Harvard Bioscience, Inc.

Historical 13F Holders

Symbol: HBIO
CUSIP: 416906105
All holders as of: Q2 2026
Type: Equity
Class: COM

Reported Value, Excluding Options

Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 416906105 since 12/18/2024, newest first.

Filer	% of Class	Shares	Form	Filed
Leviticus Partners LP 13G/A Amendment 8	5.2%	235,000	13G/A Amendment 8	9/22/2026 Event 9/14/2026
Leviticus Partners LP 13G/A Amendment 7	6.5%	293,676	13G/A Amendment 7	5/14/2026 Event 5/12/2025
Leviticus Partners LP 13G/A Amendment 6	7.6%	3,401,601	13G/A Amendment 6	2/12/2026 Event 12/31/2025
Leviticus Partners LP 13G/A Amendment 5	7.5%	3,350,000	13G/A Amendment 5	11/3/2025 Event 10/30/2025
Leviticus Partners LP 13G/A Amendment 4	9.2%	4,047,535	13G/A Amendment 4	8/7/2025 Event 8/6/2025
Leviticus Partners LP	9.2%	4,047,535
AMH Equity LLC	9.2%	4,047,535
BlackRock, Inc. 13G/A Amendment 1	2.5%	1,113,926	13G/A Amendment 1	7/17/2025 Event 6/30/2025
Leviticus Partners LP 13G/A Amendment 3	8.1%	3,600,000	13G/A Amendment 3	5/30/2025 Event 5/29/2025
Leviticus Partners LP	8.1%	3,600,000
AMH Equity LLC	8.1%	3,600,000
Harvey Partners, LLC 13G/A Amendment 2	4.96%	2,187,500	13G/A Amendment 2	5/15/2025 Event 3/31/2025
Leviticus Partners LP 13G/A Amendment 2	9.8%	4,333,817	13G/A Amendment 2	5/14/2025 Event 5/13/2025
Leviticus Partners LP	9.8%	4,333,817
AMH Equity LLC	9.8%	4,333,817
Weber Capital Management LLC /ADV 13G/A Amendment 1	7.3%	3,200,380	13G/A Amendment 1	5/8/2025 Event 3/31/2025
Leviticus Partners LP 13G/A Amendment 1	8.6%	3,770,352	13G/A Amendment 1	4/8/2025 Event 4/1/2025
Leviticus Partners LP	8.6%	3,770,352
AMH Equity LLC	8.6%	3,770,352
Punch & Associates Investment Management, Inc. 13G/A Amendment 3	0.1%	25,586	13G/A Amendment 3	4/7/2025 Event 3/31/2025
Leviticus Partners LP 13G	7.5%	3,284,535	13G	3/17/2025 Event 3/14/2025
Leviticus Partners LP	7.5%	3,284,535
AMH Equity LLC	7.5%	3,284,535
Weber Capital Management LLC /ADV 13G	5.8%	2,516,930	13G	2/10/2025 Event 12/31/2024
Leviticus Partners LP 13G/A Amendment 1	4.9%	2,144,891	13G/A Amendment 1	2/4/2025 Event 2/3/2025
Leviticus Partners LP	4.9%	2,144,891
AMH Equity LLC	4.9%	2,144,891

13F Holders by Quarter

Period	Filings	Shares, Excl. Options	Value, Excl. Options	Options Value
2026 Q2	2	326 k	$2.01 M	$0
2026 Q1	3	236 k	$1.15 M	$0
2025 Q4	66	17.6 M	$11.8 M	$32.8 k
2025 Q3	63	16.6 M	$7.29 M	$23.7 k
2025 Q2	73	18.9 M	$8.39 M	$55.3 k
2025 Q1	95	25.6 M	$14.5 M	$6.06 k
2024 Q4	98	31.1 M	$65.5 M	$31.7 k
2024 Q3	98	31.3 M	$84.2 M	$7.53 k
2024 Q2	105	31.9 M	$90.9 M	$6.84 k
2024 Q1	96	32.7 M	$139 M	$26.3 k
2023 Q4	98	33.4 M	$179 M	$0
2023 Q3	100	33.1 M	$142 M	$152 k
2023 Q2	105	32.5 M	$178 M	$156 k
2023 Q1	69	30.2 M	$127 M	$9.24 k
2022 Q4	72	30.2 M	$83.6 M	$28.5 k
2022 Q3	80	28.9 M	$74.0 M	$0
2022 Q2	92	29.7 M	$107 M	$0
2022 Q1	100	30.2 M	$187 M	$0
2021 Q4	106	30.1 M	$212 M	$0
2021 Q3	101	27.5 M	$192 M	$76.0 k
2021 Q2	102	28.2 M	$235 M	$0
2021 Q1	89	26.4 M	$144 M	$0
2020 Q4	84	27.9 M	$120 M	$0
2020 Q3	87	26.4 M	$79.4 M	$0
2020 Q2	89	26.6 M	$82.3 M	$0
2020 Q1	67	24.5 M	$56.4 M	$0
2019 Q4	71	24.3 M	$74.1 M	$0
2019 Q3	73	24.4 M	$74.7 M	$0
2019 Q2	82	24.4 M	$48.8 M	$0
2019 Q1	90	28.3 M	$122 M	$0
2018 Q4	83	28.3 M	$90.0 M	$0
2018 Q3	99	27.9 M	$146 M	$0
2018 Q2	81	26.8 M	$144 M	$0
2018 Q1	73	23.5 M	$117 M	$0
2017 Q4	56	22.2 M	$73.8 M	$0
2017 Q3	54	21.5 M	$80.7 M	$0
2017 Q2	61	21.3 M	$54.2 M	$0
2017 Q1	64	21.5 M	$55.8 M	$0
2016 Q4	70	21.7 M	$66.2 M	$0
2016 Q3	70	22.3 M	$60.6 M	$0
2016 Q2	82	22.8 M	$65.1 M	$0
2016 Q1	81	24.0 M	$72.6 M	$0
2015 Q4	82	23.7 M	$82.3 M	$0
2015 Q3	84	23.2 M	$87.9 M	$0
2015 Q2	85	23.5 M	$134 M	$0
2015 Q1	79	19.9 M	$116 M	$0
2014 Q4	80	19.2 M	$109 M	$0
2014 Q3	73	18.1 M	$74.1 M	$102 k
2014 Q2	77	17.8 M	$80.8 M	$114 k
2014 Q1	75	18.5 M	$87.4 M	$0