OnterrisONT

13F holders, Q1 2025 (March 31)
165holders +1
22new positions
21sold out
5famous investors
$14.26avg. 13F price*

At the end of Q1 2025, 165 institutions reported holding Onterris Inc. (ONT) in their 13F filings, up 1 from Q4 2024. 22 opened new positions and 21 sold out. The largest holders were BlackRock, Inc. ($39.8M), Baron Capital (BAMCO) ($38.4M) and UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($33.9M). 5 famous investors held it, including Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).

Company
Onterris Inc.
Filed as
MONTROSE ENVIRONMENTAL GROUP (Q1 2025)
CUSIP
615111101
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 168Q1 2024Q2 2024: 173Q2 2024Q3 2024: 180Q3 2024Q4 2024: 164Q4 2024Q1 2025: 165Q1 2025Q2 2025: 162Q2 2025Q3 2025: 187Q3 2025Q4 2025: 186Q4 2025Q1 2026: 171Q1 2026Q2 2026: 156Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions22$4.3M
Exits21$34.6M

All 13F filers, Q4 2024 → Q1 2025: 4,028,601 shares bought and 3,569,680 shares sold, net +458,921 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 165 holders

BlackRock, Inc. 0.00% Reduce -0.9% 2,793,365 $39.8M
Baron Capital (BAMCO) 0.11% Add +17.6% 2,695,682 $38.4M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% Add +4.3% 2,378,212 $33.9M
Macquarie Group Ltd. 0.03% Add +25.5% 1,916,518 $27.3M
William Blair Investment Management, LLC 0.08% Add +29.6% 1,903,388 $27.1M
Bank of America Corp. 0.00% Reduce -0.6% 1,808,055 $25.8M
Vanguard Group Inc. 0.00% Reduce -1.0% 1,783,881 $25.4M
Millennium Management 0.02% Add +4.4% 1,504,541 $21.5M
Fred Alger Management, LLC 0.08% Reduce -2.3% 990,929 $14.1M
Royce & Associates LP 0.13% Add +167.5% 852,849 $12.2M
Truist Financial Corp. 0.02% Reduce -0.2% 817,349 $11.7M
Legal & General Group Plc 0.00% Add +2536.8% 800,694 $11.4M
Granite Investment Partners, LLC 0.56% Reduce -8.9% 771,048 $11.0M
Geode Capital Management, LLC 0.00% Add +2.7% 737,711 $10.5M
Dimensional Fund Advisors LP 0.00% Add +5.9% 717,344 $10.2M
State Street Corp. 0.00% Reduce -2.1% 698,252 $10.0M
Janus Henderson Group PLC 0.01% Reduce -0.1% 680,687 $9.8M
Northern Trust Corp. 0.00% Add +3.1% 601,696 $8.6M
Summit Creek Advisors LLC 1.22% Add +1.2% 584,514 $8.3M
UBS Group AG 0.00% Reduce -6.9% 516,616 $7.4M
Nuveen, LLC 0.00% — 482,923 $6.9M
DekaBank Deutsche Girozentrale 0.01% Reduce -6.9% 470,800 $6.7M
Stephens Investment Management Group LLC 0.09% Reduce -3.9% 454,273 $6.5M
Cubist Systematic Strategies, LLC 0.06% Add +26.1% 342,964 $4.9M
Blair William & Co. 0.01% Reduce -48.3% 334,221 $4.8M
Goldman Sachs Group Inc. 0.00% Add +39.5% 326,969 $4.7M
ArrowMark Colorado Holdings LLC 0.07% Reduce -5.6% 322,100 $4.6M
Morgan Stanley 0.00% Reduce -31.1% 295,174 $4.2M
Charles Schwab Investment Management Inc. 0.00% Reduce -2.4% 259,229 $3.7M
Fisher Asset Management 0.00% Reduce -10.7% 250,401 $3.6M
Peregrine Capital Management LLC 0.11% Add +3.5% 239,434 $3.4M
Silvercrest Asset Management Group LLC 0.02% Reduce -0.6% 220,648 $3.1M
Wellington Management Group LLP 0.00% Reduce -36.6% 209,666 $3.0M
Avalon Trust Co 0.22% Reduce -7.2% 194,797 $2.8M
Segall Bryant & Hamill, LLC 0.04% Reduce -2.8% 173,636 $2.5M
Trexquant Investment LP 0.03% Add +53.6% 171,374 $2.4M
Bank of New York Mellon Corp 0.00% Reduce -64.6% 170,592 $2.4M
Russell Investments Group, Ltd. 0.00% Add +201.9% 165,475 $2.4M
Balyasny Asset Management L.P. 0.01% Add +18.2% 161,819 $2.3M
ExodusPoint Capital Management, LP 0.03% Add +275.2% 153,757 $2.2M
