MRKMerck & Co., Inc.Healthcare · Drug Manufacturers - Generalas of 2026-09-16
Horizon

Issued 2026-09-16 at $144.91 · now $144.91 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, MRK has typically landed between $132.37 and $162.57 — a range of −8.7% to +12.2% from the issuance price $144.91.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

4,685 overlapping 1 month windows · 2008-01-022026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.756.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($144.91) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where MRK has typically landed a month from the 2026-09-16 close of $144.91 — the range is history, not a prediction.

$132.37worst · -8.7%$162.57best · +12.2%
  • now $144.91 (+0.0%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $146.97 (+1.4%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $140.22$153.72
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $132.37$162.57
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 4,685 windows spanning 2008-01-02 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2009-02-05−29.2%−29.2%+2.2%
2009-02-09−27.3%−30.5%+0.0%
2009-02-06−26.7%−30.7%+0.0%
3 best
2008-11-20+25.2%+0.0%+25.2%
2009-03-09+25.2%+0.0%+33.4%
2008-12-01+24.2%+0.0%+24.2%

4,685 overlapping windows · 2008-01-022026-09-16 · not cherry-picked

Fundamentals iCompany financials — revenue, earnings, margins — from the newest filings shown, each carried with its date.iAs-reported figures and standard ratios from FMP, as of 2026-07-25. Revenue, net income and free cash flow can toggle annual or quarterly; margin, ROE and debt-to-equity are shown by fiscal year. We report the figures and the trend — no target price and no over/under-valued call. More on /methodology.

$323.7B
market cap
$3.55
EPS (TTM)
36.9
P/E (TTM)
2026-08-04
next earnings
Revenue$64.9B
'20'25
Net income$18.3B
'20'25
Free cash flow$12.4B
'20'25
Net margin · by yr28.1%
'20'25
ROE · by yr34.7%
'20'25
Debt / equity · by yr0.96
'20'25

Fair value — three views iIndependent reference estimates of worth (a cash-flow model, peer multiples, analyst targets), shown as separate views — not a single verdict.

iThree independent estimates of per-share value, each by a different method and each with its own assumptions: a discounted-cash-flow intrinsic value, a peer comparable (the median trailing P/E of 54 sector peers times this company's trailing EPS), and the analyst price-target consensus. They routinely disagree — that gap is the point. We show the three marks and the current price; we do not blend them into a single number or call the stock over- or under-valued. Marks as of the latest capture. More on /methodology.
now $144.91$89.64$202.39
  • DCF (intrinsic)$194.62
  • Peer P/E × EPS · sector median 27.4× · n=54$97.41
  • Analyst target · range $100.00$155.00$142.00
  • Current price · last close 2026-09-16$144.91

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~19 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
56%
+1.1%
n=18
Feb
26%
−1.4%
n=19
Mar
74%
+1.8%
n=19
Apr
58%
+0.7%
n=19
May
63%
+1.0%
n=19
Jun
63%
+2.3%
n=19
Jul
42%
−0.3%
n=19
Aug
63%
+2.8%
n=19
Sep
42%
−0.8%
n=19
Oct
44%
+0.5%
n=18
Nov
61%
+2.5%
n=18
Dec
72%
+2.0%
n=18

