| # | Holder | Shares | % of Shares Out | Change | Filing Date |
|---|---|---|---|---|---|
| 1 |
Platinum Equity LLC
|
165.160m | 86.34% | — | Mar 31 2026 |
| 2 |
T. Rowe Price Investment Management, Inc.
|
7.193m | 3.76% | -48.339k | Mar 31 2026 |
| 3 |
American Century Investment Management, Inc.
|
4.178m | 2.18% | +803.996k | Mar 31 2026 |
| 4 |
BlackBarn Capital Partners LP
|
2.088m | 1.09% | +688.492k | Mar 31 2026 |
| 5 |
Alyeska Investment Group, L.P.
|
1.738m | 0.91% | -3.587k | Mar 31 2026 |
|
1
Platinum Equity LLC
|
86.34%
165.160m
|
|
2
T. Rowe Price Investment Management, Inc.
|
3.76%
7.193m
|
|
3
American Century Investment Management, Inc.
|
2.18%
4.178m
|
|
4
BlackBarn Capital Partners LP
|
1.09%
2.088m
|
|
5
Alyeska Investment Group, L.P.
|
0.91%
1.738m
|
| The largest shareholders show who really holds influence: big institutional owners shape a stock's liquidity, and building or cutting positions can move the price. | |
| The 5 largest shareholders together hold 94.29% of Mcgraw Hill Inc, with Platinum Equity LLC the biggest at 86.34%, followed by T. Rowe Price Investment Management, Inc. (3.76%) and American Century Investment Management, Inc. (2.18%). |
| Date | Insider & Role | Type | Price | Quantity | Volume |
|---|---|---|---|---|---|
| Sep 21 2026 |
John Mitchell
CEO
|
Purchases
|
$182.45 | + 15,000 | $2,736,750 |
| Sep 18 2026 |
Sarah Chen
CFO
|
Sales
|
$179.80 | - 8,500 | $1,528,300 |
| Sep 14 2026 |
Robert Williams
COO
|
Purchases
|
$175.20 | + 12,000 | $2,102,400 |
| Sep 09 2026 |
Emily Rodriguez
Director
|
Sales
|
$181.30 | - 5,200 | $942,760 |
| Sep 03 2026 |
Michael Thompson
SVP Operations
|
Purchases
|
$170.50 | + 20,000 | $3,410,000 |
| Aug 27 2026 |
Lisa Park
General Counsel
|
Sales
|
$177.90 | - 6,800 | $1,209,720 |
| No transactions found for this filter. | |||||
|
John Mitchell
PURCHASES
|
Sep 21 2026
$182.45
|
|
Sarah Chen
SALES
|
Sep 18 2026
$179.80
|
|
Robert Williams
PURCHASES
|
Sep 14 2026
$175.20
|
|
Emily Rodriguez
SALES
|
Sep 09 2026
$181.30
|
|
Michael Thompson
PURCHASES
|
Sep 03 2026
$170.50
|
|
Lisa Park
SALES
|
Aug 27 2026
$177.90
|
| No transactions found for this filter. | |
| Insider transactions show you what executives, directors and major shareholders do with their own stock: people who know the company from the inside. Buys are the most telling signal, because insiders invest their own money. Sells are harder to read, since they can also be driven by taxes, diversification or expiring option programs. |
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