Sharon M Oster

Insider

First SEC filing: Jan. 25, 2005 · Latest: Jan. 25, 2005

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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

WELL buying Aug. 9, 2011

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 97 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

97 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 12, 2021	WELL	A	2,371	—	—	43,469 Direct	+5.77%	Acquired	(price as of 2026-08-20)
Feb. 6, 2020	WELL	A	1,890	—	—	41,098 Direct	+4.82%	Acquired	(price as of 2026-08-20)
Feb. 7, 2019	WELL	A	2,077	—	—	39,208 Direct	+5.59%	Acquired	(price as of 2026-08-20)
May 2, 2018	WELL	A	363	—	—	37,131 Direct	+0.99%	Acquired	(price as of 2026-08-20)
Feb. 9, 2018	WELL	M	2,142	—	—	36,768 Direct	+6.19%	Acquired	(price as of 2026-08-20)
Feb. 9, 2018	WELL	M	2,142	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 8, 2018	WELL	A	2,561	—	—	34,626 Direct	+7.99%	Acquired	(price as of 2026-08-20)
Feb. 12, 2017	WELL	M	2,298	—	—	2,142 Direct	-51.76%	Disposed	(price as of 2026-08-20)
Feb. 12, 2017	WELL	M	2,298	—	—	32,065 Direct	+7.72%	Acquired	(price as of 2026-08-20)
Feb. 9, 2017	WELL	A	2,142	—	—	4,440 Direct	+93.21%	Acquired	(price as of 2026-08-20)
Feb. 6, 2017	WELL	M	562	—	—	2,298 Direct	-19.65%	Disposed	(price as of 2026-08-20)
Feb. 6, 2017	WELL	M	562	—	—	29,767 Direct	+1.92%	Acquired	(price as of 2026-08-20)
Feb. 12, 2016	WELL	A	2,298	—	—	2,860 Direct	+408.90%	Acquired	(price as of 2026-08-20)
Feb. 12, 2016	WELL	A	2,758	—	—	3,320 Direct	+490.75%	Acquired	(price as of 2026-08-20)
Feb. 7, 2016	WELL	M	511	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 7, 2016	WELL	M	511	—	—	27,110 Direct	+1.92%	Acquired	(price as of 2026-08-20)
Feb. 6, 2016	WELL	M	563	—	—	562 Direct	-50.04%	Disposed	(price as of 2026-08-20)
Feb. 6, 2016	WELL	M	563	—	—	27,673 Direct	+2.08%	Acquired	(price as of 2026-08-20)
Feb. 5, 2016	WELL	M	1,532	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 5, 2016	WELL	M	1,532	—	—	29,205 Direct	+5.54%	Acquired	(price as of 2026-08-20)
Feb. 7, 2015	WELL	M	511	—	—	2,199 Direct	-18.86%	Disposed	(price as of 2026-08-20)
Feb. 7, 2015	WELL	M	511	—	—	26,036 Direct	+2.00%	Acquired	(price as of 2026-08-20)
Feb. 6, 2015	WELL	M	563	—	—	1,636 Direct	-25.60%	Disposed	(price as of 2026-08-20)
Feb. 6, 2015	WELL	M	563	—	—	26,599 Direct	+2.16%	Acquired	(price as of 2026-08-20)
Feb. 5, 2015	WELL	A	1,532	—	—	3,168 Direct	+93.64%	Acquired	(price as of 2026-08-20)
Jan. 26, 2015	WELL	M	552	—	—	2,710 Direct	-16.92%	Disposed	(price as of 2026-08-20)
Jan. 26, 2015	WELL	M	552	—	—	25,525 Direct	+2.21%	Acquired	(price as of 2026-08-20)
Feb. 7, 2014	WELL	M	512	—	—	1,574 Direct	-24.54%	Disposed	(price as of 2026-08-20)
Feb. 7, 2014	WELL	M	512	—	—	24,973 Direct	+2.09%	Acquired	(price as of 2026-08-20)
Feb. 6, 2014	WELL	A	1,688	—	—	3,262 Direct	+107.24%	Acquired	(price as of 2026-08-20)
Jan. 27, 2014	WELL	M	644	—	—	2,639 Direct	-19.62%	Disposed	(price as of 2026-08-20)
