MH · McGraw Hill, Inc. · Shareholders & Ownership
Every disclosed holder of MH in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MH
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 193,176,024 | 100.98% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 165,160,216 | 86.33% |
| Remaining | 167,027,426 | -87.31% |
| Registered funds (N-PORT, not summed) | 10,603,295 | 5.54% |
Shares outstanding: 191,308,814, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MH
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Platinum Equity Advisors, LLC/DE
13F
CIK 1803274 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
165,160,216 | ||
| 2 |
|
165,160,216 | ||
| 2.1 |
|
165,160,216 | ||
| 3 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,477,614 | ||
| 3.1 |
Small Cap Value Fund
Fund
S000005781 · Registered fund · Jun 30, 2026
American Century Capital Portfolios, Inc., not summed
|
2,415,000 | ||
| 4 |
BlackBarn Capital Partners LP
13F
CIK 2010204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,450,000 | ||
| 5 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,741,124 | ||
| 5.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
666,188 | ||
| 5.2 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
234,216 | ||
| 5.3 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
48,212 | ||
| 5.4 |
iShares Morningstar Small-Cap Value ETF
Fund
S000004435 · Registered fund · Jul 31, 2026
iShares Trust, not summed
|
5,725 | ||
| 5.5 |
iShares Russell Small/Mid-Cap Index Fund
Fund
S000050373 · Registered fund · Jul 31, 2026
BlackRock Funds, not summed
|
5,065 | ||
| 6 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,668,132 | ||
| 7 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,598,786 | ||
| 8 |
Alyeska Investment Group, L.P.
13F
CIK 1453072 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,508,691 | ||
| 9 |
SCHRODER INVESTMENT MANAGEMENT GROUP
13F
CIK 1086619 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,334,848 | ||
| 10 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,244,483 | ||
| 11 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,221,450 | ||
| 12 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,125,151 | ||
| 13 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
897,538 | ||
| 14 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
656,425 | ||
| 15 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
599,608 | ||
| 16 |
Bridge Builder Small/Mid Cap Value Fund
Fund
S000048337 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
|
597,786 | ||
| 17 |
|
552,369 | ||
| 17.1 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
10,000 | ||
| 17.2 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
689 | ||
| 18 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
544,595 | ||
| 19 |
|
516,768 | ||
| 20 |
|
502,081 | ||
| 21 |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F
CIK 1535845 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
475,000 | ||
| 22 |
Allen Simon Jonathan
Insider
CIK 2075514 · Aug 11, 2026
Director, President, CEO, issuer-wide, not summed
|
463,794 | ||
| 23 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
462,142 | ||
| 24 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
422,974 | ||
| 25 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
416,445 | ||
| 26 |
JPMorgan Small Cap Value Fund
Fund
S000003899 · Registered fund · Jun 30, 2026
JPMorgan Trust II, not summed
|
391,081 | ||
| 27 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
364,982 | ||
| 28 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
357,044 | ||
| 28.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
|
4,986 | ||
| 29 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
353,541 | ||
| 30 |
PEREGRINE CAPITAL MANAGEMENT LLC
13F
CIK 764529 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
351,658 | ||
| 31 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
315,499 | ||
| 32 |
JPMorgan U.S. Small Company Fund
Fund
S000002795 · Registered fund · Jun 30, 2026
JPMorgan Trust I, not summed
|
308,086 | ||
| 33 |
FRANKLIN RESOURCES INC
13F
CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
306,908 | ||
| 33.1 |
Putnam Small Cap Value Fund
Fund
S000003854 · Registered fund · Aug 31, 2026
Putnam Investment Funds, not summed
|
221,828 | ||
| 33.2 |
Putnam VT Small Cap Value Fund
Fund
S000003888 · Registered fund · Jun 30, 2026
Putnam Variable Trust, not summed
|
84,972 | ||
| 34 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
295,006 | ||
| 35 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
262,615 | ||
| 35.1 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
17,851 | ||
| 35.2 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
11,312 | ||
| 35.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
3,402 | ||
| 36 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
254,954 | ||
| 37 |
SEI INVESTMENTS CO
13F
CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
254,342 | ||
| 37.1 |
SIIT SMALL CAP II FUND
Fund
S000036633 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
17,718 | ||
| 37.2 |
SIIT SMALL CAP FUND
Fund
S000006772 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
16,150 | ||
| 37.3 |
SIIT EXTENDED MARKET INDEX FUND
Fund
S000035814 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
4,100 | ||
| 38 |
Triodos Investment Management BV
13F
CIK 1748729 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
220,000 | ||
| 39 |
|
213,142 | ||
| 40 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
204,480 | ||
| 40.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
116,798 | ||
| 40.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
60,817 | ||
| 40.3 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
14,000 | ||
| 40.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
12,000 | ||
| 41 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
180,915 | ||
| 42 |
|
159,218 | ||
| 43 |
Militia Capital Management LLC
13F
CIK 2130487 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
152,366 | ||
| 44 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
148,861 | ||
| 45 |
Hartford Schroders US Small Cap Opportunities Fund
Fund
S000054859 · Registered fund · Jul 31, 2026
HARTFORD MUTUAL FUNDS II, INC, not summed
|
147,585 | ||
| 46 |
LOS ANGELES CAPITAL MANAGEMENT LLC
13F
CIK 1177206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
142,607 | ||
| 47 |
|
135,152 | ||
| 48 |
TD Asset Management Inc
13F
CIK 1056053 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
116,548 | ||
| 49 |
BNP PARIBAS ASSET MANAGEMENT Holding S.A.
13F
CIK 1520354 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
114,953 | ||
| 50 |
SMALL CAP EQUITY FUND
Fund
S000001160 · Registered fund · Jun 30, 2026
GuideStone Funds, not summed
|
114,444 |
3 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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