Ouster OUST Insider Ownership

NASDAQ OUST
$36.83 -0.66 (-1.76%)
As of: Sep 9, 2026 · 12:52 PM EDT

Insider Holdings by Owner

8.74Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
12.21%
-0.023% pp QoQ
Shares Held by Insiders
7.08Mn
filed for Sep 2026
-0.18% QoQ
Shares Outstanding
57.98Mn
57,976,375 shares
Direct Holdings
4.63Mn
Indirect: 2.44Mn
Net Shares Traded (QoQ)
-13.09K
net selling in Sep 2026
Insiders Holding Shares
27
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

Ouster's three largest insider shareholders as of September 09, 2026 are Krishna Kantheti (TenPercentOwner, 2.44Mn shares), Krishna Kantheti (TenPercentOwner, 2.44Mn shares), Krishna Kantheti (TenPercentOwner, 2.44Mn shares).

Form 4 Holdings

Insiders Holding OUST

Insiders 27
Shares held 8.74Mn
Of outstanding 15.08%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Krishna Kantheti TenPercentOwner 0 2,443,226 2,443,226 28.0% 17 Aug, 2023
2 Remy W Trafelet Director 1,661,450 0 1,661,450 19.0% 09 Jan, 2023
3 Charles Angus Pacala President And Ceo 1,634,582 0 1,634,582 18.7% 16 Jun, 2026
4 Mark Frichtl Chief Technology Officer 337,765 0 337,765 3.9% 04 Sep, 2026
5 Darien Spencer Chief Operating Officer 299,807 0 299,807 3.4% 05 Aug, 2026
6 Kenneth P. Gianella Chief Financial Officer 261,014 0 261,014 3.0% 19 Aug, 2026
7 Anna Brunelle Chief Financial Officer 232,062 0 232,062 2.7% 20 Dec, 2022
8 Virginia Boulet Director 230,000 0 230,000 2.6% 12 May, 2026
9 Megan Chung General Counsel And Secretary 202,859 0 202,859 2.3% 16 Jun, 2026
10 Riaz Valani Director 186,254 0 186,254 2.1% 14 Feb, 2023
11 Mark Weinswig Chief Financial Officer 173,960 0 173,960 2.0% 16 Dec, 2024
12 Shauna Mcintyre Pres. Of Ouster Automotive 157,225 0 157,225 1.8% 26 Oct, 2021
13 Ted L Iii Tewksbury Director 124,999 0 124,999 1.4% 22 Jun, 2026
14 Cyrille Jacquemet Chief Revenue Officer 114,435 0 114,435 1.3% 16 Jun, 2026
15 Nathan Dickerman President Of Field Operations 104,069 0 104,069 1.2% 17 Aug, 2023
16 Ernest E Maddock Director 88,902 0 88,902 1.0% 22 Jun, 2026
17 Christina Correia Director 76,415 0 76,415 0.9% 22 Jun, 2026
18 Adam Dolinko Officer 71,485 0 71,485 0.8% 14 Dec, 2022
19 Chen Geng Interim Cfo 68,090 0 68,090 0.8% 25 Mar, 2025
20 Stephen A Skaggs Director 61,415 0 61,415 0.7% 07 Aug, 2026
21 Karin Radstrom Director 60,148 0 60,148 0.7% 09 Oct, 2024
22 Kristin Slanina Director 46,421 0 46,421 0.5% 09 Jul, 2024
23 Susan Heystee Interim Chief Revenue Officer 40,479 0 40,479 0.5% 08 Jul, 2026
24 Phillip Eyler Director 20,383 0 20,383 0.2% 22 Jun, 2026
25 Emmanuel T Hernandez Director 15,355 0 15,355 0.2% 09 Jan, 2023
26 Sundari Mitra Director 13,931 0 13,931 0.2% 09 Jan, 2023
27 Calvo Jorge A Del Director 13,395 0 13,395 0.2% 07 Oct, 2022

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

853 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
02 Sep, 2026 Mark Frichtl Chief Technology Officer Disposed G 38,745 $0.00 $0 337,765 Direct
26 Aug, 2026 Mark Frichtl Chief Technology Officer Acquired M 100,000 $14.22 $1.42Mn 376,510 Direct
26 Aug, 2026 Mark Frichtl Chief Technology Officer Disposed M 100,000 $0.00 $0 100,713 Direct
18 Aug, 2026 Kenneth P. Gianella Chief Financial Officer Disposed S 17,927 $44.65 $800.42K 283,087 Direct
18 Aug, 2026 Kenneth P. Gianella Chief Financial Officer Disposed S 13,364 $45.52 $608.39K 269,723 Direct
18 Aug, 2026 Kenneth P. Gianella Chief Financial Officer Disposed S 8,201 $46.40 $380.56K 261,522 Direct
18 Aug, 2026 Kenneth P. Gianella Chief Financial Officer Disposed S 508 $47.09 $23.92K 261,014 Direct
05 Aug, 2026 Stephen A Skaggs Director Disposed S 1,386 $46.48 $64.42K 65,029 Direct
06 Aug, 2026 Stephen A Skaggs Director Disposed S 3,614 $45.18 $163.28K 61,415 Direct
04 Aug, 2026 Darien Spencer Chief Operating Officer Disposed S 30,000 $45.00 $1.35Mn 299,807 Direct
06 Jul, 2026 Susan Heystee Director Acquired A 660 $49.83 $32.89K 40,479 Direct
17 Jun, 2026 Phillip Eyler Director Acquired A 4,725 $0.00 $0 20,383 Direct
17 Jun, 2026 Christina Correia Director Acquired A 4,725 $0.00 $0 76,415 Direct
17 Jun, 2026 Ted L Iii Tewksbury Director Acquired A 4,725 $0.00 $0 126,694 Direct
17 Jun, 2026 Susan Heystee Director Acquired A 4,725 $0.00 $0 39,819 Direct
17 Jun, 2026 Stephen A Skaggs Director Acquired A 4,725 $0.00 $0 66,415 Direct
17 Jun, 2026 Ernest E Maddock Director Acquired A 4,725 $0.00 $0 88,902 Direct
22 Jun, 2026 Ted L Iii Tewksbury Director Disposed S 1,695 $47.00 $79.67K 124,999 Direct
12 Jun, 2026 Mark Frichtl Chief Technology Officer Disposed S 18,414 $38.82 $714.89K 276,510 Direct
12 Jun, 2026 Darien Spencer Chief Operating Officer Disposed S 12,559 $38.82 $487.58K 329,807 Direct