QTRXQuanterix CorporationHealthcare · Medical - Devicesas of 2026-09-16
Horizon

Issued 2026-09-16 at $2.91 · now $2.91 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, QTRX has typically landed between $2.02 and $3.79 — a range of −30.7% to +30.2% from the issuance price $2.91.

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

2,183 overlapping 1 month windows · 2017-12-072026-08-17 · 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 ($2.91) — 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 QTRX has typically landed a month from the 2026-09-16 close of $2.91 — the range is history, not a prediction.

$2.02worst · -30.7%$3.79best · +30.2%
  • now $2.91 (+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). $2.78 (-4.4%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $2.41$3.16
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $2.02$3.79
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 2,183 windows spanning 2017-12-07 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
2020-02-18−59.8%−59.8%+3.5%
2022-07-11−58.5%−58.5%+7.3%
2022-07-12−52.9%−58.9%+6.1%
3 best
2020-03-18+112.2%+0.0%+112.2%
2020-03-25+82.7%+0.0%+82.7%
2020-12-18+82.5%+0.0%+82.5%

2,183 overlapping windows · 2017-12-072026-09-16 · not cherry-picked

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 ~9 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
44%
+0.7%
n=9
Feb
67%
+0.2%
n=9
Mar
22%
−14.4%
n=9
Apr
33%
−3.5%
n=9
May
44%
+3.2%
n=9
Jun
56%
+9.6%
n=9
Jul
44%
−0.5%
n=9
Aug
33%
−9.9%
n=9
Sep
56%
+5.6%
n=9
Oct
50%
−4.0%
n=8
Nov
75%
+10.6%
n=8
Dec
50%
−0.4%
n=8

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$8$22026-08-13: 1 insider purchase, $212K — DONNELLY WILLIAM P2026-08-12: 1 insider purchase, $75K — DONNELLY WILLIAM P2026-05-12: 1 insider purchase, $10K — Meadows Benjamin2025-09-12: 1 insider purchase, $20K — Sriram Vandana2025-09: 1 open-market purchase, $20K2026-05: 1 open-market purchase, $10K2026-08: 2 open-market purchases, $286K↑ buys↓ salesdirector DONNELLY WILLIAM P — Purchase on 2026-08-13, filed 1 day after the tradedirector DONNELLY WILLIAM P — Purchase on 2026-08-12, filed 2 days after the tradeofficer Meadows Benjamin — Purchase on 2026-05-12, filed 31 days after the tradeofficer Sriram Vandana — Purchase on 2025-09-12, filed 5 days after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-08-13DONNELLY WILLIAM PdirectorPurchase72,245 @ $2.93$212K+266.0% of holding−10.4%not yet — horizon still open99,400Form 4 · filed 1 day after the trade
2026-08-12DONNELLY WILLIAM PdirectorPurchase27,155 @ $2.75$75Kownership Δ n/a−11.6%not yet — horizon still open27,155Form 4 · filed 2 days after the trade
2026-05-12Meadows BenjaminofficerPurchase3,500 @ $2.77$10Kownership Δ n/a+4.2%not yet — horizon still open3,500Form 4 · filed 31 days after the trade
2025-09-12Sriram VandanaofficerPurchase4,150 @ $4.79$20K+5.0% of holding+21.1%−4.4%87,200Form 4 · filed 5 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.

296 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
2026-09-15Miller Michael FrancisofficerWithheld for tax24938,452Form 4
2026-09-15Miller Michael FrancisofficerWithheld for tax11137,867Form 4
2026-09-15Miller Michael FrancisofficerWithheld for tax4137,512Form 4
2026-09-15Miller Michael FrancisofficerWithheld for tax4137,606Form 4
2026-09-15Miller Michael FrancisofficerWithheld for tax2537,417Form 4
2026-09-15Miller Michael FrancisofficerOption exercise83424,189Form 4
2026-09-15Miller Michael FrancisofficerOption exercise81436Form 4
2026-09-15Miller Michael FrancisofficerOption exercise136845Form 4
2026-09-15Miller Michael FrancisofficerOption exercise1352,306Form 4
2026-09-15Miller Michael FrancisofficerOption exercise3727,457Form 4
2026-09-15Miller Michael FrancisofficerOption exercise83438,701Form 4
2026-09-15Miller Michael FrancisofficerOption exercise83438,701Form 4
2026-09-15Miller Michael FrancisofficerOption exercise13637,553Form 4
2026-09-15Miller Michael FrancisofficerOption exercise37237,978Form 4
2026-09-15Miller Michael FrancisofficerOption exercise37237,978Form 4
2026-09-15Miller Michael FrancisofficerOption exercise8137,442Form 4
2026-09-15Miller Michael FrancisofficerOption exercise13537,647Form 4
2026-09-15Miller Michael FrancisofficerOption exercise8137,442Form 4
2026-09-15Miller Michael FrancisofficerOption exercise13537,647Form 4
2026-09-15Miller Michael FrancisofficerOption exercise13637,553Form 4
2026-08-31Miller Michael FrancisofficerWithheld for tax4837,361Form 4
2026-08-31Miller Michael FrancisofficerOption exercise1590Form 4
2026-08-31Miller Michael FrancisofficerOption exercise15937,409Form 4
2026-08-31Miller Michael FrancisofficerOption exercise15937,409Form 4
2026-08-31Miller Michael FrancisofficerOption exercise15937,409Form 4
2026-08-31Miller Michael FrancisofficerOption exercise15937,409Form 4
2026-08-19Elliott Jeffrey ThomasdirectorOption exercise3,9554,075Form 4
2026-08-19Elliott Jeffrey ThomasdirectorOption exercise3,95515,345Form 4
2026-08-19Elliott Jeffrey ThomasdirectorOption exercise3,95515,345Form 4
2026-08-19Elliott Jeffrey ThomasdirectorOption exercise3,95515,345Form 4
2026-08-19Elliott Jeffrey ThomasdirectorOption exercise3,95515,345Form 4
2026-08-17DONNELLY WILLIAM PdirectorOption exercise2,8020Form 4
2026-08-17DONNELLY WILLIAM PdirectorOption exercise2,802162,401Form 4
2026-08-17DONNELLY WILLIAM PdirectorOption exercise2,802162,401Form 4
2026-08-17DONNELLY WILLIAM PdirectorOption exercise2,802162,401Form 4
2026-08-17DONNELLY WILLIAM PdirectorOption exercise2,802162,401Form 4
2026-08-15Miller Michael FrancisofficerWithheld for tax24937,250Form 4
2026-08-15Miller Michael FrancisofficerWithheld for tax11136,665Form 4
2026-08-15Miller Michael FrancisofficerWithheld for tax4136,310Form 4
2026-08-15Miller Michael FrancisofficerWithheld for tax4136,404Form 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

No congressional trades disclosed for this company.

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