RNACCartesian Therapeutics, Inc.Healthcare · Biotechnologyas of 2026-09-16
Horizon

Issued 2026-09-16 at $7.91 · now $7.91 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, RNAC has typically landed between $5.47 and $11.40 — a range of −30.9% to +44.2% from the issuance price $7.91.

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

2,552 overlapping 1 month windows · 2016-06-222026-08-17 · 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 ($7.91) — 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 RNAC has typically landed a month from the 2026-09-16 close of $7.91 — the range is history, not a prediction.

$5.47worst · -30.9%$11.4best · +44.2%
  • now $7.91 (+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). $7.44 (-5.9%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $6.35$8.54
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $5.47$11.4
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 2,552 windows spanning 2016-06-22 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
2018-10-01−67.1%−67.1%+0.0%
2018-10-02−66.8%−66.8%+0.0%
2020-02-18−65.3%−65.3%+4.2%
3 best
2019-12-18+138.4%+0.0%+138.4%
2019-12-17+119.9%−3.3%+119.9%
2019-12-16+106.6%−3.9%+106.6%

2,552 overlapping windows · 2016-06-222026-09-16 · 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 ~11 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%
+5.7%
n=10
Feb
60%
+1.3%
n=10
Mar
40%
−10.1%
n=10
Apr
40%
−7.8%
n=10
May
70%
+16.1%
n=10
Jun
50%
+8.8%
n=10
Jul
27%
−9.1%
n=11
Aug
73%
+6.7%
n=11
Sep
45%
+0.1%
n=11
Oct
50%
−2.0%
n=10
Nov
50%
−3.0%
n=10
Dec
20%
−10.8%
n=10

