ADT Inc.
DE ˙ DB ˙ US00090Q1031
5,70 € ↓ -0,05 (-0,87%)
2026-06-03
DEL PRIS
SecurityDE:541 / ADT Inc.
InstitutionArnhold LLC
Latest Disclosed Ownership2,223,057 shares
Latest Disclosed Value $ 14,605,484
Arnhold LLC reports 41.46% increase in ownership of 541 / ADT Inc.

On May 11, 2026 - Arnhold LLC filed a 13F-HR form disclosing ownership of 2,223,057 shares of ADT Inc. (DE:541) valued at $12,560,272 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 1,571,521 shares of ADT Inc.. This represents a change in shares of 41.46% during the quarter. The current value of the position is $12,671,425 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)
2026-05-11 2026-03-31 13F ADT INC DEL COM 00090Q103 2,223,057 651,536 41.46 14,605 15.16 1.0726
2026-02-09 2025-12-31 13F ADT INC DEL COM 00090Q103 1,571,521 0 0.00 12,682 -7.34 0.9619
2025-11-07 2025-09-30 13F ADT INC DEL COM 00090Q103 1,571,521 192,768 13.98 13,688 17.20 1.1449
2025-07-29 2025-06-30 13F ADT INC DEL COM 00090Q103 1,378,753 0 0.00 11,678 4.05 1.0645
2025-05-14 2025-03-31 13F ADT INC DEL COM 00090Q103 1,378,753 0 0.00 11,223 17.80 1.1337
2025-02-14 2024-12-31 13F ADT INC DEL COM 00090Q103 1,378,753 -135,448 -8.95 9,527 -12.97 0.9391
2024-11-13 2024-09-30 13F ADT INC DEL COM 00090Q103 1,514,201 -3,042 -0.20 10,948 -5.06 1.0624
2024-08-01 2024-06-30 13F ADT INC DEL COM 00090Q103 1,517,243 -7,477 -0.49 11,531 12.54 1.2173
2024-05-07 2024-03-31 13F ADT INC DEL COM 00090Q103 1,524,720 -21,058 -1.36 10,246 -2.81 1.0842
2024-02-05 2023-12-31 13F ADT INC DEL COM 00090Q103 1,545,778 -18,916 -1.21 10,542 12.29 1.1780
2023-10-24 2023-09-30 13F ADT INC DEL COM 00090Q103 1,564,694 -1,800 -0.11 9,388 -0.60 1.1192
2023-08-08 2023-06-30 13F ADT INC DEL COM 00090Q103 1,566,494 -13,500 -0.85 9,446 -17.32 1.0706
2023-05-11 2023-03-31 13F ADT INC DEL COM 00090Q103 1,579,994 139,500 9.68 11,423 -12.57 1.2977
2023-02-07 2022-12-31 13F ADT INC DEL COM 00090Q103 1,440,494 -132,056 -8.40 13,065 10.93 1.5976
2022-10-27 2022-09-30 13F ADT INC DEL COM 00090Q103 1,572,550 0 0.00 11,778 21.79 1.5816
2022-07-26 2022-06-30 13F ADT INC DEL COM 00090Q103 1,572,550 0 0.00 9,671 -18.98 1.1539
2022-05-10 2022-03-31 13F ADT INC DEL COM 00090Q103 1,572,550 547,512 53.41 11,936 38.45 1.3416
2022-02-08 2021-12-31 13F ADT INC DEL COM 00090Q103 1,025,038 -172,740 -14.42 8,621 -11.03 0.9765
2021-10-19 2021-09-30 13F ADT INC DEL COM 00090Q103 1,197,778 949,918 383.25 9,690 262.38 1.1180
2021-08-04 2021-06-30 13F ADT INC DEL COM 00090Q103 247,860 247,860 2,674 0.3030
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.