Granahan Investment Management, LLC Harvard Bioscience Inc Transaction History

Granahan Investment Management, LLC

  • $2.1 Billion
  • Q2 2025

A detailed history of Granahan Investment Management, LLC transactions in Harvard Bioscience Inc stock. As of the latest transaction made, Granahan Investment Management, LLC holds 1,501,508 shares of HBIO stock, worth $720,723. This represents 0.03% of its overall portfolio holdings.

Number of Shares
1,501,508
Previous 1,527,894 1.73%
Holding current value
$720,723
Previous $870,000 24.14%
% of portfolio
0.03%
Previous 0.05%

Shares

32 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2025

Aug 14, 2025
SELL
$0.28 - $0.69 $7,388 - $18,206
-26,386 Reduced 1.73%
1,501,508 $660,000
Q1 2025

May 15, 2025
SELL
$0.57 - $2.19 $50,891 - $195,531
-89,284 Reduced 5.52%
1,527,894 $870,000
Q4 2024

Feb 14, 2025
SELL
$2.02 - $2.82 $501,467 - $700,067
-248,251 Reduced 13.31%
1,617,178 $3.41 Million
Q3 2024

Nov 14, 2024
SELL
$2.64 - $3.54 $158,318 - $212,290
-59,969 Reduced 3.11%
1,865,429 $5.02 Million
Q2 2024

Aug 14, 2024
BUY
$2.77 - $4.63 $170,764 - $285,430
61,648 Added 3.31%
1,925,398 $5.49 Million
Q1 2024

May 15, 2024
BUY
$4.02 - $5.39 $81,469 - $109,233
20,266 Added 1.1%
1,863,750 $7.9 Million
Q4 2023

Feb 14, 2024
BUY
$4.0 - $5.49 $431,648 - $592,436
107,912 Added 6.22%
1,843,484 $9.86 Million
Q3 2023

Nov 14, 2023
BUY
$4.0 - $5.82 $1.18 Million - $1.72 Million
296,122 Added 20.57%
1,735,572 $7.46 Million
Q2 2023

Aug 14, 2023
BUY
$4.19 - $6.16 $38,962 - $57,281
9,299 Added 0.65%
1,439,450 $7.9 Million
Q1 2023

May 15, 2023
SELL
$2.45 - $4.22 $79,149 - $136,331
-32,306 Reduced 2.21%
1,430,151 $6.01 Million
Q4 2022

Feb 14, 2023
SELL
$2.12 - $2.86 $65,321 - $88,122
-30,812 Reduced 2.06%
1,462,457 $4.05 Million
Q3 2022

Nov 14, 2022
SELL
$2.33 - $3.92 $91,857 - $154,542
-39,424 Reduced 2.57%
1,493,269 $3.82 Million
Q2 2022

Aug 15, 2022
BUY
$3.28 - $6.42 $249,096 - $487,560
75,944 Added 5.21%
1,532,693 $5.52 Million
Q1 2022

May 16, 2022
SELL
$5.16 - $7.14 $1.04 Million - $1.44 Million
-201,074 Reduced 12.13%
1,456,749 $9.05 Million
Q4 2021

Feb 14, 2022
BUY
$6.37 - $8.18 $497,930 - $639,414
78,168 Added 4.95%
1,657,823 $11.7 Million
Q3 2021

Nov 15, 2021
BUY
$6.98 - $8.47 $279,863 - $339,604
40,095 Added 2.6%
1,579,655 $11 Million
Q2 2021

Aug 16, 2021
BUY
$5.44 - $8.4 $110,089 - $169,990
20,237 Added 1.33%
1,539,560 $12.8 Million
Q1 2021

May 17, 2021
SELL
$3.91 - $6.99 $15,753 - $28,162
-4,029 Reduced 0.26%
1,519,323 $8.3 Million
Q4 2020

Feb 12, 2021
SELL
$3.0 - $4.5 $701,472 - $1.05 Million
-233,824 Reduced 13.31%
1,523,352 $6.54 Million
Q3 2020

Nov 12, 2020
BUY
$2.75 - $4.2 $66,090 - $100,938
24,033 Added 1.39%
1,757,176 $5.29 Million
Q2 2020

Aug 14, 2020
SELL
$2.12 - $3.14 $239,570 - $354,835
-113,005 Reduced 6.12%
1,733,143 $5.37 Million
Q1 2020

May 12, 2020
SELL
$1.42 - $3.29 $54,932 - $127,273
-38,685 Reduced 2.05%
1,846,148 $4.08 Million
Q4 2019

Feb 14, 2020
BUY
$2.45 - $3.25 $276,529 - $366,824
112,869 Added 6.37%
1,884,833 $5.75 Million
Q3 2019

Nov 15, 2019
BUY
$1.59 - $3.47 $1.35 Million - $2.94 Million
848,191 Added 91.82%
1,771,964 $5.45 Million
Q2 2019

Aug 14, 2019
SELL
$1.93 - $4.59 $121,451 - $288,839
-62,928 Reduced 6.38%
923,773 $1.85 Million
Q1 2019

May 14, 2019
SELL
$2.77 - $4.38 $290,800 - $459,821
-104,982 Reduced 9.62%
986,701 $4.25 Million
Q4 2018

Feb 13, 2019
SELL
$3.03 - $5.0 $69,105 - $114,035
-22,807 Reduced 2.05%
1,091,683 $3.47 Million
Q3 2018

Nov 13, 2018
BUY
$5.0 - $6.65 $195,635 - $260,194
39,127 Added 3.64%
1,114,490 $5.85 Million
Q2 2018

Aug 15, 2018
BUY
$4.2 - $5.95 $477,607 - $676,610
113,716 Added 11.83%
1,075,363 $5.75 Million
Q1 2018

May 14, 2018
BUY
$3.3 - $5.15 $85,569 - $133,539
25,930 Added 2.77%
961,647 $4.81 Million
Q4 2017

Feb 12, 2018
BUY
$3.08 - $3.8 $1.23 Million - $1.51 Million
398,250 Added 74.1%
935,717 $3.09 Million
Q3 2017

Nov 14, 2017
BUY
$2.7 - $3.75 $1.45 Million - $2.02 Million
537,467
537,467 $2.02 Million

Others Institutions Holding HBIO

# of Institutions
77
Shares Held
22.1M
Call Options Held
8.7K
Put Options Held
2K
View Full List

About HARVARD BIOSCIENCE INC

HBIO Quotes by TradingView
  • Ticker HBIO
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Medical Instruments & Supplies
  • Shares Outstandng 41,636,500
  • Market Cap $20M
  • Description
  • Harvard Bioscience, Inc. develops, manufactures, and sells technologies, products, and services that enables fundamental research, discovery, and pre-clinical testing for drug development in the United States and internationally. The company offers cellular and molecular technology instruments, such as syringe and peristaltic pump products, as w...
More about HBIO
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