Vertex VERX Insider Ownership

NASDAQ VERX
$13.77 -0.01 (-0.07%)
At close: Sep 4, 2026 · 4:00 PM EDT

Insider Holdings by Owner

23.49Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
share count not reported for this filer set
Shares Held by Insiders
15.76Mn
filed for Sep 2026
0.00% QoQ
Shares Outstanding
not reported
Direct Holdings
6.05Mn
Indirect: 9.71Mn
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
24
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Vertex's three largest insider shareholders as of September 05, 2026 are Capital Management Lp Tensile (TenPercentOwner, 11.08Mn shares), Jeffery Westphal (TenPercentOwner, 9.05Mn shares), Jeffery Westphal (TenPercentOwner, 9.05Mn shares).

Form 4 Holdings

Insiders Holding VERX

Insiders 24
Shares held 23.49Mn
Of outstanding
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Capital Management Lp Tensile TenPercentOwner 0 16,739,733 16,739,733 71.3% 13 Nov, 2023
2 David Destefano President Ceo 1,974,240 0 1,974,240 8.4% 12 Jun, 2026
3 Second Irr. Trust Fbo Kyle R. Westphal U/A Of Jeffrey R. Westphal Dated October 5, 2001 Item TenPercentOwner 1,221,100 0 1,221,100 5.2% 09 Mar, 2026
4 Second Irr. Trust Fbo Jacob J. Westphal U/A Of Jeffrey R. Westphal Dated October 5, 2001 Item TenPercentOwner, Other 745,706 0 745,706 3.2% 26 Dec, 2024
5 Second Irr. Trust Fbo Mackenzie S. Lucas U/A Of Stefanie W. Lucas Dated October 5, 2001 Item TenPercentOwner, Other 600,000 0 600,000 2.6% 22 May, 2025
6 Second Irr. Trust Fbo Andrea P. Lucas U/A Of Stefanie W. Lucas Dated October 5, 2001 Item TenPercentOwner, Other 400,000 0 400,000 1.7% 22 May, 2025
7 Jeffrey Westphal Other 0 397,740 397,740 1.7% 18 Feb, 2026
8 Second Irr. Trust Fbo Melanie H. Lucas U/A Of Stefanie W. Lucas Dated October 5, 2001 Item TenPercentOwner, Other 300,000 0 300,000 1.3% 22 May, 2025
9 Eric C. Andersen Director 278,409 0 278,409 1.2% 12 Jun, 2026
10 Second Irr. Trust Fbo Anne Marie Westphal U/A Of Jeffrey R. Westphal Dated October 5, 2001 Item TenPercentOwner, Other 173,074 0 173,074 0.7% 24 Jun, 2025
11 Amanda Westphal Radcliffe Director, TenPercentOwner 159,030 0 159,030 0.7% 12 Jun, 2026
12 John R Schwab Chief Financial Officer 132,271 0 132,271 0.6% 25 Feb, 2026
13 Bradley M Gayton Director 68,500 0 68,500 0.3% 12 Jun, 2026
14 Stefanie Westphal Thompson Director, TenPercentOwner 66,995 0 66,995 0.3% 12 Jun, 2026
15 Christopher David Young President And Ceo 0 60,000 60,000 0.3% 25 Feb, 2026
16 Philip Seth Saunders Director 50,606 0 50,606 0.2% 12 Jun, 2026
17 John Richard Stamm Director 32,685 0 32,685 0.1% 12 Jun, 2026
18 Kevin L Robert Director 23,936 0 23,936 0.1% 19 Dec, 2023
19 Irrevocable Trust For Benefit Of Constance A. Thompson 2020 TenPercentOwner, Other 22,500 0 22,500 0.1% 22 May, 2025
20 Mark J Mendola Director 20,965 0 20,965 0.1% 12 Jun, 2026
21 Bryan T.R. Rowland General Counsel 12,872 0 12,872 0.1% 25 Feb, 2026
22 Ryan J Leib Chief Accounting Officer 7,423 0 7,423 0.0% 24 Feb, 2026
23 Lisa Butler Chief Accounting Officer 250 0 250 0.0% 18 Mar, 2024
24 Irrevocable Trust For Benefit Of Nicholas A. Shuhan 2020 TenPercentOwner, Other 0 0 0 0.0% 28 Mar, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

883 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
10 Jun, 2026 Eric C. Andersen Director Acquired A 15,638 $0.00 $0 165,979 Direct
10 Jun, 2026 Philip Seth Saunders Director Acquired A 15,638 $0.00 $0 50,606 Direct
10 Jun, 2026 Bradley M Gayton Director Acquired A 15,638 $0.00 $0 68,500 Direct
10 Jun, 2026 John Richard Stamm Director Acquired A 15,638 $0.00 $0 32,685 Direct
10 Jun, 2026 David Destefano Director Acquired A 15,638 $0.00 $0 1,271,155 Direct
10 Jun, 2026 Mark J Mendola Director Acquired A 15,638 $0.00 $0 20,965 Direct
10 Jun, 2026 Stefanie Westphal Thompson Director, TenPercentOwner Acquired A 15,638 $0.00 $0 66,995 Direct
10 Jun, 2026 Amanda Westphal Radcliffe Director, TenPercentOwner Acquired A 15,638 $0.00 $0 159,030 Direct
28 May, 2026 David Destefano Director Disposed S 6,460 $12.75 $82.37K 197,572 Indirect
09 Mar, 2026 Second Irr. Trust Fbo Kyle R. Westphal U/A Of Jeffrey R. Westphal Dated October 5, 2001 Item TenPercentOwner Disposed P 10,000 $15.05 $150.48K 1,221,100 Direct
24 Feb, 2026 David Destefano Director Acquired M 109,233 $0.00 $0 1,307,500 Direct
24 Feb, 2026 David Destefano Director Disposed F 51,983 $13.26 $689.29K 1,255,517 Direct
24 Feb, 2026 David Destefano Director Disposed M 109,233 $0.00 $0 0 Direct
23 Feb, 2026 John R Schwab Chief Financial Officer Acquired M 30,305 $0.00 $0 148,682 Direct
23 Feb, 2026 Bryan T.R. Rowland General Counsel Acquired M 6,428 $0.00 $0 14,640 Direct
23 Feb, 2026 David Destefano Director Acquired M 101,395 $0.00 $0 1,245,379 Direct
23 Feb, 2026 Christopher David Young President And Ceo Acquired P 60,000 $12.18 $730.79K 60,000 Indirect
23 Feb, 2026 Bryan T.R. Rowland General Counsel Disposed F 1,768 $12.03 $21.27K 12,872 Direct
23 Feb, 2026 John R Schwab Chief Financial Officer Disposed F 16,411 $12.03 $197.42K 132,271 Direct
23 Feb, 2026 David Destefano Director Disposed F 47,112 $12.03 $566.76K 1,198,267 Direct