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$156$762026-08-13: 1 insider sale, $1.4M — Guindo Chirfi2026-08-12: 3 insider sales, $12.3M — Zachary Jennifer, DeLuca Richard R. …2026-08-11: 2 insider sales, $1.7M — DeLuca Richard R. …2026-08-10: 1 insider sale, $2.7M — DeLuca Richard R.2026-08-06: 4 insider sales, $2.8M — Guindo Chirfi, DeLuca Richard R. …2026-08-05: 6 insider sales, $9.2M — Williams David Michael, Maraldo David R. …2026-02-12: 1 insider sale, $1.2M — Guindo Chirfi2026-02-10: 1 insider sale, $1.2M — Li Dean Y2026-02-09: 4 insider sales, $15.7M — Zachary Jennifer, Guindo Chirfi …2026-02-06: 3 insider sales, $7.0M — DeLuca Richard R., Oosthuizen Johannes Jacobus, Williams David Michael2026-02-05: 1 insider sale, $2.4M — Guindo Chirfi2026-02-04: 6 insider sales, $13.2M — Litchfield Caroline, Davis Robert M, Li Dean Y, Smart Dalton E. III …2025-11-10: 1 insider sale, $616K — Downing Cristal N2025-11-03: 1 insider sale, $720K — Williams David Michael2025-11: 2 open-market sales, $1.3M2026-02: 16 open-market sales, $40.7M2026-08: 17 open-market sales, $30.0M↑ buys↓ salesdirector Guindo Chirfi — Sale on 2026-08-13, filed same daydirector Zachary Jennifer — Sale on 2026-08-12, filed 1 day after the tradeofficer DeLuca Richard R. — Sale on 2026-08-12, filed same dayofficer DeLuca Richard R. — Sale on 2026-08-12, filed same dayofficer DeLuca Richard R. — Sale on 2026-08-11, filed 1 day after the tradeofficer DeLuca Richard R. — Sale on 2026-08-11, filed 1 day after the tradeofficer DeLuca Richard R. — Sale on 2026-08-10, filed 2 days after the tradedirector Guindo Chirfi — Sale on 2026-08-06, filed 1 day after the tradeofficer DeLuca Richard R. — Sale on 2026-08-06, filed 4 days after the tradeofficer DeLuca Richard R. — Sale on 2026-08-06, filed 4 days after the tradeofficer DeLuca Richard R. — Sale on 2026-08-06, filed 4 days after the tradeofficer Williams David Michael — Sale on 2026-08-05, filed 2 days after the tradeofficer Williams David Michael — Sale on 2026-08-05, filed 2 days after the tradeofficer Maraldo David R. — Sale on 2026-08-05, filed 2 days after the tradeofficer Maraldo David R. — Sale on 2026-08-05, filed 2 days after the tradeofficer Williams David Michael — Sale on 2026-08-05, filed 2 days after the tradeofficer Maraldo David R. — Sale on 2026-08-05, filed 2 days after the tradedirector Guindo Chirfi — Sale on 2026-02-12, filed same daydirector Li Dean Y — Sale on 2026-02-10, filed same daydirector Zachary Jennifer — Sale on 2026-02-09, filed same daydirector Zachary Jennifer — Sale on 2026-02-09, filed same daydirector Zachary Jennifer — Sale on 2026-02-09, filed same daydirector Guindo Chirfi — Sale on 2026-02-09, filed same dayofficer DeLuca Richard R. — Sale on 2026-02-06, filed same dayofficer Oosthuizen Johannes Jacobus — Sale on 2026-02-06, filed same dayofficer Williams David Michael — Sale on 2026-02-06, filed same daydirector Guindo Chirfi — Sale on 2026-02-05, filed 1 day after the tradedirector Litchfield Caroline — Sale on 2026-02-04, filed 2 days after the tradedirector