shareholders want Big Tech to be accountable for its toxic effects on young children, just as Big Tobacco was compelled to pay for tobacco addiction,

“The iPhone has made Apple Inc. and Wall Street hundreds of billions of dollars. Now some big shareholders are asking at what cost, in an unusual campaign to make the company more socially responsible.

“A leading activist investor and a pension fund are saying the smartphone maker needs to respond to what some see as a growing public-health crisis of youth phone addiction.

“Jana Partners LLC and the California State Teachers’ Retirement System, or Calstrs, which control about $2 billion of Apple shares, sent a letter to Apple on Saturday urging it to develop new software tools that would help parents control and limit phone use more easily and to study the impact of overuse on mental health.

“The Apple push is a preamble to a new several-billion-dollar fund Jana is seeking to raise this year to target companies it believes can be better corporate citizens. It is the first instance of a big Wall Street activist seeking to profit from the kind of social-responsibility campaign typically associated with a small fringe of investors.”