2m 2m 2m 2m 2m 2m 2m
Core Labor Br (CLB)
NYSE
$11.98-$0.07 (-0.58%)
Price as of Aug 25, 2026 8:06 AM EDT- $552.9MMarket Cap
- 8.96%1-Year Change
- Oil & Gas Equipment & ServicesIndustry
Core Labor Br (CLB)
$11.98-$0.07 (-0.58%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
ARIEL INVESTMENTS, LLC | 30.53% | 14.1M | +904,557 (+6.43%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 17.18% | 7.9M | +137,933 (+1.74%) | Dec 31, 2024 |
BLACKROCK INC. | 16.92% | 7.8M | -181,328 (-2.33%) | Jun 30, 2024 |
BLACKROCK, INC. | 16.18% | 7.5M | +251,615 (+3.37%) | Jun 30, 2026 |
FRED ALGER MANAGEMENT INC | 8.72% | 4.0M | -1.1M (-27.86%) | Dec 31, 2021 |
VANGUARD GROUP INC | 6.68% | 3.1M | +32,492 (+1.05%) | Dec 31, 2025 |
DISCIPLINED GROWTH INVESTORS INC /MN | 6.60% | 3.0M | -1.9M (-62.29%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 8.87% | 4.1M | 0 (0.00%) | Mar 31, 2026 |
RIVERPARK FUNDS TRUST | 4.79% | 2.2M | 0 (0.00%) | Mar 31, 2026 |
HARBOR FUNDS | 2.50% | 1.2M | -4,888 (-0.42%) | Apr 30, 2026 |
PROFESSIONALLY MANAGED PORTFOLIOS | 2.42% | 1.1M | 0 (0.00%) | Apr 30, 2026 |
ALGER FUNDS | 2.38% | 1.1M | 0 (0.00%) | Apr 30, 2026 |
SPDR SERIES TRUST | 2.02% | 931,166 | 0 (0.00%) | Apr 30, 2026 |
HEARTLAND GROUP INC | 1.96% | 901,721 | +751,721 (+83.37%) | Jun 30, 2026 |
Current Ownership Distribution
- Institutions770.5M (78.96%)
- Mutual Funds204.2M (20.93%)
- Insiders1.1M (0.11%)
- Other0 (0.00%)
Insider Transactions
- 0.11% (1.1M)Current InsiderOwnership (%, shares)
- 1Number of InsiderBuying (last 12 months)
- $2.8MAmount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Tattoli Mark Damian SVP, Gen Counsel & Secretary | Exempt | Aug 01, 2026 | $0.00 | 250 | $0.00 | 950 |
Tattoli Mark Damian SVP, Gen Counsel & Secretary | In Kind | Aug 01, 2026 | $1,053.36 | 99 | $10.64 | 27,665 |
Tattoli Mark Damian SVP, Gen Counsel & Secretary | Exempt | Aug 01, 2026 | $0.00 | 250 | $0.00 | 27,764 |
Bruno Lawrence Chairman and CEO | Buy | Jul 31, 2026 | $53,900.00 | 5,000 | $10.78 | 262,438 |
ANASTASIO CURT | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Klingensmith Harvey Robert | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Temeng Kwaku | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Klingensmith Harvey Robert | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
Carnes Martha Z. | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Klingensmith Harvey Robert | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 50,031 |
Temeng Kwaku | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
MARTINOVICH ROBERT F | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Temeng Kwaku | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 33,597 |
Carnes Martha Z. | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
Murray Katherine | Award | Apr 01, 2026 | $0.00 | 7,895 | $0.00 | 7,895 |
Carnes Martha Z. | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 54,397 |
MARTINOVICH ROBERT F | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
ANASTASIO CURT | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
MARTINOVICH ROBERT F | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 8,069 |
Murray Katherine | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 0 |
ANASTASIO CURT | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 23,805 |
Murray Katherine | Exempt | Apr 01, 2026 | $0.00 | 8,069 | $0.00 | 29,290 |
Schreffler Gwendolyn SVP | Award | Feb 12, 2026 | $0.00 | 33,490 | $0.00 | 33,490 |
Bruno Lawrence Chairman and CEO | Award | Feb 12, 2026 | $0.00 | 204,340 | $0.00 | 204,340 |
Tattoli Mark Damian SVP, Gen Counsel & Secretary | Award | Feb 12, 2026 | $0.00 | 33,490 | $0.00 | 33,490 |
Schreffler Gwendolyn SVP | Exempt | Dec 31, 2025 | $0.00 | 24,952 | $0.00 | 0 |
Bruno Lawrence Chairman and CEO | Exempt | Dec 31, 2025 | $0.00 | 180,722 | $0.00 | 0 |
Schreffler Gwendolyn SVP | In Kind | Dec 31, 2025 | $309,395.03 | 19,301 | $16.03 | 33,226 |
Hill Christopher Scott SVP & CFO | Exempt | Dec 31, 2025 | $0.00 | 61,417 | $0.00 | 0 |
Schreffler Gwendolyn SVP | Exempt | Dec 31, 2025 | $0.00 | 24,952 | $0.00 | 52,527 |