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Insider Trading Intelligence
Pricing
…
CD

Catherine T. Doherty

DGX
SVP, GROUP EXEC. CLIN. FRAN. · QUEST DIAGNOSTICS INC · CIK 0001520897
FILING MIX · LIFETIME28%/72%
BUYS
26
SELLS
66
TOTAL VALUE
$88.67M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
67,122
AVG SELL PX
$124.66
TRADE KIND
SHOWING 92 / 92
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
37 backtested trades · 8 horizons · 31 pending
Forward-return performance of every backtestable P/S trade by Catherine T. Doherty, 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
7d37+59.46%-0.99%-1.04%+0.05%+0.68%0.11
14d37+48.65%-0.94%-1.85%+0.91%+1.28%1.36
30d37+56.76%-1.38%-2.29%+0.91%+0.82%0.99
60d37+62.16%-1.27%-1.30%+0.03%-2.48%0.02
90d37+56.76%-1.14%+2.04%-2.91%-1.62%-1.71
180d37(8 pending)+37.93%+2.82%+5.60%-2.78%-2.92%—
1y37(8 pending)+37.93%+11.15%+13.56%-2.42%+4.29%—
2y37(15 pending)+36.36%+17.16%+29.68%-12.51%-14.33%—
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 · 67,122 shares · as of Mar 5, 2026
031,70163,40295,102126,803202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 26 buys / 66 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
5,558$206.21$1.15M67,122Mar 5, 2026Mar 6, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
5,806$204.86$1.19M72,680Mar 4, 2026Mar 6, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
11,364$204.86$2.33M78,486Mar 4, 2026Mar 6, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
632$207.73$131.3K67,122Mar 3, 2026Mar 4, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
648$204.86$132.7K67,754Mar 2, 2026Mar 4, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
1,433$204.83$293.5K68,402Feb 19, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
2,928——70,996Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
433$210.01$90.9K70,563Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
13,514——13,514Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
728$206.99$150.7K69,835Feb 18, 2026Feb 20, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
10,122$206.37$2.09M73,538Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
10,573$205.21$2.17M83,660Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
EVP, Regional Businesses
26,165$112.17$2.93M94,233Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
351$209.10$73.4K68,068Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
1,619$208.21$337.1K68,419Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
3,500$207.08$724.8K70,038Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
26,165$112.17$2.93M0Feb 13, 2026Feb 17, 2026 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
5,370$174.13$935.1K68,068Mar 5, 2025Mar 7, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
5,010$173.74$870.4K73,438Mar 4, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
716$175.79$125.9K68,068Mar 4, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
10,380$173.74$1.80M78,448Mar 4, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
394$173.74$68.5K68,784Mar 3, 2025Mar 5, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
824$172.61$142.2K69,178Feb 27, 2025Feb 28, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
455$171.75$78.1K70,002Feb 26, 2025Feb 28, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
899$170.99$153.7K70,457Feb 20, 2025Feb 21, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
535$169.71$90.8K71,356Feb 19, 2025Feb 21, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
3,479——71,891Feb 12, 2025Feb 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
13,344——13,344Feb 12, 2025Feb 14, 2025 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
33,103$103.57$3.43M0Nov 27, 2024Nov 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
4,803$162.14$778.8K96,712Nov 27, 2024Nov 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
28,300$163.13$4.62M68,412Nov 27, 2024Nov 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
EVP, Regional Businesses
33,103$103.57$3.43M101,515Nov 27, 2024Nov 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
1,187$125.88$149.4K68,412Feb 29, 2024Mar 1, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
644$126.36$81.4K75,713Feb 28, 2024Mar 1, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
5,557$126.57$703.3K69,599Feb 28, 2024Mar 1, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
557$126.36$70.4K75,156Feb 28, 2024Mar 1, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
3,757$125.02$469.7K76,357Feb 23, 2024Feb 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
9,314$125.02$1.16M80,114Feb 23, 2024Feb 27, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE10b5-1
10b5-1 plan
821$126.14$103.6K70,800Feb 22, 2024Feb 23, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
EVP, Regional Businesses
493$125.02$61.6K71,621Feb 21, 2024Feb 23, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
4,304——72,114Feb 14, 2024Feb 16, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
