Issued 2026-09-16 at $149.50 · now $149.50 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, NBIX has typically landed between $129.38 and $168.85 — a range of −13.5% to +12.9% from the issuance price $149.50.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
5,002 overlapping 1 month windows · 2006-09-26 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).
The cone is anchored at the 2026-09-16 issuance close ($149.50) — 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 NBIX has typically landed a month from the 2026-09-16 close of $149.5 — the range is history, not a prediction.
- now $149.5 (+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). $151.95 (+1.6%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $142.77–$161.13
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $129.38–$168.85
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2007-11-30 | −65.3% | −67.8% | +0.0% |
| 2007-12-03 | −64.7% | −67.3% | +0.0% |
| 2007-11-29 | −62.1% | −65.1% | +8.6% |
| 3 best | |||
| 2010-05-20 | +116.7% | +0.0% | +116.7% |
| 2013-12-17 | +113.0% | +0.0% | +116.2% |
| 2013-12-13 | +111.1% | −2.0% | +111.1% |
5,002 overlapping windows · 2006-09-26 – 2026-09-16 · 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 ~20 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.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 | ABERNETHY MATT | director | Sale | 2,311 @ $157.20 | $363K | −5.1% of holding | not yet — horizon still open | not yet — horizon still open | 42,808 | Form 4 · filed 1 day after the trade |
| 2026-09-14 | Boyer David W. | officer | Sale | 826 @ $157.45 | $130K | −8.7% of holding | not yet — horizon still open | not yet — horizon still open | 8,722 | Form 4 · filed 1 day after the trade |
| 2026-09-09 | BENEVICH ERIC | director | Sale | 2,154 @ $154.61 | $333K | −3.2% of holding | not yet — horizon still open | not yet — horizon still open | 64,408 | Form 4 · filed 1 day after the trade |
| 2026-07-28 | Norwalk Leslie V | director | Sale | 1,250 @ $182.01 | $228K | −44.0% of holding | −17.8% | not yet — horizon still open | 1,588 | Form 4 · filed 2 days after the trade |
| 2026-07-10 | Delaet Ingrid | officer | Sale | 4,367 @ $181.02 | $791K | −21.2% of holding | −9.3% | not yet — horizon still open | 16,225 | Form 4 · filed 3 days after the trade |
| 2026-07-09 | Lippoldt Darin | officer | Sale | 10,000 @ $179.60 | $1.8M | −15.4% of holding | −12.4% | not yet — horizon still open | 54,729 | Form 4 · filed 4 days after the trade |
| 2026-07-09 | Delaet Ingrid | officer | Sale | 8,433 @ $178.72 | $1.5M | −34.2% of holding | −12.4% | not yet — horizon still open | 16,225 | Form 4 · filed same day |
| 2026-07-08 | Delaet Ingrid | officer | Sale | 2,737 @ $178.54 | $489K | −14.4% of holding | −13.4% | not yet — horizon still open | 16,225 | Form 4 · filed 1 day after the trade |
| 2026-07-07 | Delaet Ingrid | officer | Sale | 3,401 @ $178.57 | $607K | −17.3% of holding | −12.0% | not yet — horizon still open | 16,225 | Form 4 · filed 2 days after the trade |
| 2026-06-29 | Lippoldt Darin | officer | Sale | 8,110 @ $170.03 | $1.4M | −12.9% of holding | +7.9% | not yet — horizon still open | 54,729 | Form 4 · filed 1 day after the trade |
| 2026-06-29 | Lippoldt Darin | officer | Sale | 1,690 @ $170.81 | $289K | −3.0% of holding | +7.9% | not yet — horizon still open | 54,729 | Form 4 · filed 1 day after the trade |
| 2026-06-26 | Lippoldt Darin | officer | Sale | 200 @ $169.56 | $34K | −0.4% of holding | +6.9% | not yet — horizon still open | 54,729 | Form 4 · filed 4 days after the trade |
| 2026-06-05 | SHERWIN STEPHEN A | director | Sale | 7,883 @ $163.81 | $1.3M | −19.3% of holding | +7.4% | not yet — horizon still open | 32,977 | Form 4 · filed 4 days after the trade |
| 2026-06-05 | SHERWIN STEPHEN A | director | Sale | 6,896 @ $165.79 | $1.1M | −22.7% of holding | +7.4% | not yet — horizon still open | 23,532 | Form 4 · filed 4 days after the trade |
| 2026-06-05 | SHERWIN STEPHEN A | director | Sale | 5,829 @ $166.56 | $971K | −24.8% of holding | +7.4% | not yet — horizon still open | 17,703 | Form 4 · filed 4 days after the trade |
