MSC INDUSTRIAL DIRECT CO-A (MSM) Institutional Shareholders
MSC INDUSTRIAL DIRECT CO-A (MSM) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $5.55B in MSM holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MSM tracked by InsiderSet, reporting ownership valued at approximately $661.42M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $688.50M, representing an estimated gain of +4.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed MSM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in MSC INDUSTRIAL DIRECT CO-A (MSM).
This page ranks the largest institutional MSM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
458
Total Reported Value
$5.55B
Largest Holder
Blackrock, Inc.
Largest Position
$661.42M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
69
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 5,560,498 | $661,421,209 | $688,500,862 | +$27,079,653 | +4.09% | |
| Vanguard Portfolio Management Llc | 0.01% | 2,139,176 | $254,454,985 | $264,872,772 | +$10,417,787 | +4.09% | |
| Vanguard Capital Management Llc | 0.01% | 2,026,407 | $241,041,113 | $250,909,715 | +$9,868,602 | +4.09% | |
| Fuller & Thaler Asset Management, Inc. | 0.61% | 1,887,419 | $224,508,500 | $233,700,221 | +$9,191,721 | +4.09% | |
| American Century Companies Inc | 0.09% | 1,743,956 | $207,443,745 | $215,936,632 | +$8,492,887 | +4.09% | |
| Boston Partners | 0.18% | 1,714,389 | $203,954,463 | $212,275,646 | +$8,321,183 | +4.08% | |
| First Trust Advisors Lp | 0.12% | 1,676,859 | $199,462,080 | $207,628,681 | +$8,166,601 | +4.09% | |
| Charles Schwab Investment Management Inc | 0.02% | 1,530,616 | $182,066,773 | $189,520,873 | +$7,454,100 | +4.09% | |
| Sixth Street Partners Management Company, L.P. | 0.02% | 1,530,616 | $182,066,773 | $189,520,873 | +$7,454,100 | +4.09% | |
| State Street Corp | 0.01% | 1,463,620 | $174,097,599 | $181,225,428 | +$7,127,829 | +4.09% | |
| Dimensional Fund Advisors Lp | 0.03% | 1,248,087 | $148,451,153 | $154,538,132 | +$6,086,979 | +4.10% | |
| Geode Capital Management, Llc | 0.01% | 1,168,449 | $139,014,416 | $144,677,355 | +$5,662,939 | +4.07% | |
| Epoch Investment Partners, Inc. | 0.63% | 926,830 | $110,246,428 | $114,760,091 | +$4,513,663 | +4.09% | |
| Morgan Stanley | 0.00% | 783,623 | $93,212,220 | $97,028,200 | +$3,815,980 | +4.09% | |
| Victory Capital Management Inc | 0.05% | 751,553 | $89,397,229 | $93,057,292 | +$3,660,063 | +4.09% | |
| Quantinno Capital Management Lp | 0.09% | 653,578 | $77,743,170 | $80,926,028 | +$3,182,858 | +4.09% | |
| Citadel Advisors Llc | 0.04% | 619,507 | $73,690,358 | $76,707,357 | +$3,016,999 | +4.09% | |
| Alberta Investment Management Corp | 0.39% | 570,000 | $67,801,500 | $70,577,400 | +$2,775,900 | +4.09% | |
| Deprince Race & Zollo Inc | 1.23% | 705,775 | $65,121,859 | $87,389,061 | +$22,267,202 | +34.19% | |
| New South Capital Management Inc | 2.81% | 539,026 | $64,117,143 | $66,742,199 | +$2,625,056 | +4.09% | |
| Bank Of New York Mellon Corp | 0.01% | 470,840 | $56,006,428 | $58,299,409 | +$2,292,981 | +4.09% | |
| Aqr Capital Management Llc | 0.02% | 457,743 | $53,588,039 | $56,677,738 | +$3,089,699 | +5.77% | |
