Align Technology, Inc.
US ˙ NasdaqGS ˙ US0162551016

SecurityALGN / Align Technology, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership66,491 shares
Latest Disclosed Value $ 10,382,397
Sei Investments Co reports 13.10% decrease in ownership of ALGN / Align Technology, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 66,491 shares of Align Technology, Inc. (US:ALGN) valued at $10,382,570 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 76,513 shares of Align Technology, Inc.. This represents a change in shares of -13.10% during the quarter. The current value of the position is $10,752,260 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.

Upgrade to unlock premium data and export to Excel .

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 ALIGN TECHNOLOGY COM 016255101 66,491 -10,022 -13.10 10,382 8.35 0.0102
2025-11-13 2025-09-30 13F ALIGN TECHNOLOGY COM 016255101 76,513 4,700 6.54 9,582 -29.53 0.0103
2025-08-14 2025-06-30 13F ALIGN TECHNOLOGY COM 016255101 71,813 -18,288 -20.30 13,598 -5.01 0.0158
2025-05-14 2025-03-31 13F/A-1 ALIGN TECHNOLOGY COM 016255101 90,101 5,240 6.17 14,315 -19.11 0.0184
2025-05-13 2025-03-31 13F ALIGN TECHNOLOGY COM 016255101 83,761 -1,100 17,313 0.0188
2025-02-11 2024-12-31 13F ALIGN TECHNOLOGY COM 016255101 84,861 -3,677 -4.15 17,696 -21.41 0.0227
2024-11-12 2024-09-30 13F ALIGN TECHNOLOGY COM 016255101 88,538 -798 -0.89 22,515 4.40 0.0292
2024-08-13 2024-06-30 13F ALIGN TECHNOLOGY COM 016255101 89,336 -42,499 -32.24 21,567 -50.12 0.0306
2024-05-07 2024-03-31 13F ALIGN TECHNOLOGY COM 016255101 131,835 556 0.42 43,233 20.19 0.0633
2024-02-14 2023-12-31 13F ALIGN TECHNOLOGY COM 016255101 131,279 -770 -0.58 35,970 -10.79 0.0577
2023-11-14 2023-09-30 13F ALIGN TECHNOLOGY COM 016255101 132,049 -54,318 -29.15 40,319 -38.82 0.0724
2023-08-11 2023-06-30 13F ALIGN TECHNOLOGY COM 016255101 186,367 10,063 5.71 65,906 11.88 0.1150
2023-05-12 2023-03-31 13F ALIGN TECHNOLOGY COM 016255101 176,304 -3,842 -2.13 58,909 55.05 0.1094
2023-02-10 2022-12-31 13F ALIGN TECHNOLOGY COM 016255101 180,146 -1,121 -0.62 37,992 1.20 0.0844
2022-11-14 2022-09-30 13F ALIGN TECHNOLOGY COM 016255101 181,267 15,099 9.09 37,542 -4.38 0.0837
2022-08-15 2022-06-30 13F ALIGN TECHNOLOGY COM 016255101 166,168 30,153 22.17 39,261 -33.72 0.0848
2022-05-13 2022-03-31 13F ALIGN TECHNOLOGY COM 016255101 136,015 -58,769 -30.17 59,234 -53.85 0.1191
2022-02-14 2021-12-31 13F ALIGN TECHNOLOGY COM 016255101 194,784 25,951 15.37 128,343 14.07 0.2408
2021-11-12 2021-09-30 13F ALIGN TECHNOLOGY COM 016255101 168,833 13,351 8.59 112,508 18.17 0.2360
2021-08-06 2021-06-30 13F ALIGN TECHNOLOGY COM 016255101 155,482 7,985 5.41 95,207 19.16 0.2111
2021-05-12 2021-03-31 13F ALIGN TECHNOLOGY COM 016255101 147,497 2,631 1.82 79,899 3.17 0.2013
2021-02-08 2020-12-31 13F ALIGN TECHNOLOGY COM 016255101 144,866 40,686 39.05 77,446 127.03 0.2002