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$12$62026-01-06: 3 insider sales, $259K — Brunn Carsten, Davis Blaine, Miljkovic Milos2025-12-04: 1 insider purchase, $206K — BARABE TIMOTHY C2025-12: 1 open-market purchase, $206K2026-01: 3 open-market sales, $259K↑ buys↓ salesdirector Brunn Carsten — Sale on 2026-01-06, filed 2 days after the tradeofficer Davis Blaine — Sale on 2026-01-06, filed 2 days after the tradeofficer Miljkovic Milos — Sale on 2026-01-06, filed 2 days after the tradedirector BARABE TIMOTHY C — Purchase on 2025-12-04, filed 4 days after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-01-06Brunn CarstendirectorSale23,766 @ $6.82$162K−6.8% of holding−8.7%+28.1%323,530Form 4 · filed 2 days after the trade
2026-01-06Davis BlaineofficerSale10,591 @ $6.82$72K−8.0% of holding−8.7%+28.1%121,220Form 4 · filed 2 days after the trade
2026-01-06Miljkovic MilosofficerSale3,573 @ $6.82$24K−5.7% of holding−8.7%+28.1%58,820Form 4 · filed 2 days after the trade
2025-12-04BARABE TIMOTHY CdirectorPurchase30,000 @ $6.86$206K+123.1% of holding+0.6%−23.7%54,366Form 4 · filed 4 days after the trade
2025-04-11SPRINGER TIMOTHY AdirectorPurchase36,338 @ $10.77$391K+5.9% of holding−14.3%−35.9%656,513Form 4 · filed same day
2025-04-11SPRINGER TIMOTHY AdirectorPurchase6,412 @ $10.77$69K+0.1% of holding−14.3%−35.9%8,643,685Form 4 · filed same day
2025-04-10SPRINGER TIMOTHY AdirectorPurchase45,144 @ $10.43$471K+7.9% of holding−10.4%−35.2%616,724Form 4 · filed 1 day after the trade
2025-04-10SPRINGER TIMOTHY AdirectorPurchase7,966 @ $10.43$83K+0.1% of holding−10.4%−35.2%8,636,664Form 4 · filed 1 day after the trade
2025-04-10SPRINGER TIMOTHY AdirectorPurchase3,451 @ $10.92$38K+0.6% of holding−10.4%−35.2%620,175Form 4 · filed 1 day after the trade
2025-04-10SPRINGER TIMOTHY AdirectorPurchase609 @ $10.92$7K+0.0% of holding−10.4%−35.2%8,637,273Form 4 · filed 1 day after the trade
2025-04-09SPRINGER TIMOTHY AdirectorPurchase41,604 @ $9.43$392K+7.9% of holding−15.7%−34.1%571,402Form 4 · filed 2 days after the trade
2025-04-09SPRINGER TIMOTHY AdirectorPurchase7,342 @ $9.43$69K+0.1% of holding−15.7%−34.1%8,628,667Form 4 · filed 2 days after the trade
2025-04-09SPRINGER TIMOTHY AdirectorPurchase178 @ $9.95$2K+0.0% of holding−15.7%−34.1%571,580Form 4 · filed 2 days after the trade
2025-04-09SPRINGER TIMOTHY AdirectorPurchase31 @ $9.95$308+0.0% of holding−15.7%−34.1%8,628,698Form 4 · filed 2 days after the trade
2025-03-20SPRINGER TIMOTHY AdirectorPurchase54,889 @ $15.59$856K+0.6% of holding−26.2%−59.1%8,621,325Form 4 · filed same day
2025-03-19SPRINGER TIMOTHY AdirectorPurchase20,234 @ $14.97$303K+0.2% of holding−25.2%−50.8%8,566,436Form 4 · filed 1 day after the trade
2025-03-18SPRINGER TIMOTHY AdirectorPurchase14,740 @ $14.42$213K+0.2% of holding−21.6%−55.5%8,546,202Form 4 · filed 2 days after the trade
2025-01-14SPRINGER TIMOTHY AdirectorPurchase4,022 @ $18.00$72K+0.0% of holding+0.9%−39.0%8,531,462Form 4 · filed 1 day after the trade
2025-01-13SPRINGER TIMOTHY AdirectorPurchase8,983 @ $17.78$160K+0.1% of holding−0.6%−35.6%8,527,440Form 4 · filed 2 days after the trade
2025-01-13SPRINGER TIMOTHY AdirectorPurchase7,962 @ $16.86$134K+0.1% of holding−0.6%−35.6%8,518,457Form 4 · filed 2 days after the trade
2025-01-06Brunn CarstendirectorSale8,708 @ $16.83$147K−4.1% of holding+4.9%−28.9%204,096Form 4 · filed 1 day after the trade
2025-01-06Davis BlaineofficerSale4,028 @ $16.83$68K−4.1% of holding+4.9%−28.9%94,811Form 4 · filed 1 day after the trade
2025-01-06Kurtoglu MetinofficerSale2,458 @ $16.83$41K−3.8% of holding+4.9%−28.9%62,258Form 4 · filed 1 day after the trade
2025-01-06Jewell Christopher MofficerSale1,286 @ $16.83$22K−2.3% of holding+4.9%−28.9%53,490Form 4 · filed 1 day after the trade
2025-01-06Miljkovic MilosofficerSale948 @ $16.83$16K−2.6% of holding+4.9%−28.9%35,393Form 4 · filed 1 day after the trade
2025-01-06English EmilyofficerSale906 @ $16.83$15K−2.2% of holding+4.9%−28.9%40,226Form 4 · filed 1 day after the trade
2025-01-03Brunn CarstendirectorSale8,563 @ $16.72$143K−3.9% of holding+12.8%−24.3%212,804Form 4 · filed 4 days after the trade
2025-01-03Davis BlaineofficerSale3,961 @ $16.72$66K−3.9% of holding+12.8%−24.3%98,839Form 4 · filed 4 days after the trade
2025-01-03Kurtoglu MetinofficerSale2,417 @ $16.72$40K−3.6% of holding+12.8%−24.3%64,716Form 4 · filed 4 days after the trade
2025-01-03Jewell Christopher MofficerSale1,264 @ $16.72$21K−2.3% of holding+12.8%−24.3%54,776Form 4 · filed 4 days after the trade
2025-01-03Miljkovic MilosofficerSale932 @ $16.72$16K−2.5% of holding+12.8%−24.3%36,341Form 4 · filed 4 days after the trade
2025-01-03English EmilyofficerSale891 @ $16.72$15K−2.1% of holding+12.8%−24.3%41,132Form 4 · filed 4 days after the trade
2024-12-23SPRINGER TIMOTHY AdirectorPurchase5,181 @ $19.00$98K+0.1% of holding−0.4%−48.8%8,507,895Form 4 · filed same day
2024-12-20SPRINGER TIMOTHY AdirectorPurchase21,800 @ $18.94$413K+0.3% of holding−1.9%−43.9%8,502,714Form 4 · filed 3 days after the trade
2024-12-19SPRINGER TIMOTHY AdirectorPurchase11,303 @ $17.39$197K+0.1% of holding−3.6%−48.7%8,467,009Form 4 · filed 4 days after the trade
2024-12-19SPRINGER TIMOTHY AdirectorPurchase10,529 @ $18.35$193K+0.1% of holding−3.6%−48.7%8,477,538Form 4 · filed 4 days after the trade
2024-12-19SPRINGER TIMOTHY AdirectorPurchase3,376 @ $18.93$64K+0.0% of holding−3.6%−48.7%8,480,914Form 4 · filed 4 days after the trade
2024-12-10Kurtoglu MetinofficerSale2,901 @ $24.35$71K−5.4% of holding−16.4%−54.0%51,033Form 4 · filed 1 day after the trade
2024-12-09Kurtoglu MetinofficerSale6,224 @ $25.26$157K−10.1% of holding−27.4%−58.6%55,572Form 4 · filed 2 days after the trade
2024-12-09Kurtoglu MetinofficerSale4,539 @ $25.83$117K−8.2% of holding−27.4%−58.6%51,033Form 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.

