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David W Mason
Chief Legal Officer

David W Mason insider trades: SEMrush Holdings (SEMR) stock sales

Chief Legal Officer, SEMrush Holdings Last trade Mar 5, 2026 64 Form 4 filings
$1.2M
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
46
Open-market trades
since 2018
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where David reports to the SEC

Open-market buys and sales

46 trades reported on SEC Form 4, newest first

DateStockTypeValue
Mar 5, 2026SEMR↓ Sell$1.2M
Jun 3, 2025SEMR↓ Sell$75K
Mar 3, 2025SEMR↓ Sell$102K
Feb 3, 2025SEMR↓ Sell$32K
Nov 4, 2024SEMR↓ Sell$21K
Aug 2, 2024SEMR↓ Sell$22K
May 2, 2024SEMR↓ Sell$20K
Feb 2, 2024SEMR↓ Sell$21K
Nov 2, 2023SEMR↓ Sell$49K
Oct 3, 2022EVER↓ Sell10b5-1$2K
Aug 17, 2022EVER↓ Sell10b5-1$4K
Aug 8, 2022EVER↓ Sell10b5-1$18K
Aug 2, 2022EVER↓ Sell10b5-1$10K
Jul 1, 2022EVER↓ Sell10b5-1$8K
May 5, 2022EVER↓ Sell10b5-1$13K
Aug 4, 2021EVER↓ Sell10b5-1$51K
Jun 7, 2021EVER↓ Sell10b5-1$64K
May 5, 2021EVER↓ Sell10b5-1$105K
Mar 31, 2021EVER↓ Sell10b5-1$63K
Mar 15, 2021EVER↓ Sell10b5-1$291K
Feb 25, 2021EVER↓ Sell$506K
Nov 6, 2020EVER↓ Sell$281K
Nov 2, 2020EVER↓ Sell10b5-1$69K
Oct 5, 2020EVER↓ Sell10b5-1$146K
Sep 4, 2020EVER↓ Sell10b5-1$74K
Jul 1, 2020EVER↓ Sell10b5-1$118K
May 4, 2020EVER↓ Sell10b5-1$79K
Apr 6, 2020EVER↓ Sell10b5-1$109K
Mar 2, 2020EVER↓ Sell10b5-1$432K
Nov 8, 2019EVER↓ Sell$405K
Aug 8, 2019EVER↓ Sell$77K
May 6, 2019EVER↓ Sell10b5-1$13K
May 1, 2019EVER↓ Sell$120K
Apr 15, 2019EVER↓ Sell10b5-1$18K
Apr 4, 2019EVER↓ Sell$26K
Mar 29, 2019EVER↓ Sell10b5-1$5K
Mar 7, 2019EVER↓ Sell10b5-1$8K
Feb 26, 2019EVER↓ Sell$41K
Feb 15, 2019EVER↓ Sell10b5-1$4K
Feb 5, 2019EVER↓ Sell10b5-1$10K
Jan 14, 2019EVER↓ Sell10b5-1$1K
Jan 7, 2019EVER↓ Sell10b5-1$14K
Jan 4, 2019EVER↓ Sell10b5-1$3K
Jan 2, 2019EVER↓ Sell$35K
Dec 31, 2018EVER↓ Sell10b5-1$27K
Jul 2, 2018EVER↓ Sell$864K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other SEMR insiders

Open-market trades in the last 12 months

About David W Mason's insider trades

David W Mason is Chief Legal Officer at SEMrush Holdings (SEMR). Since Jul 2, 2018, David has reported no open-market purchases and 46 sales worth $5.6M on SEC Form 4. In the last 12 months: 1 sale ($1.2M).

28 sales (31% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.

Their filings also include grants and awards (16 filings), shares withheld for taxes (10 filings), shares returned to the company (6 filings), option exercises (5 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SEMR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.