Who
Gary M. Pfeiffer
Director
Company insider
Files Form 4 as: Director, Quest Diagnostics; Director, Internap; Director, TerraVia Holdings; Director, Talbots; Senior Vice President & CFO, Dupont E I De Nemours & Co.
In numbers
- Trades disclosed
- 145
- Buys
- 1
- Sells
- 9
- Bought
- $66K
- Sold
- $7.2M
- Companies
- 5
- Companies where not an officer
- 4
- First trade
- 1 Jan 2006
- Last trade
- 26 Oct 2026
- Last filed
- 28 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 26 Oct 2026filed 28 Oct 2026 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Sold | $292K1,203 at $243.00 | filing |
| 20 May 2026filed 21 May 2026 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,142 at $0.00 | filing |
| 20 May 2026filed 21 May 2026 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,142 at $0.00 | filing |
| 23 Oct 2025filed 24 Oct 2025 | DGX Quest Diagnosticsoption or derivative · Diagnostics & Labs | SEC FORM 4 Code I | $841K4,413.28 at $190.58 | filing |
| 22 Oct 2025filed 24 Oct 2025 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Sold | $270K1,482 at $182.40 | filing |
| 15 May 2025filed 19 May 2025 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,203 at $0.00 | filing |
| 16 May 2024filed 20 May 2024 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,482 at $0.00 | filing |
| 17 May 2023filed 19 May 2023 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,369 at $0.00 | filing |
| 18 May 2022filed 20 May 2022 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,292 at $0.00 | filing |
| 25 May 2021filed 25 May 2021 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,363 at $0.00 | filing |
| 19 May 2020filed 21 May 2020 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,531 at $0.00 | filing |
| 8 May 2020filed 8 May 2020 | Internapoption or derivative | SEC FORM 4 Code J | —4,072 at $0.00 | filing |
| 8 May 2020filed 8 May 2020 | Internap | SEC FORM 4 Code J | —80,695 at $0.00 | filing |
| 6 Jun 2019filed 10 Jun 2019 | Internap | SEC FORM 4 Code A | —26,726 at $0.00 | filing |
| 14 May 2019filed 16 May 2019 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,722 at $0.00 | filing |
| 12 Nov 2018filed 14 Nov 2018 | Internap | SEC FORM 4 Bought | $66K10,000 at $6.56 | filing |
| 30 Sep 2018filed 2 Oct 2018 | Internap | SEC FORM 4 Code A | —1,819 at $0.00 | filing |
| 30 Jun 2018filed 3 Jul 2018 | Internap | SEC FORM 4 Code A | —1,316 at $0.00 | filing |
| 7 Jun 2018filed 11 Jun 2018 | Internap | SEC FORM 4 Code A | —9,557 at $0.00 | filing |
| 15 May 2018filed 17 May 2018 | DGX Quest DiagnosticsDiagnostics & Labs | SEC FORM 4 Code A | —1,644 at $0.00 | filing |
News
Quest Diagnostics (NYSE:DGX) Releases Earnings Results, Beats Expectations By $0.13 EPSDGX · themarketsdaily.com · 22 Oct 2026Quest Diagnostics (NYSE: DGX) lifts guidance after revenue jumps 10%DGX · dailypolitical.com · 22 Oct 2026Quest Diagnostics Incorporated $DGX Stock Sold by Willis Investment CounselDGX · dailypolitical.com · 20 Oct 2026
0 headlines in the last 90 days name Gary M. Pfeiffer; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.