SEPNSepterna, Inc.

$38.32+144% 1Y

What is the market doing?

Mixed

No clear lean: rangebound and insiders net selling (often routine).

3 neutral
TrendRangeboundderived · Oct 9, 2026

Choppy, but holding above its 200-day average. Price is +25% vs its 200-day average.

Insider conviction−$72.3M (90 days to Oct 8, 2026)SEC EDGAR · Oct 8, 2026

Insiders were net sellers over the 90 days ending Oct 8, 2026; selling is often routine (taxes, diversification).

Short interest6.5% of sharesFINRA · Sep 15, 2026

Moderately shorted, settled Sep 15, 2026, more than a week of normal trading to cover, a crowded exit.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

1-year returntop 5% of the market
vs 200-day avgbetter than 89% of the market

Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.

How SEPN is trading

Septerna, Inc. is +144% over the past year while the S&P 500 is +18%: 126 points ahead of the market.

+144%

1-year return · S&P 500 +18%

vs 200-day average
+25%

vs 200-day average · a clear uptrend

RSI (14)
49

RSI (14) · neutral

Below its 52-week high
20%

Below its 52-week high

Oct 25, 2024$5.02 – $48.13 · dashed line: 200-day averageOct 9, 2026
Details›
Last close2026-10-09
$38.32
1 monthS&P 500 +2.7%
+1.4%
1 yearS&P 500 +18%
+144%
vs 50-day average$39.24
−2.4%
52-week high
$48.13
52-week low
$16.00
Annualised volatility
90%
Insider buying, net, 6 monthsForms 3/4/5 to 2026-10-08
−$63M
Calendar-year price return
YearReturn
2026 (year to date)+37%
2025+22%
Average return by calendar month, 2024–2026
MonthYearsPositiveAverage
Jan20 of 2−21%
Feb21 of 2−19%
Mar20 of 2−14%
Apr21 of 2+9.5%
May22 of 2+30%
Jun22 of 2+14%
Jul21 of 2+8.0%
Aug21 of 2+4.8%
Sep22 of 2+29%
Oct21 of 2+3.7%
Nov22 of 2+26%
Dec20 of 2−6.7%

End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.