Vaccinex VCNX Insider Ownership

OTC VCNX
$0.69 -0.02 (-2.16%)
As of: Oct 21, 2026 · 10:31 AM EDT

Insider Holdings by Owner

1.35Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
1.37Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
—
not reported
Direct Holdings
3.67K
Indirect: 1.37Mn
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
4
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

Business Quant data puts insider holdings in VCNX at 1.37Mn shares across insiders' latest Form 4 filings, unchanged from 1.37Mn shares at the end of Q2 2026 and down 0.50% from 1.38Mn shares at the end of Q3 2025.

Form 4 Holdings

Insiders Holding VCNX

Insiders 4
Shares held 1.35Mn
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Albert Friedberg Director, TenPercentOwner 0 1,051,389 1,051,389 77.8% 18 Nov, 2024
2 Maurice Zauderer President And Ceo 0 297,941 297,941 22.1% 18 Nov, 2024
3 Jacob B. Frieberg Director 0 919 919 0.1% 28 Nov, 2022
4 Strydonck, Gerald E. Van Director 543 0 543 0.0% 14 May, 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

231 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
14 Nov, 2024 Albert Friedberg Director, TenPercentOwner Acquired A 30,756 $3.25 $99.96K 1,051,389 Indirect
14 Nov, 2024 Maurice Zauderer President And Ceo Acquired A 46,153 $3.25 $150.00K 297,941 Indirect
14 Nov, 2024 Albert Friedberg Director, TenPercentOwner Acquired A 584,646 $3.25 $1.90Mn 584,646 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Acquired M 38,610 $5.64 $217.61K 176,748 Indirect
18 Sep, 2024 Albert Friedberg Director, TenPercentOwner Acquired M 214,286 $5.64 $1.21Mn 994,910 Indirect
18 Sep, 2024 Albert Friedberg Director, TenPercentOwner Acquired M 25,723 $5.64 $144.97K 1,020,633 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Acquired M 29,557 $5.64 $166.58K 206,305 Indirect
18 Sep, 2024 Albert Friedberg Director, TenPercentOwner Disposed M 214,286 $0.00 $0 0 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Acquired M 9,768 $5.64 $55.05K 216,073 Indirect
18 Sep, 2024 Albert Friedberg Director, TenPercentOwner Disposed M 25,723 $0.00 $0 92,504 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Acquired M 35,715 $5.64 $201.29K 251,788 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Disposed M 38,610 $0.00 $0 0 Indirect
18 Sep, 2024 Albert Friedberg Director, TenPercentOwner Acquired A 653,210 $0.13 $81.65K 653,210 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Disposed M 29,557 $0.00 $0 0 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Disposed M 9,768 $0.00 $0 0 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Disposed M 35,715 $0.00 $0 0 Indirect
18 Sep, 2024 Maurice Zauderer President And Ceo Acquired A 170,475 $0.13 $21.31K 170,475 Indirect
09 Aug, 2024 Albert Friedberg Director, TenPercentOwner Acquired P 100 $4.51 $451 780,624 Indirect
05 Aug, 2024 Albert Friedberg Director, TenPercentOwner Acquired P 3,653 $4.60 $16.80K 777,771 Indirect
06 Aug, 2024 Albert Friedberg Director, TenPercentOwner Acquired P 2,753 $4.92 $13.54K 780,524 Indirect