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CIK 0001643615 · Large accelerated filer

Onterris, Inc.

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Ticker
ONT
Exchange
NYSE
Industry
Services-Management Consulting Services
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
464195044
Phone
(949) 988-3500
Business address
4 PARK PLAZA, SUITE 790, IRVINE, CA, 92614
Former names
Montrose Environmental Group, Inc.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2026-03-13 Manthripragada Vijay President & CEO Sale 10b5-1 −46,121 $25.41 $1.2M 236,788
2026-03-09 Revuelta Jose Chief Strategy Officer Sale −7,858 $27.00 $212K 269,282
2026-03-04 Revuelta Jose Chief Strategy Officer Sale −42,668 $27.56 $1.2M 269,282
2026-03-03 Revuelta Jose Chief Strategy Officer Sale −60,000 $28.00 $1.7M 269,282
2026-03-03 Afsari Nasym General Counsel and Secretary Sale 10b5-1 −43,348 $28.37 $1.2M 204,878
2026-03-02 PRESBY J THOMAS Director Sale −9,541 $28.82 $275K 63,073
2026-03-02 PRESBY J THOMAS Director Sale −459 $29.89 $14K 62,614
2026-03-02 Afsari Nasym General Counsel and Secretary Sale 10b5-1 −200 $30.00 $6K 204,878
2025-11-11 Manthripragada Vijay President & CEO Sale 10b5-1 −44,984 $24.07 $1.1M 316,637
2025-11-10 Manthripragada Vijay President & CEO Sale 10b5-1 −39,799 $24.63 $980K 321,821
2025-11-10 Manthripragada Vijay President & CEO Sale 10b5-1 −5,072 $25.62 $130K 316,749
2025-11-10 Manthripragada Vijay President & CEO Sale 10b5-1 −112 $26.17 $3K 316,637
2024-05-06 Manthripragada Vijay President & CEO Sale 10b5-1 −12,400 $46.51 $577K 316,737
2024-05-06 Manthripragada Vijay President & CEO Sale 10b5-1 −100 $47.01 $5K 316,637
2023-02-17 PERLMAN RICHARD E Director Sale −13,622 $54.17 $738K 679,295
2023-02-16 PERLMAN RICHARD E Director Sale −400 $54.15 $22K 692,917
2023-02-03 PERLMAN RICHARD E Director Sale −600 $54.04 $32K 693,317
2023-02-02 PERLMAN RICHARD E Director Sale −51,981 $54.30 $2.8M 693,917
2023-02-01 PERLMAN RICHARD E Director Sale −21,540 $54.18 $1.2M 745,898
2023-01-31 PERLMAN RICHARD E Director Sale −18,241 $53.08 $968K 792,268

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