BorgWarner Inc.
US ˙ NYSE ˙ US0997241064

SecurityBWA / BorgWarner Inc.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership42,557 shares
Latest Disclosed Value $ 2,309,143
Asset Management One Co., Ltd. reports 20.56% increase in ownership of BWA / BorgWarner Inc.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 42,557 shares of BorgWarner Inc. (US:BWA) valued at $2,309,143 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 35,299 shares of BorgWarner Inc.. This represents a change in shares of 20.56% during the quarter. The current value of the position is $3,278,166 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)
2026-05-08 2026-03-31 13F BORGWARNER COM 099724106 42,557 7,258 20.56 2,309 42.88 0.0068
2026-01-27 2025-12-31 13F BORGWARNER COM 099724106 35,299 1,415 4.18 1,616 8.53 0.0045
2025-10-22 2025-09-30 13F BORGWARNER COM 099724106 33,884 -8,299 -19.67 1,490 5.45 0.0043
2025-07-31 2025-06-30 13F BORGWARNER COM 099724106 42,183 42,183 1,412 0.0044
2025-04-23 2025-03-31 13F BORGWARNER COM 099724106 0 -5,211 -100.00 0 -100.00
2025-01-30 2024-12-31 13F BORGWARNER COM 099724106 5,211 863 19.85 168 6.37 0.0006
2024-10-30 2024-09-30 13F BORGWARNER COM 099724106 4,348 863 24.76 158 40.18 0.0006
2024-07-18 2024-06-30 13F BORGWARNER COM 099724106 3,485 -81,235 -95.89 112 -96.19 0.0004
2024-05-02 2024-03-31 13F BORGWARNER COM 099724106 84,720 -2,435 -2.79 2,943 -6.15 0.0113
2024-01-24 2023-12-31 13F BORGWARNER COM 099724106 87,155 -39 -0.04 3,137 -10.91 0.0126
2023-10-19 2023-09-30 13F BORGWARNER COM 099724106 87,194 -1,847 -2.07 3,520 -19.15 0.0157
2023-07-31 2023-06-30 13F BORGWARNER COM 099724106 89,041 -170 -0.19 4,355 -0.62 0.0184
2023-04-25 2023-03-31 13F BORGWARNER COM 099724106 89,211 -3,609 -3.89 4,381 16.70 0.0199
2023-02-06 2022-12-31 13F BORGWARNER COM 099724106 92,820 -7,240 -7.24 3,755 19.52 0.0183
2022-11-04 2022-09-30 13F BORGWARNER COM 099724106 100,060 4,923 5.17 3,141 -1.04 0.0160
2022-07-29 2022-06-30 13F BORGWARNER COM 099724106 95,137 -3,728 -3.77 3,174 -17.49 0.0149
2022-05-13 2022-03-31 13F BORGWARNER COM 099724106 98,865 -11,283 -10.24 3,847 -22.16 0.0150
2022-02-09 2021-12-31 13F BORGWARNER COM 099724106 110,148 5,473 5.23 4,942 9.22 0.0172
2021-11-02 2021-09-30 13F BORGWARNER COM 099724106 104,675 -4,845 -4.42 4,525 -14.86 0.0173
2021-08-03 2021-06-30 13F BORGWARNER COM 099724106 109,520 -3,634 -3.21 5,315 1.32 0.0198
2021-05-14 2021-03-31 13F BORGWARNER COM 099724106 113,154 772 0.69 5,246 21.10 0.0208
2021-02-12 2020-12-31 13F BORGWARNER COM 099724106 112,382 9,747 9.50 4,332 9.04 0.0178
2020-11-13 2020-09-30 13F BORGWARNER COM 099724106 102,635 -1,488 -1.43 3,973 8.14 0.0183
2020-08-14 2020-06-30 13F BORGWARNER COM 099724106 104,123 -9,239 -8.15 3,674 33.02 0.0181