85 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
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise22,74033,662Form 4
2026-04-02Kalayoglu MuratdirectorOption exercise22,74033,662Form 4
2026-04-02Kalayoglu MuratdirectorOption exercise758,0015,313,261Form 4
2026-04-02Kalayoglu MuratdirectorOption exercise22,74033,662Form 4
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise758,0015,313,261Form 4
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise22,74033,662Form 4
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise758,0015,313,261Form 4
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise758,0015,313,261Form 4
2026-04-02Hoge ElizabethtenPercentOwnerOption exercise22,74033,662Form 4
2026-04-02Kalayoglu MuratdirectorOption exercise758,0015,313,261Form 4
2026-03-13Singer MichaeldirectorGift6,55549,578Form 4
2026-01-02Singer MichaeldirectorAward / grant7,8007,800Form 4
2026-01-02English EmilyofficerAward / grant24,00094,226Form 4
2026-01-02English EmilyofficerAward / grant71,00071,000Form 4
2026-01-02Malik KemaldirectorAward / grant2,60011,133Form 4
2026-01-02Miljkovic MilosofficerAward / grant27,00062,393Form 4
2026-01-02Miljkovic MilosofficerAward / grant77,00077,000Form 4
2026-01-02BARABE TIMOTHY CdirectorAward / grant2,60056,966Form 4
2026-01-02BARABE TIMOTHY CdirectorAward / grant7,8007,800Form 4
2026-01-02Seymour June AnnofficerAward / grant19,00019,000Form 4
2026-01-02Malik KemaldirectorAward / grant7,8007,800Form 4
2026-01-02Seymour June AnnofficerAward / grant6,5006,500Form 4
2026-01-02Davis BlaineofficerAward / grant37,000131,811Form 4
2026-01-02Davis BlaineofficerAward / grant109,000109,000Form 4
2026-01-02DeSilva Nishan MdirectorAward / grant2,60011,366Form 4
2026-01-02DeSilva Nishan MdirectorAward / grant7,8007,800Form 4
2026-01-02ZENNER PATRICK JdirectorAward / grant2,60012,974Form 4
2026-01-02ZENNER PATRICK JdirectorAward / grant7,8007,800Form 4
2026-01-02Brunn CarstendirectorAward / grant143,200347,296Form 4
2026-01-02Brunn CarstendirectorAward / grant415,700415,700Form 4
2026-01-02Kalayoglu MuratdirectorAward / grant2,600511,577Form 4
2026-01-02Kalayoglu MuratdirectorAward / grant7,8007,800Form 4
2026-01-02SPRINGER TIMOTHY AdirectorAward / grant2,6008,646,285Form 4
2026-01-02SPRINGER TIMOTHY AdirectorAward / grant7,8007,800Form 4
2026-01-02Singer MichaeldirectorAward / grant2,60056,133Form 4
2025-12-30English EmilyofficerOption exercise7,50070,226Form 4
2025-12-30English EmilyofficerOption exercise7,50019,369Form 4
2025-12-30English EmilyofficerOption exercise7,50019,369Form 4
2025-12-16Bot Adrian IondirectorAward / grant5,8005,800Form 4
2025-12-16Bot Adrian IondirectorAward / grant17,20017,200Form 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.