SEC ownership of 8X8 INC /DE/

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001023731.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

SYLEBRA CAPITAL LLC

Comparable rows

50/50

Latest evidence

27 Jul 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
27 Jul 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001023731
Issuer location
Campbell, CA

Ownership snapshot

Top shareholders of 8X8 INC /DE/ (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BlackRock, Inc.
Disclosed value leader
SYLEBRA CAPITAL LLC
Comparable rows
50/50
Latest evidence
27 Jul 2026
13F 13D/G 3/4/5 Lead comparable stake: 7% 13D/G row: BlackRock, Inc. Showing 1-8 of 50 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 7%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 5
BlackRock, Inc. 7%
VANGUARD PORTFOLIO MANAGEMENT LLC 5.4%
SYLEBRA CAPITAL LLC 4.8%
Boston Partners 4.8%
BANK OF AMERICA CORP /DE/ 4.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BlackRock, Inc.
13F 13D/G
Company
7%
from 13D/G
$19,814,678
11,936,552 shares
31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G 13F
Vanguard Portfolio Management · Company
5.4%
$12,417,849
7,480,632 shares
$0 31 Mar 2026
SYLEBRA CAPITAL LLC
3/4/5 13D/G 13F
10%+ Owner · Company
4.8%
from 13D/G
$24,669,463
13,781,823 shares
11 Jun 2025
Boston Partners
13D/G 13F
Company
4.8%
$11,346,336
6,674,315 shares
-$845,835 31 Mar 2026
BANK OF AMERICA CORP /DE/
13D/G 13F
Company
4.3%
$12,530,741
5,910,727 shares
-$2,458,337 30 Sep 2025
ArrowMark Colorado Holdings LLC
13D/G 13F
Company
1.9%
$5,522,151
2,604,788 shares
-$17,169,729 30 Jun 2025
Samuel C. Wilson
3/4/5
Chief Executive Officer
1.9%
$4,312,283
2,597,761 shares
15 Jun 2026
Kevin Kraus
3/4/5
Chief Financial Officer
0.71%
$1,647,803
992,653 shares
15 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$271,880.

Buys
$0
Insiders: 0
Sells
$271,880
Insiders: 3
Net
-$271,880
Shares: -115,251
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 115,251
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 20,207 $0 $36,575 -$36,575
3-6 0 90,044 $0 $225,546 -$225,546
6-9 0 5,000 $0 $9,760 -$9,760
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 22 reporting-owner rows connected to 8X8 INC /DE/. Open a relationship link for the CIK-to-CIK filing trail.

Rows
22
Largest Forms 3/4/5 holder
Sylebra Capital Ltd
Net 12M change
-$271,881
Latest report
27 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Sylebra Capital Ltd 10%+ Owner $50,363,166 Mixed 25 May 2023
SYLEBRA CAPITAL LLC 10%+ Owner $24,669,463 Filing P/S 11 Jun 2025
Samuel C. Wilson Chief Executive Officer $4,312,283 Mixed 15 Jun 2026
David Sipes Chief Executive Officer $3,680,149 Mixed 16 Sep 2022
Bryan R. Martin Chief Technology Officer, Director $1,675,129 Mixed 18 Oct 2021
Kevin Kraus Chief Financial Officer $1,647,803 Mixed 15 Jun 2026
Hunter Middleton Chief Product Officer $1,483,525 -$212,814 -13% Mixed 15 Jun 2026
Laurence Denny Chief Legal Officer $1,013,647 -$22,492 -2.2% Mixed 15 Jun 2026
Matthew Zinn SVP-CLO, Secretary $976,630 Mixed 17 Oct 2022
Stephanie Garcia Chief Human Resources Officer $775,943 Mixed 15 Jun 2022
Suzy M. Seandel Chief Accounting Officer $715,167 Mixed 15 Jun 2026
Jaswinder Pal Singh Director $626,205 Mixed 25 Jul 2025
Eric Salzman Director $577,829 Mixed 28 Jul 2023
Vladimir S. Jacimovic Director $550,165 Mixed 15 Jul 2022
Dejan Deklich Chief Products Officer $550,095 Mixed 18 Jan 2022
Todd R. Ford Director $541,315 Mixed 25 Jul 2025
Alison Gleeson Director $451,970 Mixed 25 Jul 2025
Andrew F. Burton Director $417,240 Mixed 25 Jul 2025
Elizabeth Harriet Theophille Director $302,425 -$36,575 -11% Filing P/S 27 Jul 2026
Monique Bonner Director $297,998 Median 25 Jul 2026

