Neil Underberg

Insider

First SEC filing: Aug. 26, 2004 · Latest: Aug. 26, 2004

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

ALX selling Aug. 18, 2008

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 24 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

24 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 19, 2016	ALX	A	203	—	—	1,094 Direct	+22.78%	Acquired	(price as of 2026-08-20)
May 21, 2015	ALX	A	176	—	—	891 Direct	+24.62%	Acquired	(price as of 2026-08-20)
May 22, 2014	ALX	A	212	—	—	715 Direct	+42.15%	Acquired	(price as of 2026-08-20)
May 23, 2013	ALX	A	243	—	—	503 Direct	+93.46%	Acquired	(price as of 2026-08-20)
May 24, 2012	ALX	A	129	—	—	260 Direct	+98.47%	Acquired	(price as of 2026-08-20)
May 26, 2011	ALX	A	131	—	—	131 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 18, 2008	ALX	S	118	$395.00	$46,610	982 Direct	-10.73%	Disposed	-31.3% (price as of 2026-08-20)
Aug. 15, 2008	ALX	M	1,400	$70.38	$98,532	0 Direct	-100.00%	Disposed	285.6% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	100	$397.05	$39,705	1,100 Direct	-8.33%	Disposed	-31.6% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	100	$396.06	$39,606	1,200 Direct	-7.69%	Disposed	-31.5% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	300	$395.85	$118,755	1,300 Direct	-18.75%	Disposed	-31.4% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	100	$395.44	$39,544	1,600 Direct	-5.88%	Disposed	-31.4% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	100	$395.35	$39,535	1,700 Direct	-5.56%	Disposed	-31.4% (price as of 2026-08-20)
Aug. 15, 2008	ALX	S	100	$395.00	$39,500	1,800 Direct	-5.26%	Disposed	-31.3% (price as of 2026-08-20)
Aug. 15, 2008	ALX	M	1,400	$70.38	$98,532	1,900 Direct	+280.00%	Acquired	285.6% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	100	$426.75	$42,675	500 Direct	-16.67%	Disposed	-36.4% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	200	$426.25	$85,250	600 Direct	-25.00%	Disposed	-36.3% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	200	$426.00	$85,200	800 Direct	-20.00%	Disposed	-36.3% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	200	$425.50	$85,100	1,000 Direct	-16.67%	Disposed	-36.2% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	200	$425.55	$85,110	1,200 Direct	-14.29%	Disposed	-36.2% (price as of 2026-08-20)
Jan. 4, 2007	ALX	S	100	$424.55	$42,455	1,400 Direct	-6.67%	Disposed	-36.1% (price as of 2026-08-20)
Jan. 4, 2007	ALX	M	1,000	$70.38	$70,380	1,500 Direct	+200.00%	Acquired	285.6% (price as of 2026-08-20)
Jan. 4, 2006	ALX	M	1,000	$70.38	$70,380	1,400 Direct	-41.67%	Disposed	285.6% (price as of 2026-08-20)
April 8, 2005	ALX	M	1,600	$70.38	$112,608	2,100 Direct	+320.00%	Acquired	285.6% (price as of 2026-08-20)
April 8, 2005	ALX	S	1,600	$250.31	$400,496	500 Direct	-76.19%	Disposed	8.4% (price as of 2026-08-20)
April 8, 2005	ALX	M	1,600	$70.38	$112,608	2,400 Direct	-40.00%	Disposed	285.6% (price as of 2026-08-20)
March 3, 2005	ALX	M	1,000	$70.38	$70,380	1,500 Direct	+200.00%	Acquired	285.6% (price as of 2026-08-20)
March 3, 2005	ALX	M	1,000	$70.38	$70,380	4,000 Direct	+33.33%	Acquired	285.6% (price as of 2026-08-20)
March 3, 2005	ALX	S	1,000	$250.20	$250,200	500 Direct	—	Acquired	8.5% (price as of 2026-08-20)