Jan. 27, 2014	WELL	M	644	—	—	23,908 Direct	+2.77%	Acquired	(price as of 2026-08-20)
Jan. 26, 2014	WELL	M	553	—	—	2,086 Direct	-20.95%	Disposed	(price as of 2026-08-20)
Jan. 26, 2014	WELL	M	553	—	—	24,461 Direct	+2.31%	Acquired	(price as of 2026-08-20)
May 6, 2013	WELL	M	163	—	—	3,283 Direct	-4.73%	Disposed	(price as of 2026-08-20)
May 6, 2013	WELL	M	163	—	—	23,264 Direct	+0.71%	Acquired	(price as of 2026-08-20)
Feb. 7, 2013	WELL	A	1,534	—	—	3,446 Direct	+80.23%	Acquired	(price as of 2026-08-20)
Jan. 28, 2013	WELL	M	577	—	—	3,109 Direct	-15.65%	Disposed	(price as of 2026-08-20)
Jan. 28, 2013	WELL	M	577	—	—	21,904 Direct	+2.71%	Acquired	(price as of 2026-08-20)
Jan. 27, 2013	WELL	M	644	—	—	2,465 Direct	-20.71%	Disposed	(price as of 2026-08-20)
Jan. 27, 2013	WELL	M	644	—	—	22,548 Direct	+2.94%	Acquired	(price as of 2026-08-20)
Jan. 26, 2013	WELL	M	553	—	—	1,912 Direct	-22.43%	Disposed	(price as of 2026-08-20)
Jan. 26, 2013	WELL	M	553	—	—	23,101 Direct	+2.45%	Acquired	(price as of 2026-08-20)
May 6, 2012	WELL	M	164	—	—	3,686 Direct	-4.26%	Disposed	(price as of 2026-08-20)
May 6, 2012	WELL	M	164	—	—	21,327 Direct	+0.77%	Acquired	(price as of 2026-08-20)
Jan. 29, 2012	WELL	M	675	—	—	3,415 Direct	-16.50%	Disposed	(price as of 2026-08-20)
Jan. 29, 2012	WELL	M	675	—	—	19,940 Direct	+3.50%	Acquired	(price as of 2026-08-20)
Jan. 28, 2012	WELL	M	578	—	—	2,837 Direct	-16.93%	Disposed	(price as of 2026-08-20)
Jan. 28, 2012	WELL	M	578	—	—	20,518 Direct	+2.90%	Acquired	(price as of 2026-08-20)
Jan. 27, 2012	WELL	M	645	—	—	2,192 Direct	-22.74%	Disposed	(price as of 2026-08-20)
Jan. 27, 2012	WELL	M	645	—	—	21,163 Direct	+3.14%	Acquired	(price as of 2026-08-20)
Jan. 26, 2012	WELL	A	1,658	—	—	3,850 Direct	+75.64%	Acquired	(price as of 2026-08-20)
Aug. 9, 2011	WELL	P	7,600	$41.89	$318,364	17,000 Indirect	+80.85%	Acquired	465.3% (price as of 2026-08-20)
Aug. 9, 2011	WELL	P	9,400	$41.89	$393,766	9,400 Indirect	—	Acquired	465.3% (price as of 2026-08-20)
May 6, 2011	WELL	M	164	—	—	4,090 Direct	-3.86%	Disposed	(price as of 2026-08-20)
May 6, 2011	WELL	M	164	—	—	19,265 Direct	+0.86%	Acquired	(price as of 2026-08-20)
Jan. 29, 2011	WELL	M	676	—	—	2,899 Direct	-18.91%	Disposed	(price as of 2026-08-20)
Jan. 29, 2011	WELL	M	676	—	—	18,523 Direct	+3.79%	Acquired	(price as of 2026-08-20)
Jan. 28, 2011	WELL	M	578	—	—	2,321 Direct	-19.94%	Disposed	(price as of 2026-08-20)
Jan. 28, 2011	WELL	M	578	—	—	19,101 Direct	+3.12%	Acquired	(price as of 2026-08-20)
Jan. 27, 2011	WELL	A	1,933	—	—	4,254 Direct	+83.28%	Acquired	(price as of 2026-08-20)
Jan. 21, 2011	WELL	M	571	—	—	3,575 Direct	-13.77%	Disposed	(price as of 2026-08-20)
Jan. 21, 2011	WELL	M	571	—	—	17,847 Direct	+3.31%	Acquired	(price as of 2026-08-20)
May 6, 2010	WELL	A	491	—	—	4,146 Direct	+13.43%	Acquired	(price as of 2026-08-20)
Jan. 29, 2010	WELL	M	676	—	—	3,655 Direct	-15.61%	Disposed	(price as of 2026-08-20)
