Bertolini Mark T sold $34.9M of OSCR
Bertolini Mark T (Chief Executive Officer) sold 1,206,310 shares of Oscar Health, Inc. (OSCR) at an average of $28.94 ($28.60–$29.79, $34.91M total) across 4 trades over 2026-06-25 to 2026-06-26 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The newest fact is the CEO’s open-market sale size (~1.21M shares; ~$34.9M) and the execution window (June 25–26) under a 10b5-1 plan, which can influence sentiment but is not a fundamental update by itself.
Market read
This is a notable insider-sale datapoint for OSCR, but the 10b5-1 structure typically limits interpretive signal.
What to watch
Traders should compare with prior insider activity and consider whether the CEO’s remaining stake (8.99M shares) meaningfully changes over time rather than reacting to a single tranche.
Background
The article is an SEC Form 4 insider transaction disclosure for Oscar Health, Inc. (OSCR).
Ticker impact
Oscar Health CEO Mark T Bertolini sold about $34.9M of OSCR shares via an open-market sale under a 10b5-1 plan (Form 4 filed June 29).
Likely limited, short-lived sentiment impact; follow-through depends on broader fundamentals and other insider activity.
The filing discloses transaction size, pricing range ($28.60–$29.79), and that it was executed under a pre-arranged 10b5-1 plan, which typically reduces signaling risk versus discretionary selling.
Market effects
No direct sector read-through; this is company-specific insider selling disclosure.
None indicated.
None indicated.
Counterpoint
Because the sale was executed under a pre-arranged 10b5-1 plan, the market may overreact; the disclosure may not reflect new negative information.
Key entities
- issuerOscar Health, Inc.
Subject of the Form 4 insider transaction; CEO sold shares totaling ~$34.9M.
- insiderBertolini Mark T
CEO and director who executed the open-market sales under a pre-arranged 10b5-1 plan.
