Keysight Technologies, Inc.
MX ˙ BMV ˙ US49338L1035
SecurityMX:KEYS / Keysight Technologies, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,217,726 shares
Latest Disclosed Value $ 343,776,184
Dimensional Fund Advisors Lp reports 14.63% decrease in ownership of KEYS / Keysight Technologies, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,217,726 shares of Keysight Technologies, Inc. (MX:KEYS) valued at $343,776,184 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,426,356 shares of Keysight Technologies, Inc.. This represents a change in shares of -14.63% during the quarter.

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)
2026-05-07 2026-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,217,726 -208,630 -14.63 343,776 18.61 0.0154
2026-02-12 2025-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,426,356 16,736 1.19 289,843 17.56 0.0608
2025-11-12 2025-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,409,620 -15,219 -1.07 246,551 5.59 0.0529
2025-08-12 2025-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,424,839 11,228 0.79 233,489 10.29 0.0541
2025-05-13 2025-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,413,611 20,518 1.47 211,703 -5.40 0.0526
2025-02-13 2024-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,393,093 203,746 17.13 223,786 18.39 0.0537
2024-11-07 2024-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,189,347 67,038 5.97 189,021 23.16 0.0458
2024-08-09 2024-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,122,309 141,062 14.38 153,470 0.01 0.0401
2024-05-10 2024-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 981,247 21,292 2.22 153,447 0.47 0.0415
2024-02-07 2023-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 959,955 74,083 8.36 152,723 30.29 0.0446
2023-11-09 2023-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 885,872 28,049 3.27 117,213 -18.40 0.0384
2023-08-09 2023-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 857,823 13,714 1.62 143,639 5.39 0.0458
2023-05-12 2023-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 844,109 -103,963 -10.97 136,299 84,034.57 0.0459
2023-02-09 2022-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 948,072 -38,485 -3.90 162 -99.90 0.0479
2022-11-10 2022-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 986,557 -20,352 -2.02 155,251 11.85 0.0596
2022-08-12 2022-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,006,909 -22,155 -2.15 138,800 -14.62 0.0498
2022-05-13 2022-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,029,064 8,879 0.87 162,569 -22.84 0.0501
2022-02-09 2021-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,020,185 6,172 0.61 210,678 26.46 0.0637
2021-11-12 2021-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,014,013 -20,961 -2.03 166,601 4.25 0.0537
2021-08-12 2021-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,034,974 -21,932 -2.08 159,814 5.45 0.0506
2021-05-14 2021-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,056,906 176 0.02 151,550 8.58 0.0501
2021-03-08 2020-12-31 13F/A-2 KEYSIGHT TECHNOLOGIES COM 49338L103 1,056,730 21,572 2.08 139,579 36.50 0.0504
2021-02-11 2020-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,056,730 21,572 139,579 50,408.5158
2020-11-12 2020-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,035,158 50,633 5.14 102,257 3.07 0.0434
2020-08-13 2020-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 984,525 -1,948 -0.20 99,209 20.17 0.0436
2020-05-14 2020-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 986,473 -8,989 -0.90 82,554 -19.19 0.0430
2020-02-14 2019-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 995,462 -5,905 -0.59 102,163 4.91 0.0372
2019-11-12 2019-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,001,367 -50,740 -4.82 97,380 3.07 0.0378
2019-08-13 2019-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,052,107 -19,930 -1.86 94,477 1.07 0.0367
2019-08-12 2019-03-31 13F/A-2 KEYSIGHT TECHNOLOGIES COM 49338L103 1,072,037 -2,141 -0.20 93,479 40.21 0.0372
2019-05-10 2019-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,072,037 -2,141 93,479
2019-02-26 2018-12-31 13F/A-1 KEYSIGHT TECHNOLOGIES COM 49338L103 1,074,178 70,562 7.03 66,673 0.24 0.0302
2019-02-13 2018-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,074,178 70,562 66,673
2018-11-13 2018-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,003,616 -10,903 -1.07 66,515 11.07 0.0253
2018-08-10 2018-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,014,519 -12,388 -1.21 59,888 11.32 0.0239
2018-05-11 2018-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,026,907 -67,745 -6.19 53,800 18.13 0.0224
2018-02-12 2017-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,094,652 -50,422 -4.40 45,543 -4.53 0.0189
2017-11-13 2017-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,145,074 -25,540 -2.18 47,702 4.68 0.0208
2017-08-11 2017-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,170,614 -36,880 -3.05 45,571 4.42 0.0210
2017-05-12 2017-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,207,494 262 0.02 43,641 -1.15 0.0209
2017-02-09 2016-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,207,232 -38,531 -3.09 44,149 11.84 0.0221
2016-11-10 2016-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,245,763 89,379 7.73 39,475 17.35 0.0213
2016-08-09 2016-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,156,384 68,079 6.26 33,640 11.44 0.0194
2016-05-13 2016-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 1,088,305 209,615 23.86 30,188 21.27 0.0181
2016-02-10 2015-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 878,690 97,992 12.55 24,894 3.40 0.0155
2015-11-13 2015-09-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 780,698 120,074 18.18 24,075 16.83 0.0158
2015-08-14 2015-06-30 13F KEYSIGHT TECHNOLOGIES COM 49338L103 660,624 468,281 243.46 20,606 188.48 0.0126
2015-05-14 2015-03-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 192,343 1,938 1.02 7,143 11.09 0.0045
2015-02-06 2014-12-31 13F KEYSIGHT TECHNOLOGIES COM 49338L103 190,405 190,405 6,430 0.0042
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.