MSC Industrial Direct Co., Inc.
US ˙ NYSE ˙ US5535301064

SecurityMSM / MSC Industrial Direct Co., Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,357,419 shares
Latest Disclosed Value $ 125,240,063
Dimensional Fund Advisors Lp reports 1.08% increase in ownership of MSM / MSC Industrial Direct Co., Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,357,419 shares of MSC Industrial Direct Co., Inc. (US:MSM) valued at $125,249,051 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,342,935 shares of MSC Industrial Direct Co., Inc.. This represents a change in shares of 1.08% during the quarter. The current value of the position is $159,103,081 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)
2026-05-07 2026-03-31 13F MSC INDL DIRECT CL A 553530106 1,357,419 14,484 1.08 125,240 10.88 0.0056
2026-02-12 2025-12-31 13F MSC INDL DIRECT CL A 553530106 1,342,935 20,503 1.55 112,951 -7.30 0.0237
2025-11-12 2025-09-30 13F MSC INDL DIRECT CL A 553530106 1,322,432 15,765 1.21 121,842 9.67 0.0261
2025-08-12 2025-06-30 13F MSC INDL DIRECT CL A 553530106 1,306,667 52,321 4.17 111,096 14.03 0.0257
2025-05-13 2025-03-31 13F MSC INDL DIRECT CL A 553530106 1,254,346 174,872 16.20 97,423 20.84 0.0242
2025-02-13 2024-12-31 13F MSC INDL DIRECT CL A 553530106 1,079,474 102,660 10.51 80,621 -4.10 0.0194
2024-11-07 2024-09-30 13F MSC INDL DIRECT CL A 553530106 976,814 37,834 4.03 84,068 12.89 0.0204
2024-08-09 2024-06-30 13F MSC INDL DIRECT CL A 553530106 938,980 61,022 6.95 74,467 -12.60 0.0195
2024-05-10 2024-03-31 13F MSC INDL DIRECT CL A 553530106 877,958 48,179 5.81 85,197 1.40 0.0231
2024-02-07 2023-12-31 13F MSC INDL DIRECT CL A 553530106 829,779 32,312 4.05 84,024 7.35 0.0245
2023-11-09 2023-09-30 13F MSC INDL DIRECT CL A 553530106 797,467 53,928 7.25 78,273 10.49 0.0257
2023-08-09 2023-06-30 13F MSC INDL DIRECT CL A 553530106 743,539 20,344 2.81 70,843 16.62 0.0226
2023-05-12 2023-03-31 13F MSC INDL DIRECT CL A 553530106 723,195 15,090 2.13 60,746 106,470.18 0.0205
2023-02-09 2022-12-31 13F MSC INDL DIRECT CL A 553530106 708,105 -2,616 -0.37 58 -99.89 0.0171
2022-11-10 2022-09-30 13F MSC INDL DIRECT CL A 553530106 710,721 56,436 8.63 51,748 5.30 0.0199
2022-08-12 2022-06-30 13F MSC INDL DIRECT CL A 553530106 654,285 26,049 4.15 49,143 -8.20 0.0176
2022-05-13 2022-03-31 13F MSC INDL DIRECT CLA 553530106 628,236 11,888 1.93 53,534 3.33 0.0165
2022-02-09 2021-12-31 13F MSC INDL DIRECT CLA 553530106 616,348 -13,898 -2.21 51,810 2.50 0.0157
2021-11-12 2021-09-30 13F MSC INDL DIRECT CLA 553530106 630,246 -143,578 -18.55 50,544 -27.20 0.0163
2021-08-12 2021-06-30 13F MSC INDL DIRECT CLA 553530106 773,824 -13,416 -1.70 69,431 -2.22 0.0220
2021-05-14 2021-03-31 13F MSC INDL DIRECT CLA 553530106 787,240 -24,642 -3.04 71,004 3.63 0.0235
2021-03-08 2020-12-31 13F/A-2 MSC INDL DIRECT CLA 553530106 811,882 -128,791 -13.69 68,516 15.11 0.0247
2021-02-11 2020-12-31 13F MSC INDL DIRECT CLA 553530106 811,882 -128,791 68,516 24,744.3374
2020-11-12 2020-09-30 13F MSC INDL DIRECT CLA 553530106 940,673 16,883 1.83 59,524 -11.50 0.0252
