ETONEton Pharmaceuticals, Inc.Healthcare · Drug Manufacturers - Specialty & Genericas of 2026-09-16
Horizon

Issued 2026-09-16 at $56.35 · now $56.35 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, ETON has typically landed between $44.91 and $78.00 — a range of −20.3% to +38.4% from the issuance price $56.35.

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

1,948 overlapping 1 month windows · 2018-11-132026-08-17 · 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 ($56.35) — 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 ETON has typically landed a month from the 2026-09-16 close of $56.35 — the range is history, not a prediction.

$44.91worst · -20.3%$78best · +38.4%
  • now $56.35 (+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). $58.13 (+3.2%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $50.49$65.77
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $44.91$78
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 1,948 windows spanning 2018-11-13 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
2020-02-18−60.7%−60.7%+0.0%
2020-02-13−54.8%−54.8%+6.6%
2020-02-14−54.4%−55.8%+4.3%
3 best
2023-08-10+99.6%+0.0%+99.6%
2023-07-28+84.7%+0.0%+92.5%
2023-08-09+83.7%−1.5%+86.0%

1,948 overlapping windows · 2018-11-132026-09-16 · 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 ~8 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
50%
+5.0%
n=8
Feb
50%
+0.8%
n=8
Mar
50%
+0.1%
n=8
Apr
38%
+4.1%
n=8
May
63%
+1.9%
n=8
Jun
25%
−4.4%
n=8
Jul
50%
+0.4%
n=8
Aug
75%
+17.0%
n=8
Sep
50%
+5.5%
n=8
Oct
57%
+6.8%
n=7
Nov
57%
+5.1%
n=7
Dec
63%
+5.2%
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$64$142026-08-28: 3 insider sales, $3.0M — MAIER PAUL V …2026-08-24: 1 insider sale, $1.6M — Krempa David2026-08-20: 3 insider sales, $5.5M — BRYNJELSEN SEAN …2026-08-19: 1 insider sale, $562K — BRYNJELSEN SEAN2026-07-14: 2 insider sales, $1.1M — Opaleye Management Inc. …2026-07-07: 2 insider sales, $1.0M — Opaleye Management Inc. …2026-07-06: 1 insider sale, $380K — Opaleye Management Inc.2026-07-02: 2 insider sales, $3.4M — Opaleye Management Inc. …2026-06-17: 1 insider sale, $1.6M — Adams Jennifer McKie2026-05-28: 2 insider sales, $3.8M — BRYNJELSEN SEAN …2026-05-27: 1 insider sale, $619K — Krempa David2026-05-26: 1 insider sale, $1.2M — Krempa David2026-05-22: 3 insider sales, $1.4M — Krempa David …2025-08-20: 1 insider sale, $42K — Gruber James R.2025-08-19: 1 insider sale, $632K — Gruber James R.2025-08: 2 open-market sales, $674K2026-05: 7 open-market sales, $7.1M2026-06: 1 open-market sale, $1.6M2026-07: 7 open-market sales, $5.8M2026-08: 8 open-market sales, $10.7M↑ buys↓ salesdirector MAIER PAUL V — Sale on 2026-08-28, filed same daydirector MAIER PAUL V — Sale on 2026-08-28, filed same daydirector MAIER PAUL V — Sale on 2026-08-28, filed same dayofficer Krempa David — Sale on 2026-08-24, filed same daydirector BRYNJELSEN SEAN — Sale on 2026-08-20, filed same daydirector BRYNJELSEN SEAN — Sale on 2026-08-20, filed same daydirector BRYNJELSEN SEAN — Sale on 2026-08-20, filed same daydirector BRYNJELSEN SEAN — Sale on 2026-08-19, filed 1 day after the tradetenPercentOwner Opaleye Management Inc. — Sale on 2026-07-14, filed 2 days after the tradetenPercentOwner Opaleye Management Inc. — Sale on 2026-07-14, filed 2 days after the tradetenPercentOwner Opaleye Management Inc. — Sale on 2026-07-07, filed same daytenPercentOwner Opaleye Management Inc. — Sale on 2026-07-07, filed same daytenPercentOwner Opaleye Management Inc. — Sale on 2026-07-06, filed 1 day after the tradetenPercentOwner Opaleye Management Inc. — Sale on 2026-07-02, filed 5 days after the tradetenPercentOwner Opaleye Management Inc. — Sale on 2026-07-02, filed 5 days after the tradedirector Adams Jennifer McKie — Sale on 2026-06-17, filed same daydirector BRYNJELSEN SEAN — Sale on 2026-05-28, filed 1 day after the tradedirector BRYNJELSEN SEAN — Sale on 2026-05-28, filed 1 day after the tradeofficer Krempa David — Sale on 2026-05-27, filed same dayofficer Krempa David — Sale on 2026-05-26, filed 1 day after the tradeofficer Krempa David — Sale on 2026-05-22, filed 5 days after the tradeofficer Krempa David — Sale on 2026-05-22, filed 5 days after the tradeofficer Krempa David — Sale on 2026-05-22, filed 5 days after the tradeofficer Gruber James R. — Sale on 2025-08-20, filed same dayofficer Gruber James R. — Sale on 2025-08-19, filed 1 day after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-08-28MAIER PAUL VdirectorSale36,387 @ $58.64$2.1M−33.2% of holdingnot yet — horizon still opennot yet — horizon still open73,358Form 4 · filed same day
2026-08-28MAIER PAUL VdirectorSale13,485 @ $60.21$812K−18.4% of holdingnot yet — horizon still opennot yet — horizon still open59,873Form 4 · filed same day
