Onterris, Inc.
DE ˙ MUN ˙ US6151111019
14,10 € ↑0,70 (5,22%)
2026-06-03
DEL PRIS
SecurityDE:5MO / Onterris, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership728,450 shares
Latest Disclosed Value $ 15,945,771
State Street Corp reports 0.37% increase in ownership of 5MO / Onterris, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 728,450 shares of Onterris, Inc. (DE:5MO) valued at $13,694,860 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 725,742 shares of Onterris, Inc.. This represents a change in shares of 0.37% during the quarter. The current value of the position is $10,271,145 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 728,450 2,708 0.37 15,946 -11.51 0.0006
2026-02-13 2025-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 725,742 -264 -0.04 18,020 -9.61 0.0006
2025-11-14 2025-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 726,006 9,098 1.27 19,936 27.04 0.0007
2025-08-14 2025-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 716,908 18,656 2.67 15,693 57.61 0.0006
2025-05-15 2025-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 698,252 -14,878 -2.09 9,957 -24.73 0.0004
2025-02-14 2024-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 713,130 33,259 4.89 13,229 -26.02 0.0005
2024-11-14 2024-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 679,871 5,687 0.84 17,881 -40.48 0.0007
2024-08-14 2024-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 674,184 63,759 10.45 30,042 25.64 0.0013
2024-05-15 2024-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 610,425 9,725 1.62 23,910 23.89 0.0011
2024-02-14 2023-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 600,700 31,619 5.56 19,300 15.91 0.0009
2023-11-14 2023-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 569,081 4,233 0.75 16,651 -30.01 0.0009
2023-08-14 2023-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 564,848 25,122 4.65 23,791 23.58 0.0012
2023-05-15 2023-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 539,726 16,256 3.11 19,252 -17.15 0.0011
2023-05-15 2022-12-31 13F/A-99 MONTROSE ENVIRONMENTAL GROUP COM 615111101 523,470 2,393 0.46 23,237 32.52 0.0014
2023-05-15 2022-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 523,470 2,393 23,237 0.0014
2022-11-15 2022-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 521,077 16,697 3.31 17,534 2.97 0.0011
2022-08-15 2022-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 504,380 6,366 1.28 17,028 -35.40 0.0010
2022-05-16 2022-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 498,014 25,409 5.38 26,360 -20.90 0.0013
2022-02-14 2021-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 472,605 62,940 15.36 33,323 31.75 0.0016
2021-11-15 2021-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 409,665 32,547 8.63 25,293 24.99 0.0013
2021-08-16 2021-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 377,118 48,471 14.75 20,236 22.68 0.0011
2021-07-09 2021-03-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 328,647 137,254 71.71 16,495 178.35 0.0009
2021-05-17 2021-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 328,647 137,254 16,495 0.0009
2021-02-16 2020-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 191,393 57,965 43.44 5,926 86.47 0.0004
2020-11-10 2020-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 133,428 133,428 3,178 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.