Jan. 29, 2010	WELL	M	676	—	—	17,276 Direct	+4.07%	Acquired	(price as of 2026-08-20)
Jan. 28, 2010	WELL	A	1,733	—	—	4,331 Direct	+66.71%	Acquired	(price as of 2026-08-20)
Jan. 22, 2010	WELL	M	510	—	—	2,598 Direct	-16.41%	Disposed	(price as of 2026-08-20)
Jan. 22, 2010	WELL	M	510	—	—	16,600 Direct	+3.17%	Acquired	(price as of 2026-08-20)
Jan. 21, 2010	WELL	M	572	—	—	3,108 Direct	-15.54%	Disposed	(price as of 2026-08-20)
Jan. 21, 2010	WELL	M	572	—	—	16,090 Direct	+3.69%	Acquired	(price as of 2026-08-20)
Jan. 29, 2009	WELL	A	2,027	—	—	3,680 Direct	+122.63%	Acquired	(price as of 2026-08-20)
Jan. 23, 2009	WELL	M	639	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 23, 2009	WELL	M	639	—	—	15,518 Direct	+4.29%	Acquired	(price as of 2026-08-20)
Jan. 22, 2009	WELL	M	510	—	—	510 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Jan. 22, 2009	WELL	M	510	—	—	14,879 Direct	+3.55%	Acquired	(price as of 2026-08-20)
Jan. 21, 2009	WELL	M	572	—	—	1,143 Direct	-33.35%	Disposed	(price as of 2026-08-20)
Jan. 21, 2009	WELL	M	572	—	—	14,369 Direct	+4.15%	Acquired	(price as of 2026-08-20)
Jan. 23, 2008	WELL	M	639	—	—	639 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Jan. 23, 2008	WELL	M	639	—	—	13,797 Direct	+4.86%	Acquired	(price as of 2026-08-20)
Jan. 22, 2008	WELL	M	511	—	—	1,020 Direct	-33.38%	Disposed	(price as of 2026-08-20)
Jan. 22, 2008	WELL	M	511	—	—	13,158 Direct	+4.04%	Acquired	(price as of 2026-08-20)
Jan. 21, 2008	WELL	A	1,715	—	—	1,715 Direct	—	Acquired	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,666	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,667	—	—	1,666 Direct	-50.02%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,667	—	—	3,333 Direct	-33.34%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,666	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,667	—	—	1,666 Direct	-50.02%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	M	1,667	—	—	3,333 Direct	-33.34%	Disposed	(price as of 2026-08-20)
March 9, 2007	WELL	S	10,000	$44.70	$447,000	12,647 Direct	-44.16%	Disposed	429.7% (price as of 2026-08-20)
March 9, 2007	WELL	M	5,000	$25.82	$129,100	22,647 Direct	+28.33%	Acquired	817.1% (price as of 2026-08-20)
March 9, 2007	WELL	M	5,000	$27.17	$135,850	17,647 Direct	+39.54%	Acquired	771.5% (price as of 2026-08-20)
Jan. 23, 2007	WELL	M	640	—	—	1,278 Direct	-33.37%	Disposed	(price as of 2026-08-20)
Jan. 23, 2007	WELL	M	640	—	—	12,647 Direct	+5.33%	Acquired	(price as of 2026-08-20)
Jan. 22, 2007	WELL	A	1,531	—	—	1,531 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2006	WELL	A	1,918	—	—	1,918 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 24, 2005	WELL	A	2,007	—	—	12,007 Direct	+20.07%	Acquired	(price as of 2026-08-20)
Feb. 24, 2004	WELL	M	1,666	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 24, 2004	WELL	M	1,667	—	—	1,666 Direct	-50.02%	Disposed	(price as of 2026-08-20)
Feb. 24, 2004	WELL	M	1,667	—	—	3,333 Direct	-33.34%	Disposed	(price as of 2026-08-20)