2026-08-28MAIER PAUL VdirectorSale128 @ $61.77$8K−0.2% of holdingnot yet — horizon still opennot yet — horizon still open59,745Form 4 · filed same day
2026-08-24Krempa DavidofficerSale25,000 @ $65.07$1.6M−40.3% of holdingnot yet — horizon still opennot yet — horizon still open37,025Form 4 · filed same day
2026-08-20BRYNJELSEN SEANdirectorSale47,307 @ $60.17$2.8M−4.5% of holdingnot yet — horizon still opennot yet — horizon still open1,004,909Form 4 · filed same day
2026-08-20BRYNJELSEN SEANdirectorSale36,373 @ $61.11$2.2M−3.6% of holdingnot yet — horizon still opennot yet — horizon still open968,536Form 4 · filed same day
2026-08-20BRYNJELSEN SEANdirectorSale7,342 @ $62.12$456K−0.8% of holdingnot yet — horizon still opennot yet — horizon still open961,194Form 4 · filed same day
2026-08-19BRYNJELSEN SEANdirectorSale8,978 @ $62.65$562K−0.8% of holdingnot yet — horizon still opennot yet — horizon still open1,052,216Form 4 · filed 1 day after the trade
2026-07-14Opaleye Management Inc.tenPercentOwnerSale15,000 @ $37.54$563K−0.6% of holding+8.1%not yet — horizon still open2,665,000Form 4 · filed 2 days after the trade
2026-07-14Opaleye Management Inc.tenPercentOwnerSale13,315 @ $37.54$500K−25.0% of holding+8.1%not yet — horizon still open40,000Form 4 · filed 2 days after the trade
2026-07-07Opaleye Management Inc.tenPercentOwnerSale20,000 @ $38.37$767K−0.7% of holding+18.9%not yet — horizon still open2,680,000Form 4 · filed same day
2026-07-07Opaleye Management Inc.tenPercentOwnerSale6,685 @ $38.37$257K−11.1% of holding+18.9%not yet — horizon still open53,315Form 4 · filed same day
2026-07-06Opaleye Management Inc.tenPercentOwnerSale10,000 @ $38.00$380K−0.4% of holding+17.9%not yet — horizon still open2,700,000Form 4 · filed 1 day after the trade
2026-07-02Opaleye Management Inc.tenPercentOwnerSale65,000 @ $37.39$2.4M−2.3% of holding+18.6%not yet — horizon still open2,710,000Form 4 · filed 5 days after the trade
2026-07-02Opaleye Management Inc.tenPercentOwnerSale25,000 @ $37.39$935K−29.4% of holding+18.6%not yet — horizon still open60,000Form 4 · filed 5 days after the trade
2026-06-17Adams Jennifer McKiedirectorSale50,000 @ $32.48$1.6M−100.0% of holding+25.0%not yet — horizon still open0Form 4 · filed same day
2026-05-28BRYNJELSEN SEANdirectorSale119,852 @ $31.88$3.8M−12.6% of holding+16.8%not yet — horizon still open833,842Form 4 · filed 1 day after the trade
2026-05-28BRYNJELSEN SEANdirectorSale148 @ $32.67$5K−0.0% of holding+16.8%not yet — horizon still open833,694Form 4 · filed 1 day after the trade
2026-05-27Krempa DavidofficerSale19,679 @ $31.47$619K−43.8% of holding+12.8%not yet — horizon still open25,249Form 4 · filed same day
2026-05-26Krempa DavidofficerSale37,524 @ $31.49$1.2M−59.8% of holding+13.2%not yet — horizon still open25,249Form 4 · filed 1 day after the trade
2026-05-22Krempa DavidofficerSale32,963 @ $33.22$1.1M−48.4% of holding+5.7%not yet — horizon still open35,083Form 4 · filed 5 days after the trade
2026-05-22Krempa DavidofficerSale9,315 @ $33.88$316K−26.6% of holding+5.7%not yet — horizon still open25,768Form 4 · filed 5 days after the trade
2026-05-22Krempa DavidofficerSale519 @ $35.00$18K−2.0% of holding+5.7%not yet — horizon still open25,249Form 4 · filed 5 days after the trade
2025-08-20Gruber James R.officerSale2,631 @ $16.02$42K−1.3% of holding+6.5%−0.3%204,753Form 4 · filed same day
2025-08-19Gruber James R.officerSale39,082 @ $16.16$632K−16.0% of holding+10.4%+4.9%205,299Form 4 · filed 1 day after the trade
2025-06-16Krempa DavidofficerSale10,223 @ $14.73$151K−1.6% of holding−6.1%−1.0%612,646Form 4 · filed same day
2025-06-13Krempa DavidofficerSale6,800 @ $14.77$100K−1.1% of holding−7.7%+1.9%622,869Form 4 · filed 3 days after the trade
2025-06-12Krempa DavidofficerSale16,977 @ $14.92$253K−2.6% of holding−3.9%+1.5%629,669Form 4 · filed 4 days after the trade
2025-06-10Opaleye Management Inc.tenPercentOwnerPurchase5,000 @ $15.82$79K+0.2% of holding−11.5%−9.8%2,770,000Form 4 · filed 2 days after the trade
2025-06-10Opaleye Management Inc.tenPercentOwnerPurchase2,930 @ $15.82$46K+3.6% of holding−11.5%−9.8%85,000Form 4 · filed 2 days after the trade
2025-06-05BRYNJELSEN SEANdirectorSale70,000 @ $16.81$1.2M−2.4% of holding−13.3%−18.6%2,873,513Form 4 · filed same day
2025-06-04BRYNJELSEN SEANdirectorSale70,000 @ $17.00$1.2M−2.3% of holding−19.6%−18.1%2,943,513Form 4 · filed 1 day after the trade
2025-06-03BRYNJELSEN SEANdirectorSale60,945 @ $17.38$1.1M−2.0% of holding−21.6%−26.0%3,022,568Form 4 · filed 2 days after the trade
2025-06-03BRYNJELSEN SEANdirectorSale8,655 @ $18.38$159K−0.3% of holding−21.6%−26.0%3,013,913Form 4 · filed 2 days after the trade
2025-06-03BRYNJELSEN SEANdirectorSale400 @ $19.02$8K−0.0% of holding−21.6%−26.0%3,013,513Form 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.