| Allianz Asset Management Gmbh | 0.05% | 444,741 | $52,901,942 | $55,067,831 | +$2,165,889 | +4.09% | |
| Northern Trust Corp | 0.01% | 435,234 | $51,771,085 | $53,890,674 | +$2,119,589 | +4.09% | |
| Alyeska Investment Group, L.P. | 0.13% | 419,828 | $49,938,541 | $51,983,103 | +$2,044,562 | +4.09% | |
| Boston Trust Walden Corp | 0.38% | 415,440 | $49,416,588 | $51,439,781 | +$2,023,193 | +4.09% | |
| Goldman Sachs Group Inc | 0.01% | 402,667 | $47,897,237 | $49,858,228 | +$1,960,991 | +4.09% | |
| Norges Bank | 0.00% | 398,005 | $47,342,695 | $49,280,979 | +$1,938,284 | +4.09% | |
| Fmr Llc | 0.00% | 392,387 | $46,674,479 | $48,585,358 | +$1,910,879 | +4.09% | |
| Invesco Ltd. | 0.00% | 375,210 | $44,631,230 | $46,458,502 | +$1,827,272 | +4.09% | |
| Crawford Investment Counsel Inc | 0.74% | 374,896 | $44,593,923 | $46,419,623 | +$1,825,700 | +4.09% | |
| Hancock Classic Value | Richard Pzena | 0.13% | 373,664 | $44,447,333 | $46,267,076 | +$1,819,743 | +4.09% |
| Bank Of America Corp | 0.00% | 366,572 | $43,603,739 | $45,388,945 | +$1,785,206 | +4.09% | |
| Royce & Associates Lp | 0.34% | 356,897 | $42,452,898 | $44,190,987 | +$1,738,089 | +4.09% | |
| Fil Ltd | 0.03% | 352,087 | $41,880,749 | $43,595,412 | +$1,714,663 | +4.09% | |
| Sg Capital Management Llc | 3.71% | 343,793 | $40,894,177 | $42,568,449 | +$1,674,272 | +4.09% | |
| Ameriprise Financial Inc | 0.01% | 331,101 | $39,384,485 | $40,996,926 | +$1,612,441 | +4.09% | |
| Freestone Grove Partners Lp | 0.25% | 321,239 | $38,211,379 | $39,775,813 | +$1,564,434 | +4.09% | |
| Qube Research & Technologies Ltd | 0.04% | 292,848 | $34,834,270 | $36,260,439 | +$1,426,169 | +4.09% | |
| Vanguard Fiduciary Trust Co | 0.01% | 288,483 | $34,315,053 | $35,719,965 | +$1,404,912 | +4.09% | |
| Bragg Financial Advisors, Inc | 0.90% | 281,492 | $33,483,474 | $34,854,339 | +$1,370,865 | +4.09% | |
| Gotham Asset Management, Llc | 0.08% | 278,004 | $33,068,576 | $34,422,455 | +$1,353,879 | +4.09% | |
| Alliancebernstein L.P. | 0.01% | 352,999 | $32,571,218 | $43,708,336 | +$11,137,118 | +34.19% | |
| Medina Value Partners, Llc | 6.03% | 258,570 | $30,756,902 | $32,016,137 | +$1,259,235 | +4.09% | |
| Jpmorgan Chase & Co | 0.00% | 257,328 | $30,242,146 | $31,862,353 | +$1,620,207 | +5.36% | |
| Millennium Management Llc | 0.02% | 248,481 | $29,556,815 | $30,766,917 | +$1,210,102 | +4.09% | |
| Interval Partners, Lp | 0.94% | 244,604 | $29,095,646 | $30,286,867 | +$1,191,221 | +4.09% | |
| Bahl & Gaynor Inc | 0.13% | 241,748 | $28,755,925 | $29,933,237 | +$1,177,312 | +4.09% | |
| Wellington Management Group Llp | 0.00% | 236,504 | $28,132,151 | $29,283,925 | +$1,151,774 | +4.09% | |
| Point72 Asset Management, L.P. | 0.04% | 229,504 | $27,299,501 | $28,417,185 | +$1,117,684 | +4.09% |
Frequently asked questions about MSM
Who owns the most MSM stock?
The largest holders of MSM are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MSC INDUSTRIAL DIRECT CO-A (MSM).
Is MSM widely held by superinvestors?
Many widely followed stocks like MSM appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MSM is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.