Amal M Johnson

CIK 1388397 · last filed 2026-05-14

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$6.23M

Companies

4

Total Filings

110

Lifetime Open-Market Net

-$42.13M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ESS Director 4,324 $279.00 $1.21M -$5.28M 14 2026-05-14
ISRG Director 13,545 $369.25 $5.00M -$32.00M 44 2026-04-30
CAMP Director 4,675 $3.79 $17.7K $231.3K 11 2021-07-30
Mellanox Technologies, Ltd. (MLNX) Delisted Director 0 -$5.08M 34 2020-04-27

Recent Filings · Page 4 of 11

110 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2021-11-26 ISRG Mixed -$2.02M EDGAR
2021-11-12 ISRG Gift (G) −500 $0 EDGAR
2021-08-12 ISRG Mixed -$2.02M EDGAR
2021-07-30 CAMP Grant (A) +10,466 $0 EDGAR
2021-05-14 CAMP Buy (P) +5,000 $60.6K EDGAR
2021-05-13 ISRG Mixed -$1.56M EDGAR
2021-05-13 ESS Grant (A) $0 EDGAR
2021-04-23 ISRG Mixed +255 $0 EDGAR
2020-08-26 ISRG Gift (G) −6,000 $0 EDGAR
2020-07-31 CAMP Grant (A) +12,800 $0 EDGAR
Showing 3140 of 110
Page 4 of 11
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.