Question 1

Who are the insiders buying SEMrush Holdings, Inc. stock?

Accepted Answer

InsiderAct tracks all open-market purchases of SEMrush Holdings, Inc. stock by corporate insiders — including officers, directors, and shareholders owning more than 10% — sourced from public SEC Form 4 filings.

Question 2

What does insider buying at a company mean?

Accepted Answer

When a corporate officer, director, or major shareholder purchases their own company's stock on the open market using personal funds, it signals confidence in the company's outlook. This is especially meaningful when multiple insiders buy within the same 7–14 day window (cluster buying) or when the purchase size exceeds $100,000.

Question 3

How do I find cluster buying signals for a company?

Accepted Answer

InsiderAct automatically detects cluster buying — two or more insiders independently purchasing shares within a 14-day window. When a cluster buy signal is active for a company, it appears prominently on the company's InsiderAct page and on the Signals tab.

Question 4

Has SEMrush Holdings, Inc. had any recent large insider purchases?

Accepted Answer

InsiderAct tracks all open-market purchases of $100,000 or more at SEMrush Holdings, Inc.. Large insider purchases are flagged as high-conviction signals because they represent meaningful personal capital commitments by executives or directors who have direct visibility into the company's operations and prospects.

Question 5

Where do the insider transactions on this page come from?

Accepted Answer

All transactions shown on InsiderAct company pages are sourced directly from SEC EDGAR Form 4 filings — the mandatory public disclosures that corporate insiders must submit within 2 business days of any stock transaction. InsiderAct ingests these filings in near real time and filters for open-market purchases and sales.


2026-04-29	2026-04-28	Mason David W	CLO	Disposition	144,717	$11.91	$1,723,579
2026-04-29	2026-04-28	Mason David W	CLO	Disposition	271,248	$12.00	$3,254,976
2026-04-29	2026-04-28	Wagner William Raymond	CEO	Disposition	1,630,097	$12.00	$19,561,164
2026-04-29	2026-04-28	Tsay Caroline J	Director	Disposition	44,389	$12.00	$532,668
2026-04-29	2026-04-28	Blake Katryn	Director	Disposition	68,393	$12.00	$820,716
2026-04-29	2026-04-28	Blake Katryn	Director	Disposition	60,000	$3.39	$203,400
2026-04-29	2026-04-28	Aldrich Steven	Director	Disposition	56,886	$12.00	$682,632
2026-04-29	2026-04-28	Vranesh Mark	Director	Disposition	60,000	$3.39	$203,400
2026-04-29	2026-04-28	Vranesh Mark	Director	Disposition	116,693	$12.00	$1,400,316
2026-04-29	2026-04-28	Vranesh Mark	Director	Disposition	110,700	$0.79	$87,453

SEMR

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