Recent insider transactions for 8X8 INC /DE/

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Elizabeth Harriet Theophille EGHT Common Stock Sale -10.8% $36,575 $1.81 -20,207 167,086 27 Jul 2026 Direct
John Pagliuca EGHT Common Stock Disposed to Issuer -47.9% -66,502 72,413 27 Jul 2026 Direct
Monique Bonner EGHT Common Stock Disposed to Issuer -27.6% -66,502 174,268 25 Jul 2026 Direct
Monique Bonner EGHT Common Stock Options Exercise 38.2% 66,502 240,770 25 Jul 2026 Direct
Monique Bonner EGHT Restricted Stock Unit Options Exercise -100% -66,502 0 25 Jul 2026 Direct
John Pagliuca EGHT Common Stock Options Exercise 91.8% 66,502 138,915 25 Jul 2026 Direct
John Pagliuca EGHT Restricted Stock Unit Options Exercise -100% -66,502 0 25 Jul 2026 Direct
Laurence Denny EGHT Common Stock Tax liability -1.25% -7,747 610,631 15 Jun 2026 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -1.52% -40,068 2,597,761 15 Jun 2026 Direct
Hunter Middleton EGHT Common Stock Tax liability -1.77% -16,112 893,690 15 Jun 2026 Direct
Kevin Kraus EGHT Common Stock Tax liability -1.77% -17,854 992,653 15 Jun 2026 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -1.33% -5,793 430,824 15 Jun 2026 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -3.8% -104,221 2,637,829 06 Jun 2026 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -5.53% -25,567 436,617 06 Jun 2026 Direct
Hunter Middleton EGHT Common Stock Tax liability -4.3% -40,907 909,802 06 Jun 2026 Direct
Kevin Kraus EGHT Common Stock Tax liability -4.05% -42,612 1,010,507 06 Jun 2026 Direct
Laurence Denny EGHT Common Stock Tax liability -3.95% -25,404 618,378 06 Jun 2026 Direct
Laurence Denny EGHT Common Stock Award 57.3% 234,500 643,782 01 Jun 2026 Direct
Kevin Kraus EGHT Common Stock Award 50.2% 351,750 1,053,119 01 Jun 2026 Direct
Hunter Middleton EGHT Common Stock Award 35.9% 251,250 950,709 01 Jun 2026 Direct
Samuel C. Wilson EGHT Common Stock Award 41.5% 804,000 2,742,050 01 Jun 2026 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -5.71% -27,154 448,689 27 May 2026 Direct
Suzy M. Seandel EGHT Common Stock Award 12.6% 53,371 476,161 27 May 2026 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -7% -141,695 1,883,041 27 May 2026 Direct
Samuel C. Wilson EGHT Common Stock Award 16.2% 278,489 1,995,030 27 May 2026 Direct
Hunter Middleton EGHT Common Stock Tax liability -7.66% -56,250 677,867 27 May 2026 Direct
Hunter Middleton EGHT Common Stock Award 18.1% 110,556 721,823 27 May 2026 Direct
Kevin Kraus EGHT Common Stock Tax liability -8.24% -60,947 678,878 27 May 2026 Direct
Kevin Kraus EGHT Common Stock Award 19.8% 119,787 724,665 27 May 2026 Direct
Laurence Denny EGHT Common Stock Tax liability -7.58% -32,098 391,424 27 May 2026 Direct
Laurence Denny EGHT Common Stock Award 21% 73,371 423,170 27 May 2026 Direct
Hunter Middleton EGHT Common Stock Tax liability -2.68% -17,790 645,153 15 Mar 2026 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -1.45% -6,396 435,967 15 Mar 2026 Direct
Laurence Denny EGHT Common Stock Tax liability -2.33% -8,762 368,009 15 Mar 2026 Direct
Kevin Kraus EGHT Common Stock Tax liability -2.98% -19,714 642,529 15 Mar 2026 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -2.27% -41,818 1,801,256 15 Mar 2026 Direct
Laurence Denny EGHT Common Stock Sale -1.31% $12,732 $2.55 -5,000 376,771 17 Feb 2026 Direct
Hunter Middleton EGHT Common Stock Sale -11.5% $212,814 $2.50 -85,044 652,943 04 Feb 2026 Direct
Kevin Kraus EGHT Common Stock Tax liability -2.62% -17,818 662,243 15 Dec 2025 Direct
Hunter Middleton EGHT Common Stock Tax liability -2.13% -16,079 737,987 15 Dec 2025 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -1.32% -5,782 432,363 15 Dec 2025 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -2.13% -39,988 1,833,074 15 Dec 2025 Direct
Laurence Denny EGHT Common Stock Tax liability -2.51% -9,842 381,771 15 Dec 2025 Direct
Laurence Denny EGHT Common Stock Sale -1.26% $9,760 $1.95 -5,000 391,613 01 Dec 2025 Direct
Laurence Denny EGHT Common Stock Tax liability -5.29% -22,146 396,613 15 Sep 2025 Direct
Kevin Kraus EGHT Common Stock Tax liability -5.97% -43,208 680,061 15 Sep 2025 Direct
Hunter Middleton EGHT Common Stock Tax liability -4.91% -38,930 754,066 15 Sep 2025 Direct
Samuel C. Wilson EGHT Common Stock Tax liability -4.93% -97,116 1,873,062 15 Sep 2025 Direct
Suzy M. Seandel EGHT Common Stock Tax liability -3.24% -14,669 438,145 15 Sep 2025 Direct
* marks a reported price that did not pass the local price check.
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