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ONTNYSE
Onterris, Inc.
Services-Management Consulting Services · DE · CIK 1643615
Onterris provides environmental solutions using science, engineering, and data for risk management, compliance, and protection
$618M
Market cap
$20.41
Last close
+1.9%
1D
+25.1%
5D
746K
Volume
Price · last 39 sessions-4.3%
May 4L $14.50 · H $22.07Jun 29
108
Total filings
May 11, 2026
Last filing
12/31
Fiscal year end
8-KShareholder VoteMay 11, 202610-Q10-QMay 7, 20268-KResults of Operations · Reg FD DisclosureMay 6, 20268-KBylaw Amendment · Reg FD DisclosureApr 21, 2026DEFA14ADEFA14AMar 24, 2026DEF 14ADEF 14AMar 24, 202610-K10-KFeb 26, 20268-KResults of Operations · Reg FD DisclosureFeb 25, 20268-KExecutive ChangeJan 20, 202610-Q10-QNov 5, 20258-KResults of Operations · Reg FD DisclosureNov 4, 202510-Q10-QAug 7, 20258-KResults of Operations · Reg FD DisclosureAug 6, 20258-KCompany UpdateJul 7, 20258-KBylaw Amendment · Shareholder VoteMay 9, 202510-Q10-QMay 8, 20258-KResults of Operations · Reg FD DisclosureMay 7, 2025DEFA14ADEFA14AMar 24, 2025DEF 14ADEF 14AMar 24, 202510-K10-KMar 3, 20258-KResults of Operations · Reg FD DisclosureFeb 26, 20258-KExecutive ChangeFeb 20, 20258-KDebt AccelerationJan 17, 20258-KExecutive ChangeJan 6, 2025SC 13GSC 13GDec 17, 2024SC 13GMONTROSE ENVIRONMENTAL GROUP, INC.Nov 14, 202410-Q10-QNov 7, 20248-KExecutive Change · Results of OperationsNov 6, 202410-Q10-QAug 7, 20248-KResults of Operations · Reg FD DisclosureAug 6, 20248-KBylaw AmendmentMay 14, 20248-KShareholder VoteMay 8, 202410-Q10-QMay 8, 20248-KResults of Operations · Reg FD DisclosureMay 7, 2024DEFA14ADEFA14AApr 22, 20248-KCompany UpdateApr 19, 2024424B5424B5Apr 19, 2024424B5424B5Apr 16, 20248-KReg FD DisclosureApr 2, 2024DEFA14ADEFA14AMar 25, 2024DEF 14ADEF 14AMar 25, 202410-K10-KFeb 29, 20248-KResults of Operations · Reg FD DisclosureFeb 29, 20248-KMaterial Agreement · New Debt / ObligationFeb 20, 2024SC 13GSCHEDULE 13GFeb 13, 202410-Q10-QNov 8, 20238-KResults of Operations · Reg FD DisclosureNov 7, 202310-Q10-QAug 9, 20238-KResults of Operations · Reg FD DisclosureAug 8, 20238-KReg FD DisclosureJun 6, 20238-KShareholder VoteMay 11, 202310-Q10-QMay 10, 20238-KResults of Operations · Reg FD DisclosureMay 9, 2023DEFA14ADEFA14AMar 28, 2023DEF 14ADEF 14AMar 28, 202310-K10-KMar 1, 20238-KResults of Operations · Reg FD DisclosureFeb 28, 202310-Q10-QNov 9, 20228-KResults of Operations · Reg FD DisclosureNov 8, 202210-Q10-QAug 9, 20228-KResults of Operations · Reg FD DisclosureAug 8, 20228-KCompany UpdateJun 14, 20228-KExecutive ChangeJun 8, 20228-KShareholder VoteMay 11, 202210-Q10-QMay 10, 20228-KResults of Operations · Reg FD DisclosureMay 9, 2022DEFA14ADEFA14AMar 29, 2022DEF 14ADEF 14AMar 29, 20228-KReg FD DisclosureMar 28, 202210-K10-KMar 1, 20228-KResults of Operations · Reg FD DisclosureFeb 28, 2022SC 13GINITIAL FILING DECEMBER 2021Feb 14, 2022SC 13GSEC SCHEDULE 13GFeb 11, 2022SC 13GSC 13GFeb 4, 20228-KExecutive ChangeDec 21, 202110-Q10-QNov 10, 20218-KResults of Operations · Reg FD DisclosureNov 9, 20218-KExecutive ChangeOct 25, 2021SC 13GMONTROSE ENVIRONMENTAL GROUP, INC.Oct 8, 20218-KCompany UpdateSep 30, 2021
Insider Activity
In the 90 days to Mar 13, 2026: 4 sold $5.8M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 13, 2026 | Manthripragada VijayPresident & CEO | Sell | 46,121 | $25.41 | $1.2M |
| Mar 9, 2026 | Revuelta JoseChief Strategy Officer | Sell | 7,858 | $27.00 | $212K |
| Mar 4, 2026 | Revuelta JoseChief Strategy Officer | Sell | 42,668 | $27.56 | $1.2M |
| Mar 3, 2026 | Revuelta JoseChief Strategy Officer | Sell | 60,000 | $28.00 | $1.7M |
| Mar 3, 2026 | Afsari NasymGeneral Counsel and Secretary | Sell | 43,348 | $28.37 | $1.2M |
| Mar 2, 2026 | Presby J ThomasDirector | Sell | 9,541 | $28.82 | $275K |
| Mar 2, 2026 | Presby J ThomasDirector | Sell | 459 | $29.89 | $14K |
| Mar 2, 2026 | Afsari NasymGeneral Counsel and Secretary | Sell | 200 | $30.00 | $6K |
| Nov 11, 2025 | Manthripragada VijayPresident & CEO | Sell | 44,984 | $24.07 | $1.1M |
| Nov 10, 2025 | Manthripragada VijayPresident & CEO | Sell | 39,799 | $24.63 | $980K |
| Nov 10, 2025 | Manthripragada VijayPresident & CEO | Sell | 5,072 | $25.62 | $130K |
| Nov 10, 2025 | Manthripragada VijayPresident & CEO | Sell | 112 | $26.17 | $3K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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