Callahan Michael James 4

What Happened

• Michael James Callahan, a Datadog director, converted 5,000 shares of Class B common stock into 5,000 shares of Class A common stock on May 12, 2026. The filing shows an acquired entry for 5,000 shares (conversion, price N/A) and a corresponding derivative disposition of 5,000 shares at $0.00 — i.e., no cash proceeds were received.

Key Details

• Transaction date: 2026-05-12; Form 4 filed: 2026-05-14 (filed timely).
• Acquired: 5,000 Class A shares via conversion (price listed as N/A).
• Disposed (derivative): 5,000 Class B shares at $0.00 (reflects the conversion event).
• Shares held after transaction: not specified in the filing.
• Footnotes:
  • F1: Each Class B share is convertible into one Class A share at the holder’s option and will convert automatically in certain situations; no expiration date.
  • F2: The shares are held by The Callahan-Thernstrom Family Trust, of which Mr. Callahan is trustee.

Context

• This was a non‑cash conversion of share class (a reclassification), not a market sale or open‑market purchase. Conversions like this do not necessarily indicate a change in sentiment, as they often simply convert voting/ownership units between share classes.