Davis Robert M — Sale on 2026-02-04, filed 2 days after the tradedirector Li Dean Y — Sale on 2026-02-04, filed 2 days after the tradedirector Davis Robert M — Sale on 2026-02-04, filed 2 days after the tradeofficer Smart Dalton E. III — Sale on 2026-02-04, filed 2 days after the tradeofficer Smart Dalton E. III — Sale on 2026-02-04, filed 2 days after the tradeofficer Downing Cristal N — Sale on 2025-11-10, filed 2 days after the tradeofficer Williams David Michael — Sale on 2025-11-03, filed 1 day after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-08-13Guindo ChirfidirectorSale10,000 @ $135.00$1.4M−21.5% of holding+8.4%not yet — horizon still open36,613Form 4 · filed same day
2026-08-12Zachary JenniferdirectorSale80,315 @ $133.46$10.7M−63.8% of holding+8.7%not yet — horizon still open45,509Form 4 · filed 1 day after the trade
2026-08-12DeLuca Richard R.officerSale11,099 @ $131.61$1.5M−9.1% of holding+8.7%not yet — horizon still open110,767Form 4 · filed same day
2026-08-12DeLuca Richard R.officerSale600 @ $132.04$79K−0.5% of holding+8.7%not yet — horizon still open110,167Form 4 · filed same day
2026-08-11DeLuca Richard R.officerSale7,410 @ $131.33$973K−5.5% of holding+12.0%not yet — horizon still open127,293Form 4 · filed 1 day after the trade
2026-08-11DeLuca Richard R.officerSale5,427 @ $132.35$718K−4.3% of holding+12.0%not yet — horizon still open121,866Form 4 · filed 1 day after the trade
2026-08-10DeLuca Richard R.officerSale20,784 @ $130.43$2.7M−13.4% of holding+13.4%not yet — horizon still open134,703Form 4 · filed 2 days after the trade
2026-08-06Guindo ChirfidirectorSale15,000 @ $131.00$2.0M−24.3% of holding+16.9%not yet — horizon still open46,613Form 4 · filed 1 day after the trade
2026-08-06DeLuca Richard R.officerSale4,945 @ $130.23$644K−3.1% of holding+16.9%not yet — horizon still open155,787Form 4 · filed 4 days after the trade
2026-08-06DeLuca Richard R.officerSale805 @ $131.02$105K−0.5% of holding+16.9%not yet — horizon still open160,732Form 4 · filed 4 days after the trade
2026-08-06DeLuca Richard R.officerSale300 @ $131.02$39K−0.2% of holding+16.9%not yet — horizon still open155,487Form 4 · filed 4 days after the trade
2026-08-05Williams David MichaelofficerSale34,705 @ $128.77$4.5M−52.3% of holding+18.3%not yet — horizon still open31,716Form 4 · filed 2 days after the trade
2026-08-05Williams David MichaelofficerSale13,542 @ $128.77$1.7M−29.9% of holding+18.3%not yet — horizon still open31,716Form 4 · filed 2 days after the trade
2026-08-05Maraldo David R.officerSale9,709 @ $128.72$1.2M−34.8% of holding+18.3%not yet — horizon still open18,212Form 4 · filed 2 days after the trade
2026-08-05Maraldo David R.officerSale6,311 @ $128.72$812K−25.7% of holding+18.3%not yet — horizon still open18,212Form 4 · filed 2 days after the trade
2026-08-05Williams David MichaelofficerSale4,600 @ $128.77$592K−12.7% of holding+18.3%not yet — horizon still open31,716Form 4 · filed 2 days after the trade
2026-08-05Maraldo David R.officerSale2,686 @ $128.72$346K−12.9% of holding+18.3%not yet — horizon still open18,212Form 4 · filed 2 days after the trade
