Sadie Stern

CIK 1797971 · EVP Chief People & Culture Off · last filed 2026-05-27

Sadie Stern is an EVP Chief People & Culture Off who has filed 55 SEC Form 4 insider transactions across 3 companies since 2020. The most recent filing shows the insider had shares withheld for taxes covering $104.3K of DXCM on May 27, 2026. Across all open-market trades the lifetime net is −$7.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $12.2M 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.

Loading insider history…
Disclosed Exposure

$12.24M

Companies

3

Total Filings

55

Lifetime Open-Market Net

-$7.71M

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
DXCM EVP Chief People & Culture Off 130,059 $91.48 $11.90M -$7.68M 37 2026-05-27
Sonendo, Inc. (SONX) Delisted Director 300 $0.60 $180 $0 2 2023-06-20
DDD EVP, People and Culture 94,378 $3.62 $341.6K -$30.4K 4 2020-08-18

Recent Filings

55 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
2026-05-27 DXCM Tax (F) −1,451 -$104.3K EDGAR
2026-03-10 DXCM Mixed +21,820 -$1.17M EDGAR
2026-02-02 DXCM Mixed +4,467 -$194.8K EDGAR
2025-09-08 DXCM Sell (S) −1,466 -$117.3K EDGAR
2025-09-04 DXCM Notice (144) −1,466 -$117.3K EDGAR
2025-07-29 DXCM Sell (S) −1,466 -$130.5K EDGAR
2025-07-28 DXCM Notice (144) −1,466 -$130.5K EDGAR
2025-06-30 DXCM Sell (S) −1,466 -$124.7K EDGAR
2025-06-26 DXCM Notice (144) −1,466 -$124.7K EDGAR
2025-05-28 DXCM Sell (S) −6,184 -$526.3K EDGAR
Showing 110 of 55
Page 1 of 6
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.