FMR LLC 0.00% Add +1087.1% 151,802 $2.2M
Invesco Ltd. 0.00% Reduce -3.1% 134,484 $1.9M
Rockefeller Capital Management L.P. 0.00% Reduce -5.2% 121,964 $1.7M
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Reduce -57.3% 119,048 $1.7M
Global Alpha Capital Management Ltd. 0.12% Add +50.9% 111,506 $1.6M
Marshall Wace, LLP 0.00% Add +163.0% 111,217 $1.6M
Essex Investment Management Co. LLC 0.32% Reduce -0.0% 109,189 $1.6M
Citadel Advisors 0.00% Reduce -18.7% 103,093 $1.5M
OP Asset Management Ltd 0.02% — 102,310 $1.5M
Van Eck Associates Corp. 0.00% Add +12.6% 101,140 $1.4M
Envestnet Asset Management Inc. 0.00% Reduce -6.2% 85,290 $1.2M
Conestoga Capital Advisors, LLC 0.02% Add +33.6% 70,225 $1.0M
Cladis Investment Advisory, LLC 0.70% Add +25.1% 67,750 $966K
Rice Hall James & Associates, LLC 0.06% Reduce -0.5% 65,954 $941K
Candriam S.C.A. 0.01% Reduce -36.5% 65,000 $927K
Squarepoint Ops LLC 0.00% Reduce -61.9% 64,962 $926K
New York State Common Retirement Fund 0.00% No change 64,009 $913K
Lane Generational LLC 1.00% Add +27.2% 61,779 $881K
Sei Investments Co. 0.00% Add +1.3% 60,012 $856K
Swiss National Bank 0.00% Reduce -5.4% 59,800 $853K
Verition Fund Management LLC 0.00% New 54,734 $781K
Dynamic Technology Lab Private Ltd 0.10% New 48,389 $690K
Point72 Asset Management 0.00% Add +32.6% 47,721 $680K
Holcombe Financial, Inc. 0.56% Add +45.3% 47,651 $680K
Creative Planning 0.00% Add +1.1% 47,590 $679K
Caption Management, LLC 0.03% Add +37.5% 47,430 $676K
Atom Investors LP 0.08% Reduce -49.0% 46,591 $664K
Rhumbline Advisers 0.00% Add +4.3% 45,101 $643K
Janney Montgomery Scott LLC 0.00% Add +156.8% 44,608 $636K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% New 44,000 $627K
Gallo Partners, LP 0.40% Reduce -33.9% 42,378 $604K
Barclays PLC 0.00% Reduce -28.4% 40,984 $584K
Susquehanna International Group, LLP 0.00% Add +33.6% 40,626 $579K
Graham Capital Management, L.P. 0.03% Add +8.4% 40,474 $577K
Alliancebernstein L.P. 0.00% No change 36,570 $521K
Connor, Clark & Lunn Investment Management Ltd. 0.00% Reduce -18.4% 36,468 $520K
Stifel Financial Corp. 0.00% Reduce -7.1% 33,468 $477K
Legato Capital Management LLC 0.06% Reduce -1.2% 32,248 $460K
Caprock Group, LLC 0.01% No change 32,000 $456K
California State Teachers Retirement System 0.00% No change 30,332 $433K
JPMorgan Chase & Co. 0.00% Add +8.3% 29,863 $426K
Deutsche Bank AG 0.00% Reduce -9.0% 28,976 $413K
Versor Investments LP 0.07% New 28,500 $406K
Horrell Capital Management, Inc. 0.16% Add +0.7% 26,830 $383K
Citigroup Inc. 0.00% Reduce -9.9% 24,895 $355K
Federated Hermes, Inc. 0.00% Add +55.0% 24,800 $354K
Intech Investment Management LLC 0.00% Add +58.3% 24,430 $348K
CANADA LIFE ASSURANCE Co 0.00% Add +41.5% 22,145 $316K
T. Rowe Price Associates Inc. 0.00% Add +9.7% 20,978 $300K
MetLife Investment Management, LLC 0.00% Reduce -1.9% 20,673 $295K
Managed Asset Portfolios, LLC 0.04% Add +36.9% 19,953 $285K
Jump Financial, LLC 0.00% New 19,741 $282K
Simplex Trading, LLC 0.01% Add +445.2% 19,703 $280K
OneDigital Investment Advisors LLC 0.00% No change 19,188 $274K
Oppenheimer Asset Management Inc. 0.00% Add +23.3% 19,023 $271K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +4.3% 18,876 $269K
Dark Forest Capital Management LP 0.01% New 18,758 $267K
Natixis Advisors, LLC 0.00% New 17,846 $254K
Procyon Advisors, LLC 0.02% Reduce -17.5% 17,697 $252K
Comerica Bank 0.00% Add +0.8% 17,405 $248K
Wells Fargo & Company 0.00% Add +9.7% 16,967 $242K
