Issued 2026-09-25 at $89.70 · now $89.70 (2026-09-25, +0.0% since)
Based on its own history, a month from the 2026-09-25 close, MIRM has typically landed between $74.78 and $113.54 — a range of −16.6% to +26.6% from the issuance price $89.70.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
1,786 overlapping 1 month windows · 2019-07-18 – 2026-08-26 · basis climatology · forecast (batch). Base rate up 53.7% (90% CI 51.5–55.9%, ≈1,391 obs). Not a call on this stock — we have no evidence its odds differ.
The cone is anchored at the 2026-09-25 issuance close ($89.70) — the price the forecast resolves against on 2026-10-26, 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 MIRM has typically landed a month from the 2026-09-25 close of $89.7 — the range is history, not a prediction.
- now $89.7 (+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). $91.65 (+2.2%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $83.42–$99.87
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $74.78–$113.54
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 1,786 windows spanning 2019-07-18 to 2026-09-25. 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.
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2020-02-18 | −45.6% | −45.6% | +7.1% |
| 2020-02-19 | −40.3% | −48.1% | +2.0% |
| 2020-02-13 | −39.0% | −39.0% | +8.1% |
| 3 best | |||
| 2019-11-25 | +272.7% | +0.0% | +272.7% |
| 2019-11-22 | +255.6% | −1.8% | +255.6% |
| 2019-11-26 | +251.4% | +0.0% | +264.8% |
1,786 overlapping windows · 2019-07-18 – 2026-09-25 · not cherry-picked
Pending catalysts
- October 2026 — Trial primary completion: Phase 3 primary completion: Evaluation of Maralixibat in Pruritus Associated With General Cholestatic Liver Disease (EXPAND) (source, as of 2026-08-14)
- April 2027 — Trial primary completion: Phase 2 primary completion: A Study to Evaluate Efficacy and Safety of an Investigational Drug Named Volixibat in Patients With Itching Caused by Primary Biliary Cholangitis (source, as of 2026-08-14)
- 2027-06-30 — Trial primary completion: Phase 3 primary completion: A Trial Evaluating Brelovitug (BJT-778) vs Bulevirtide for the Treatment of Chronic Hepatitis Delta Infection (AZURE-2) (source, as of 2026-08-14)
- 2027-08-31 — Trial primary completion: Phase 2/Phase PHASE3 primary completion: Study to Evaluate Switching to Brelovitug for the Treatment of CHD in Participants Receiving Bulevirtide (source, as of 2026-08-14)
- October 2027 — Trial primary completion: Phase 2 primary completion: Study of MRM-3379 in Male Participants With Fragile X Syndrome (BLOOM) (source, as of 2026-08-14)
- May 2029 — Trial primary completion: Phase 2/Phase PHASE3 primary completion: A Trial Evaluating BJT-778 vs Delayed Treatment for the Treatment of Chronic Hepatitis Delta Infection (source, as of 2026-08-14)
Public, scheduled events — dated attention, not a prediction of the outcome. See the FDA catalysts page for the historical base rate.
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
71%
+6.6%
n=7
Feb
71%
+3.8%
n=7
Mar
43%
−4.3%
n=7
Apr
57%
+5.8%
n=7
May
29%
−2.5%
n=7
Jun
71%
+10.6%
n=7
Jul
57%
+5.2%
n=7
Aug
63%
+8.5%
n=8
Sep
25%
−4.9%
n=8
Oct
14%
−10.8%
n=7
Nov
71%
+8.5%
n=7
Dec
57%
+31.5%
n=7
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.
