I myself don't quite understand what all this means nor do I now what Hologic is. Can anyone shed some light on the subject?

(WASHINGTON) – A shareholder proposal sponsored by the Teamsters-affiliated GCC Benevolent Trust Fund secured an overwhelming majority vote of shareholders at last week’s Hologic Incorporated annual meeting. The proposal called on the Board of Directors to submit the adoption, maintenance or extension of any poison pill plan to a vote of the shareholders.

“Poison pill plans can be detrimental to investor interests and manipulated to insulate management,” said Ken Hall, Teamsters General Secretary-Treasurer. “Hologic owners agree that these plans need to be approved by shareholders.”
Teamsters Win Landslide Shareholder Vote At Hologic | Teamsters