2020-08-13 2020-06-30 13F MSC INDL DIRECT CLA 553530106 923,790 82,043 9.75 67,256 45.36 0.0296
2020-05-14 2020-03-31 13F MSC INDL DIRECT CLA 553530106 841,747 89,794 11.94 46,267 -21.59 0.0241
2020-02-14 2019-12-31 13F MSC INDL DIRECT CLA 553530106 751,953 38,151 5.34 59,007 13.98 0.0215
2019-11-12 2019-09-30 13F MSC INDL DIRECT CLA 553530106 713,802 137,624 23.89 51,769 21.00 0.0201
2019-08-13 2019-06-30 13F MSC INDL DIRECT CLA 553530106 576,178 33,973 6.27 42,785 -4.60 0.0166
2019-08-12 2019-03-31 13F/A-2 MSC INDL DIRECT CLA 553530106 542,205 12,210 2.30 44,846 10.01 0.0179
2019-05-10 2019-03-31 13F MSC INDL DIRECT CLA 553530106 542,205 12,210 44,846
2019-02-26 2018-12-31 13F/A-1 MSC INDL DIRECT CLA 553530106 529,995 25,564 5.07 40,767 -8.27 0.0185
2019-02-13 2018-12-31 13F MSC INDL DIRECT CLA 553530106 529,995 25,564 40,767
2018-11-13 2018-09-30 13F MSC INDL DIRECT CLA 553530106 504,431 43,426 9.42 44,444 13.62 0.0169
2018-08-10 2018-06-30 13F MSC INDL DIRECT CLA 553530106 461,005 -4,650 -1.00 39,117 -8.40 0.0156
2018-05-11 2018-03-31 13F MSC INDL DIRECT CLA 553530106 465,655 -5,432 -1.15 42,705 -6.22 0.0178
2018-02-12 2017-12-31 13F MSC INDL DIRECT CLA 553530106 471,087 4,880 1.05 45,537 29.26 0.0189
2017-11-13 2017-09-30 13F MSC INDL DIRECT CLA 553530106 466,207 -918 -0.20 35,230 -12.26 0.0154
2017-08-11 2017-06-30 13F MSC INDL DIRECT CLA 553530106 467,125 45,196 10.71 40,153 -7.39 0.0185
2017-05-12 2017-03-31 13F MSC INDL DIRECT CLA 553530106 421,929 9,409 2.28 43,356 13.75 0.0207
2017-02-09 2016-12-31 13F MSC INDL DIRECT CLA 553530106 412,520 -3,437 -0.83 38,115 24.83 0.0190
2016-11-10 2016-09-30 13F MSC INDL DIRECT CLA 553530106 415,957 46,870 12.70 30,534 17.25 0.0165
2016-08-09 2016-06-30 13F MSC INDL DIRECT CLA 553530106 369,087 2,545 0.69 26,041 -6.90 0.0150
2016-05-13 2016-03-31 13F MSC INDL DIRECT CLA 553530106 366,542 -19,655 -5.09 27,970 28.70 0.0167
2016-02-10 2015-12-31 13F MSC INDL DIRECT CLA 553530106 386,197 61,442 18.92 21,733 9.65 0.0135
2015-11-13 2015-09-30 13F MSC INDL DIRECT CLA 553530106 324,755 65,660 25.34 19,821 9.65 0.0130
2015-08-14 2015-06-30 13F MSC INDL DIRECT CLA 553530106 259,095 24,055 10.23 18,077 6.53 0.0111
2015-05-14 2015-03-31 13F MSC INDL DIRECT CLA 553530106 235,040 62,517 36.24 16,969 21.04 0.0107
2015-02-06 2014-12-31 13F MSC INDL DIRECT CLA 553530106 172,523 59,991 53.31 14,019 45.76 0.0092
2014-11-13 2014-09-30 13F MSC INDL DIRECT CLA 553530106 112,532 21,517 23.64 9,618 10.51 0.0068
2014-08-08 2014-06-30 13F MSC INDL DIRECT CLA 553530106 91,015 1,948 2.19 8,703 12.95 0.0060
2014-05-14 2014-03-31 13F MSC INDL DIRECT CLA 553530106 89,067 6,203 7.49 7,705 14.97 0.0058
2014-02-12 2013-12-31 13F MSC INDL DIRECT CLA 553530106 82,864 26,157 46.13 6,702 45.32 0.0052
2013-11-13 2013-09-30 13F MSC INDL DIRECT CLA 553530106 56,707 3,838 7.26 4,612 12.60 0.0040
2013-08-15 2013-06-30 13F MSC INDL DIRECT CLA 553530106 52,869 52,869 4,096 0.0039
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.