Natera, Inc.
US ˙ NasdaqGS ˙ US6323071042

SecurityNTRA / Natera, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership176,252 shares
Latest Disclosed Value $ 40,379,662
Sei Investments Co reports 7.35% decrease in ownership of NTRA / Natera, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 176,252 shares of Natera, Inc. (US:NTRA) valued at $40,377,571 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 190,231 shares of Natera, Inc.. This represents a change in shares of -7.35% during the quarter. The current value of the position is $37,338,986 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)
2026-02-13 2025-12-31 13F NATERA COM 632307104 176,252 -13,979 -7.35 40,380 31.87 0.0399
2025-11-13 2025-09-30 13F NATERA COM 632307104 190,231 -11,773 -5.83 30,621 -10.27 0.0329
2025-08-14 2025-06-30 13F NATERA COM 632307104 202,004 -39,400 -16.32 34,127 -0.03 0.0396
2025-05-14 2025-03-31 13F/A-1 NATERA COM 632307104 241,404 -51,605 -17.61 34,137 -26.40 0.0439
2025-05-13 2025-03-31 13F NATERA COM 632307104 287,358 -5,651 43,631 0.0475
2025-02-11 2024-12-31 13F NATERA COM 632307104 293,009 -10,962 -3.61 46,383 20.19 0.0596
2024-11-12 2024-09-30 13F NATERA COM 632307104 303,971 -50,885 -14.34 38,589 0.42 0.0501
2024-08-13 2024-06-30 13F NATERA COM 632307104 354,856 -14,086 -3.82 38,427 13.88 0.0544
2024-05-07 2024-03-31 13F NATERA COM 632307104 368,942 16,712 4.74 33,744 52.94 0.0494
2024-02-14 2023-12-31 13F NATERA COM 632307104 352,230 -21,774 -5.82 22,064 33.31 0.0354
2023-11-14 2023-09-30 13F NATERA COM 632307104 374,004 93,556 33.36 16,550 21.28 0.0297
2023-08-11 2023-06-30 13F NATERA COM 632307104 280,448 -11,178 -3.83 13,647 -15.71 0.0238
2023-05-12 2023-03-31 13F NATERA COM 632307104 291,626 144,843 98.68 16,191 174.64 0.0301
2023-02-10 2022-12-31 13F NATERA COM 632307104 146,783 -22,907 -13.50 5,896 -20.72 0.0131
2022-11-14 2022-09-30 13F NATERA COM 632307104 169,690 -27,639 -14.01 7,436 7.27 0.0166
2022-08-15 2022-06-30 13F NATERA COM 632307104 197,329 -39,189 -16.57 6,932 -27.37 0.0150
2022-05-13 2022-03-31 13F NATERA COM 632307104 236,518 64,878 37.80 9,544 -40.38 0.0192
2022-02-14 2021-12-31 13F NATERA COM 632307104 171,640 27,054 18.71 16,007 -0.38 0.0300
2021-11-12 2021-09-30 13F NATERA COM 632307104 144,586 23,185 19.10 16,068 16.49 0.0337
2021-08-06 2021-06-30 13F NATERA COM 632307104 121,401 61,222 101.73 13,793 126.71 0.0306
2021-05-12 2021-03-31 13F NATERA COM 632307104 60,179 -20,921 -25.80 6,084 -24.63 0.0153
2021-02-08 2020-12-31 13F NATERA COM 632307104 81,100 -7,561 -8.53 8,072 26.09 0.0209
2020-12-04 2020-09-30 13F/A-1 NATERA COM 632307104 88,661 -607 -0.68 6,402 43.83 0.0185
2020-11-06 2020-09-30 13F NATERA COM 632307104 94,243 4,975 6,805 16,384.9270
2020-08-17 2020-06-30 13F/A-1 NATERA COM 632307104 89,268 38,668 76.42 4,451 194.57 0.0138
2020-08-11 2020-06-30 13F NATERA COM 632307104 31,199 -19,401 1,366 3,705.3477
2020-05-14 2020-03-31 13F NATERA COM 632307104 50,600 28,187 125.76 1,511 100.13 0.0055
2020-02-06 2019-12-31 13F NATERA COM 632307104 22,413 -6,751 -23.15 755 -21.11 0.0023
2019-11-12 2019-09-30 13F NATERA COM 632307104 29,164 29,164 957 0.0024
2019-08-14 2019-06-30 13F NATERA COM 632307104 0 -10,039 -100.00 0 -100.00
2019-05-15 2019-03-31 13F NATERA COM 632307104 10,039 9,883 6,335.26 207 5,075.00 0.0007
2019-02-13 2018-12-31 13F NATERA COM 632307104 156 0 0.00 4 0.00 0.0000
2018-11-08 2018-09-30 13F NATERA COM 632307104 156 -49,137 -99.68 4 -99.57 0.0000
2018-08-03 2018-06-30 13F NATERA COM 632307104 49,293 49,293 928 0.0032
2017-02-02 2016-12-31 13F NATERA COM 632307104 0 -15,593 -100.00 0 -100.00
2016-11-04 2016-09-30 13F NATERA COM 632307104 15,593 15,593 173 0.0009
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.