Core Laboratories Inc. /DE/ (CLB) insider trading.
In Q3 2026, insiders at Core Laboratories Inc. /DE/ reported 7 non-derivative transactions on 3 Forms 3, 4 and 5: 1 open-market purchase worth $54K and 0 sales.
- Transactions
- 7
- Purchases (P)
- 1
- Sales (S)
- 0
- Net shares, P minus S
- 5,000
- Insiders
- 3
- Last filed
- 2026-08-04
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Teo Sow Hang | Officer · CAO & Treasurer | 4 | 0 | 0 |
| Tattoli Mark Damian | Officer · SVP, Gen Counsel & Secretary | 2 | 0 | 0 |
| Bruno Lawrence | Director, Officer · Chairman and CEO | 1 | 1 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-01 | Tattoli Mark Damian | F (D) | 99 | $10.64 | 27,665 | Form 4 |
| 2026-08-01 | Tattoli Mark Damian | M (A) | 250 | $0 | 27,764 | Form 4 |
| 2026-08-01 | Teo Sow Hang | M (A) | 240 | $0 | 8,775 | Form 4 |
| 2026-08-01 | Teo Sow Hang | F (D) | 108 | $10.64 | 8,667 | Form 4 |
| 2026-08-01 | Teo Sow Hang | F (D) | 90 | $10.64 | 8,535 | Form 4 |
| 2026-08-01 | Teo Sow Hang | M (A) | 200 | $0 | 8,625 | Form 4 |
| 2026-07-31 | Bruno Lawrence | P (A) | 5,000 | $10.78 | 262,438 | Form 4 |
Transaction codes in this quarter
Get CLB insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1958086&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · CLB company page · Core Laboratories Inc. /DE/ on SEC.gov
Questions
Are insiders buying or selling Core Laboratories Inc. /DE/ (CLB)?
In Q3 2026, insiders at Core Laboratories Inc. /DE/ reported 7 non-derivative transactions on 3 Forms 3, 4 and 5: 1 open-market purchase worth $54K and 0 sales. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Core Laboratories Inc. /DE/ insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/clb.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.