Tattoli Mark Damian 4
4 · Core Laboratories Inc. /DE/ · Filed May 4, 2026
Research Summary
AI-generated summary of this filing
Core Laboratories (CLB) SVP Mark Tattoli Exercises Derivatives, Sells 97 Shares
What Happened
- Mark Damian Tattoli, Senior Vice President, General Counsel & Secretary of Core Laboratories (CLB), recorded derivative exercise/conversions on May 1, 2026. The filing shows an acquisition of 250 shares via exercise/conversion (code M) and a simultaneous disposition of 250 derivative shares (code M, $0 price). Separately, 97 shares were disposed to cover tax withholding (code F) at $14.07 per share for a total of $1,365.
Key Details
- Transaction date(s): May 1, 2026. Form filed: May 4, 2026 (timely filing).
- Derivative activity: 250 shares acquired (exercise/conversion, code M, $0 price) and 250 derivative shares disposed (code M, $0 price).
- Tax withholding: 97 shares surrendered/disposed at $14.07 each = $1,365 (code F).
- Shares owned after the reported transactions: not specified in the provided filing excerpt.
- Footnotes: F1 — Restricted shares vest annually over six years if service continues; F2 — multiple restricted share grants are included in the total.
- No indication this is a 10% owner transaction or a 10b5-1 plan in the excerpt.
Context
- The M codes indicate exercise or conversion of derivative awards (e.g., options or vested restricted share units). The filing pattern — acquisition plus an immediate disposition and a small share surrender for taxes — is commonly a routine net settlement or tax-withholding action tied to vesting or exercise, not necessarily a directional bet on the stock.
- Purchases by insiders tend to be considered more informative than routine exercises or tax-withholdings; this filing primarily documents internal compensation mechanics rather than an open-market buy or sell.
Insider Transaction Report
Form 4
Tattoli Mark Damian
SVP, Gen Counsel & Secretary
Transactions
- Tax Payment
Common Stock
2026-05-01$14.07/sh−97$1,365→ 27,513.621 total - Exercise/Conversion
Common Stock
2026-05-01+250→ 27,610.621 total - Exercise/Conversion
Restricted Shares
[F1][F2]2026-05-01−250→ 1,200 totalExercise: $0.00→ Common Stock (250 underlying)
Holdings
- 20(indirect: Custodial account)
Common Stock
- 1,694.842(indirect: 401 (k) Plan)
Common Stock
Footnotes (2)
- [F1]The Restricted Shares vest annually over six years on the anniversary of the grant date in the amount specified in the award agreement, provided the reporting person remains in continuous service on each such vesting date.
- [F2]Multiple restricted share grants are included in this total.
Signature
/s/ Mark D. Tattoli|2026-05-04