Laboratory Apparatus And Analytical, Optical, Measuring, and Controlling Instruments - Insider Trading Data

Insiders are officers, directors, or significant investors. This page shows insider sentiment and transactions for the Laboratory industry. Research shows that insider trades are predictive of future stock returns. By examining insider trades for an industry, we can understand what well-informed people think of the overall future industry prospects.

Laboratory Apparatus And Analytical, Optical, Measuring, and Controlling Instruments - Insider Buy/Sell Ratio

Insider selling and buying is a useful indicator for analyzing the market because it serves as a proxy for their optimism or pessimism in their own companies. By looking at ratio of total selling and buying across the entire market, we might be able to draw some conclusions about the future market.

We offer two charts here. The first one shows the total dollar volume of buying and selling by insiders. The second chart shows the ratio of the number of insiders selling, vs. the number of insiders buying. In both charts, we filter out trades made by indirect holders (such as trusts), and 10% owners (who, although considered an 'insider' by the SEC, do not actually manage the companies in which they are considered insiders).

Corporate Insider Buy Sell Ratio (Dollar Volume) - Laboratory Apparatus And Analytical, Optical, Measuring, and Controlling Instruments
Corporate Insider Buy Sell Ratio (Insider Count) - Laboratory Apparatus And Analytical, Optical, Measuring, and Controlling Instruments
Laboratory Apparatus And Analytical, Optical, Measuring, and Controlling Instruments - Transaction History

Click the link icon to see the full transaction history. Transactions reported as part of a 10b5-1 automatic trading plan will have an X in the column marked 10b-5.

