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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 $118M AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CCM
Corsair Capital Management New York $800M AUM 94.38% 1-Year Est. Return
MIM
Meros Investment Management Dallas, Texas $315M AUM 58.44% 1-Year Est. Return
NCNMGF
Nano-Cap New Millennium Growth Fund Staten Island, New York $130M AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

GAMCO Investors's HBIO Position: Q1 2026 in Review

GAMCO Investors sold out of Harvard Bioscience (HBIO) in Q1 2026, closing a stake of 5,700 shares — an estimated $38.1K sold.

GAMCO Investors first reported a position in HBIO in Q2 2024 and held it in 5 quarters. The position peaked at $200K in Q4 2024. 37 funds tracked by Wall St. Rank hold HBIO as of Q1 2026.

  • GAMCO Investors reported no remaining Harvard Bioscience position as of Q1 2026 after selling out during the quarter.
  • GAMCO Investors sold 5,700 Harvard Bioscience shares in Q1 2026, an estimated $38.1K.
  • GAMCO Investors first reported a position in Harvard Bioscience in Q2 2024 and held it in 5 quarters.
  • GAMCO Investors's Harvard Bioscience position peaked at $200K in Q4 2024.
  • 37 funds tracked by Wall St. Rank held Harvard Bioscience as of Q1 2026.

Based on GAMCO Investors's 13F filing for Q1 2026, filed 14 May 2026.