MH · Insider trading · 13F holders · Congress trades
McGraw Hill, Inc. (MH)
Who is buying and selling MH: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
MH at a glance
- No open-market insider purchases or sales of MH were filed in the last 90 days.
- 3 13F filers hold MH among their 50 largest positions, worth $1.3B combined. The biggest bets by portfolio weight are BlackBarn Capital Partners LP (5.8%) and Triodos Investment Management BV (0.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in MH.
MH insider trading
No open-market insider purchases or sales of MH were filed in the last 90 days.
Who owns MH? Hedge funds and superinvestors
3 13F filers hold MH among their 50 largest positions, worth $1.3B combined. The biggest bets by portfolio weight are BlackBarn Capital Partners LP (5.8%) and Triodos Investment Management BV (0.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Platinum Equity Advisors, LLC/DEHedge fund | 14.6% | $1.3B | 165,160,216 | +0.0% shares | Q2 2026 |
| BlackBarn Capital Partners LPHedge fund | 5.8% | $23.2M | 2,450,000 | +17.3% shares | Q2 2026 |
| Triodos Investment Management BVAsset manager | 0.1% | $2.1M | 220,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen MH in the grand portfolio →
MH stock trades by members of Congress
No member of Congress has disclosed a trade in MH.
MH questions and answers
Are insiders buying MH stock?
No open-market insider purchases or sales of MH were filed in the last 90 days.
Which hedge funds own MH?
3 13F filers hold MH among their 50 largest positions, worth $1.3B combined. The biggest bets by portfolio weight are BlackBarn Capital Partners LP (5.8%) and Triodos Investment Management BV (0.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded MH?
No member of Congress has disclosed a trade in MH.
Who is the largest holder of MH?
Among 13F filers, Platinum Equity Advisors, LLC/DE reports the largest MH position, $1.3B (165,160,216 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is BlackBarn Capital Partners LP's: 5.8% of its portfolio.
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