Onterris, Inc.
DE ˙ MUN ˙ US6151111019
14,40 € ↑0,30 (2,13%)
2026-06-04
CENA AKCJI
SecurityDE:5MO / Onterris, Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership387,994 shares
Latest Disclosed Value $ 8,493,189
Fred Alger Management, Llc reports 63.69% decrease in ownership of 5MO / Onterris, Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 387,994 shares of Onterris, Inc. (DE:5MO) valued at $7,294,287 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,068,555 shares of Onterris, Inc.. This represents a change in shares of -63.69% during the quarter. The current value of the position is $5,587,114 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 Equity 615111101 387,994 -680,561 -63.69 8,493 -67.99 0.0373
2026-02-17 2025-12-31 13F Montrose Environmental Group Equity 615111101 1,068,555 -81,141 -7.06 26,532 -15.96 0.1041
2025-11-14 2025-09-30 13F Montrose Environmental Group Equity 615111101 1,149,696 -1,495 -0.13 31,571 25.28 0.1229
2025-08-14 2025-06-30 13F Montrose Environmental Group Equity 615111101 1,151,191 160,262 16.17 25,200 78.34 0.1128
2025-05-16 2025-03-31 13F Montrose Environmental Group Equity 615111101 990,929 -22,967 -2.27 14,131 -24.87 0.0805
2025-02-14 2024-12-31 13F Montrose Environmental Group Equity 615111101 1,013,896 -852,506 -45.68 18,808 -61.69 0.0896
2024-11-14 2024-09-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,866,402 470,706 33.73 49,086 -21.07 0.2379
2024-08-14 2024-06-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,395,696 208,785 17.59 62,192 33.77 0.3023
2024-05-15 2024-03-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,186,911 232,553 24.37 46,491 51.62 0.2305
2024-02-14 2023-12-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 954,358 -133,589 -12.28 30,664 -3.68 0.1654
2023-11-14 2023-09-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,087,947 -777,390 -41.68 31,833 -59.48 0.1688
2023-11-14 2023-09-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,087,947 31,833
2023-08-14 2023-06-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,865,337 -559,792 -23.08 78,568 -9.18 0.4013
2023-05-16 2023-03-31 13F/A-1 MONTROSE ENVIRONMENT GROUP Common 615111101 2,425,129 -423,083 -14.85 86,504 -31.58 0.4626
2023-05-15 2023-03-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 2,425,129 -423,083 86,504 0.4290
2023-02-14 2022-12-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 2,848,212 -368,497 -11.46 126,432 16.80 0.6853
2022-11-15 2022-09-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 3,216,709 -157,394 -4.66 108,242 -4.98 0.5485
2022-08-15 2022-06-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 3,374,103 200,080 6.30 113,909 -32.20 0.5319
2022-05-16 2022-03-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 3,174,023 277,678 9.59 168,001 -17.74 0.5367
2022-02-14 2021-12-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 2,896,345 -48,587 -1.65 204,221 12.32 0.5116
2021-11-15 2021-09-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 2,944,932 923,534 45.69 181,820 67.63 0.4335
2021-08-16 2021-06-30 13F MONTROSE ENVIRONMENT GROUP Common 615111101 2,021,398 745,434 58.42 108,468 69.37 0.2560
2021-05-17 2021-03-31 13F MONTROSE ENVIRONMENT GROUP Common 615111101 1,275,964 1,275,964 64,041 0.1676
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.