2020-05-14 2020-03-31 13F BORGWARNER COM 099724106 113,362 7,351 6.93 2,762 -39.94 0.0161
2020-02-14 2019-12-31 13F BORGWARNER COM 099724106 106,011 -614 -0.58 4,599 17.68 0.0207
2019-11-14 2019-09-30 13F BORGWARNER COM 099724106 106,625 553 0.52 3,908 -12.22 0.0188
2019-08-14 2019-06-30 13F BORGWARNER COM 099724106 106,072 -4,013 -3.65 4,452 5.27 0.0219
2019-05-15 2019-03-31 13F BORGWARNER COM 099724106 110,085 -242,841 -68.81 4,229 -65.50 0.0229
2019-02-13 2018-12-31 13F BORGWARNER COM 099724106 352,926 15,209 4.50 12,259 -15.15 0.0292
2018-11-14 2018-09-30 13F BORGWARNER COM 099724106 337,717 -1,251 -0.37 14,447 -1.31 0.0297
2018-08-14 2018-06-30 13F BORGWARNER COM 099724106 338,968 3,482 1.04 14,639 -13.13 0.0320
2018-05-14 2018-03-31 13F BORGWARNER COM 099724106 335,486 -14,897 -4.25 16,852 -6.02 0.0379
2018-02-14 2017-12-31 13F BORGWARNER COM 099724106 350,383 -6,862 -1.92 17,932 -1.87 0.0396
2017-11-14 2017-09-30 13F BORGWARNER COM 099724106 357,245 19,898 5.90 18,273 28.06 0.0429
2017-08-14 2017-06-30 13F BORGWARNER COM 099724106 337,347 -14,631 -4.16 14,269 -3.01 0.0364
2017-05-11 2017-03-31 13F BORGWARNER COM 099724106 351,978 -33,497 -8.69 14,712 -3.24 0.0386
2017-05-02 2016-12-31 13F/A-1 BORGWARNER COM 099724106 385,475 338,739 724.79 15,205 836.27 0.0389
2017-02-13 2016-12-31 13F BORGWARNER COM 099724106 385,475 15,205
2016-11-07 2016-09-30 13F BORGWARNER Com 099724106 46,736 15,310 48.72 1,624 76.14 0.0241
2016-08-03 2016-06-30 13F BORGWARNER Com 099724106 31,426 0 0.00 922 -22.85 0.0138
2016-05-05 2016-03-31 13F BORGWARNER Com 099724106 31,426 1,246 4.13 1,195 -9.61 0.0174
2016-01-28 2015-12-31 13F BORGWARNER Com 099724106 30,180 -2,000 -6.22 1,322 0.92 0.0197
2015-11-12 2015-09-30 13F BORGWARNER Com 099724106 32,180 0 0.00 1,310 -28.88 0.0199
2015-08-06 2015-06-30 13F BORGWARNER Com 099724106 32,180 0 0.00 1,842 -6.07 0.0255
2015-05-11 2015-03-31 13F BORGWARNER Com 099724106 32,180 -2,000 -5.85 1,961 2.67 0.0242
2015-02-09 2014-12-31 13F BORGWARNER Com 099724106 34,180 -27,786 -44.84 1,910 -42.54 0.0248
2014-11-05 2014-09-30 13F BORGWARNER Com 099724106 61,966 10,143 19.57 3,324 -1.74 0.0459
2014-08-12 2014-06-30 13F BORGWARNER Com 099724106 51,823 1,650 3.29 3,383 11.47 0.0505
2014-05-05 2014-03-31 13F BORGWARNER Com 099724106 50,173 12,581 33.47 3,035 44.66 0.0478
2014-02-05 2013-12-31 13F/A-1 BORGWARNER COM 099724106 37,592 14,847 65.28 2,098 -9.10 0.0325
2014-01-29 2013-12-31 13F BORGWARNER COM 099724106 37,592 2,098
2014-02-05 2013-09-30 13F/A-1 BORGWARNER COM 099724106 22,745 780 3.55 2,308 21.67 0.0347
2013-11-06 2013-09-30 13F BORGWARNER Com 099724106 22,745 2,308
2014-02-12 2013-06-30 13F/A-1 BORGWARNER COM 099724106 21,965 21,965 1,897 0.0308
2013-08-05 2013-06-30 13F BORGWARNER Com 099724106 21,965 1,897
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.