# Holder Name Position Position Change $ Market Value % Port % O/S Rpt Date
1 General American Investors Co., Inc. (Investment Management) 354,361 0 1,839,133.59 0.1068 0.3735 03/31/2026
2 Wells Fargo Clearing Services LLC 78,029 -75,961 404,970.51 0.0001 0.0822 03/31/2026
3 Morgan Stanley & Co. International Plc 33,406 10,638 173,377.14 0.0015 0.0352 03/31/2026
4 Ironwood Investment Management LLC 25,135 0 130,450.65 0.047 0.0265 03/31/2026
5 HRT Financial LP 20,847 20,847 108,195.93 0.0004 0.022 03/31/2026
6 Old Mission Capital LLC 13,759 13,759 71,409.21 0.0016 0.0145 03/31/2026
7 Morgan Stanley Smith Barney LLC (Investment Management) 13,304 3,100 69,047.76 0 0.014 03/31/2026
8 VSM Wealth Advisory LLC 10,000 1,000 51,900 0.0141 0.0105 03/31/2026
9 China Universal Asset Management Co., Ltd. 5,000 5,000 25,950 0.0001 0.0053 03/31/2026
10 RhumbLine Advisers LP 1,793 1,575 9,305.67 0 0.0019 03/31/2026
11 GAMMA Investing LLC 1,426 -691 7,400.94 0.0003 0.0015 03/31/2026
12 Steigerwald, Gordon & Koch, Inc. 1,250 1,250 6,487.5 0.0006 0.0013 03/31/2026
13 UBS Securities LLC 782 310 4,058.58 0 0.0008 03/31/2026
14 BNP Paribas Financial Markets SNC 200 200 1,038 0 0.0002 03/31/2026
15 Morgan Stanley & Co. LLC 200 200 1,038 0 0.0002 03/31/2026
# Holder Name Position Position Change $ Market Value % Port % O/S Rpt Date
1 General American Investors Fund 354,361 0 1,839,133.59 0.1081 0.3735 03/31/2026
2 Fidelity Nasdaq Composite Index Fund 5,161 2,281 26,785.59 0.0001 0.0054 04/30/2026
3 China Universal Global Healthcare Mixed Fund 5,000 5,000 25,950 0.0312 0.0053 12/31/2025
# Holder Name Position Position Change $ Market Value % Port % O/S Rpt Date
1 HRT Financial LP 20,847 20,847 108,195.93 0.0004 0.022 03/31/2026
2 Old Mission Capital LLC 13,759 13,759 71,409.21 0.0016 0.0145 03/31/2026
3 Morgan Stanley & Co. International Plc 33,406 10,638 173,377.14 0.0015 0.0352 03/31/2026
4 China Universal Asset Management Co., Ltd. 5,000 5,000 25,950 0.0001 0.0053 03/31/2026
5 Morgan Stanley Smith Barney LLC (Investment Management) 13,304 3,100 69,047.76 0 0.014 03/31/2026
6 RhumbLine Advisers LP 1,793 1,575 9,305.67 0 0.0019 03/31/2026
7 Steigerwald, Gordon & Koch, Inc. 1,250 1,250 6,487.5 0.0006 0.0013 03/31/2026
8 VSM Wealth Advisory LLC 10,000 1,000 51,900 0.0141 0.0105 03/31/2026
9 UBS Securities LLC 782 310 4,058.58 0 0.0008 03/31/2026
10 BNP Paribas Financial Markets SNC 200 200 1,038 0 0.0002 03/31/2026
# Holder Name Position Position Change $ Market Value % Port % O/S Rpt Date
1 Wells Fargo Clearing Services LLC 78,029 -75,961 404,970.51 0.0001 0.0822 03/31/2026
2 Marshall Wace LLP 0 -31,211 0 0 0
3 Citadel Securities LLC 0 -16,410 0 0 0
4 JPMorgan Securities LLC (Investment Management) 0 -10,179 0 0 0
5 GAMMA Investing LLC 1,426 -691 7,400.94 0.0003 0.0015 03/31/2026
6 Osaic Advisory Services LLC 0 -500 0 0 0
7 Barclays Bank Plc (Private Banking) 0 -196 0 0 0
8 EverSource Wealth Advisors LLC 91 -9 472.29 0 0.0001 03/31/2026

Data provided by FactSet Research Systems Inc.