Mannen Maryann T.

Maryann T. Mannen (CIK 0001408964, 389 transactions across six issuers) has one of the cleanest industry-rotation fingerprints in the insider dataset. Her Form 4 history begins in 2007 with FMC Technologies Inc. (old FTI), where she sold 229,422 shares across 250 transactions — a complete liquidation at what turned out to be a favorable moment, since FMC merged into TechnipFMC plc in 2017. She then held and sold a further 18,173 TechnipFMC shares in 2017–2020 before the name disappears from her file. Since 2015 her primary filing address has been Owens Corning (OC), where 86 plan-award transactions with no market sells represent the clearest retention pattern in the file. By 2021 she added Marathon Petroleum (MPC) and MPLX LP exposure — energy midstream names alongside OC in a broader industrial allocation — including a single large MPLX plan award of 48,863 shares in March 2025. She has two recent Prudential (PRU) plan entries in May–June 2026, confirming the current equity-compensation vehicle. The honest read is a deliberate sub-250K-share exit of FMC/TechnipFMC followed by a slow, plan-driven build into industrial REIT/midstream names with no offsetting market sells.