Ownership Information

Top Holders

Holder	Shares Held	% O/S	Share Change	Filing Date
Engaged Capital, LLC	15,996,598	16.01	--	12/31/20
The Vanguard Group, Inc.	8,037,337	8.04	402,423	12/31/20
Brown Advisory	6,908,103	6.91	-160,788	12/31/20
BlackRock Institutional Trust Company, N.A.	6,387,849	6.35	203,894	12/31/20
AllianceBernstein L.P.	4,220,977	4.22	-61,688	12/31/20
Thrivent Asset Management, LLC	3,430,770	3.43	27,257	12/31/20
Segall Bryant & Hamill, LLC	3,352,225	3.36	248,437	12/31/20
Wells Fargo Bank, N.A.	3,230,596	3.21	-194,249	12/31/20
Black Creek Investment Management, Inc.	2,673,956	2.66	-13,038	12/31/20
Soros Fund Management, L.L.C.	2,075,179	2.08	-2,316,574	12/31/20

Fund	Shares Held	% O/S	Share Change	Filing Date
Vanguard Total Stock Market Index Fund	2,379,280	2.38	88,918	12/31/20
iShares Core S&P Mid-Cap ETF	2,174,971	2.18	5,474	2/28/21
Vanguard Small-Cap Index Fund	2,046,646	2.05	18,021	1/31/21
Stichting Pensioenfonds Zorg en Welzijn	1,892,766	1.89	485,876	12/31/19
Black Creek Global Leaders Fund	1,617,812	1.62	40,000	9/30/20
Thrivent Mid Cap Stock Fund	1,593,346	1.59	--	1/31/21
Brown Advisory Small-Cap Growth Fund	1,514,063	1.52	-79,591	1/31/21
Thrivent Mid Cap Stock Portfolio	1,315,327	1.32	--	1/31/21
Vanguard Small-Cap Value Index Fund	1,223,933	1.23	23,794	1/31/21
Vanguard Extended Market Index Fund	1,160,764	1.16	7,502	1/31/21

* Insider values reflect direct beneficial ownership.