2020-12-04 2020-09-30 13F/A-1 ALIGN TECHNOLOGY COM 016255101 104,180 -13,246 -11.28 34,113 5.85 0.0988
2020-11-06 2020-09-30 13F ALIGN TECHNOLOGY COM 016255101 105,801 -11,625 34,644 83,415.0493
2020-08-17 2020-06-30 13F/A-1 ALIGN TECHNOLOGY COM 016255101 117,426 18,646 18.88 32,227 86.90 0.1000
2020-08-11 2020-06-30 13F ALIGN TECHNOLOGY COM 016255101 61,130 -37,650 17,050 46,249.0326
2020-05-14 2020-03-31 13F ALIGN TECHNOLOGY COM 016255101 98,780 28,092 39.74 17,243 -12.42 0.0633
2020-02-06 2019-12-31 13F ALIGN TECHNOLOGY COM 016255101 70,688 19,971 39.38 19,688 113.93 0.0587
2019-11-12 2019-09-30 13F ALIGN TECHNOLOGY COM 016255101 50,717 -37,714 -42.65 9,203 -62.11 0.0235
2019-08-14 2019-06-30 13F ALIGN TECHNOLOGY COM 016255101 88,431 -34,453 -28.04 24,291 -30.74 0.0793
2019-05-15 2019-03-31 13F ALIGN TECHNOLOGY COM 016255101 122,884 35,741 41.01 35,073 7.26 0.1178
2019-02-13 2018-12-31 13F ALIGN TECHNOLOGY COM 016255101 87,143 -1,003 -1.14 32,699 -5.17 0.1164
2018-11-08 2018-09-30 13F ALIGN TECHNOLOGY COM 016255101 88,146 -3,225 -3.53 34,482 10.30 0.1250
2018-08-03 2018-06-30 13F ALIGN TECHNOLOGY COM 016255101 91,371 79,984 702.42 31,262 993.46 0.1063
2018-05-11 2018-03-31 13F ALIGN TECHNOLOGY COM 016255101 11,387 -76,636 -87.06 2,859 -76.36 0.0110
2018-02-08 2017-12-31 13F ALIGN TECHNOLOGY COM 016255101 88,023 27,297 44.95 12,095 8.45 0.0420
2017-11-06 2017-09-30 13F ALIGN TECHNOLOGY COM 016255101 60,726 -18,258 -23.12 11,153 -5.94 0.0396
2017-07-31 2017-06-30 13F ALIGN TECHNOLOGY COM 016255101 78,984 -12,454 -13.62 11,857 13.04 0.0473
2017-05-05 2017-03-31 13F ALIGN TECHNOLOGY COM 016255101 91,438 22,489 32.62 10,489 71.05 0.0460
2017-02-02 2016-12-31 13F ALIGN TECHNOLOGY COM 016255101 68,949 3,455 5.28 6,132 -0.13 0.0297
2016-11-04 2016-09-30 13F ALIGN TECHNOLOGY COM 016255101 65,494 -6,005 -8.40 6,140 6.62 0.0312
2016-08-11 2016-06-30 13F ALIGN TECHNOLOGY COM 016255101 71,499 -1,852 -2.52 5,759 8.01 0.0345
2016-05-10 2016-03-31 13F/A-1 ALIGN TECHNOLOGY COM 016255101 73,351 16,025 27.95 5,332 41.28 0.0332
2016-02-03 2015-12-31 13F ALIGN TECHNOLOGY COM 016255101 57,326 -1,415 -2.41 3,774 13.20 0.0230
2015-11-02 2015-09-30 13F/A-1 ALIGN TECHNOLOGY COM 016255101 58,741 9,192 18.55 3,334 7.31 0.0306
2015-10-30 2015-09-30 13F ALIGN TECHNOLOGY COM 016255101 58,741 3,334
2015-08-07 2015-06-30 13F/A-1 ALIGN TECHNOLOGY COM 016255101 49,549 898 1.85 3,107 18.77 0.0281
2015-08-04 2015-06-30 13F ALIGN TECHNOLOGY COM 016255101 49,549 898 3,107 0.0281
2015-05-14 2015-03-31 13F/A-1 ALIGN TECHNOLOGY COM 016255101 48,651 12,943 36.25 2,616 31.06 0.0227
2015-05-01 2015-03-31 13F ALIGN TECHNOLOGY COM 016255101 48,651 2,616
2015-02-10 2014-12-31 13F ALIGN TECHNOLOGY COM 016255101 35,708 35,708 1,996 0.0176
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.