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MD

Mark E. Delaney

DGX
SVP & CHIEF COMMERCIAL OFFICER · QUEST DIAGNOSTICS INC · CIK 0001955265
FILING MIX · LIFETIME53%/47%
BUYS
21
SELLS
19
TOTAL VALUE
$7.83M
COMPANIES
1
ACTIVE SINCE
Feb 2023
HOLDINGS NOW
10,335
AVG SELL PX
$174.70
TRADE KIND
SHOWING 40 / 40
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 5 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark E. Delaney, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d5+40.00%+1.15%+1.39%-0.24%-0.17%—
14d5+60.00%+0.50%+0.53%-0.03%-1.20%—
30d5+20.00%+2.29%+1.54%+0.75%-0.27%—
60d5+60.00%+0.16%+1.47%-1.30%-2.53%—
90d5+0.00%+6.15%+4.35%+1.80%+1.31%—
180d5+0.00%+3.81%+12.12%-8.31%-10.49%—
1y5(1 pending)+0.00%+13.39%+20.98%-7.59%-8.00%—
2y5(4 pending)+0.00%+46.40%+36.39%+10.01%+10.01%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
DGX · 10,335 shares · as of Jul 28, 2026
03,8697,73811,60715,476202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 21 buys / 19 sellsCOVERAGE · 15 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
1,600$235.18$376.3K10,335Jul 28, 2026Jul 29, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
34$206.81$7.0K11,935Jul 22, 2026Jul 27, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
37$194.70$7.2K11,901Apr 20, 2026Apr 24, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
2,326$204.86$476.5K11,864Mar 4, 2026Mar 6, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
5,682$204.86$1.16M14,190Mar 4, 2026Mar 6, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
188$204.86$38.5K8,508Mar 2, 2026Mar 4, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
230$206.99$47.6K8,681Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
205$210.01$43.1K8,911Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
7,332——7,332Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
1,586——9,116Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
15$183.51$2.8K8,696Jan 28, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
7,946$187.35$1.49M7,530Nov 18, 2025Nov 20, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
100$143.33$14.3K15,476Nov 18, 2025Nov 20, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
7,846$144.47$1.13M0Nov 18, 2025Nov 20, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
100$143.33$14.3K7,484Nov 18, 2025Nov 20, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
7,846$144.47$1.13M15,376Nov 18, 2025Nov 20, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
15$189.08$2.8K7,530Oct 21, 2025Oct 24, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
17$167.49$2.8K7,515Jul 21, 2025Jul 25, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
874$175.31$153.2K7,498May 13, 2025May 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
874$175.72$153.6K8,372May 12, 2025May 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
25$164.42$4.1K9,246Apr 21, 2025May 2, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
256$166.71$42.7K9,221Mar 26, 2025Mar 28, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
5,317$173.74$923.8K11,300Mar 4, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
1,823$173.74$316.7K9,477Mar 4, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
214$171.75$36.8K5,983Feb 26, 2025Feb 28, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
242$169.71$41.1K6,197Feb 19, 2025Feb 21, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
6,960——6,960Feb 12, 2025Feb 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
1,815——6,439Feb 12, 2025Feb 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
403$164.30$66.2K4,624Feb 5, 2025Feb 7, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
4$158.03$6325,027Jan 29, 2025Jan 31, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
4$149.39$5985,023Oct 21, 2024Oct 25, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
420$143.08$60.1K5,019Jul 24, 2024Jul 26, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP & Chief Commercial Officer
6$146.98$8825,439Jul 22, 2024Jul 26, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
170$128.11$21.8K5,433Mar 26, 2024Mar 28, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
225$126.36$28.4K5,603Feb 28, 2024Mar 1, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
9,783——9,783Feb 14, 2024Feb 16, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
2,348——5,828Feb 14, 2024Feb 16, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP & Chief Commercial Officer
170$134.25$22.8K3,480Mar 24, 2023Mar 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
7,584——7,584Feb 23, 2023Feb 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
1,919——3,650Feb 23, 2023Feb 27, 2023 ↗View →
Other insiders · DGX
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About this filer
CIK 0001955265
ROLE
SVP & Chief Commercial Officer
PRIMARY
DGX
COMPANIES
1
ACTIVE SINCE
Feb 2023
MARKETPEEL · /INSIDER/0001955265DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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