Free Trial
→ $100 Trillion “AI Metal” Found in American Ghost Town (From Brownstone Research) (Ad)tc pixel Free DGX Stock Alerts

Quest Diagnostics (DGX) SEC Filings & 10K Form

Quest Diagnostics logo
$181.81 +2.61 (+1.46%)
Closing price 08/29/2025 03:59 PM Eastern
Extended Trading
$181.67 -0.14 (-0.08%)
As of 08/29/2025 07:50 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
Compare

Recent Quest Diagnostics SEC Filings

Export to Excel
DateFilerForm TypeView
08/25/2025
3:27 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/21/2025
3:34 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/21/2025
11:10 AM		Plewman Patrick (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/15/2025
4:22 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/15/2025
4:25 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/15/2025
4:29 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/08/2025
3:40 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
08/06/2025
12:54 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
07/31/2025
1:27 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
07/25/2025
3:25 PM		CARTER ROBERT B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:26 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:26 PM		Gregg Vicky B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:27 PM		Lassiter Wright III (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:28 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:28 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/25/2025
3:29 PM		Quest Diagnostics (Issuer)
SAMAD SAM (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/22/2025
5:48 AM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/17/2025
3:26 PM		Quest Diagnostics (Issuer)
SAMAD SAM (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/20/2025
3:20 PM		Quest Diagnostics (Filer)
Form 11-K
Annual reports of employee stock purchase, savings and similar plans pursuant to Section 15(d)  
05/22/2025
5:28 AM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/19/2025
3:20 PM		PFEIFFER GARY M (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:21 PM		Quest Diagnostics (Issuer)
RING TIMOTHY M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:21 PM		Lassiter Wright III (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:22 PM		MORRISON DENISE M (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:22 PM		MAIN TIMOTHY L (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:23 PM		Doi Tracey (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:23 PM		Gregg Vicky B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:24 PM		Diaz Luis (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:24 PM		CARTER ROBERT B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2025
4:12 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2025
9:45 AM		PRICE T ROWE ASSOCIATES INC /MD/ (Filed by)
Quest Diagnostics (Subject)
Form SCHEDULE 13G
05/13/2025
8:59 AM		DELANEY MARK E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/12/2025
9:01 AM		DELANEY MARK E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/02/2025
3:30 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/02/2025
3:31 PM		Gregg Vicky B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/02/2025
3:32 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/02/2025
3:32 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
05/02/2025
3:33 PM		Quest Diagnostics (Issuer)
SAMAD SAM (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
04/22/2025
5:44 AM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/11/2025
3:25 PM		Quest Diagnostics (Filer)
Form DEFA14A
04/04/2025
7:29 PM		Davis J. E. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
Musk’s Project Colossus could mint millionaires (Ad)

I predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new millionaires than any tech advance in history. And for a limited time, you have the chance to claim a stake in this project, even though it’s housed inside Elon’s private company, xAI.tc pixel

All the details are waiting for you now — but you need to act before the September 1st funding windo
04/04/2025
7:26 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/04/2025
3:37 PM		Quest Diagnostics (Filer)
Form DEF 14A
04/04/2025
3:39 PM		Quest Diagnostics (Filer)
Form DEFA14A
04/03/2025
3:40 PM		Lassiter Wright III (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
04/02/2025
9:20 AM		Davis J. E. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/02/2025
8:50 AM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/19/2025
8:00 PM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/19/2025
3:32 PM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/19/2025
7:31 AM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/17/2025
9:15 AM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/07/2025
6:23 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
8:59 AM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2025
9:20 AM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2025
8:58 AM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/28/2025
3:33 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/28/2025
3:34 PM		DEPPE MICHAEL J (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/28/2025
3:35 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/28/2025
3:36 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/28/2025
3:37 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/27/2025
9:41 AM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/27/2025
9:52 AM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/21/2025
3:36 PM		Davis J. E. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:37 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:39 PM		DEPPE MICHAEL J (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:41 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:42 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:43 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:44 PM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/21/2025
3:45 PM		Quest Diagnostics (Issuer)
SAMAD SAM (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2025
3:30 PM		Quest Diagnostics (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/20/2025
8:56 AM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/20/2025
9:01 AM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/14/2025
4:26 PM		DEPPE MICHAEL J (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:26 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:27 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:28 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:28 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:29 PM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:29 PM		Quest Diagnostics (Issuer)
SAMAD SAM (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
02/14/2025
4:30 PM		Davis J. E. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/07/2025
3:36 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/07/2025
3:37 PM		Gregg Vicky B (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
02/05/2025
4:06 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/05/2025
3:00 PM		Gregg Vicky B (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/31/2025
3:28 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/31/2025
3:29 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/31/2025
12:12 PM		DELANEY MARK E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/30/2025
5:47 AM		Quest Diagnostics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/06/2025
3:48 PM		Lassiter Wright III (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2025
3:49 PM		Quest Diagnostics (Issuer)
RING TIMOTHY M (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
INVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting Off (Ad)

Right now, we’re witnessing a monumental shift in the world.tc pixel

Our No. 1 AI Pick is currently trading for pennies on the dollar compared to Nividia.
12/02/2024
3:41 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
12/02/2024
3:43 PM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
11/29/2024
1:42 PM		PREVOZNIK MICHAEL E (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/27/2024
3:12 PM		Doherty Catherine T. (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/07/2024
4:21 PM		DEPPE MICHAEL J (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/30/2024
3:26 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/28/2024
11:51 AM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/25/2024
3:25 PM		Plewman Patrick (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
10/25/2024
3:25 PM		KUPPUSAMY KARTHIK (Reporting)
Quest Diagnostics (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)


Related Companies and Tools

Related Companies
SEC Filings Tools

This page (NYSE:DGX) was last updated on 8/31/2025 by MarketBeat.com Staff
From Our Partners
INVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting Off
Right now, we’re witnessing a monumental shift in the world.
Traders Agency | Sponsoredtc pixel
BONUS GUIDE - Ben Stein Prepares For the Next Financial Crisis
With inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist ...
Goldco Precious Metals | Sponsoredtc pixel
This is my Christian duty
“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...
Paradigm Press | Sponsoredtc pixel
Everyone’s watching Nvidia right now. Here’s why I’m excited.
So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...
Timothy Sykes | Sponsoredtc pixel
Alex’s “Next Magnificent Seven” stocks
The original “Magnificent Seven” turned $7K into $1.18 million. Now, Alex Green has identified AI’s Next Ma...
The Oxford Club | Sponsoredtc pixel
Elon’s Secret Social Security Bombshell
To All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...
Banyan Hill Publishing | Sponsoredtc pixel
Out of 18,347 Cryptocurrencies... This is the ONLY One
The Single Most Undervalued DeFi Protocol You've Never Heard Of If there's one cryptocurrency you should b...
Crypto 101 Media | Sponsoredtc pixel
Trump set to Boost Social Security Checks by 400%?
If you're collecting or planning to collect social security... You should see this presentation about Presi...
InvestorPlace | Sponsoredtc pixel