73 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
2026-08-28MAIER PAUL VdirectorOption exercise50,000109,745Form 4
2026-08-28MAIER PAUL VdirectorOption exercise50,0000Form 4
2026-08-24Krempa DavidofficerOption exercise25,00062,025Form 4
2026-08-24Krempa DavidofficerOption exercise25,00070,000Form 4
2026-07-31RIEDEL NORBERT GdirectorAward / grant10,00010,000Form 4
2026-07-31Adams Jennifer McKiedirectorAward / grant10,00010,000Form 4
2026-07-31BRYNJELSEN SEANdirectorAward / grant128,985128,985Form 4
2026-07-31CASAMENTO CHARLES JdirectorAward / grant10,00010,000Form 4
2026-07-31Erdogan-Trinkaus IpekofficerAward / grant80,00080,000Form 4
2026-07-31MAIER PAUL VdirectorAward / grant10,00010,000Form 4
2026-07-31Krempa DavidofficerAward / grant128,985128,985Form 4
2026-07-31Matthews Judith M.officerAward / grant32,24632,246Form 4
2026-07-14BRYNJELSEN SEANdirectorOption exercise200,0001,061,194Form 4
2026-07-14BRYNJELSEN SEANdirectorOption exercise200,0000Form 4
2026-07-12BRYNJELSEN SEANdirectorOption exercise27,5000Form 4
2026-07-12Krempa DavidofficerOption exercise10,0000Form 4
2026-07-12BRYNJELSEN SEANdirectorOption exercise27,500861,194Form 4
2026-07-12Krempa DavidofficerOption exercise10,00037,025Form 4
2026-07-12Krempa DavidofficerOption exercise10,00037,025Form 4
2026-07-12BRYNJELSEN SEANdirectorOption exercise27,500861,194Form 4
2026-06-26Krempa DavidofficerAward / grant10,00096,829Form 4
2026-06-17Adams Jennifer McKiedirectorOption exercise50,00050,000Form 4
2026-06-17Adams Jennifer McKiedirectorOption exercise50,0000Form 4
2026-05-27Krempa DavidofficerOption exercise7,20344,928Form 4
2026-05-27Krempa DavidofficerOption exercise12,47637,725Form 4
2026-05-27Krempa DavidofficerOption exercise12,4760Form 4
2026-05-27Krempa DavidofficerOption exercise7,203118,406Form 4
2026-05-26Krempa DavidofficerOption exercise25,00050,249Form 4
2026-05-26Krempa DavidofficerOption exercise12,52462,773Form 4
2026-05-26Krempa DavidofficerOption exercise25,0000Form 4
2026-05-26Krempa DavidofficerOption exercise12,52412,476Form 4
2026-05-22Krempa DavidofficerOption exercise30,59168,046Form 4
2026-05-22Krempa DavidofficerOption exercise30,591125,609Form 4
2026-04-21RIEDEL NORBERT GdirectorOption exercise19,65567,155Form 4
2026-04-21RIEDEL NORBERT GdirectorOption exercise12,50047,500Form 4
2026-04-21RIEDEL NORBERT GdirectorOption exercise12,5000Form 4
2026-04-21RIEDEL NORBERT GdirectorOption exercise19,6550Form 4
2026-02-03RIEDEL NORBERT GdirectorExercise30,00035,000Form 4
2026-02-03RIEDEL NORBERT GdirectorExercise30,0000Form 4
2026-01-14Gruber James R.officerWithheld for tax2,293213,420Form 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.