17,939——17,939Feb 14, 2024Feb 16, 2024 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
5,307$140.55$745.9K67,810Mar 7, 2023Mar 8, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
9,917$147.86$1.47M77,727Mar 6, 2023Mar 8, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
4,610$147.86$681.6K73,117Mar 6, 2023Mar 8, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
717$140.63$100.8K67,810Mar 3, 2023Mar 6, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
392$140.69$55.2K68,527Mar 1, 2023Mar 3, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
15,167——15,167Feb 27, 2023Feb 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
1,690$141.42$239.0K68,919Feb 24, 2023Feb 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
3,838——70,609Feb 23, 2023Feb 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
962$147.86$142.2K66,771Feb 23, 2023Feb 27, 2023 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP, Regional Businesses
40,765$86.63$3.53M108,498Nov 28, 2022Nov 29, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
23,407$149.37$3.50M67,733Nov 28, 2022Nov 29, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
40,765$86.63$3.53M0Nov 28, 2022Nov 29, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Regional Businesses
17,358$148.92$2.58M91,140Nov 28, 2022Nov 29, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
7,032$135.21$950.8K67,733Mar 8, 2022Mar 9, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
6,360$130.09$827.4K74,765Mar 7, 2022Mar 9, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
13,392$130.09$1.74M81,125Mar 7, 2022Mar 9, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
16,155——16,155Feb 24, 2022Feb 28, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
2,750$126.26$347.2K64,405Feb 24, 2022Feb 28, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
3,328——67,733Feb 24, 2022Feb 28, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
1,082$130.09$140.8K67,647Feb 23, 2022Feb 25, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
492$130.23$64.1K67,155Feb 23, 2022Feb 25, 2022 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
37,565$95.80$3.60M0Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
3,250$154.79$503.1K102,744Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
300$153.38$46.0K105,994Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
3,532$155.77$550.2K99,212Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP, Group Exec. Clin. Fran.
37,565$95.80$3.60M106,294Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
15,908$156.86$2.50M83,304Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
14,575$157.53$2.30M68,729Nov 29, 2021Dec 1, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
8,536$139.96$1.19M68,729May 7, 2021May 11, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
11,299$115.42$1.30M82,331Mar 9, 2021Mar 11, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
5,066$115.42$584.7K77,265Mar 9, 2021Mar 11, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
524$121.19$63.5K71,032Feb 24, 2021Feb 25, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
796$121.15$96.4K71,556Feb 23, 2021Feb 25, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
3,941——72,352Feb 17, 2021Feb 19, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
22,105——22,105Feb 17, 2021Feb 19, 2021 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
54,616$110.57$6.04M72,187Sep 2, 2020Sep 4, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
3,776$111.13$419.6K68,411Sep 2, 2020Sep 4, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASE
SVP, Group Exec. Clin. Fran.
58,392$66.51$3.88M126,803Sep 2, 2020Sep 4, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
58,392$66.51$3.88M0Sep 2, 2020Sep 4, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
2,501$104.25$260.7K68,411Mar 11, 2020Mar 12, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
2,517$106.46$268.0K70,912Mar 10, 2020Mar 12, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
5,018$106.46$534.2K73,429Mar 10, 2020Mar 12, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
789$109.02$86.0K68,411Feb 27, 2020Feb 28, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
777$112.90$87.7K69,200Feb 26, 2020Feb 28, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
368$111.09$40.9K69,977Feb 26, 2020Feb 28, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
405$112.73$45.7K70,701Feb 25, 2020Feb 26, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
356$113.34$40.3K70,345Feb 25, 2020Feb 26, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
SALE
SVP, Group Exec. Clin. Fran.
432$112.17$48.5K71,106Feb 24, 2020Feb 26, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
26,165——26,165Feb 18, 2020Feb 20, 2020 ↗View →
DGX
QUEST DIAGNOSTICS INC
PURCHASEGRANT
Stock grant
4,012——71,538Feb 18, 2020Feb 20, 2020 ↗View →
Other insiders · DGX
Loading peer insiders…
About this filer
CIK 0001520897
ROLE
SVP, Group Exec. Clin. Fran.
PRIMARY
DGX
COMPANIES
1
ACTIVE SINCE
Feb 2020
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