2026-02-12Guindo ChirfidirectorSale10,000 @ $121.46$1.2M−14.2% of holding−0.7%+1.0%60,615Form 4 · filed same day
2026-02-10Li Dean YdirectorSale10,235 @ $117.52$1.2M−10.0% of holding+2.7%+2.9%92,035Form 4 · filed same day
2026-02-09Zachary JenniferdirectorSale56,792 @ $119.15$6.8M−45.2% of holding+1.3%+0.9%68,916Form 4 · filed same day
2026-02-09Zachary JenniferdirectorSale38,835 @ $119.15$4.6M−36.0% of holding+1.3%+0.9%68,916Form 4 · filed same day
2026-02-09Zachary JenniferdirectorSale25,946 @ $119.15$3.1M−27.4% of holding+1.3%+0.9%68,916Form 4 · filed same day
2026-02-09Guindo ChirfidirectorSale10,000 @ $118.41$1.2M−12.4% of holding+1.3%+0.9%70,615Form 4 · filed same day
2026-02-06DeLuca Richard R.officerSale37,685 @ $120.92$4.6M−19.0% of holding−2.0%−3.6%160,174Form 4 · filed same day
2026-02-06Oosthuizen Johannes JacobusofficerSale15,000 @ $121.87$1.8M−41.4% of holding−2.0%−3.6%21,197Form 4 · filed same day
2026-02-06Williams David MichaelofficerSale5,000 @ $121.91$610K−14.0% of holding−2.0%−3.6%30,838Form 4 · filed same day
2026-02-05Guindo ChirfidirectorSale20,000 @ $121.88$2.4M−19.9% of holding−2.3%−5.8%80,615Form 4 · filed 1 day after the trade
2026-02-04Litchfield CarolinedirectorSale41,997 @ $119.61$5.0M−31.8% of holding−0.1%−2.5%90,192Form 4 · filed 2 days after the trade
2026-02-04Davis Robert MdirectorSale32,462 @ $118.35$3.8M−6.8% of holding−0.1%−2.5%443,602Form 4 · filed 2 days after the trade
2026-02-04Li Dean YdirectorSale15,087 @ $118.77$1.8M−12.9% of holding−0.1%−2.5%102,270Form 4 · filed 2 days after the trade
2026-02-04Davis Robert MdirectorSale14,972 @ $117.38$1.8M−3.0% of holding−0.1%−2.5%476,064Form 4 · filed 2 days after the trade
2026-02-04Smart Dalton E. IIIofficerSale4,000 @ $119.67$479K−27.4% of holding−0.1%−2.5%10,605Form 4 · filed 2 days after the trade
2026-02-04Smart Dalton E. IIIofficerSale2,400 @ $119.67$287K−22.6% of holding−0.1%−2.5%8,205Form 4 · filed 2 days after the trade
2025-11-10Downing Cristal NofficerSale7,085 @ $87.00$616K−100.0% of holding+11.6%+23.3%0Form 4 · filed 2 days after the trade
2025-11-03Williams David MichaelofficerSale8,614 @ $83.59$720K−26.0% of holding+23.9%+31.9%24,578Form 4 · filed 1 day after the trade
2025-04-25Smart Dalton E. IIIofficerSale4,262 @ $82.76$353K−35.4% of holding−13.6%−15.9%7,778Form 4 · filed 4 days after the trade
2025-02-19Oosthuizen Johannes JacobusofficerSale8,500 @ $84.09$715K−21.7% of holding+19.4%−4.0%30,705Form 4 · filed 1 day after the trade
2025-02-13Williams David MichaelofficerSale6,000 @ $85.34$512K−19.9% of holding+20.2%−4.5%24,123Form 4 · filed same day
2025-02-06THULIN INGE GdirectorPurchase2,833 @ $88.25$250K+2832.9% of holding+15.7%−12.4%2,933Form 4 · filed 1 day after the trade
2025-02-06Downing Cristal NofficerSale2,361 @ $88.76$210K−25.0% of holding+15.7%−12.4%7,085Form 4 · filed 1 day after the trade
2025-02-05BAKER DOUGLAS M JRdirectorPurchase15,000 @ $88.50$1.3M+1500.0% of holding+10.2%−14.0%16,000Form 4 · filed 2 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

