What is CUSIP 81686C104?

CUSIP 81686C104 is the security identifier used in SEC filing datasets for SEMR - SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share.

Security Snapshot

SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share (SEMR) Institutional Ownership

Q: Who owns SEMR - SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share based on 13F filings?

1 institution reported positions in SEMR - SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share as of Q2 2026. Open the latest holders period and ownership history tables on this page for position-level details.

CUSIP: 81686C104

13F Institutional Holders and Ownership History from Q1 2021 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

Shares (Excl. Options)

Full value: 2,000 · shares · 30 Jun 2026

Price

$12.00

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Security type / class: Equity / Class A Common Stock, $0.00001 par value per share
Symbol: SEMR
All holders as of 30 Jun 2026: Q2 2026
Total 13F shares: 2,000
Total 13F value: $24,000
Portfolio coverage rank: 0%
Share change: -73,597,216
Value change: -$878,647,085
Number of holders: 1
Shares outstanding: 130,223,041
SEC-reported price per share: $12.00
Insider filing price: $12.00

13F Shares, Excluding Options vs Price

13F Value, Excluding Options

Total Investors

Filing notes and source

Key facts

SEMR - SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share is tracked under CUSIP 81686C104.
1 institution reported positions in Q2 2026.
4 significant owners is listed from Schedule 13D/13G reporting.

Change

Holder count moved from 162 to 1 between Q1 2026 and Q2 2026.
SEC-reported value moved from
$888.8M
Full value: $888,796,585 · USD · 31 Mar 2026
to
$24K
Full value: $24,000 · USD · 30 Jun 2026
.

Research use

You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 1 institution filings for Q2 2026.

Open SEC evidence

Security key

81686C104

13F reference period

Q2 2026

13F holders

13D/G owners

CIK / CUSIP context first

Open Q2 2026 holders SEMR full holder history

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

Recent Quarterly Holder Reports

Open recent reporting periods for CUSIP 81686C104:

Q3 2026 (0 holders) Q2 2026 (1 holder) Q1 2026 (162 holders) Q4 2025 (166 holders) Q3 2025 (168 holders) Q2 2025 (170 holders) Q1 2025 (170 holders) Q4 2024 (164 holders) Q3 2024 (149 holders) Q2 2024 (144 holders)

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows

Security

SEMR

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
Shchegolev Oleg	33%	-5.1%	$447,516,898	-$22,096,018	49,449,381	-4.7%	Shchegolev Oleg	30 Jun 2025
Melnikov Dmitry	18%	-10%	$268,727,414	-$992,637	26,320,021	-0.37%	Melnikov Dmitry	31 Mar 2025
GLAZER CAPITAL, LLC	5.6%		$86,919,032		7,279,468		Glazer Capital, LLC	10 Apr 2026
CAT ROCK CAPITAL MANAGEMENT LP	4.5%		$56,378,405		5,521,881		CAT ROCK CAPITAL MANAGEMENT LP	31 Dec 2024

As of 30 Jun 2026, 1 institutional investors reported holding

Full value: 2,000 · shares · 30 Jun 2026

shares of SEMrush Holdings, Inc. - Class A Common Stock, $0.00001 par value per share (SEMR). This represents 0% of the company’s total

130.22M

Full value: 130,223,041 · shares · Stored outstanding share count

outstanding shares.

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods

Headline period

Q2 2026

Rows shown

1-23 of 23

Period	13F Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2026 Q3	0	$0	-$24,000			$12.00	0
2026 Q2	2,000	$24,000	-$878,647,085	$0	$0	$12.00	1
2026 Q1	74,446,927	$888,796,585	+$115,177,424	$1,293,102	$1,074,600	$11.94	162
2025 Q4	64,453,804	$766,232,106	+$105,664,817	$1,067,722	$43,993	$11.89	166
2025 Q3	67,622,617	$478,771,913	-$18,215,438	$1,045,008	$326,388	$7.08	168
2025 Q2	68,850,437	$623,095,167	+$24,376,129	$1,423,565	$1,066,090	$9.05	170
2025 Q1	66,062,324	$616,455,539	+$6,021,217	$1,077,615	$4,701,387	$9.33	170
2024 Q4	64,092,028	$761,410,917	+$19,361,511	$43,956	$490,644	$11.88	164
2024 Q3	61,241,075	$962,088,512	-$22,046,286	$505,862	$106,828	$15.71	149
2024 Q2	62,997,561	$843,534,051	+$27,205,986	$1,067,183	$297,258	$13.39	144
2024 Q1	60,971,016	$808,467,861	+$54,120,234	$1,742,364	$1,738,386	$13.26	125
2023 Q4	56,953,356	$777,978,034	+$34,810,937	$375,650	$561,426	$13.66	109
2023 Q3	45,556,485	$387,220,817	-$11,829,831	$97,750	$249,900	$8.50	91
2023 Q2	46,900,267	$448,903,771	+$39,455,244	$190,443	$31,581	$9.57	90
2023 Q1	42,716,875	$429,301,464	+$15,425,150	$105,525	$55,275	$10.05	88
2022 Q4	34,434,301	$280,292,375	+$607,193			$8.14	74
2022 Q3	34,319,588	$384,724,613	+$336,412			$11.21	69
2022 Q2	34,204,982	$442,270,850	+$5,443,871			$12.93	68
2022 Q1	33,881,684	$404,512,149	+$133,274,727			$11.94	69
2021 Q4	21,291,238	$443,926,753	+$158,652,680			$20.85	63
2021 Q3	13,777,735	$318,399,512	+$91,662,563			$23.06	47
2021 Q2	9,806,844	$225,739,781	+$61,268,711			$23.02	35
2021 Q1	9,116,375	$108,579,214	+$108,579,214			$11.91	50