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JG

James W. Green

HBIO
CHIEF EXECUTIVE OFFICER · HARVARD BIOSCIENCE INC · CIK 0001400121
FILING MIX · LIFETIME40%/60%
BUYS
29
SELLS
44
TOTAL VALUE
$8.66M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
2,643,508
AVG SELL PX
$5.04
TRADE KIND
SHOWING 73 / 73
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
18 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by James W. Green, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d18+61.11%+0.61%-0.07%+0.68%+0.09%—
14d18+50.00%+4.05%+0.22%+3.83%-1.38%—
30d18+44.44%+12.47%+1.47%+11.01%+1.92%—
60d18+44.44%+14.46%+1.68%+12.78%+2.61%—
90d18+27.78%+16.54%+4.98%+11.55%+2.08%—
180d18+38.89%+15.59%+8.70%+6.89%-5.78%—
1y18+83.33%+11.04%+11.82%-0.78%+8.46%—
2y18+50.00%-32.62%+29.89%-62.51%-55.32%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
HBIO · 2,643,508 shares · as of Aug 15, 2025
0777,7731,555,5462,333,3183,111,091202020212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
FLOW · 29 buys / 44 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
HBIO
HARVARD BIOSCIENCE INC
SALE
49,048——2,796,040Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
113,366——2,452,566Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
11,540$0.53$6.1K2,631,968Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
33,200$0.53$17.6K2,762,840Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
66,036——2,565,905Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
119,332——2,643,508Aug 15, 2025Aug 19, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
38,413$0.69$26.5K2,845,088Mar 19, 2025Mar 21, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
145,365——2,883,501Dec 31, 2024Jan 3, 2025 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
25,310$1.98$50.1K3,028,866Dec 29, 2024Dec 31, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
56,915$1.98$112.7K3,054,176Dec 29, 2024Dec 31, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
10,000$2.91$29.1K3,111,091Jun 13, 2024Jun 14, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
20,000$3.07$61.4K3,101,091Jun 6, 2024Jun 7, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
214,797——3,081,091Mar 5, 2024Mar 7, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
214,797——2,866,294Mar 5, 2024Mar 7, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
82,790$5.35$442.9K2,651,497Dec 31, 2023Jan 3, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
23,216$5.35$124.2K2,786,493Dec 29, 2023Jan 3, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
24,187$5.35$129.4K2,838,492Dec 29, 2023Jan 3, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
52,206$5.35$279.3K2,734,287Dec 29, 2023Jan 3, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
28,783$5.35$154.0K2,809,709Dec 29, 2023Jan 3, 2024 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
25,000$4.38$109.5K2,862,679Aug 17, 2023Aug 21, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
48,373$5.46$264.1K2,837,679Jun 11, 2023Jun 13, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
20,000$2.60$52.0K2,886,052Mar 15, 2023Mar 15, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
20,000$2.67$53.4K2,866,052Mar 14, 2023Mar 15, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
339,610——2,846,052Mar 6, 2023Mar 8, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
353,140——2,506,442Mar 6, 2023Mar 8, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
49,322$2.77$136.6K2,153,302Jan 1, 2023Jan 3, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
23,216$2.55$59.2K2,202,624Dec 29, 2022Jan 3, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
28,784$2.55$73.4K2,225,840Dec 29, 2022Jan 3, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
24,187$2.55$61.7K2,254,624Dec 29, 2022Jan 3, 2023 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
15,000$2.61$39.1K2,278,811Dec 1, 2022Dec 2, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
15,000$2.41$36.1K2,263,811Nov 30, 2022Dec 2, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
40,000$3.19$127.6K2,248,811Aug 17, 2022Aug 18, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
92,771$3.90$361.8K2,208,811Jul 8, 2022Jul 12, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
30,000$3.71$111.3K2,301,582Jun 15, 2022Jun 16, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
48,373$3.95$191.1K2,271,582Jun 11, 2022Jun 14, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
10,000$3.40$34.0K2,319,955May 9, 2022May 10, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
30,000$3.78$113.4K2,309,955May 6, 2022May 10, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
157,037——2,134,590Mar 1, 2022Mar 3, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
145,365——2,279,955Mar 1, 2022Mar 3, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
47,424$7.05$334.3K1,977,554Jan 1, 2022Jan 3, 2022 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
24,187$7.27$175.8K2,053,761Dec 29, 2021Dec 30, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
28,783$7.27$209.3K2,024,978Dec 29, 2021Dec 30, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALEGRANT
Gift
13,777——2,077,948Nov 12, 2021Nov 15, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
48,175$8.02$386.4K2,091,725Aug 23, 2021Aug 25, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
92,772$8.03$745.0K2,139,900Jul 8, 2021Jul 12, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
107,803$8.03$865.7K2,232,672Jul 8, 2021Jul 12, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
109,070——2,388,848Jun 11, 2021Jun 15, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
48,373$7.64$369.6K2,340,475Jun 11, 2021Jun 15, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
24,312——352,690May 21, 2021May 25, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
24,312$7.14$173.6K2,279,778May 21, 2021May 25, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
24,312$2.63$63.9K2,304,090May 21, 2021May 25, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
14,876$2.63$39.1K2,294,654May 20, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
14,876$7.03$104.6K2,279,778May 20, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
14,876——377,002May 20, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
39,188$7.17$281.0K2,279,778May 19, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
39,188——391,878May 19, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
39,188$2.63$103.1K2,318,966May 19, 2021May 21, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
39,188——431,066May 18, 2021May 19, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
39,188$7.41$290.4K2,279,788May 18, 2021May 19, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
39,188$2.63$103.1K2,318,966May 18, 2021May 19, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
35,000$5.98$209.3K2,279,778Mar 12, 2021Mar 16, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
186,674——2,314,778Mar 1, 2021Mar 3, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
194,698——2,128,104Mar 1, 2021Mar 3, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
30,478$4.29$130.8K1,933,406Jan 1, 2021Jan 5, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
26,231$4.29$112.5K1,963,884Dec 31, 2020Jan 5, 2021 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
209,180——2,147,605Jul 8, 2020Jul 10, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
157,490$3.49$549.6K1,990,115Jul 8, 2020Jul 10, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
218,141——1,938,424Jun 11, 2020Jun 15, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
470,254——470,254Jun 11, 2020Jun 15, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASEGRANT
Stock grant
218,141——1,720,284Jun 11, 2020Jun 15, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
10,302$2.66$27.4K1,502,143May 23, 2020May 27, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
PURCHASE
Chief Executive Officer
10,000$2.53$25.3K1,512,445May 7, 2020May 8, 2020 ↗View →
HBIO
HARVARD BIOSCIENCE INC
SALE
Chief Executive Officer
32,959$3.05$100.5K71,631Jan 1, 2020Jan 3, 2020 ↗View →
Other insiders · HBIO
Loading peer insiders…
About this filer
CIK 0001400121
ROLE
Chief Executive Officer
PRIMARY
HBIO
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001400121DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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