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Quest Diagnostic (DGX)
NYSE
$197.19+$3.60 (+1.86%)
Price as of Jun 23, 2026 7:00 PM EDT- $21.4BMarket Cap
- 9.65%1-Year Change
- Diagnostics & ResearchIndustry
Quest Diagnostic (DGX)
$197.19+$3.60 (+1.86%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD GROUP INC | 13.00% | 14.4M | +140,450 (+0.98%) | Dec 31, 2025 |
BLACKROCK FUNDING, INC. /DE | 9.15% | 10.1M | -13,469 (-0.13%) | Dec 31, 2024 |
BLACKROCK INC. | 9.09% | 10.1M | -641,170 (-6.37%) | Jun 30, 2024 |
BLACKROCK, INC. | 8.29% | 9.2M | -286,926 (-3.13%) | Mar 31, 2026 |
ABRDN INC. | 7.58% | 8.4M | +8.4M (+100.00%) | Dec 31, 2010 |
N/A | 6.46% | 7.1M | +7.1M (+100.00%) | Mar 31, 2026 |
PRICE T ROWE ASSOCIATES INC /MD/ | 5.69% | 6.3M | +830 (+0.01%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 9.50% | 10.5M | -47,408 (-0.45%) | Mar 31, 2026 |
MFS SERIES TRUST IX | 7.03% | 7.8M | 0 (0.00%) | Jan 31, 2026 |
MUTUAL OF AMERICA INVESTMENT CORP | 5.65% | 6.3M | 0 (0.00%) | Mar 31, 2026 |
AMERICAN CENTURY INVESTMENT TRUST | 5.16% | 5.7M | 0 (0.00%) | Mar 31, 2026 |
TRANSAMERICA FUNDS | 3.85% | 4.3M | 0 (0.00%) | Apr 30, 2026 |
THOMPSON IM FUNDS INC | 3.36% | 3.7M | 0 (0.00%) | Feb 28, 2026 |
iSHARES TRUST | 2.68% | 3.0M | -52,855 (-1.78%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions1.8B (66.53%)
- Mutual Funds923.5M (33.38%)
- Insiders2.3M (0.08%)
- Other0 (0.00%)
Insider Transactions
- 0.08% (2.3M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 7Number of InsiderSelling (last 12 months)
- $203.5MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
WENTWORTH TIMOTHY C | Award | Apr 01, 2026 | $0.00 | 198 | $0.00 | 198 |
WENTWORTH TIMOTHY C | Award | Mar 09, 2026 | $0.00 | 215 | $0.00 | 215 |
PREVOZNIK MICHAEL E SVP & General Counsel | Sell | Mar 05, 2026 | $799,682.38 | 3,878 | $206.21 | 37,557 |
Doherty Catherine T. EVP, Regional Businesses | Sell | Mar 05, 2026 | $1.1M | 5,558 | $206.21 | 67,122 |
SAMAD SAMER ABDUL Executive Vice President & CFO | Award | Mar 04, 2026 | $2.9M | 13,947 | $204.86 | 40,988 |
Davis J. E. CEO and President | Award | Mar 04, 2026 | $10.6M | 51,652 | $204.86 | 168,837 |
PREVOZNIK MICHAEL E SVP & General Counsel | Award | Mar 04, 2026 | $1.5M | 7,232 | $204.86 | 44,789 |
KUPPUSAMY KARTHIK SVP, Clinical Solutions | Award | Mar 04, 2026 | $1.3M | 6,200 | $204.86 | 16,069 |
SAMAD SAMER ABDUL Executive Vice President & CFO | In Kind | Mar 04, 2026 | $1.6M | 7,720 | $204.86 | 33,268 |
DEPPE MICHAEL J SVP, Corp. Controller & CAO | Award | Mar 04, 2026 | $301,758.78 | 1,473 | $204.86 | 35,946 |
PREVOZNIK MICHAEL E SVP & General Counsel | In Kind | Mar 04, 2026 | $687,100.44 | 3,354 | $204.86 | 41,435 |
Doherty Catherine T. EVP, Regional Businesses | Award | Mar 04, 2026 | $2.3M | 11,364 | $204.86 | 78,486 |
Davis J. E. CEO and President | In Kind | Mar 04, 2026 | $5.4M | 26,414 | $204.86 | 142,423 |
KUPPUSAMY KARTHIK SVP, Clinical Solutions | Sell | Mar 04, 2026 | $538,372.08 | 2,628 | $204.86 | 13,441 |
DEPPE MICHAEL J SVP, Corp. Controller & CAO | In Kind | Mar 04, 2026 | $153,645.00 | 750 | $204.86 | 35,196 |
Doherty Catherine T. EVP, Regional Businesses | In Kind | Mar 04, 2026 | $1.2M | 5,806 | $204.86 | 72,680 |
DELANEY MARK E SVP & Chief Commercial Officer | Award | Mar 04, 2026 | $1.2M | 5,682 | $204.86 | 14,190 |
DELANEY MARK E SVP & Chief Commercial Officer | In Kind | Mar 04, 2026 | $476,504.36 | 2,326 | $204.86 | 11,864 |
Plewman Patrick SVP for Diagnostic Services | Sell | Mar 03, 2026 | $85,169.30 | 410 | $207.73 | 15,198 |
PREVOZNIK MICHAEL E SVP & General Counsel | Sell | Mar 03, 2026 | $109,265.98 | 526 | $207.73 | 37,557 |
Doherty Catherine T. EVP, Regional Businesses | Sell | Mar 03, 2026 | $131,285.36 | 632 | $207.73 | 67,122 |
SAMAD SAMER ABDUL Executive Vice President & CFO | In Kind | Mar 02, 2026 | $178,023.34 | 869 | $204.86 | 27,041 |
KUPPUSAMY KARTHIK SVP, Clinical Solutions | In Kind | Mar 02, 2026 | $41,996.30 | 205 | $204.86 | 9,869 |
DELANEY MARK E SVP & Chief Commercial Officer | In Kind | Mar 02, 2026 | $38,513.68 | 188 | $204.86 | 8,508 |
PREVOZNIK MICHAEL E SVP & General Counsel | In Kind | Mar 02, 2026 | $58,999.68 | 288 | $204.86 | 38,083 |
Davis J. E. CEO and President | In Kind | Mar 02, 2026 | $608,024.48 | 2,968 | $204.86 | 127,185 |
DEPPE MICHAEL J SVP, Corp. Controller & CAO | In Kind | Mar 02, 2026 | $18,027.68 | 88 | $204.86 | 34,473 |
Plewman Patrick SVP for Diagnostic Services | In Kind | Mar 02, 2026 | $47,117.80 | 230 | $204.86 | 15,608 |
Doherty Catherine T. EVP, Regional Businesses | In Kind | Mar 02, 2026 | $132,749.28 | 648 | $204.86 | 67,754 |
Davis J. E. CEO and President | Sell | Mar 02, 2026 | $2.1M | 10,000 | $212.52 | 117,185 |