Mary Ann Sigler

Director, Ryerson, Inc.

Companies

McGraw Hill, Inc.Board member Jul 23, 2025 to now¹
Ingram MicroBoard member Oct 23, 2024 to Oct 29, 2024²
Key Energy ServicesBoard member Dec 27, 2016 to Dec 27, 2016³
Ryerson, Inc.Board member Aug 7, 2014 to Aug 15, 2014⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

McGraw Hill, Inc. MH7,500 shares⁵$104.9K at $13.99Jul 25, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

Jul 25, 2025Bought 7,500 shares at $17.00 of McGraw Hill, Inc.⁵
Oct 25, 2024Bought 7,500 shares at $22.00 of CIK 1897762⁶

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARMcGraw Hill, Inc., Board member
2
SEC EDGARIngram Micro, Board member
3
SEC EDGARKey Energy Services, Board member
4
SEC EDGARRyerson, Inc., Board member
5
SEC EDGARMcGraw Hill, Inc. shares after the filing of Jul 25, 2025
6
SEC EDGARForm 4 filed Oct 29, 2024