RBC Bearings Incorporated
US ˙ NYSE

SecurityRBC / RBC Bearings Incorporated
InstitutionPort Capital LLC
Latest Disclosed Ownership343,831 shares
Latest Disclosed Value $ 186,741,493
Port Capital LLC reports 7.04% decrease in ownership of RBC / RBC Bearings Incorporated

On May 15, 2026 - Port Capital LLC filed a 13F-HR form disclosing ownership of 343,831 shares of RBC Bearings Incorporated (US:RBC) valued at $186,741,493 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 369,853 shares of RBC Bearings Incorporated. This represents a change in shares of -7.04% during the quarter. The current value of the position is $202,777,771 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)
2026-05-15 2026-03-31 13F RBC BEARINGS COM 75524B104 343,831 -26,022 -7.04 186,741 12.59 8.3041
2026-02-17 2025-12-31 13F RBC BEARINGS COM 75524B104 369,853 2,005 0.55 165,853 15.52 7.1529
2025-11-14 2025-09-30 13F RBC BEARINGS COM 75524B104 367,848 3,300 0.91 143,567 2.34 5.9834
2025-08-14 2025-06-30 13F RBC BEARINGS COM 75524B104 364,548 11,690 3.31 140,278 23.55 5.9651
2025-05-15 2025-03-31 13F RBC BEARINGS COM 75524B104 352,858 -26,760 -7.05 113,539 -0.02 5.1478
2025-02-14 2024-12-31 13F RBC BEARINGS COM 75524B104 379,618 -5,483 -1.42 113,559 -1.50 5.1830
2024-11-14 2024-09-30 13F RBC BEARINGS COM 75524B104 385,101 3,525 0.92 115,292 12.00 5.1674
2024-08-14 2024-06-30 13F RBC BEARINGS INC COM COM 75524B104 381,576 4,390 1.16 102,942 0.95 5.1576
2024-05-15 2024-03-31 13F RBC BEARINGS INC COM COM 75524B104 377,186 7,613 2.06 101,972 -3.15 5.1115
2024-02-15 2023-12-31 13F RBC BEARINGS INC COM COM 75524B104 369,573 1,454 0.39 105,288 22.16 5.8737
2023-11-14 2023-09-30 13F RBC BEARINGS INC COM COM 75524B104 368,119 3,668 1.01 86,188 8.74 5.3794
2023-08-14 2023-06-30 13F RBC BEARINGS INC COM COM 75524B104 364,451 13,825 3.94 79,257 -2.87 4.7683
2023-05-15 2023-03-31 13F RBC BEARINGS INC COM COM 75524B104 350,626 15,580 4.65 81,601 16.34 5.3029
2023-02-15 2022-12-31 13F RBC BEARINGS INC COM COM 75524B104 335,046 5,519 1.67 70,142 2.43 5.0702
2022-11-14 2022-09-30 13F RBC BEARINGS INC COM COM 75524B104 329,527 -24,239 -6.85 68,479 4.66 5.5600
2022-08-15 2022-06-30 13F RBC BEARINGS INC COM COM 75524B104 353,766 -39,928 -10.14 65,429 -14.28 5.1234
2022-05-16 2022-03-31 13F RBC BEARINGS INC COM COM 75524B104 393,694 -11,700 -2.89 76,329 -6.78 5.2773
2022-02-14 2021-12-31 13F RBC BEARINGS INC COM COM 75524B104 405,394 -190,145 -31.93 81,877 -35.21 5.0355
2021-11-15 2021-09-30 13F RBC BEARINGS INC COM COM 75524B104 595,539 43,543 7.89 126,373 14.80 6.3789
2021-08-16 2021-06-30 13F RBC BEARINGS INC COM COM 75524B104 551,996 15,035 2.80 110,079 4.18 5.7315
2021-05-17 2021-03-31 13F RBC BEARINGS INC COM COM 75524B104 536,961 40,960 8.26 105,658 18.98 5.9818
2021-02-16 2020-12-31 13F RBC BEARINGS INC COM COM 75524B104 496,001 61,223 14.08 88,804 68.51 6.0432
2020-11-16 2020-09-30 13F RBC BEARINGS INC COM COM 75524B104 434,778 84,364 24.08 52,699 12.20 4.5403
2020-08-17 2020-06-30 13F/A-1 RBC BEARINGS INC COM COM 75524B104 350,414 98,358 39.02 46,969 65.22 4.5264
2020-08-14 2020-06-30 13F RBC BEARINGS INC COM COM 75524B104 265,101 13,045 35,534 4,118,714.1044
2020-05-15 2020-03-31 13F RBC BEARINGS INC COM COM 75524B104 252,056 44,981 21.72 28,429 -13.29 3.9541
2020-02-14 2019-12-31 13F RBC BEARINGS INC COM COM 75524B104 207,075 17,275 9.10 32,788 4.12 3.6181
2019-11-14 2019-09-30 13F RBC BEARINGS INC COM COM 75524B104 189,800 2,194 1.17 31,490 0.62 3.5938
2019-08-14 2019-06-30 13F RBC BEARINGS INC COM COM 75524B104 187,606 13,855 7.97 31,295 41.63 3.6890
2019-05-15 2019-03-31 13F RBC BEARINGS INC COM COM 75524B104 173,751 36,292 26.40 22,096 22.61 2.8899
2019-02-13 2018-12-31 13F RBC BEARINGS COM 75524B104 137,459 -1,870 -1.34 18,021 -13.98 2.7394
2018-11-14 2018-09-30 13F RBC BEARINGS INC COM COM 75524B104 139,329 2,415 1.76 20,950 18.79 2.5394
2018-07-11 2018-06-30 13F RBC BEARINGS COM 75524B104 136,914 10,955 8.70 17,636 12.73 2.3038
2018-05-08 2018-03-31 13F/A-1 RBC BEARINGS COM 75524B104 125,959 4,051 3.32 15,644 1.53 2.2122
2018-05-07 2018-03-31 13F RBC BEARINGS INC COM COM 75524B104 125,959 4,051 15,644
2018-03-01 2017-12-31 13F/A-1 RBC BEARINGS INC COM COM 75524B104 121,908 121,908 15,409 2.1769
2018-01-25 2017-12-31 13F RBC BEARINGS INC COM COM 75524B104 75,503 9,544 4.2563
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.