| Date | Person | Role | Action | Shares @ price | Value | Ownership Δ | vs S&P 1m | vs S&P 6m | Owned after | Filing |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-14 | BJERKHOLT ERIC | director | Sale | 9,943 @ $98.37 | $978K | −18.2% of holding | not yet — horizon still open | not yet — horizon still open | 44,745 | Form 4 · filed 1 day after the trade |
| 2026-09-02 | Howe Jolanda | officer | Sale | 658 @ $100.00 | $66K | −51.6% of holding | not yet — horizon still open | not yet — horizon still open | 616 | Form 4 · filed 1 day after the trade |
| 2026-09-01 | Peetz Christopher | director | Sale | 21,688 @ $98.91 | $2.1M | −10.0% of holding | not yet — horizon still open | not yet — horizon still open | 194,440 | Form 4 · filed 2 days after the trade |
| 2026-09-01 | Peetz Christopher | director | Sale | 8,312 @ $98.08 | $815K | −3.7% of holding | not yet — horizon still open | not yet — horizon still open | 216,128 | Form 4 · filed 2 days after the trade |
| 2026-08-18 | Howe Jolanda | officer | Sale | 40,000 @ $100.00 | $4.0M | −96.9% of holding | −1.2% | not yet — horizon still open | 1,274 | Form 4 · filed 1 day after the trade |
| 2026-08-11 | BJERKHOLT ERIC | director | Sale | 6,001 @ $99.90 | $600K | −14.2% of holding | +4.1% | not yet — horizon still open | 36,355 | Form 4 · filed 1 day after the trade |
| 2026-08-10 | Peetz Christopher | director | Sale | 11,683 @ $98.51 | $1.2M | −5.5% of holding | +1.0% | not yet — horizon still open | 202,626 | Form 4 · filed 1 day after the trade |
| 2026-08-10 | Peetz Christopher | director | Sale | 6,017 @ $99.25 | $597K | −3.0% of holding | +1.0% | not yet — horizon still open | 196,609 | Form 4 · filed 1 day after the trade |
| 2026-08-10 | Peetz Christopher | director | Sale | 2,300 @ $100.14 | $230K | −1.2% of holding | +1.0% | not yet — horizon still open | 194,309 | Form 4 · filed 1 day after the trade |
| 2026-08-03 | Howe Jolanda | officer | Sale | 1,840 @ $105.29 | $194K | −59.1% of holding | −6.5% | not yet — horizon still open | 1,274 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | Peetz Christopher | director | Sale | 12,134 @ $121.65 | $1.5M | −5.7% of holding | −17.1% | not yet — horizon still open | 202,175 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | Peetz Christopher | director | Sale | 4,181 @ $122.34 | $512K | −2.1% of holding | −17.1% | not yet — horizon still open | 197,994 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | BJERKHOLT ERIC | director | Sale | 3,124 @ $121.67 | $380K | −6.6% of holding | −17.1% | not yet — horizon still open | 44,057 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | Peetz Christopher | director | Sale | 1,975 @ $123.74 | $244K | −1.0% of holding | −17.1% | not yet — horizon still open | 196,019 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | Peetz Christopher | director | Sale | 1,710 @ $124.79 | $213K | −0.9% of holding | −17.1% | not yet — horizon still open | 194,309 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | BJERKHOLT ERIC | director | Sale | 1,048 @ $122.43 | $128K | −2.4% of holding | −17.1% | not yet — horizon still open | 43,009 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | BJERKHOLT ERIC | director | Sale | 528 @ $123.84 | $65K | −1.2% of holding | −17.1% | not yet — horizon still open | 42,481 | Form 4 · filed 2 days after the trade |
| 2026-07-06 | BJERKHOLT ERIC | director | Sale | 300 @ $124.94 | $37K | −0.7% of holding | −17.1% | not yet — horizon still open | 42,181 | Form 4 · filed 2 days after the trade |
| 2026-07-01 | Howe Jolanda | officer | Sale | 2,721 @ $120.00 | $327K | −46.6% of holding | −12.2% | not yet — horizon still open | 3,114 | Form 4 · filed 1 day after the trade |
| 2026-06-17 | Howe Jolanda | officer | Sale | 2,594 @ $101.95 | $264K | −30.8% of holding | +13.9% | not yet — horizon still open | 5,835 | Form 4 · filed 1 day after the trade |
| 2026-06-08 | BJERKHOLT ERIC | director | Sale | 2,258 @ $92.84 | $210K | −4.5% of holding | +34.5% | not yet — horizon still open | 47,530 | Form 4 · filed 1 day after the trade |
| 2026-06-08 | BJERKHOLT ERIC | director | Sale | 1,567 @ $95.12 | $149K | −3.4% of holding | +34.5% | not yet — horizon still open | 44,788 | Form 4 · filed 1 day after the trade |
| 2026-06-08 | BJERKHOLT ERIC | director | Sale | 1,175 @ $93.95 | $110K | −2.5% of holding | +34.5% | not yet — horizon still open | 46,355 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 16,595 @ $95.34 | $1.6M | −7.5% of holding | +26.5% | not yet — horizon still open | 205,112 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 6,926 @ $96.15 | $666K | −3.4% of holding | +26.5% | not yet — horizon still open | 198,186 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Ramasastry Saira | director | Sale | 3,977 @ $100.00 | $398K | −100.0% of holding | +26.5% | not yet — horizon still open | 0 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 2,602 @ $94.64 | $246K | −1.2% of holding | +26.5% | not yet — horizon still open | 221,707 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 1,973 @ $97.56 | $192K | −1.0% of holding | +26.5% | not yet — horizon still open | 196,213 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 1,021 @ $98.20 | $100K | −0.5% of holding | +26.5% | not yet — horizon still open | 195,192 | Form 4 · filed 1 day after the trade |
