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Sherri R Luther

CIK 1764515 · Chief Financial Officer · last filed 2026-07-24

Sherri R Luther is a Chief Financial Officer who has filed 109 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing shows the insider sold $306.7K of COHR on Jul 24, 2026. Across all open-market trades the lifetime net is −$25.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $28.8M 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

$28.78M

Companies

3

Total Filings

109

Lifetime Open-Market Net

-$25.36M

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
COHR Chief Financial Officer 67,475 $244.11 $16.47M -$2.63M 7 2026-07-24
SLAB Director 6,701 $217.11 $1.45M $0 5 2026-04-24
LSCC SVP, CFO 90,341 $120.16 $10.86M -$22.73M 84 2024-08-21

Recent Filings

109 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
2026-07-24 COHR Sell (S) −1,000 -$306.7K EDGAR
2026-07-22 COHR Notice (144) −1,000 -$317.2K EDGAR
2026-05-13 COHR Sell (S) −2,000 -$745.9K EDGAR
2026-05-12 COHR Notice (144) −2,000 -$759.4K EDGAR
2026-04-24 SLAB Grant (A) +962 $0 EDGAR
2026-04-24 COHR Sell (S) −2,000 -$702.0K EDGAR
2026-04-22 COHR Notice (144) −2,000 -$687.6K EDGAR
2026-02-17 COHR Sell (S) −4,000 -$871.0K EDGAR
2026-02-12 COHR Notice (144) −4,000 -$894.8K EDGAR
2025-10-14 COHR Tax (F) −18,558 -$2.06M EDGAR
Showing 1–10 of 109
Page 1 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.