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Who

Frank Witney

Director

Company insider

Files Form 4 as: Director, Standard BioTools; Director, Cerus; Director, Revvity; Director, Alamar Biosciences; Director, Telesis Bio; President and CEO, Affymetrix; President, Dionex Corp /de.

In numbers

Trades disclosed
152
Buys
4
Sells
4
Bought
$320K
Sold
$2.8M
Companies
7
Companies where not an officer
5
First trade
17 May 2001
Last trade
18 Jun 2026
Last filed
23 Jun 2026

Companies traded

Where they are an officer
AffymetrixDirector, Officer · last 31 Mar 20162 buys · 4 sells
Dionex Corp /deDirector, Officer · last 17 May 20110 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
LAB Standard BioToolsDirector · Life-science tools · last 18 Jun 20260 buys · 0 sells
CERS CerusDirector · Medical Devices · last 2 Jun 20262 buys · 0 sells
RVTY RevvityDirector · Life-science tools · last 7 May 20260 buys · 0 sells
ALMR Alamar BiosciencesDirector · Life-science tools · last 20 Apr 20260 buys · 0 sells
Telesis BioDirector · last 1 May 20240 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Jun 2026filed 23 Jun 2026LAB Standard BioToolsLife-science toolsSEC FORM 4 Code A—99,116 at $0.00filing
18 Jun 2026filed 23 Jun 2026LAB Standard BioToolsoption or derivative · Life-science toolsSEC FORM 4 Code A—175,923 at $0.00filing
18 Jun 2026filed 23 Jun 2026LAB Standard BioToolsoption or derivative · Life-science toolsSEC FORM 4 Code A—175,923 at $0.00filing
18 Jun 2026filed 23 Jun 2026LAB Standard BioToolsLife-science toolsSEC FORM 4 Code A—99,116 at $0.00filing
2 Jun 2026filed 2 Jun 2026CERS CerusMedical DevicesSEC FORM 4 Code A—60,000 at $0.00filing
2 Jun 2026filed 2 Jun 2026CERS CerusMedical DevicesSEC FORM 4 Code A—60,000 at $0.00filing
7 May 2026filed 11 May 2026RVTY RevvityLife-science toolsSEC FORM 4 Code A—1,015 at $0.00filing
7 May 2026filed 11 May 2026RVTY RevvityLife-science toolsSEC FORM 4 Code A—1,265 at $0.00filing
7 May 2026filed 11 May 2026RVTY RevvityLife-science toolsSEC FORM 4 Code A—1,015 at $0.00filing
7 May 2026filed 11 May 2026RVTY RevvityLife-science toolsSEC FORM 4 Code A—1,265 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—49,627 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—49,627 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—33,085 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—49,627 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—49,627 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—33,085 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—33,085 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—124,069 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—124,069 at $0.00filing
20 Apr 2026filed 20 Apr 2026ALMR Alamar Biosciencesoption or derivative · Life-science toolsSEC FORM 4 Code J—33,085 at $0.00filing

News

TransMedics Group (NASDAQ:TMDX) and Cerus (NASDAQ:CERS) Head-To-Head ContrastCERS · themarketsdaily.com · 13 Oct 2026

0 headlines in the last 90 days name Frank Witney; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care2
Not placed6

Buys in green, sells in red, by the company’s sector.

Related people

Chrystal JensenChief Legal Officer · Also traded CERS in the last 90 days