Nina Richardson

CIK 1610535 · Chief Operating Officer · last filed 2026-08-06

Nina Richardson is a Chief Operating Officer who has filed 103 SEC Form 4 insider transactions across 8 companies since 2014. The most recent filing shows the insider sold $157.5K of COHU on Aug 6, 2026. Across all open-market trades the lifetime net is −$3.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.8M across reported positions. 24 SEC filings were submitted jointly with RESIDEO TECHNOLOGIES, 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.

Loading insider history…
Disclosed Exposure

$5.83M

Companies

8

Total Filings

103

Lifetime Open-Market Net

-$3.84M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
C/O SILICON LABORATORIES
400 W CESAR CHAVEZ
AUSTIN, TX 78701
Related Filers
RESIDEO TECHNOLOGIES, INC. — 24 joint filings, latest 2026-06-05
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
COHU Director 39,093 $65.97 $2.58M -$530.6K 16 2026-08-06
REZI Director 63,354 $18.12 $1.15M -$410.9K 20 2026-06-05
SLAB Director 9,505 $221.17 $2.10M -$984.7K 18 2026-04-24
Eargo, Inc. (EAR) Delisted Director 0 $2.57 $0 -$311.6K 6 2022-08-25
Zayo Group Holdings, Inc. (ZAYO) Delisted Director 11,845 — — -$247.2K 26 2018-10-11
CALLIDUS SOFTWARE INC (CALD) Delisted Director 12,296 — — $0 2 2017-06-16
SGI Director 0 $62.26 $0 $0 3 2016-11-02
GPRO Chief Operating Officer 0 $1.32 $0 -$1.36M 3 2015-01-30

Recent Filings

103 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
2026-08-06 COHU Sell (S) −3,055 -$157.5K EDGAR
2026-08-06 COHU Sell (S) −3,055 -$157.5K EDGAR
2026-08-05 COHU Notice (144) −3,055 -$157.5K EDGAR
2026-06-05 REZI Grant (A) +5,468 $0 EDGAR
2026-05-19 COHU Grant (A) +3,578 $0 EDGAR
2026-04-24 SLAB Grant (A) +962 $0 EDGAR
2026-04-10 REZI Sell (S) −2,789 -$82.7K EDGAR
2026-01-15 SLAB Sell (S) −1,355 -$201.9K EDGAR
2026-01-13 SLAB Notice (144) −1,355 -$201.9K EDGAR
2025-08-28 REZI Sell (S) −3,333 -$115.1K EDGAR
Showing 1–10 of 103
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.