Tran
Date
Security Form Insider Code 10b5-1 Direct Share
Price
Shares
Changed
2025-08-01 AEHR / Aehr Test Systems, Inc. 4 SALAMONE ALBERTO F - Taxes D 16.84 -186
2025-08-01 KEYS / Keysight Technologies, Inc. 4 POOLE LISA M. F - Taxes D 158.68 -32
2025-07-31 TRNS / Transcat, Inc. 4 HADEED CHARLES P M - Exercise D 704
2025-07-31 AVTR / Avantor, Inc. 4 Eck Steven W F - Taxes D 13.44 -1,385
2025-07-31 QTRX / Quanterix Corporation 4 Toloue Masoud F - Taxes D 5.94 -254
2025-07-31 KNW / Know Labs, Inc. 4 Conley Peter J Prestwick Associates LLC A - Award I 107,500
2025-07-30 TER / Teradyne, Inc. 4 Smith Gregory Stephen S - Sale D 105.73 -554
2025-07-30 TER / Teradyne, Inc. 4 JOHNSON MERCEDES S - Sale D 105.73 -1,875
2025-07-29 KEQU / Kewaunee Scientific Corporation 4 PYLE MARGARET B By Trust G - Gift I -325
2025-07-28 MSAI / MultiSensor AI Holdings, Inc. 4 Strahan Gary Eugene S - Sale D 0.7778 -42,775
2025-07-28 AEHR / Aehr Test Systems, Inc. 4 ENGINEER ADIL F - Taxes D 21.74 -150
2025-07-28 AEHR / Aehr Test Systems, Inc. 4 SPORCK ALISTAIR N F - Taxes D 21.74 -140
2025-07-28 AEHR / Aehr Test Systems, Inc. 4 RICHMOND DONALD P. II F - Taxes D 21.74 -108
2025-07-28 AEHR / Aehr Test Systems, Inc. 4 Erickson Gayn F - Taxes D 21.74 -850
2025-07-28 AEHR / Aehr Test Systems, Inc. 4 ROGERS VERNON F - Taxes D 21.74 -147
2025-07-25 TMO / Thermo Fisher Scientific Inc. 4 Pettiti Gianluca S - Sale D 479.98 -400
2025-07-25 AEHR / Aehr Test Systems, Inc. 4 OLIPHANT LAURA By Trust S - Sale I 21.5003 -5,000
2025-07-25 BIO / Bio-Rad Laboratories, Inc. 4 ENGELHARDT EVA ANETTE M - Exercise D 245
2025-07-25 BIO / Bio-Rad Laboratories, Inc. 4 ENGELHARDT EVA ANETTE F - Taxes D 264.19 -88
2025-07-25 KEYS / Keysight Technologies, Inc. 4 KARY JASON ANDREW F - Taxes D 166.45 -1,590
2025-07-24 KEQU / Kewaunee Scientific Corporation 4 Gardner Donald T. III S - Sale D 58.34 -2,096
2025-07-24 KEQU / Kewaunee Scientific Corporation 4 Gardner Donald T. III S - Sale D 59.18 -904
2025-07-24 ROP / Roper Technologies, Inc. 4 Stipancich John K G - Gift D -100
2025-07-24 AVTR / Avantor, Inc. 4 Sokenu Claudius F - Taxes D 14.01 -3,123
2025-07-23 ROP / Roper Technologies, Inc. 4 Stipancich John K S - Sale D 564.17 -1,500
2025-07-23 ROP / Roper Technologies, Inc. 4 Stipancich John K M - Exercise D 228.84 1,500
2025-07-22 ROP / Roper Technologies, Inc. 4 WALLMAN RICHARD F S - Sale D 556.25 -352
2025-07-22 AEHR / Aehr Test Systems, Inc. 4 POSEDEL RHEA J S - Sale D 19.8318 -18,000
2025-07-22 AEHR / Aehr Test Systems, Inc. 4 POSEDEL RHEA J M - Exercise D 2.4 18,000
2025-07-22 ROP / Roper Technologies, Inc. 4 WALLMAN RICHARD F G - Gift D -4,000
2025-07-21 MSAI / MultiSensor AI Holdings, Inc. 4 Strahan Gary Eugene S - Sale D 0.7512 -89,265
2025-07-21 MSAI / MultiSensor AI Holdings, Inc. 4 Strahan Gary Eugene G - Gift D -2,409,258
2025-07-21 ST / Sensata Technologies Holding plc 4 Lynch Andrew Charles A - Award D 31.38 8,605
2025-07-18 MSAI / MultiSensor AI Holdings, Inc. 4 Strahan Gary Eugene S - Sale D 0.7488 -34,959
2025-07-18 AEHR / Aehr Test Systems, Inc. 4 SPORCK ALISTAIR N F - Taxes D 15.07 -506
2025-07-17 ROK / Rockwell Automation, Inc. 4 Riesterer Terry L. S - Sale D 355.2569 -269
2025-07-17 MSAI / MultiSensor AI Holdings, Inc. 4 Strahan Gary Eugene S - Sale D 0.8065 -363
2025-07-16 ROK / Rockwell Automation, Inc. 4 Riesterer Terry L. M - Exercise D 849
2025-07-16 HBIO / Harvard Bioscience, Inc. 4 Benson Seth Benjamin A - Award D 110,000
2025-07-16 PRPO / Precipio, Inc. 4 Cohen David Seth A - Award D 14.78 888
2025-07-16 HBIO / Harvard Bioscience, Inc. 4 Gagnon Robert E. A - Award D 110,000
2025-07-16 PRPO / Precipio, Inc. 4 ANDREWS RONALD ASBURY A - Award D 14.78 676
2025-07-16 PRPO / Precipio, Inc. 4/A Cossman Jeffrey A - Award D 14.78 710
2025-07-16 A / Agilent Technologies, Inc. 4 Gonsalves Rodney A - Award D 113.43 9,031
2025-07-16 HBIO / Harvard Bioscience, Inc. 4 Eade Katherine A. A - Award D 110,000
2025-07-15 ROK / Rockwell Automation, Inc. 4 Riesterer Terry L. S - Sale D 350.079 -2,100
2025-07-15 AEHR / Aehr Test Systems, Inc. 4 SPORCK ALISTAIR N S - Sale D 14.13 -3,000
2025-07-15 DHR / Danaher Corporation 4 SCHWIETERS JOHN T M - Exercise D 59.34 3,928
2025-07-15 DHR / Danaher Corporation 4 Zerhouni Elias A. M - Exercise D 59.34 3,928
2025-07-15 ROK / Rockwell Automation, Inc. 4 Riesterer Terry L. M - Exercise D 171.46 2,100
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)