Natalie Glance

CIK 1870350 · Chief Engineering Officer · last filed 2026-05-19

Natalie Glance is a Chief Engineering Officer who has filed 80 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for DUOL, was dated May 19, 2026. Across all open-market trades the lifetime net is −$45.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $23.5M 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.

Disclosed Exposure

$23.48M

Companies

1

Total Filings

80

Lifetime Open-Market Net

-$45.30M

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
DUOL	Chief Engineering Officer	176,891	$132.75	$23.48M	-$45.30M	56	2026-05-19

Recent Filings

80 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
2026-05-19	DUOL	Mixed	+33,769	$3.78M	EDGAR
2026-05-18	DUOL	Notice (144)	−3,360	-$376.5K	EDGAR
2026-05-15	DUOL	Notice (144)	−1,929	-$216.3K	EDGAR
2026-03-03	DUOL	Exer (M)	+24,252	$147.5K	EDGAR
2026-02-20	DUOL	Sell (S)	−5,286	-$594.0K	EDGAR
2026-02-18	DUOL	Notice (144)	−3,545	-$397.3K	EDGAR
2026-02-17	DUOL	Notice (144)	−1,741	-$191.6K	EDGAR
2025-12-09	DUOL	Exer (M)	+9,500	$47.5K	EDGAR
2025-11-19	DUOL	Sell (S)	−5,005	-$885.3K	EDGAR
2025-11-18	DUOL	Notice (144)	−2,471	-$440.5K	EDGAR

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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.