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KATHERINE A MARTIN

CIK 1218330 · last filed 2025-07-08

KATHERINE A MARTIN is a corporate insider who has filed 43 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for LAZR, was dated Jul 8, 2025. Across all open-market trades the lifetime net is −$3.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.3M across reported positions. 39 SEC filings were submitted jointly with Nuance Communications, Inc.

"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

$3.26M

Companies

2

Total Filings

43

Lifetime Open-Market Net

-$3.48M

Filer Profile

Reported Address
C/O NUANCE COMMUNICATIONS, INC.
ONE WAYSIDE ROAD
BURLINGTON, MA 01803
Related Filers
Nuance Communications, Inc. — 39 joint filings, latest 2018-01-03
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
LAZR Director 76,631 $42.59 $3.26M $132.8K 9 2025-07-08
Nuance Communications, Inc. (NUAN) Delisted Director 103,147 $55.99 $5.78M -$3.61M 34 2018-01-03

Recent Filings

43 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
2025-07-08 LAZR Grant (A) +61,576 $0 EDGAR
2024-06-07 LAZR Grant (A) +123,254 $0 EDGAR
2023-10-02 LAZR Grant (A) +14,245 $75.0K EDGAR
2023-06-09 LAZR Grant (A) +31,855 $0 EDGAR
2022-12-15 LAZR Buy (P) +9,975 $74.9K EDGAR
2022-06-09 LAZR Grant (A) +18,924 $0 EDGAR
2021-12-17 LAZR Buy (P) +3,843 $57.9K EDGAR
2021-06-11 LAZR Grant (A) +9,106 $0 EDGAR
2021-04-02 LAZR Grant (A) +14,627 $0 EDGAR
2018-01-03 Nuance Communications, Inc. (NUAN) Delisted Grant (A) +15,267 $15 EDGAR
Showing 1–10 of 43
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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.