Showing latest 100 of 111 transactions

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, 2018	WELL	Deferred Stock Units	Common	—	Feb. 9, 2018	2,142	Disposed
Feb. 12, 2017	WELL	Deferred Stock Units	Common	—	Feb. 12, 2017	2,298	Disposed
Feb. 9, 2017	WELL	Deferred Stock Units	Common	—	Feb. 9, 2018	2,142	Acquired
Feb. 6, 2017	WELL	Deferred Stock Units	Common	—	Feb. 6, 2017	562	Disposed
Feb. 12, 2016	WELL	Deferred Stock Units	Common	—	Feb. 12, 2017	2,298	Acquired
Feb. 12, 2016	WELL	Deferred Stock Units	Common	—	Feb. 12, 2017	2,758	Acquired
Feb. 7, 2016	WELL	Deferred Stock Units	Common	—	Feb. 7, 2016	511	Disposed
Feb. 6, 2016	WELL	Deferred Stock Units	Common	—	Feb. 6, 2016	563	Disposed
Feb. 5, 2016	WELL	Deferred Stock Units	Common	—	Feb. 5, 2016	1,532	Disposed
Feb. 7, 2015	WELL	Deferred Stock Units	Common	—	Feb. 7, 2015	511	Disposed
Feb. 6, 2015	WELL	Deferred Stock Units	Common	—	Feb. 6, 2015	563	Disposed
Feb. 5, 2015	WELL	Deferred Stock Units	Common	—	Feb. 5, 2016	1,532	Acquired
Jan. 26, 2015	WELL	Deferred Stock Units	Common	—	Jan. 26, 2015	552	Disposed
Feb. 7, 2014	WELL	Deferred Stock Units	Common	—	Feb. 7, 2014	512	Disposed
Feb. 6, 2014	WELL	Deferred Stock Units	Common	—	Feb. 6, 2017	1,688	Acquired
Jan. 27, 2014	WELL	Deferred Stock Units	Common	—	Jan. 27, 2014	644	Disposed
Jan. 26, 2014	WELL	Deferred Stock Units	Common	—	Jan. 26, 2014	553	Disposed
May 6, 2013	WELL	Deferred Stock Units	Common	—	May 6, 2013	163	Disposed
Feb. 7, 2013	WELL	Deferred Stock Units	Common	—	Feb. 7, 2016	1,534	Acquired
Jan. 28, 2013	WELL	Deferred Stock Units	Common	—	Jan. 28, 2013	577	Disposed
Jan. 27, 2013	WELL	Deferred Stock Units	Common	—	Jan. 27, 2013	644	Disposed
Jan. 26, 2013	WELL	Deferred Stock Units	Common	—	Jan. 26, 2013	553	Disposed
May 6, 2012	WELL	Deferred Stock Units	Common	—	May 6, 2012	164	Disposed
Jan. 29, 2012	WELL	Deferred Stock Units	Common	—	Jan. 29, 2012	675	Disposed
Jan. 28, 2012	WELL	Deferred Stock Units	Common	—	Jan. 28, 2012	578	Disposed
Jan. 27, 2012	WELL	Deferred Stock Units	Common	—	Jan. 27, 2012	645	Disposed
Jan. 26, 2012	WELL	Deferred Stock Units	Common	—	Jan. 26, 2015	1,658	Acquired
May 6, 2011	WELL	Deferred Stock Units	Common	—	May 6, 2011	164	Disposed