| 2026-06-05 | SHERWIN STEPHEN A | director | Sale | 2,549 @ $164.44 | $419K | −7.7% of holding | +7.4% | not yet — horizon still open | 30,428 | Form 4 · filed 4 days after the trade |
| 2026-06-05 | SHERWIN STEPHEN A | director | Sale | 1,843 @ $167.31 | $308K | −10.4% of holding | +7.4% | not yet — horizon still open | 15,860 | Form 4 · filed 4 days after the trade |
| 2026-06-04 | Norwalk Leslie V | director | Sale | 1,250 @ $168.06 | $210K | −30.6% of holding | +7.0% | not yet — horizon still open | 2,838 | Form 4 · filed 4 days after the trade |
| 2026-06-02 | Cooke Julie | officer | Sale | 14,214 @ $154.83 | $2.2M | −24.0% of holding | +14.2% | not yet — horizon still open | 45,097 | Form 4 · filed 2 days after the trade |
| 2026-06-02 | Cooke Julie | officer | Sale | 9,521 @ $157.62 | $1.5M | −26.9% of holding | +14.2% | not yet — horizon still open | 25,894 | Form 4 · filed 2 days after the trade |
| 2026-06-02 | Cooke Julie | officer | Sale | 5,466 @ $155.46 | $850K | −12.1% of holding | +14.2% | not yet — horizon still open | 39,631 | Form 4 · filed 2 days after the trade |
| 2026-06-02 | Cooke Julie | officer | Sale | 4,216 @ $156.77 | $661K | −10.6% of holding | +14.2% | not yet — horizon still open | 35,415 | Form 4 · filed 2 days after the trade |
| 2026-06-02 | Cooke Julie | officer | Sale | 3,520 @ $158.59 | $558K | −13.6% of holding | +14.2% | not yet — horizon still open | 22,374 | Form 4 · filed 2 days after the trade |
| 2026-06-01 | Onyia Jude | director | Sale | 11,000 @ $160.25 | $1.8M | −29.9% of holding | +5.6% | not yet — horizon still open | 25,846 | Form 4 · filed 1 day after the trade |
| 2026-05-29 | Delaet Ingrid | officer | Sale | 2,261 @ $156.71 | $354K | −12.2% of holding | +7.5% | not yet — horizon still open | 16,225 | Form 4 · filed 4 days after the trade |
| 2026-05-27 | Onyia Jude | director | Sale | 11,000 @ $155.53 | $1.7M | −29.9% of holding | +10.8% | not yet — horizon still open | 25,846 | Form 4 · filed 2 days after the trade |
| 2026-05-26 | Boyer David W. | officer | Sale | 3,888 @ $156.64 | $609K | −33.3% of holding | +7.3% | not yet — horizon still open | 7,799 | Form 4 · filed 2 days after the trade |
| 2026-05-19 | GORMAN KEVIN CHARLES | director | Sale | 245,088 @ $154.33 | $37.8M | −32.4% of holding | +0.5% | not yet — horizon still open | 511,293 | Form 4 · filed 2 days after the trade |
| 2026-05-15 | POPS RICHARD F | director | Sale | 15,000 @ $157.65 | $2.4M | −30.3% of holding | −2.8% | not yet — horizon still open | 34,480 | Form 4 · filed 3 days after the trade |
| 2026-05-12 | Norwalk Leslie V | director | Sale | 3,810 @ $155.01 | $591K | −61.1% of holding | +4.5% | not yet — horizon still open | 2,429 | Form 4 · filed 2 days after the trade |
| 2026-01-16 | Gano Kyle | director | Sale | 34,588 @ $132.70 | $4.6M | −19.8% of holding | −2.3% | +26.5% | 140,407 | Form 4 · filed 4 days after the trade |
| 2026-01-16 | Gano Kyle | director | Sale | 1,812 @ $132.71 | $240K | −1.3% of holding | −2.3% | +26.5% | 140,407 | Form 4 · filed 4 days after the trade |
| 2025-12-16 | Norwalk Leslie V | director | Sale | 1,190 @ $155.09 | $185K | −16.0% of holding | −13.2% | −4.5% | 6,239 | Form 4 · filed 1 day after the trade |
| 2025-12-15 | Norwalk Leslie V | director | Sale | 5,000 @ $152.23 | $761K | −40.2% of holding | −15.4% | −6.3% | 7,429 | Form 4 · filed 2 days after the trade |
| 2025-12-08 | Lippoldt Darin | officer | Sale | 4,376 @ $159.65 | $699K | −9.2% of holding | −13.7% | −2.9% | 43,405 | Form 4 · filed 2 days after the trade |
| 2025-12-03 | LYONS GARY A | director | Sale | 15,000 @ $152.61 | $2.3M | −11.1% of holding | −11.4% | −0.6% | 120,482 | Form 4 · filed 1 day after the trade |
| 2025-11-28 | BENEVICH ERIC | director | Sale | 5,970 @ $151.74 | $906K | −11.7% of holding | −8.2% | −10.0% | 44,893 | Form 4 · filed 4 days after the trade |
| 2025-11-25 | MORROW GEORGE J | director | Sale | 15,000 @ $143.37 | $2.2M | −68.0% of holding | −1.4% | −2.4% | 7,068 | Form 4 · filed 1 day after the trade |
| 2025-11-05 | RASTETTER WILLIAM H | director | Sale | 18,000 @ $151.82 | $2.7M | −30.8% of holding | −0.1% | −10.5% | 40,360 | Form 4 · filed 1 day 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.