Aug. 24, 2004	ALX	S	2,000	$180.00	$360,000	500 Direct	-80.00%	Disposed	50.8% (price as of 2026-08-20)
Aug. 24, 2004	ALX	M	2,000	$70.38	$140,760	2,500 Direct	+400.00%	Acquired	285.6% (price as of 2026-08-20)
Aug. 24, 2004	ALX	M	2,000	$70.38	$140,760	5,000 Direct	-28.57%	Disposed	285.6% (price as of 2026-08-20)
May 27, 2004	ALX	S	1,000	$161.55	$161,550	500 Direct	-66.67%	Disposed	68.0% (price as of 2026-08-20)
May 27, 2004	ALX	S	1,000	$161.55	$161,550	500 Direct	—	Acquired	68.0% (price as of 2026-08-20)
May 27, 2004	ALX	S	1,000	$161.55	$161,550	500 Direct	-66.67%	Disposed	68.0% (price as of 2026-08-20)
May 26, 2004	ALX	M	2,000	$70.74	$141,480	2,500 Direct	+400.00%	Acquired	283.7% (price as of 2026-08-20)
May 26, 2004	ALX	S	1,000	$161.40	$161,400	1,500 Direct	-40.00%	Disposed	68.2% (price as of 2026-08-20)
May 26, 2004	ALX	M	2,000	$70.38	$140,760	7,000 Direct	+40.00%	Acquired	285.6% (price as of 2026-08-20)
May 26, 2004	ALX	M	2,000	$70.38	$140,760	2,500 Direct	+400.00%	Acquired	285.6% (price as of 2026-08-20)
May 26, 2004	ALX	S	1,000	$161.40	$161,400	1,500 Direct	-40.00%	Disposed	68.2% (price as of 2026-08-20)
May 26, 2004	ALX	M	2,000	—	—	7,000 Direct	+40.00%	Acquired	(price as of 2026-08-20)
May 26, 2004	ALX	M	2,000	—	—	7,000 Direct	-22.22%	Disposed	(price as of 2026-08-20)
May 25, 2004	ALX	M	1,000	$70.38	$70,380	1,500 Direct	+200.00%	Acquired	285.6% (price as of 2026-08-20)
May 25, 2004	ALX	S	1,000	$161.25	$161,250	500 Direct	—	Acquired	68.3% (price as of 2026-08-20)
May 25, 2004	ALX	M	1,000	—	—	9,000 Direct	+12.50%	Acquired	(price as of 2026-08-20)
March 26, 2004	ALX	M	2,000	$70.38	$140,760	2,500 Direct	+400.00%	Acquired	285.6% (price as of 2026-08-20)
March 26, 2004	ALX	S	1,000	$161.40	$161,400	1,500 Direct	-40.00%	Disposed	68.2% (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 19, 2016	ALX	Deferred Stock Units [F1]	Common Stock (203)	—	—	203	Acquired
May 21, 2015	ALX	Deferred Stock Units [F1]	Common Stock (176)	—	—	176	Acquired
May 22, 2014	ALX	Deferred Stock Units [F1]	Common Stock (212)	—	—	212	Acquired
May 23, 2013	ALX	Deferred Stock Units [F1]	Common Stock (243)	—	—	243	Acquired
May 24, 2012	ALX	Deferred Stock Units [F1]	Common Stock (129)	—	—	129	Acquired
May 26, 2011	ALX	Deferred Stock Units [F1]	Common Stock (131)	—	—	131	Acquired
Aug. 15, 2008	ALX	Options (Right to Buy)	Common Shares (1,400)	$70.38	March 4, 2009	1,400	Disposed
Jan. 4, 2006	ALX	Options (Right to Buy)	Common Shares (1,000)	$70.38	March 4, 2009	1,000	Disposed
April 8, 2005	ALX	Options (Right to Buy)	Common Shares (1,600)	$70.38	March 4, 2009	1,600	Disposed
March 3, 2005	ALX	Options (Right to Buy)	Common Shares (1,000)	$70.38	March 4, 2009	1,000	Acquired
Aug. 24, 2004	ALX	Options (Right to Buy)	Common Shares (2,000)	$70.38	March 4, 2009	2,000	Disposed
May 26, 2004	ALX	Options (Right to Buy)	Common Shares (2,000)	$70.38	March 4, 2009	2,000	Acquired
May 26, 2004	ALX	Option (Right to Buy)	Common Shares (2,000)	$70.38	March 4, 2009	2,000	Acquired
May 26, 2004	ALX	Option (Right to Buy)	Common Shares (2,000)	$70.38	March 4, 2009	2,000	Disposed
May 25, 2004	ALX	Option (Right to Buy)	Common Shares (1,000)	$70.38	March 4, 2009	1,000	Acquired

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