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Insider · CIK 0001127304

Gary M Pfeiffer

director

Files at DGX (QUEST DIAGNOSTICS INC). First filing Oct 24, 2025, latest Oct 24, 2025.

In brief

Gary M Pfeiffer files SEC Form 4 as director at DGX (QUEST DIAGNOSTICS INC). Since Oct 24, 2025, Gary M Pfeiffer has reported 0 open-market buys worth $0 and 1 open-market sell worth $270k, the latest filed on Oct 24, 2025.

A track record needs three past buys with six months of prices behind them; Gary M Pfeiffer has 0, so none is measured yet.

The newest scored trade: sold $270k of DGX on Oct 22, 2025, filed Oct 24, 2025, scored 28 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $270k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $270k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

DGX: QUEST DIAGNOSTICS INC

DGXOct 9, 2026 · close 230.97

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
28Weak
DGXsell
QUEST DIAGNOSTICS INC
$270k
1,482 shares
-5%+22% from low-5% from high

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Oct 22, 2025 DGX
QUEST DIAGNOSTICS INC
1,482
0.00% of outstanding
$270kOct 22, 2025none

Transactions

Every row this insider has filed, 4 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
May 20, 2026DGX
QUEST DIAGNOSTICS INC
AGrant or award
Common Stock
+1,142$0.00$031,005May 21, 2026
Oct 22, 2025DGX
QUEST DIAGNOSTICS INC
SOpen-market sale
Common Stock
-1,482$182.40$270k29,431Oct 24, 2025
Oct 23, 2025DGX
QUEST DIAGNOSTICS INC
IDiscretionary transaction
Phantom Stockderivative
-4,413$190.58$841k0Oct 24, 2025
May 15, 2025DGX
QUEST DIAGNOSTICS INC
AGrant or award
Common Stock
+1,203$0.00$030,669May 19, 2025

Questions about Gary M Pfeiffer

Answered from the filings on this page, as of the latest one.

Is Gary M Pfeiffer buying or selling?

In the last 12 months Gary M Pfeiffer reported 0 open-market buys worth $0 and 1 open-market sell worth $270k on SEC Form 4; the latest was sold $270k of DGX on Oct 22, 2025. Grants, option exercises and tax withholding are not counted.

How did Gary M Pfeiffer's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Gary M Pfeiffer has 0.

Where does Gary M Pfeiffer file Form 4?

Gary M Pfeiffer has filed Form 4 at DGX (QUEST DIAGNOSTICS INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.