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Who

Amal M. Johnson

Director

Company insider

Files Form 4 as: Director, Essex Property Trust; Director, Intuitive Surgical; Director, CalAmp; Director, Mellanox Technologies.

In numbers

Trades disclosed
232
Buys
7
Sells
43
Bought
$996K
Sold
$43.1M
Companies
4
Companies where not an officer
4
First trade
8 Feb 2007
Last trade
12 May 2026
Last filed
14 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
ESS Essex Property TrustDirector · REITs · last 12 May 20261 buy · 3 sells
ISRG Intuitive SurgicalDirector · Medical Devices · last 30 Apr 20262 buys · 20 sells
CalAmpDirector · last 28 Jul 20214 buys · 0 sells
Mellanox TechnologiesDirector · last 27 Apr 20200 buys · 20 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
12 May 2026filed 14 May 2026ESS Essex Property TrustREITsSEC FORM 4 Code A—633 at $0.00filing
12 May 2026filed 14 May 2026ESS Essex Property TrustREITsSEC FORM 4 Code A—633 at $0.00filing
30 Apr 2026filed 30 Apr 2026ISRG Intuitive SurgicalMedical DevicesSEC FORM 4 Code M—531 at $0.00filing
30 Apr 2026filed 30 Apr 2026ISRG Intuitive Surgicaloption or derivative · Medical DevicesSEC FORM 4 Code M—531 at $0.00filing
30 Apr 2026filed 30 Apr 2026ISRG Intuitive Surgicaloption or derivative · Medical DevicesSEC FORM 4 Code M—531 at $0.00filing
30 Apr 2026filed 30 Apr 2026ISRG Intuitive SurgicalMedical DevicesSEC FORM 4 Code M—531 at $0.00filing
13 May 2025filed 15 May 2025ESS Essex Property TrustREITsSEC FORM 4 Code A—606 at $0.00filing
1 May 2025filed 1 May 2025ISRG Intuitive Surgicaloption or derivative · Medical DevicesSEC FORM 4 Code A—531 at $0.00filing
25 Apr 2025filed 25 Apr 2025ISRG Intuitive Surgicaloption or derivative · Medical DevicesSEC FORM 4 Code M—739 at $0.00filing
25 Apr 2025filed 25 Apr 2025ISRG Intuitive SurgicalMedical DevicesSEC FORM 4 Code M—739 at $0.00filing
28 Jan 2025filed 28 Jan 2025ISRG Intuitive Surgicaloption or derivative · Medical DevicesSEC FORM 4 Code M—4,635 at $0.00filing
28 Jan 2025filed 28 Jan 2025ISRG Intuitive SurgicalMedical DevicesSEC FORM 4 Code M$419K4,635 at $90.49filing
28 Jan 2025filed 28 Jan 2025ISRG Intuitive SurgicalMedical DevicesSEC FORM 4 Sold$2.6M4,635 at $566.60filing
17 Sep 2024filed 19 Sep 2024ESS Essex Property Trustoption or derivative · REITsSEC FORM 4 Code M—7,298 at $0.00filing
17 Sep 2024filed 19 Sep 2024ESS Essex Property TrustREITsSEC FORM 4 Code M$1.6M7,298 at $216.31filing
17 Sep 2024filed 19 Sep 2024ESS Essex Property TrustREITsSEC FORM 4 Sold$2.3M7,298 at $316.31filing
30 Aug 2024filed 4 Sep 2024ESS Essex Property Trustoption or derivative · REITsSEC FORM 4 Code M—370 at $0.00filing
30 Aug 2024filed 4 Sep 2024ESS Essex Property Trustoption or derivative · REITsSEC FORM 4 Code M—2,083 at $0.00filing
30 Aug 2024filed 4 Sep 2024ESS Essex Property TrustREITsSEC FORM 4 Code M$83K370 at $225.44filing
30 Aug 2024filed 4 Sep 2024ESS Essex Property TrustREITsSEC FORM 4 Sold$111K370 at $300.00filing

Sectors

Health Care22
Real Estate4
Not placed24

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

Related people

Patricia L. WadorsSVP Chief Human Resources Offi · SVP Chief Human Resources Offi at Intuitive Surgical, filing Form 4 there in the last year
Gary LoebEVP & Chief Legal and Complian · EVP & Chief Legal and Complian at Intuitive Surgical, filing Form 4 there in the last year
Fredrik WidmanVP Corporate Controller · VP Corporate Controller at Intuitive Surgical, filing Form 4 there in the last year
Mark BrosiusEVP & Chief Mfg and Supply Cha · EVP & Chief Mfg and Supply Cha at Intuitive Surgical, filing Form 4 there in the last year
Gary S. GuthartDirector · Director at Intuitive Surgical, filing Form 4 there in the last year
Amy L. LaddDirector · Also traded ISRG in the last 90 days
Donald J. TrumpPresident · Also traded ISRG in the last 90 days