OWNERSHIP PROFILE

SHAREHOLDER BREAKDOWN

Shareholder	Holders	Value ($MM)	% O/S	Shares
Institution	55	102.90	73.86	11,624,034
Mutual Fund	70	24.15	17.52	2,767,391
Insider	7	4.45	3.65	574,764

INSTITUTIONAL SHAREHOLDER ROTATION

Shareholder	Holders	Value Chg ($MM)	% O/S	Share Change
Buyers	30	8.88	5.48	862,921
Sellers	26	-11.32	8.10	-1,274,493
Net		-2.44	2.62	-411,572

INSTITUTIONAL SHAREHOLDER CONCENTRATION

	Value ($MM)	% O/S	Shares
Total Inst.	107.67	77.70	12,229,686
Top 10 Inst.	87.78	64.91	10,215,827
Top 20 Inst.	99.24	72.27	11,373,685
Top 50 Inst.	107.48	77.58	12,209,868

INSTITUTIONAL SHAREHOLDER STYLE

	Holders	Value ($MM)	% Inst Shares	Shares
Growth
Aggressive Growth	4	6.38	3.95	620,989
Core Growth	8	13.02	8.03	1,264,587
Growth	--			--
Income
Income Value	--	--	--	--
Yield	--			--
Index	8	10.50	6.65	1,047,179
Other	17	55.15	42.51	6,690,089
Broker Dealer	6	1.31	0.81	127,215
GARP	3	6.65	4.14	650,936
Hedge Fund	8	47.20	37.56	5,911,938
Specialty	--			--
VC Private Equity	--	--	--	--
Value	13	16.52	11.89	1,871,663
Core Value	9	12.28	9.27	1,458,992
Deep Value	4	4.24	2.62	412,671

TOP HOLDERS: INSTITUTIONAL INVESTOR

Holder	Shares Held	% O/S	Share Change	Filing Date
Grace Brothers Management, LLC	5,363,073	34.08	--	5/28/19
Dimensional Fund Advisors, L.P.	1,100,644	6.99	39,808	3/31/19
Eliot Rose Asset Management, L.L.C.	727,090	4.62	-502,625	12/31/17
Thomson Horstmann & Bryant, Inc.	627,736	3.99	-7,664	3/31/19
Wellington Management Company, LLP	590,927	3.75	-51,500	3/31/19
The Vanguard Group, Inc.	492,875	3.13	48,223	3/31/19
Franklin Mutual Advisers, LLC	383,200	2.43	-43,400	3/31/19
Global X Management Company LLC	345,939	2.20	-17,906	6/30/18
Renaissance Technologies LLC	314,055	2.00	48,055	3/31/19
Popielec (Michael D)	270,288	1.72	--	5/28/19
Mirae Asset Global Investments (USA) LLC	197,763	1.26	-16,752	3/31/19
Bridgeway Capital Management, Inc.	177,000	1.12	--	3/31/19
Essex Investment Management Company, LLC	164,926	1.05	-5,660	3/31/19
Millennium Management LLC	109,414	0.70	109,414	3/31/19
Geode Capital Management, L.L.C.	101,423	0.64	30,619	3/31/19
Fain (Philip A)	92,229	0.59	--	5/28/19
Gabelli Funds, LLC	81,300	0.52	22,000	3/31/19
Teton Advisors, Inc.	81,300	0.52	22,000	3/31/19
Singh (Ranjit C)	79,801	0.51	--	5/28/19
EAM Investors, LLC	72,702	0.46	72,702	3/31/19
Barclays Bank PLC	72,177	0.46	72,177	3/31/19
Saeli (Thomas Louis)	60,446	0.38	--	5/28/19
Marshall Wace LLP	57,059	0.36	57,059	3/31/19
Goldman Sachs & Company, Inc.	53,870	0.34	53,870	3/31/19
Shaw (Robert W II)	53,500	0.34	1,500	5/28/19
Susquehanna International Group, LLP	48,770	0.31	48,770	3/31/19
Deutsche Asset Management Americas	44,955	0.29	19,355	3/31/19
Northern Trust Investments, Inc.	38,599	0.25	13,322	3/31/19
Deutsche Bank Securities Inc.	37,306	0.24	37,279	3/31/19
Ancora Advisors, L.L.C.	34,285	0.22	34,285	3/31/19
California Public Employees' Retirement System	31,400	0.20	--	3/31/19
Tibra Equities Europe, Ltd.	30,888	0.20	30,888	3/31/19
BlackRock Institutional Trust Company, N.A.	29,340	0.19	-3,334	3/31/19
ExodusPoint Capital Management, LP	28,564	0.18	28,564	3/31/19
Acadian Asset Management LLC	27,469	0.17	-8,542	3/31/19
Dimensional Fund Advisors, Ltd.	25,347	0.16	19,542	4/30/19
Anderson (Steven Mark)	18,500	0.12	--	5/28/19
Carosa Stanton Asset Management, LLC	17,400	0.11	--	1/31/19
Algert Global LLC	17,140	0.11	-67,949	3/31/19
O'Shaughnessy Asset Management, LLC	17,036	0.11	5,567	3/31/19
Shikiar Asset Management, Inc.	16,500	0.10	-9,500	3/31/19
BlueCrest Capital Management LLP	15,900	0.10	15,900	3/31/19
Citi Investment Research (US)	14,630	0.09	14,630	3/31/19
Barclays Capital Inc.	10,801	0.07	-632	3/31/19
Morgan Stanley & Co. LLC	7,250	0.05	5,437	3/31/19
Tower Research Capital LLC	6,733	0.04	1,469	3/31/19
T. Rowe Price Associates, Inc.	5,800	0.04	--	3/31/19
METROPOLE Gestion	5,096	0.03	5,096	3/31/19
Vericimetry Advisors LLC	5,000	0.03	--	3/31/19
Charles Schwab Investment Management, Inc.	4,422	0.03	--	5/31/19

* Insider values reflect direct beneficial ownership.