Jan. 29, 2011	WELL	Deferred Stock Units	Common	—	Jan. 29, 2011	676	Disposed
Jan. 28, 2011	WELL	Deferred Stock Units	Common	—	Jan. 28, 2011	578	Disposed
Jan. 27, 2011	WELL	Deferred Stock Units	Common	—	Jan. 27, 2014	1,933	Acquired
Jan. 21, 2011	WELL	Deferred Stock Units	Common	—	Jan. 21, 2011	571	Disposed
May 6, 2010	WELL	Deferred Stock Units	Common	—	May 6, 2013	491	Acquired
Jan. 29, 2010	WELL	Deferred Stock Units	Common	—	Jan. 29, 2010	676	Disposed
Jan. 28, 2010	WELL	Deferred Stock Units	Common	—	Jan. 28, 2013	1,733	Acquired
Jan. 22, 2010	WELL	Deferred Stock Units	Common	—	Jan. 22, 2010	510	Disposed
Jan. 21, 2010	WELL	Deferred Stock Units	Common	—	Jan. 21, 2010	572	Disposed
Jan. 29, 2009	WELL	Deferred Stock Units	Common	—	Jan. 29, 2012	2,027	Acquired
Jan. 23, 2009	WELL	Deferred Stock Units	Common	—	Jan. 23, 2009	639	Disposed
Jan. 22, 2009	WELL	Deferred Stock Units	Common	—	Jan. 22, 2010	510	Disposed
Jan. 21, 2009	WELL	Deferred Stock Units	Common	—	Jan. 21, 2011	572	Disposed
Jan. 23, 2008	WELL	Deferred Stock Units	Common	—	Jan. 23, 2009	639	Disposed
Jan. 22, 2008	WELL	Deferred Stock Units	Common	—	Jan. 22, 2010	511	Disposed
Jan. 21, 2008	WELL	Deferred Stock Units	Common	—	Jan. 21, 2011	1,715	Acquired
March 9, 2007	WELL	Option (Right to Buy)	Common	$25.82	Jan. 28, 2013	1,666	Disposed
March 9, 2007	WELL	Option (Right to Buy)	Common	$25.82	Jan. 28, 2013	1,667	Disposed
March 9, 2007	WELL	Option (Right to Buy)	Common	$25.82	Jan. 28, 2013	1,667	Disposed
March 9, 2007	WELL	Option (Right to Buy)	Common	$27.17	Jan. 28, 2012	1,666	Disposed
March 9, 2007	WELL	Option (Right to Buy)	Common	$27.17	Jan. 28, 2012	1,667	Disposed
March 9, 2007	WELL	Option (Right to Buy)	Common	$27.17	Jan. 28, 2012	1,667	Disposed
Jan. 23, 2007	WELL	Deferred Stock Units	Common	—	Jan. 23, 2009	640	Disposed
Jan. 22, 2007	WELL	Deferred Stock Units	Common	—	Jan. 22, 2010	1,531	Acquired
Jan. 23, 2006	WELL	Deferred Stock Unit	Common	—	Jan. 23, 2009	1,918	Acquired
Feb. 24, 2004	WELL	Option (Right to Buy)	Common	$17.56	Jan. 15, 2011	1,666	Disposed
Feb. 24, 2004	WELL	Option (Right to Buy)	Common	$17.56	Jan. 15, 2011	1,667	Disposed
Feb. 24, 2004	WELL	Option (Right to Buy)	Common	$17.56	Jan. 15, 2011	1,667	Disposed

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