Corebridge Financial, Inc. 0.00% Reduce -1.5% 15,575 $222K
Quantbot Technologies LP 0.01% Reduce -24.9% 15,532 $221K
Group One Trading LLC 0.01% Add +905.8% 15,530 $221K
Pathstone Holdings, LLC 0.00% Add +31.7% 15,101 $215K
Sherbrooke Park Advisers LLC 0.09% New 13,964 $199K
Nebula Research & Development LLC 0.02% Reduce -34.8% 13,929 $199K
B. Metzler seel. Sohn & Co. AG 0.00% Add +19.1% 13,463 $192K
Centiva Capital, LP 0.01% New 13,450 $192K
Emerald Advisers, LLC 0.01% No change 12,371 $176K
Synovus Financial Corp. 0.00% New 12,233 $174K
Yarbrough Capital, LLC 0.01% No change 12,222 $174K
Manufacturers Life Insurance Company, The 0.00% Reduce -30.6% 11,438 $163K
BNP Paribas Financial Markets 0.00% Reduce -30.8% 11,379 $162K
State Board of Administration of Florida Retirement System 0.00% No change 10,415 $149K
Henshaw Capital LLC 0.01% New 10,373 $148K
Radnor Capital Management, LLC 0.02% New 10,325 $147K
Kozak & Associates, Inc. 0.04% No change 10,000 $142K
KLP Kapitalforvaltning As 0.00% No change 7,000 $100K
Police & Firemen's Retirement System of New Jersey 0.00% No change 6,392 $91K
PNC Financial Services Group, Inc. 0.00% Reduce -11.7% 5,622 $80K
Brooklyn Investment Group 0.02% New 5,542 $79K
Exchange Traded Concepts, LLC 0.00% Reduce -7.7% 5,419 $77K
Point72 (DIFC) Ltd 0.01% Add +155.6% 4,637 $66K
Avanza Fonder AB 0.00% Reduce -17.0% 4,700 $64K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 4,320 $62K
AlphaQuest LLC 0.01% Add +569.3% 4,096 $58K
Osaic Holdings, Inc. 0.00% Add +440.5% 3,881 $55K
Amundi 0.00% Reduce -0.9% 3,921 $48K
Ameritas Investment Partners, Inc. 0.00% No change 3,115 $44K
KBC Group NV 0.00% No change 2,888 $41K
Royal Bank of Canada 0.00% Add +60.7% 2,424 $35K
Wilmington Savings Fund Society, FSB 0.00% Reduce -79.3% 2,220 $32K
Tower Research Capital LLC (TRC) 0.00% Add +131.9% 1,577 $22K
Bessemer Group Inc. 0.00% Add +1.5% 1,421 $20K
Farther Finance Advisors, LLC 0.00% Add +138900.0% 1,390 $19K
Amalgamated Bank 0.00% Add +13.9% 1,097 $16K
Leonteq Securities AG 0.00% No change 936 $13K
Signaturefd, LLC 0.00% Add +50.5% 608 $9K
Caitong International Asset Management Co., Ltd 0.01% Add +861.2% 471 $7K
US Bancorp \de 0.00% Add +27.6% 425 $6K
Cwm, LLC 0.00% Add +257.5% 404 $6K
Nisa Investment Advisors, LLC 0.00% Reduce -4.5% 340 $5K
Canada Pension Plan Investment Board 0.00% New 300 $4K
Larson Financial Group LLC 0.00% New 121 $2K
Rothschild Investment LLC 0.00% Add +187.5% 115 $2K
GAMMA Investing LLC 0.00% Add +73.3% 104 $1K
Atticus Wealth Management, LLC 0.00% No change 100 $1K
Parallel Advisors, LLC 0.00% New 77 $1K
CIBC Private Wealth Group LLC 0.00% Reduce -85.2% 98 $1K
Steward Partners Investment Advisory, LLC 0.00% No change 73 $1K
Jones Financial Companies LLLP 0.00% Reduce -60.0% 38 $548
Coldstream Capital Management Inc. 0.00% New 35 $499
Ameriflex Group, Inc. 0.00% No change 34 $485
Sterling Capital Management LLC 0.00% No change 33 $471
Parkside Financial Bank & Trust 0.00% New 30 $428
Hexagon Capital Partners LLC 0.00% New 30 $428
Highline Wealth Partners LLC 0.00% New 23 $328
Allworth Financial LP 0.00% New 19 $289
EverSource Wealth Advisors, LLC 0.00% Add +850.0% 19 $271
Quadrant Capital Group LLC 0.00% Reduce -67.9% 17 $243
CoreCap Advisors, LLC 0.00% Reduce -77.1% 8 $114
True Wealth Design, LLC 0.00% New 3 $43
SBI Securities Co., Ltd. 0.00% No change 1 $14
Covestor Ltd 0.00% No change 2 $0

"% of holder's portfolio" is ONT's weight in each manager's 13F, not the share of Onterris Inc. the manager owns.