261 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 | GORMAN KEVIN CHARLES | director | Withheld for tax | 7,839 | 517,797 | Form 4 |
| 2026-09-11 | BENEVICH ERIC | director | Withheld for tax | 3,386 | 67,297 | Form 4 |
| 2026-09-11 | Gano Kyle | director | Withheld for tax | 3,386 | 153,880 | Form 4 |
| 2026-09-11 | ABERNETHY MATT | director | Withheld for tax | 2,709 | 45,119 | Form 4 |
| 2026-09-11 | Delaet Ingrid | officer | Withheld for tax | 2,419 | 18,289 | Form 4 |
| 2026-09-11 | Lippoldt Darin | officer | Withheld for tax | 2,419 | 56,793 | Form 4 |
| 2026-09-11 | Keswani Sanjay Chandru | officer | Withheld for tax | 2,112 | 3,281 | Form 4 |
| 2026-09-11 | Cooke Julie | officer | Withheld for tax | 1,936 | 24,025 | Form 4 |
| 2026-09-11 | Boyer David W. | officer | Withheld for tax | 1,936 | 9,548 | Form 4 |
| 2026-09-11 | Onyia Jude | director | Withheld for tax | 1,936 | 22,647 | Form 4 |
| 2026-09-11 | Gano Kyle | director | Withheld for tax | 994 | 154,728 | Form 4 |
| 2026-09-11 | GORMAN KEVIN CHARLES | director | Award / grant | 14,343 | 525,636 | Form 4 |
| 2026-09-11 | Gano Kyle | director | Award / grant | 1,842 | 155,722 | Form 4 |
| 2026-09-11 | Gano Kyle | director | Award / grant | 6,275 | 157,266 | Form 4 |
| 2026-09-11 | Keswani Sanjay Chandru | officer | Award / grant | 3,914 | 5,393 | Form 4 |
| 2026-09-11 | Lippoldt Darin | officer | Award / grant | 4,483 | 59,212 | Form 4 |
| 2026-09-11 | Cooke Julie | officer | Award / grant | 3,587 | 25,961 | Form 4 |
| 2026-09-11 | Onyia Jude | director | Award / grant | 3,587 | 24,583 | Form 4 |
| 2026-09-11 | ABERNETHY MATT | director | Award / grant | 5,020 | 47,828 | Form 4 |
| 2026-09-11 | BENEVICH ERIC | director | Award / grant | 6,275 | 70,683 | Form 4 |
| 2026-09-11 | Boyer David W. | officer | Award / grant | 3,587 | 11,484 | Form 4 |
| 2026-09-11 | Delaet Ingrid | officer | Award / grant | 4,483 | 20,708 | Form 4 |
| 2026-09-09 | BENEVICH ERIC | director | Option exercise | 3,194 | 66,562 | Form 4 |
| 2026-09-09 | BENEVICH ERIC | director | Option exercise | 3,194 | 0 | Form 4 |
| 2026-09-02 | SHERWIN STEPHEN A | director | Gift | 1,000 | 14,860 | Form 4 |
| 2026-08-04 | Onyia Jude | director | Gift | 2,409 | 20,996 | Form 4 |
| 2026-07-29 | Norwalk Leslie V | director | Option exercise | 842 | 2,430 | Form 4 |
| 2026-07-29 | Norwalk Leslie V | director | Option exercise | 842 | 2,140 | Form 4 |
| 2026-07-10 | Delaet Ingrid | officer | Option exercise | 4,367 | 20,592 | Form 4 |
| 2026-07-10 | Delaet Ingrid | officer | Option exercise | 4,367 | 0 | Form 4 |
| 2026-07-09 | Delaet Ingrid | officer | Option exercise | 8,433 | 24,658 | Form 4 |
| 2026-07-09 | Lippoldt Darin | officer | Option exercise | 10,000 | 64,729 | Form 4 |
| 2026-07-09 | Lippoldt Darin | officer | Option exercise | 10,000 | 4,965 | Form 4 |
| 2026-07-09 | Delaet Ingrid | officer | Option exercise | 8,433 | 7,478 | Form 4 |
| 2026-07-08 | Delaet Ingrid | officer | Option exercise | 2,737 | 18,962 | Form 4 |
| 2026-07-08 | Delaet Ingrid | officer | Option exercise | 2,737 | 15,911 | Form 4 |
| 2026-07-07 | Delaet Ingrid | officer | Option exercise | 3,401 | 19,626 | Form 4 |
| 2026-07-07 | Delaet Ingrid | officer | Option exercise | 3,401 | 18,648 | Form 4 |
| 2026-06-29 | Lippoldt Darin | officer | Option exercise | 8,110 | 62,839 | Form 4 |
| 2026-06-29 | Lippoldt Darin | officer | Option exercise | 1,690 | 56,419 | 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.