MetaCap

Core Laboratories Insider Trades

NYSE: CLBEnergyOilfield Services/EquipmentUSD

10.09-0.07 (-0.69%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
1 · $53.90K
Sales
0 · $0
Shares bought / sold
5.00K / 0
Net activity
Net buying $53,900

Core Laboratories insider activity

Over the last 12 months, Core Laboratories insiders reported 29 transactions on SEC Form 4: 1 open-market purchase and 0 sales. Insiders bought $53,900 and sold $0 worth of stock, for net insider buying of $53,900. The most recent filing shows Tattoli Mark Damian (SVP, Gen Counsel & Secretary) reporting a transaction in 276 shares at $9.76 on Oct 1, 2026.

Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put CLB's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

CLB insider transactions

Core Laboratories insider transactions
DateInsiderTypeSharesValueFiling
Oct 1, 2026Teo Sow HangCAO & TreasurerOption exercise250—Form 4
Oct 1, 2026Teo Sow HangCAO & TreasurerTax withholding99$966.24Form 4
Oct 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise700—Form 4
Oct 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding276$2.69KForm 4
Aug 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise250—Form 4
Aug 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding99$1.05KForm 4
Aug 1, 2026Teo Sow HangCAO & TreasurerOption exercise200—Form 4
Aug 1, 2026Teo Sow HangCAO & TreasurerTax withholding90$957.60Form 4
Aug 1, 2026Teo Sow HangCAO & TreasurerOption exercise240—Form 4
Aug 1, 2026Teo Sow HangCAO & TreasurerTax withholding108$1.15KForm 4
Jul 31, 2026Bruno LawrenceChairman and CEOBuy5,000$53.90KForm 4
May 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise250—Form 4
May 1, 2026Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding97$1.36KForm 4
Apr 1, 2026Carnes Martha Z.DirectorOption exercise8,069—Form 4
Apr 1, 2026MARTINOVICH ROBERT FDirectorOption exercise8,069—Form 4
Apr 1, 2026Temeng KwakuDirectorOption exercise8,069—Form 4
Apr 1, 2026Klingensmith Harvey RobertDirectorOption exercise8,069—Form 4
Apr 1, 2026ANASTASIO CURTDirectorOption exercise8,069—Form 4
Apr 1, 2026Murray KatherineDirectorOption exercise8,069—Form 4
Dec 31, 2025Bruno LawrenceChairman and CEOOption exercise180,722—Form 4
Dec 31, 2025Bruno LawrenceChairman and CEOTax withholding112,681$1.81MForm 4
Dec 31, 2025Hill Christopher ScottSVP & CFOOption exercise61,417—Form 4
Dec 31, 2025Hill Christopher ScottSVP & CFOTax withholding32,152$515.40KForm 4
Dec 31, 2025Gresham GwendolynSVPOption exercise24,952—Form 4
Dec 31, 2025Gresham GwendolynSVPTax withholding19,301$309.40KForm 4
Dec 31, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise24,952—Form 4
Dec 31, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding14,310$229.39KForm 4
Dec 1, 2025Teo Sow HangCAO & TreasurerOption exercise864—Form 4
Dec 1, 2025Teo Sow HangCAO & TreasurerTax withholding340$5.23KForm 4
Oct 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise700—Form 4
Oct 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding276$3.47KForm 4
Oct 1, 2025Teo Sow HangCAO & TreasurerOption exercise250—Form 4
Oct 1, 2025Teo Sow HangCAO & TreasurerTax withholding99$1.25KForm 4
Aug 1, 2025Teo Sow HangCAO & TreasurerOption exercise240—Form 4
Aug 1, 2025Teo Sow HangCAO & TreasurerTax withholding108$1.14KForm 4
Aug 1, 2025Teo Sow HangCAO & TreasurerOption exercise200—Form 4
Aug 1, 2025Teo Sow HangCAO & TreasurerTax withholding90$947.70Form 4
Aug 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise250—Form 4
Aug 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding99$1.04KForm 4
May 1, 2025Teo Sow HangCAO & TreasurerOption exercise175—Form 4
May 1, 2025Teo Sow HangCAO & TreasurerTax withholding79$922.72Form 4
May 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise200—Form 4
May 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding79$922.72Form 4
May 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryOption exercise250—Form 4
May 1, 2025Tattoli Mark DamianSVP, Gen Counsel & SecretaryTax withholding99$1.16KForm 4
Apr 1, 2025Straughen MichaelDirectorOption exercise9,317—Form 4
Apr 1, 2025Straughen MichaelDirectorTax withholding4,634$69.42KForm 4
Apr 1, 2025Carnes Martha Z.DirectorOption exercise9,317—Form 4
Apr 1, 2025Klingensmith Harvey RobertDirectorOption exercise9,317—Form 4
Apr 1, 2025Temeng KwakuDirectorOption exercise9,317—Form 4
Apr 1, 2025ANASTASIO CURTDirectorOption exercise9,317—Form 4
Apr 1, 2025Murray KatherineDirectorOption exercise9,317—Form 4
Dec 31, 2024Bruno LawrenceChairman and CEOOption exercise69,574—Form 4
Dec 31, 2024Bruno LawrenceChairman and CEOTax withholding43,380$750.91KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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