| 2026-06-01 | Peetz Christopher | director | Sale | 883 @ $99.66 | $88K | −0.5% of holding | +26.5% | not yet — horizon still open | 194,309 | Form 4 · filed 1 day after the trade |
| 2026-05-15 | Ramasastry Saira | director | Sale | 2,000 @ $109.47 | $219K | −100.0% of holding | −2.1% | not yet — horizon still open | 0 | Form 4 · filed 3 days after the trade |
| 2026-04-15 | Ramasastry Saira | director | Sale | 2,000 @ $96.90 | $194K | −100.0% of holding | +8.7% | not yet — horizon still open | 0 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | Peetz Christopher | director | Sale | 40,985 @ $91.98 | $3.8M | −17.4% of holding | −0.8% | −12.2% | 194,309 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | Radovich Peter | officer | Sale | 16,515 @ $91.98 | $1.5M | −29.1% of holding | −0.8% | −12.2% | 40,272 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | Quan Joanne | officer | Sale | 7,287 @ $91.98 | $670K | −27.9% of holding | −0.8% | −12.2% | 18,864 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | BJERKHOLT ERIC | director | Sale | 7,287 @ $91.98 | $670K | −12.8% of holding | −0.8% | −12.2% | 49,788 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | Howe Jolanda | officer | Sale | 4,732 @ $91.98 | $435K | −36.0% of holding | −0.8% | −12.2% | 8,429 | Form 4 · filed 1 day after the trade |
| 2026-03-16 | Ramasastry Saira | director | Sale | 2,000 @ $90.76 | $182K | −100.0% of holding | −0.8% | −12.2% | 0 | Form 4 · filed 1 day after the trade |
| 2026-02-13 | Ramasastry Saira | director | Sale | 2,000 @ $102.09 | $204K | −100.0% of holding | −4.7% | −17.1% | 0 | Form 4 · filed 4 days after the trade |
| 2026-02-02 | Peetz Christopher | director | Sale | 9,108 @ $103.30 | $941K | −5.4% of holding | −8.9% | −11.0% | 160,294 | Form 4 · filed 1 day after the trade |
| 2026-02-02 | Radovich Peter | officer | Sale | 2,631 @ $103.30 | $272K | −11.3% of holding | −8.9% | −11.0% | 20,655 | Form 4 · filed 1 day after the trade |
| 2026-02-02 | Howe Jolanda | officer | Sale | 968 @ $103.30 | $100K | −17.7% of holding | −8.9% | −11.0% | 4,503 | Form 4 · filed 1 day after the trade |
| 2026-01-26 | Peetz Christopher | director | Sale | 6,831 @ $96.19 | $657K | −3.9% of holding | +12.0% | +8.3% | 169,402 | Form 4 · filed 1 day after the trade |
| 2026-01-26 | Radovich Peter | officer | Sale | 3,143 @ $96.19 | $302K | −11.9% of holding | +12.0% | +8.3% | 23,286 | Form 4 · filed 1 day after the trade |
| 2026-01-26 | BJERKHOLT ERIC | director | Sale | 1,053 @ $96.19 | $101K | −2.4% of holding | +12.0% | +8.3% | 43,741 | Form 4 · filed 1 day after the trade |
| 2026-01-26 | Howe Jolanda | officer | Sale | 842 @ $96.19 | $81K | −18.5% of holding | +12.0% | +8.3% | 3,700 | Form 4 · filed 1 day after the trade |
| 2026-01-23 | Heron Patrick J | director | Purchase | 131,425 @ $68.48 | $9.0M | +40.1% of holding | +14.3% | +13.3% | 459,010 | Form 4 · filed 4 days after the trade |
| 2026-01-22 | Peetz Christopher | director | Sale | 7,098 @ $93.33 | $662K | −4.2% of holding | +11.2% | +9.9% | 163,733 | Form 4 · filed 1 day after the trade |
| 2026-01-22 | Radovich Peter | officer | Sale | 2,382 @ $93.33 | $222K | −10.3% of holding | +11.2% | +9.9% | 20,679 | Form 4 · filed 1 day after the trade |
| 2026-01-22 | Quan Joanne | officer | Sale | 1,822 @ $93.33 | $170K | −12.4% of holding | +11.2% | +9.9% | 12,817 | Form 4 · filed 1 day after the trade |
| 2026-01-22 | BJERKHOLT ERIC | director | Sale | 1,421 @ $93.33 | $133K | −3.3% of holding | +11.2% | +9.9% | 42,127 | Form 4 · filed 1 day after the trade |
| 2026-01-22 | Howe Jolanda | officer | Sale | 926 @ $93.33 | $86K | −23.3% of holding | +11.2% | +9.9% | 3,042 | Form 4 · filed 1 day after the trade |
| 2026-01-20 | Quan Joanne | officer | Sale | 6,911 @ $90.27 | $624K | −37.9% of holding | +13.8% | +13.7% | 11,305 | Form 4 · filed 1 day after the trade |
| 2026-01-15 | Ramasastry Saira | director | Sale | 2,000 @ $90.99 | $182K | −100.0% of holding | +12.7% | +18.6% | 0 | Form 4 · filed 1 day after the trade |
| 2025-12-22 | Ramasastry Saira | director | Sale | 5,000 @ $80.00 | $400K | −100.0% of holding | +15.7% | +36.9% | 0 | Form 4 · filed 1 day after the trade |
| 2025-12-19 | GREY MICHAEL G | director | Sale | 50,000 @ $78.00 | $3.9M | −100.0% of holding | +22.3% | +39.6% | 0 | Form 4 · filed 4 days after the trade |
| 2025-12-18 | Ramasastry Saira | director | Sale | 1,000 @ $70.00 | $70K | −100.0% of holding | +31.1% | +48.7% | 0 | Form 4 · filed 1 day after the trade |
| 2025-12-18 | Ramasastry Saira | director | Sale | 1,000 @ $69.46 | $69K | −50.0% of holding | +31.1% | +48.7% | 1,000 | Form 4 · filed 1 day after the trade |
| 2025-12-01 | GREY MICHAEL G | director | Sale | 50,000 @ $74.00 | $3.7M | −100.0% of holding | +12.3% | +19.7% | 0 | Form 4 · filed 1 day after the trade |
| 2025-11-21 | GREY MICHAEL G | director | Sale | 50,000 @ $70.00 | $3.5M | −100.0% of holding | +8.1% | +22.6% | 0 | Form 4 · filed 4 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.
