Security key
74834L100
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 104,888,080
- Total 13F value
- $22,203,638,932
- Share change
- +2,176,062
- Put/Call ratio
- 68%
- SEC-reported price per share
- $211.95
- Number of holders
- 1,104
- Value change
- +$467,250,307
- Number of buys
- 534
- Number of sells
- 426
- Shares outstanding
- 110,780,490
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
1,104
Top holders
10
DGX full security history
Ownership snapshot
Full 13F holder table
QUEST DIAGNOSTICS INC SEC filings
QUEST DIAGNOSTICS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of DGX - QUEST DIAGNOSTICS INC - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
20 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 8.4%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 8.4%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
8.4%
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.5%
PRICE T ROWE ASSOCIATES INC /MD/
4.9%
Gary M. Pfeiffer
0.03%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
8.4%
from 13D/G
|
$1,797,585,732
9,172,292 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$1,621,649,641
8,274,567 shares
|
$0 | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.5%
|
$1,194,817,351
6,096,629 shares
|
$0 | 31 Mar 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
13D/G
Company · T. Rowe Price Associates, Inc.
|
4.9%
from 13D/G
|
$1,234,281,000
6,297,987 shares
|
— | 31 Mar 2026 |
| Gary M. Pfeiffer |
3/4/5
Director
|
0.03%
|
$6,076,359
31,005 shares
|
-$270,317 | 20 May 2026 |
| Denise M. Morrison |
3/4/5
Director
|
0.01%
|
$2,337,845
11,929 shares
|
— | 20 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1,104
Shares
104,888,080
Rows available
1,104
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1,068
Q2 2026 holders
1,104
Holder diff
36
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|