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Richard Koo

CIK 1611219 · last filed 2021-06-08

Richard Koo is a corporate insider who has filed 11 SEC Form 4 insider transactions across 1 company since 2014. The most recent filing, for AMPH, was dated Jun 8, 2021. Across all open-market trades the lifetime net is −$1.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.1M across reported positions.

"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

$5.08M

Companies

1

Total Filings

11

Lifetime Open-Market Net

-$1.94M

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
AMPH Director 269,289 $18.87 $5.08M -$1.94M 11 2021-06-08

Recent Filings

11 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
2021-06-08 AMPH Grant (A) +6,019 $0 EDGAR
2021-06-02 AMPH Mixed — -$73.7K EDGAR
2020-06-09 AMPH Grant (A) +5,851 $0 EDGAR
2020-05-28 AMPH Mixed — -$146.9K EDGAR
2019-06-13 AMPH Grant (A) +5,491 $0 EDGAR
2018-12-12 AMPH Mixed — -$194.9K EDGAR
2018-06-11 AMPH Grant (A) +6,590 $0 EDGAR
2017-06-12 AMPH Grant (A) +5,844 $0 EDGAR
2016-06-13 AMPH Grant (A) +6,086 $0 EDGAR
2015-05-29 AMPH Grant (A) +8,686 $0 EDGAR
Showing 1–10 of 11
Page 1 of 2
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.