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GRAHAM PETER LIDGARD

CIK 1216274 · Chief Science Officer · last filed 2021-03-15

GRAHAM PETER LIDGARD is a Chief Science Officer who has filed 62 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for EXAS, was dated Mar 15, 2021. Across all open-market trades the lifetime net is −$51.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $101.9K 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

$101.9K

Companies

2

Total Filings

62

Lifetime Open-Market Net

-$50.95M

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
EXACT SCIENCES CORP (EXAS) Delisted Chief Science Officer 43,040 $104.91 $4.52M -$50.95M 58 2021-03-15
NGEN Sr. VP R&D, CTO 59,618 $1.71 $101.9K $708 4 2009-01-21

Recent Filings

62 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
2021-03-15 EXACT SCIENCES CORP (EXAS) Delisted Mixed — -$4.49M EDGAR
2021-03-10 EXACT SCIENCES CORP (EXAS) Delisted Exer (M) +4,612 $100.0K EDGAR
2021-03-08 EXACT SCIENCES CORP (EXAS) Delisted Sell (S) −11,735 -$1.42M EDGAR
2021-03-03 EXACT SCIENCES CORP (EXAS) Delisted Mixed +2,501 -$349.4K EDGAR
2021-03-02 EXACT SCIENCES CORP (EXAS) Delisted Mixed +1,660 -$220.3K EDGAR
2021-02-25 EXACT SCIENCES CORP (EXAS) Delisted Mixed +5,733 -$796.3K EDGAR
2021-02-23 EXACT SCIENCES CORP (EXAS) Delisted Grant (A) — $0 EDGAR
2021-02-18 EXACT SCIENCES CORP (EXAS) Delisted Mixed +1,841 -$304.0K EDGAR
2018-11-07 EXACT SCIENCES CORP (EXAS) Delisted Sell (S) −38,311 -$2.87M EDGAR
2018-11-02 EXACT SCIENCES CORP (EXAS) Delisted Sell (S) −79,673 -$5.71M EDGAR
Showing 1–10 of 62
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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.