Mason David W (CIK 0001744907)

Latest company ownership

SEMR - SEMrush Holdings, Inc.
Role: Chief Legal Officer
Shares held
251,336
Last filed at
Dec 2, 2025
Confidence Score
80.5
2025Q4
Confidence Score History
2023Q4 2025Q4
EVER - EverQuote, Inc.
Role: General Counsel and Secretary
Shares held
191,243
Last filed at
Oct 5, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 15, 2025 Dec 17, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 97.5 +117,284 46.66% ✗ $309K
Dec 1, 2025 Dec 2, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 46.3 -3,592 -1.41% ✗ $42.5K
Nov 1, 2025 Nov 3, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 48.8 -2,537 -0.99% ✗ $18.4K
Sep 1, 2025 Sep 2, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 48.8 -2,486 -0.96% ✗ $19.6K
Aug 1, 2025 Aug 4, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 48.8 -1,751 -0.67% ✗ $14.9K
Jun 3, 2025 Jun 4, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 22.5 -7,500 -2.79% ✗ $75.2K
Jun 1, 2025 Jun 2, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 48.8 -2,181 -0.80% ✗ $21.5K
May 1, 2025 May 2, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 48.8 -1,541 -0.56% ✗ $16K
Mar 1, 2025 Mar 5, 2025 SEMrush Holdings, Inc. Chief Legal Officer Sell 95.0 +114,509 72.28% ✗ $101.7K
Feb 3, 2025 Feb 4, 2025 SEMrush Holdings, Inc. General Counsel Sell 46.3 -1,875 -1.17% ✗ $32.2K
Nov 4, 2024 Nov 5, 2024 SEMrush Holdings, Inc. General Counsel Sell 48.8 -1,589 -0.98% ✗ $20.9K
Aug 2, 2024 Aug 6, 2024 SEMrush Holdings, Inc. General Counsel Sell 46.3 -1,667 -1.02% ✗ $22.5K
May 2, 2024 May 3, 2024 SEMrush Holdings, Inc. General Counsel Sell 48.8 -1,549 -0.94% ✗ $19.5K
Feb 2, 2024 Feb 6, 2024 SEMrush Holdings, Inc. General Counsel Sell 46.3 -1,876 -2.41% ✗ $21.1K
Nov 2, 2023 Nov 6, 2023 SEMrush Holdings, Inc. General Counsel Sell 46.3 -6,163 -7.34% ✗ $48.6K
Oct 3, 2022 Oct 5, 2022 EverQuote, Inc. General Counsel and Secretary Sell 51.3 -1,594 -0.83% ✓ $10.8K
Aug 17, 2022 Aug 18, 2022 EverQuote, Inc. General Counsel and Secretary Sell 55.0 -425 -0.22% ✓ $4.1K
Aug 8, 2022 Aug 9, 2022 EverQuote, Inc. General Counsel and Secretary Sell 51.3 -1,540 -0.79% ✓ $18.5K
Aug 2, 2022 Aug 4, 2022 EverQuote, Inc. General Counsel and Secretary Sell 52.5 -925 -0.47% ✓ $10.2K
Jun 30, 2022 Jul 5, 2022 EverQuote, Inc. General Counsel and Secretary Sell 48.8 -2,144 -1.08% ✓ $19.2K
May 5, 2022 May 6, 2022 EverQuote, Inc. General Counsel and Secretary Sell 51.3 -1,000 -0.50% ✓ $12.9K
Apr 1, 2022 Apr 4, 2022 EverQuote, Inc. General Counsel and Secretary Sell 48.8 -1,266 -0.63% ✗ $21K
Aug 4, 2021 Aug 6, 2021 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.77% ✓ $51.1K
Jun 7, 2021 Jun 9, 2021 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.74% ✓ $64.2K
May 5, 2021 May 7, 2021 EverQuote, Inc. General Counsel and Secretary Sell 41.3 -3,125 -2.65% ✓ $104.6K
Mar 31, 2021 Apr 2, 2021 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -1,799 -1.50% ✓ $63.5K
Mar 15, 2021 Mar 17, 2021 EverQuote, Inc. General Counsel and Secretary Sell 30.0 -7,197 -5.67% ✓ $290.8K
Feb 25, 2021 Mar 1, 2021 EverQuote, Inc. General Counsel and Secretary Sell 20.0 -10,013 -8.39% ✗ $506.2K
Nov 6, 2020 Nov 9, 2020 EverQuote, Inc. General Counsel and Secretary Sell 20.0 -7,125 -5.64% ✗ $280.7K
Nov 2, 2020 Nov 4, 2020 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.56% ✓ $68.7K
Oct 5, 2020 Oct 7, 2020 EverQuote, Inc. General Counsel and Secretary Sell 41.3 -3,799 -2.87% ✓ $146.3K
Sep 4, 2020 Sep 9, 2020 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.49% ✓ $74.5K
Jul 1, 2020 Jul 6, 2020 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.47% ✓ $118.3K
May 4, 2020 May 6, 2020 EverQuote, Inc. General Counsel and Secretary Sell 45.0 -2,000 -1.45% ✓ $78.6K
Apr 6, 2020 Apr 9, 2020 EverQuote, Inc. General Counsel and Secretary Sell 41.3 -4,000 -2.81% ✓ $108.5K
Feb 27, 2020 Mar 2, 2020 EverQuote, Inc. General Counsel and Secretary Sell 30.0 -10,925 -7.13% ✓ $432.3K
Nov 8, 2019 Nov 8, 2019 EverQuote, Inc. General Counsel and Secretary Sell 20.0 -13,900 -9.29% ✗ $405.5K
Aug 8, 2019 Aug 12, 2019 EverQuote, Inc. General Counsel and Secretary Sell 22.5 -4,000 -2.60% ✗ $77.1K
May 2, 2019 May 6, 2019 EverQuote, Inc. General Counsel and Secretary Sell 48.8 -1,555 -1.00% ✓ $13.1K
Apr 29, 2019 May 1, 2019 EverQuote, Inc. General Counsel and Secretary Sell 41.3 -13,348 -2.83% ✓ $120.1K
Apr 15, 2019 Apr 17, 2019 EverQuote, Inc. General Counsel and Secretary Sell 48.8 -2,096 -1.29% ✓ $17.7K
Apr 1, 2019 Apr 4, 2019 EverQuote, Inc. General Counsel and Secretary Sell 78.8 +3,847 2.43% ✓ $25.6K
Mar 29, 2019 Apr 1, 2019 EverQuote, Inc. General Counsel and Secretary Sell 53.8 -650 -0.41% ✓ $4.8K
Mar 5, 2019 Mar 7, 2019 EverQuote, Inc. General Counsel and Secretary Sell 52.5 -1,090 -0.68% ✓ $8.3K
Feb 26, 2019 Feb 28, 2019 EverQuote, Inc. General Counsel and Secretary Sell 41.3 -5,843 -3.60% ✓ $41K