	-0.02%	Disposed	-40.8% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	953	$16.61	$15,829	925,200 Indirect	-0.10%	Disposed	-40.8% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	347	$16.59	$5,757	926,153 Indirect	-0.04%	Disposed	-40.7% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	200	$16.58	$3,316	926,500 Indirect	-0.02%	Disposed	-40.7% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	385	$16.58	$6,383	926,700 Indirect	-0.04%	Disposed	-40.7% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	15	$16.57	$249	927,085 Indirect	0.00%	Disposed	-40.6% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	100	$16.56	$1,656	927,100 Indirect	-0.01%	Disposed	-40.6% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	2,600	$16.55	$43,030	927,200 Indirect	-0.28%	Disposed	-40.6% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	2,800	$16.54	$46,312	929,800 Indirect	-0.30%	Disposed	-40.5% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	550	$16.54	$9,097	932,600 Indirect	-0.06%	Disposed	-40.5% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	200	$16.53	$3,306	933,150 Indirect	-0.02%	Disposed	-40.5% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	200	$16.52	$3,304	933,350 Indirect	-0.02%	Disposed	-40.5% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	1,900	$16.52	$31,388	933,550 Indirect	-0.20%	Disposed	-40.5% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	1,050	$16.51	$17,336	935,450 Indirect	-0.11%	Disposed	-40.4% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	771	$16.51	$12,729	936,500 Indirect	-0.08%	Disposed	-40.4% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	829	$16.50	$13,678	937,271 Indirect	-0.09%	Disposed	-40.4% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	1,400	$16.34	$22,876	938,100 Indirect	-0.15%	Disposed	-39.8% (price as of 2026-08-20)
Feb. 10, 2006	BCRX	S	1,700	$16.20	$27,540	939,500 Indirect	-0.18%	Disposed	-39.3% (price as of 2026-08-20)
May 11, 2005	BCRX	A	10,000	$4.30	$43,000	102,500 Direct	+10.81%	Acquired	128.7% (price as of 2026-08-20)
May 12, 2004	BCRX	A	10,000	$8.83	$88,300	92,500 Direct	+12.12%	Acquired	11.4% (price as of 2026-08-20)
Nov. 2, 2000	BCRX	P	5,000	$9.00	$45,000	1,808,572 Direct	+0.28%	Acquired	9.3% (price as of 2026-08-20)
Nov. 1, 2000	BCRX	P	6,000	$9.00	$54,000	1,803,572 Direct	+0.33%	Acquired	9.3% (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
May 13, 2010	BCRX	Non-Qualified Stock Option [F1]	Common Stock (15,000)	$7.01	May 13, 2020	15,000	Acquired
April 30, 2009	BCRX	Non-Qualified Stock Option [F1]	Common Stock (15,000)	$3.96	April 30, 2019	15,000	Acquired
May 21, 2008	BCRX	Stock Option [F1]	Common Stock (15,000)	$3.12	May 21, 2018	15,000	Acquired
Aug. 6, 2007	BCRX	Warrants (Right to buy)	Common Stock (315,985)	$10.25	Aug. 6, 2012	315,985	Acquired
May 16, 2007	BCRX	Stock Option [F1]	Common Stock (15,000)	$7.98	May 16, 2017	15,000	Acquired
May 17, 2006	BCRX	Stock Option	Common Stock (15,000)	$12.26	May 17, 2016	15,000	Acquired
May 11, 2005	BCRX	Stock Option	Common Stock (10,000)	$4.30	May 11, 2015	10,000	Acquired
May 12, 2004	BCRX	Stock Option	Common Stock (10,000)	$8.83	May 12, 2014	10,000	Acquired

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