GI
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GAMCO Investors’s Harvard Bioscience HBIO Stock Holding History

GAMCO Investors’s Portfolio HBIO Stock Details HBIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-5,700
Closed -$38.1K – 1036
2025
Q4 		$38.1K Buy
+5,700
New +$33.8K ﹤0.01% 1033
2025
Q3 		– Sell
-7,700
Closed -$34.2K – 1045
2025
Q2 		$34.2K Sell
7,700
-800
-9% -$3.34K ﹤0.01% 1045
2025
Q1 		$48.1K Sell
8,500
-1,000
-11% -$12.8K ﹤0.01% 849
2024
Q4 		$200K Buy
+9,500
New +$218K ﹤0.01% 835
2024
Q3 		– Sell
-1,500
Closed -$42.8K – 878
2024
Q2 		$42.8K Buy
+1,500
New +$52.6K ﹤0.01% 866

Other funds holding HBIO

WCM
Weber Capital Management San Francisco, California $100M AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
CCM
Corsair Capital Management New York $673M AUM 109.99% 1-Year Est. Return
MIM
Meros Investment Management Dallas, Texas $231M AUM 35.94% 1-Year Est. Return
NCNMGF
Nano-Cap New Millennium Growth Fund Staten Island, New York $107M AUM
Two Sigma Investments
Two Sigma Investments New York $121B AUM 33.93% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return