CRBUCaribou Biosciences, Inc.Healthcare · Biotechnologyas of 2026-09-16
Horizon

Issued 2026-09-16 at $1.25 · now $1.25 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, CRBU has typically landed between $0.89 and $1.78 — a range of −29.1% to +42.7% from the issuance price $1.25.

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

1,272 overlapping 1 month windows · 2021-07-232026-08-17 · 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 ($1.25) — 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 CRBU has typically landed a month from the 2026-09-16 close of $1.25 — the range is history, not a prediction.

$0.8866worst · -29.1%$1.78best · +42.7%
  • now $1.25 (+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). $1.16 (-7.2%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $0.9942$1.33
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $0.8866$1.78
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 1,272 windows spanning 2021-07-23 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
2024-05-17−51.6%−51.6%+0.0%
2024-05-16−51.3%−51.3%+0.0%
2024-05-15−50.8%−50.8%+0.0%
3 best
2025-06-23+87.9%−5.3%+87.9%
2023-06-09+80.9%−5.8%+80.9%
2021-07-23+79.2%−3.5%+79.2%

1,272 overlapping windows · 2021-07-232026-09-16 · 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 ~6 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
40%
−5.7%
n=5
Feb
40%
+4.6%
n=5
Mar
0%
−15.6%
n=5
Apr
0%
−15.1%
n=5
May
80%
+8.9%
n=5
Jun
20%
−17.6%
n=5
Jul
80%
+40.8%
n=5
Aug
50%
+10.3%
n=6
Sep
33%
−4.6%
n=6
Oct
20%
−7.0%
n=5
Nov
40%
+6.7%
n=5
Dec
0%
−19.8%
n=5

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$3$12026-02-25: 1 insider sale, $12K — Kelly Timothy P2026-02-24: 4 insider sales, $35K — MCCLUNG BARBARA G, Khan Ruhi Ahmad, Kelly Timothy P, Albertson Tina M.2026-02: 5 open-market sales, $47K↑ buys↓ salesofficer Kelly Timothy P — Sale on 2026-02-25, filed 2 days after the tradeofficer MCCLUNG BARBARA G — Sale on 2026-02-24, filed same dayofficer Khan Ruhi Ahmad — Sale on 2026-02-24, filed same dayofficer Kelly Timothy P — Sale on 2026-02-24, filed same dayofficer Albertson Tina M. — Sale on 2026-02-24, filed same day
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-02-25Kelly Timothy PofficerSale6,228 @ $1.93$12K−7.8% of holding+4.6%−26.5%73,125Form 4 · filed 2 days after the trade
2026-02-24MCCLUNG BARBARA GofficerSale6,938 @ $1.96$14K−1.4% of holding−8.0%−29.8%481,564Form 4 · filed same day
2026-02-24Khan Ruhi AhmadofficerSale6,938 @ $1.96$14K−6.2% of holding−8.0%−29.8%104,998Form 4 · filed same day
2026-02-24Kelly Timothy PofficerSale3,147 @ $1.96$6K−3.8% of holding−8.0%−29.8%79,353Form 4 · filed same day
2026-02-24Albertson Tina M.officerSale1,066 @ $1.96$2K−1.5% of holding−8.0%−29.8%68,523Form 4 · filed same day
2025-03-14Haurwitz Rachel E.directorPurchase20,000 @ $1.02$20K+0.6% of holding−16.9%+63.1%3,369,395Form 4 · filed 3 days after the trade
2025-02-21MCCLUNG BARBARA GofficerSale3,564 @ $1.35$5K−0.8% of holding−18.1%+33.0%443,502Form 4 · filed same day
2025-02-21Kanner StevenofficerSale3,564 @ $1.35$5K−0.8% of holding−18.1%+33.0%431,556Form 4 · filed same day
2025-02-21Khan Ruhi AhmadofficerSale3,564 @ $1.35$5K−5.1% of holding−18.1%+33.0%66,936Form 4 · filed same day
2025-01-29Ryali SriramofficerPurchase17,360 @ $1.42$25Kownership Δ n/a−11.4%+45.8%17,360Form 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.

39 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
2026-02-20Sacks NataliedirectorAward / grant45,00045,000Form 4
2026-02-20Ryali SriramofficerAward / grant55,00072,360Form 4
2026-02-20Ryali SriramofficerAward / grant247,500247,500Form 4
2026-02-20Whiting NancydirectorAward / grant45,00045,000Form 4
2026-02-20Zheng RandirectorAward / grant45,00045,000Form 4
2026-02-20Richardson-Heron DaradirectorAward / grant45,00045,000Form 4
2026-02-20Albertson Tina M.officerAward / grant55,00069,589Form 4
2026-02-20Albertson Tina M.officerAward / grant247,500247,500Form 4
2026-02-20MCCLUNG BARBARA GofficerAward / grant45,000488,502Form 4
2026-02-20MCCLUNG BARBARA GofficerAward / grant202,500202,500Form 4
2026-02-20Kelly Timothy PofficerAward / grant45,00082,500Form 4
2026-02-20Kelly Timothy PofficerAward / grant202,500202,500Form 4
2026-02-20Khan Ruhi AhmadofficerAward / grant45,000111,936Form 4
2026-02-20Haurwitz Rachel E.directorAward / grant682,500682,500Form 4
2026-02-20Khan Ruhi AhmadofficerAward / grant202,500202,500Form 4
2026-02-20GUGGENHIME ANDREWdirectorAward / grant45,00045,000Form 4
2026-02-20Braunstein ScottdirectorAward / grant45,00045,000Form 4
2026-02-20Haurwitz Rachel E.directorAward / grant151,700447,150Form 4
2026-02-20JOHNSON DAVID LEEdirectorAward / grant45,00045,000Form 4
2025-02-20Kelly Timothy PofficerAward / grant170,000170,000Form 4
2025-02-20Khan Ruhi AhmadofficerAward / grant37,50070,500Form 4
2025-02-20Khan Ruhi AhmadofficerAward / grant170,000170,000Form 4
2025-02-20Sacks NataliedirectorAward / grant40,50040,500Form 4
2025-02-20Albertson Tina M.officerAward / grant14,58914,589Form 4
2025-02-20Albertson Tina M.officerAward / grant66,13766,137Form 4
2025-02-20MCCLUNG BARBARA GofficerAward / grant170,000170,000Form 4
2025-02-20Braunstein ScottdirectorAward / grant40,50040,500Form 4
2025-02-20Haurwitz Rachel E.directorAward / grant136,750295,450Form 4
2025-02-20MCCLUNG BARBARA GofficerAward / grant37,500447,066Form 4
2025-02-20JOHNSON DAVID LEEdirectorAward / grant40,50040,500Form 4
2025-02-20Kanner StevenofficerAward / grant37,500435,120Form 4
2025-02-20Kanner StevenofficerAward / grant170,000170,000Form 4
2025-02-20Whiting NancydirectorAward / grant40,50040,500Form 4
2025-02-20Richardson-Heron DaradirectorAward / grant40,50040,500Form 4
2025-02-20Haurwitz Rachel E.directorAward / grant618,250618,250Form 4
2025-02-20Zheng RandirectorAward / grant40,50040,500Form 4
2025-02-20GUGGENHIME ANDREWdirectorAward / grant40,50040,500Form 4
2025-02-20Kelly Timothy PofficerAward / grant37,50037,500Form 4
2025-01-10Ryali SriramofficerAward / grant300,000300,000Form 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.