208 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.
| Date | Person | Role | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-11 | BJERKHOLT ERIC | director | Option exercise | 18,333 | 0 | Form 4 |
| 2026-09-11 | BJERKHOLT ERIC | director | Option exercise | 18,333 | 54,688 | Form 4 |
| 2026-09-11 | BJERKHOLT ERIC | director | Option exercise | 18,333 | 54,688 | Form 4 |
| 2026-09-11 | BJERKHOLT ERIC | director | Option exercise | 18,333 | 54,688 | Form 4 |
| 2026-09-11 | BJERKHOLT ERIC | director | Option exercise | 18,333 | 54,688 | Form 4 |
| 2026-09-01 | Peetz Christopher | director | Option exercise | 30,000 | 224,440 | Form 4 |
| 2026-09-01 | Peetz Christopher | director | Option exercise | 30,000 | 58,487 | Form 4 |
| 2026-08-18 | Howe Jolanda | officer | Option exercise | 40,000 | 41,274 | Form 4 |
| 2026-08-18 | Howe Jolanda | officer | Option exercise | 40,000 | 0 | Form 4 |
| 2026-08-10 | Peetz Christopher | director | Option exercise | 20,000 | 214,309 | Form 4 |
| 2026-08-10 | Peetz Christopher | director | Option exercise | 20,000 | 88,487 | Form 4 |
| 2026-07-06 | Peetz Christopher | director | Option exercise | 20,000 | 214,309 | Form 4 |
| 2026-07-06 | Peetz Christopher | director | Option exercise | 20,000 | 108,487 | Form 4 |
| 2026-06-15 | Walbert Timothy P | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Walbert Timothy P | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Ramasastry Saira | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Ramasastry Saira | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Brege Laura | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | GREY MICHAEL G | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Heron Patrick J | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Heron Patrick J | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Fairey William | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Cardon Lon | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Cardon Lon | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Brege Laura | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | GREY MICHAEL G | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Fischer Laurent | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-15 | Fischer Laurent | director | Award / grant | 3,772 | 3,772 | Form 4 |
| 2026-06-15 | Fairey William | director | Award / grant | 1,980 | 1,980 | Form 4 |
| 2026-06-09 | BJERKHOLT ERIC | director | Option exercise | 2,393 | 47,181 | Form 4 |
| 2026-06-09 | BJERKHOLT ERIC | director | Option exercise | 2,393 | 26,653 | Form 4 |
| 2026-06-05 | Radovich Peter | officer | Option exercise | 16,988 | 57,260 | Form 4 |
| 2026-06-05 | Radovich Peter | officer | Option exercise | 16,988 | 48,012 | Form 4 |
| 2026-06-01 | Peetz Christopher | director | Option exercise | 30,000 | 224,309 | Form 4 |
| 2026-06-01 | Peetz Christopher | director | Option exercise | 30,000 | 128,487 | Form 4 |
| 2026-05-29 | Cardon Lon | director | Option exercise | 3,977 | 0 | Form 4 |
| 2026-05-29 | Fischer Laurent | director | Option exercise | 3,977 | 0 | Form 4 |
| 2026-05-29 | Walbert Timothy P | director | Option exercise | 3,977 | 0 | Form 4 |
| 2026-05-29 | Ramasastry Saira | director | Option exercise | 3,977 | 0 | Form 4 |
| 2026-05-29 | Ramasastry Saira | director | Option exercise | 3,977 | 3,977 | Form 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.