225 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

DatePersonRoleActionSharesOwned afterFiling
2026-08-12Zachary JenniferdirectorOption exercise41,494112,391Form 4
2026-08-12Zachary JenniferdirectorOption exercise13,433125,824Form 4
2026-08-12Zachary JenniferdirectorOption exercise13,4330Form 4
2026-08-12Zachary JenniferdirectorOption exercise41,4940Form 4
2026-08-05Williams David MichaelofficerOption exercise34,70566,421Form 4
2026-08-05Williams David MichaelofficerOption exercise13,54245,258Form 4
2026-08-05Maraldo David R.officerOption exercise9,70927,921Form 4
2026-08-05Maraldo David R.officerOption exercise6,31124,523Form 4
2026-08-05Williams David MichaelofficerOption exercise4,60036,316Form 4
2026-08-05Maraldo David R.officerOption exercise2,68620,898Form 4
2026-08-05Williams David MichaelofficerOption exercise4,6000Form 4
2026-08-05Maraldo David R.officerOption exercise9,7090Form 4
2026-08-05Maraldo David R.officerOption exercise6,3113,154Form 4
2026-08-05Maraldo David R.officerOption exercise2,6865,374Form 4
2026-08-05Williams David MichaelofficerOption exercise13,5420Form 4
2026-08-05Williams David MichaelofficerOption exercise34,7050Form 4
2026-06-30Coe Mary EllendirectorAward / grant23331,999Form 4
2026-06-30Karsanbhai Surendralal LancadirectorAward / grant1265,519Form 4
2026-06-30Seidman Christine EdirectorAward / grant6321,291Form 4
2026-05-29LAVIZZO-MOUREY RISA JdirectorAward / grant1,85317,749Form 4
2026-05-29Mayo StephendirectorAward / grant1,85314,825Form 4
2026-05-29Rothman PauldirectorAward / grant1,85334,945Form 4
2026-05-29RUSSO PATRICIA FdirectorAward / grant1,85362,391Form 4
2026-05-29Seidman Christine EdirectorAward / grant1,85321,228Form 4
2026-05-29GLOCER THOMAS HdirectorAward / grant1,853110,912Form 4
2026-05-29Warden Kathy JdirectorAward / grant1,85317,890Form 4
2026-05-29Craig Pamela J.directorAward / grant1,85334,945Form 4
2026-05-29Coe Mary EllendirectorAward / grant1,85331,766Form 4
2026-05-29BAKER DOUGLAS M JRdirectorAward / grant1,85311,518Form 4
2026-05-29THULIN INGE GdirectorAward / grant1,85327,470Form 4
2026-05-29Karsanbhai Surendralal LancadirectorAward / grant1,8535,392Form 4
2026-05-05Li Dean YdirectorAward / grant19,88519,885Form 4
2026-05-05Guindo ChirfidirectorAward / grant19,40219,402Form 4
2026-05-05Litchfield CarolinedirectorAward / grant15,90815,908Form 4
2026-05-05Litchfield CarolinedirectorAward / grant46,56646,566Form 4
2026-05-05Li Dean YdirectorAward / grant58,20758,207Form 4
2026-05-05Larson Betty DofficerAward / grant23,28323,283Form 4
2026-05-05Larson Betty DofficerAward / grant7,9547,954Form 4
2026-05-05Davis Robert MdirectorAward / grant47,72447,724Form 4
2026-05-05Davis Robert MdirectorAward / grant139,697139,697Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures iStock trades disclosed by members of Congress for this company, by the date they were filed.iDisclosures shown as facts. A purchase “cluster” (≥2 members of Congress filing a buy within 90 days) has historically preceded modestly higher forward returns — and it persisted out-of-sample, though it roughly halved after 2021 (see below). A descriptive historical tendency, not a signal to trade and not used in our forecast. See /methodology.

As of 2026-09-16 · point-in-time by filed date

Purchase clusters · 2015–2021 (dev)+45 bp/mo vs baseline · up-rate 59.3% vs 57.3% · n=31,607 cluster ticker-weeks
Purchase clusters · 2022–2026 (out-of-sample)+32 bp/mo vs baseline · up-rate 54.0% vs 53.3% · n=27,793

A cluster = ≥2 members of Congress filing a purchase within 90 days. The historical tilt persisted after 2021 but roughly halved (+45 → +32 bp/mo forward 1-month vs the S&P 500 weekly-grid baseline). Descriptive historical tendency — not a signal to trade, and not used in our forecast (audition-log 2026-07-27, recomputed 2026-09-08).

'23 Q'24 Q'24 Q'24 Q'24 Q'25 Q'25 Q'25 Q'25 Q'26 Q'26 Q'26 Qpurchases ▲ / sales ▼ ($ vol)
MemberChamberTypeFiledTradedSize
Alan ArmstrongSenatesale2026-07-212026-03-27$15–50K
Ro KhannaHousepurchase2026-07-062026-06-16$1–15K
Ro KhannaHousepurchase2026-07-062026-06-02$1–15K
Ro KhannaHousesale2026-06-092026-05-15$15–50K
Ro KhannaHousepurchase2026-04-072026-03-10$15–50K
Josh GottheimerHousepurchase2026-03-162026-02-04$1–15K
Michael T. McCaulHousesale2026-02-112026-01-13$15–50K
Julie JohnsonHousesale2026-01-152025-12-18$1–15K
Gilbert CisnerosHousepurchase2026-01-122025-12-19$1–15K
Gilbert CisnerosHousepurchase2025-12-152025-11-18$1–15K
Julie JohnsonHousesale2025-12-112025-11-13$1–15K
Michael T. McCaulHousesale2025-11-102025-10-27$15–50K
Valerie HoyleHousesale2025-10-102025-09-23$1–15K
Sheri BiggsHousesale2025-10-052025-03-19$15–50K

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.