Sarepta Therapeutics Inc (SRPT)
Sarepta Therapeutics, Inc. is a leading biopharmaceutical company headquartered in Cambridge, Massachusetts, specializing in the development of innovative RNA-targeted therapies and gene therapies for rare genetic disorders. With a robust pipeline and a commitment to addressing unmet medical needs, Sarepta is at the forefront of transforming treatment paradigms for conditions such as Duchenne muscular dystrophy (DMD). The company leverages cutting-edge science and technology to create novel therapeutics, positioning itself as a key player in the evolving landscape of genetic medicine.
Stock Price Trends
Stock price trends estimated using linear regression.
Key facts
- The primary trend is decreasing.
- The decline rate of the primary trend is 83.42% per annum.
- SRPT price at the close of February 6, 2026 was $18.50 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 54.39% per annum.
- SRPT price at the close of February 6, 2026 was inside the secondary price channel.
- The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.
Linear Regression Model
Model equation:
Yi = α + β × Xi + εi
Top border of price channel:
Exp(Yi) = Exp(a + b × Xi + 2 × s)
Bottom border of price channel:
Exp(Yi) = Exp(a + b × Xi – 2 × s)
where:
i - observation number
Yi - natural logarithm of SRPT price
Xi - time index, 1 day interval
σ - standard deviation of εi
a - estimator of α
b - estimator of β
s - estimator of σ
Exp() - calculates the exponent of e
Primary Trend
Start date: June 21, 2024
End date: January 5, 2026
a = 11.4371
b = -0.0049
s = 0.3304
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0049) – 1
= -83.42%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.3304) – 1
= 274.96%
June 21, 2024 calculations
Top border of price channel:
Exp(Y847)
= Exp(a + b × X847 + 2 × s)
= Exp(a + b × 1,229 + 2 × s)
= Exp(11.4371 + -0.0049 × 1,229 + 2 × 0.3304)
= Exp(6.0472)
= $422.91
Bottom border of price channel:
Exp(Y847)
= Exp(a + b × X847 – 2 × s)
= Exp(a + b × 1,229 – 2 × s)
= Exp(11.4371 + -0.0049 × 1,229 – 2 × 0.3304)
= Exp(4.7255)
= $112.79
January 5, 2026 calculations
Top border of price channel:
Exp(Y1,232)
= Exp(a + b × X1,232 + 2 × s)
= Exp(a + b × 1,792 + 2 × s)
= Exp(11.4371 + -0.0049 × 1,792 + 2 × 0.3304)
= Exp(3.2753)
= $26.45
Bottom border of price channel:
Exp(Y1,232)
= Exp(a + b × X1,232 – 2 × s)
= Exp(a + b × 1,792 – 2 × s)
= Exp(11.4371 + -0.0049 × 1,792 – 2 × 0.3304)
= Exp(1.9537)
= $7.05
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 83.42% per annum.
- SRPT price at the close of February 6, 2026 was $18.50 and was inside the primary price channel.
Secondary Trend
Start date: June 20, 2025
End date: February 4, 2026
a = 0.9408
b = 0.0012
s = 0.1136
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0012) – 1
= 54.39%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1136) – 1
= 57.52%
June 20, 2025 calculations
Top border of price channel:
Exp(Y1,096)
= Exp(a + b × X1,096 + 2 × s)
= Exp(a + b × 1,593 + 2 × s)
= Exp(0.9408 + 0.0012 × 1,593 + 2 × 0.1136)
= Exp(3.0634)
= $21.40
Bottom border of price channel:
Exp(Y1,096)
= Exp(a + b × X1,096 – 2 × s)
= Exp(a + b × 1,593 – 2 × s)
= Exp(0.9408 + 0.0012 × 1,593 – 2 × 0.1136)
= Exp(2.6091)
= $13.59
February 4, 2026 calculations
Top border of price channel:
Exp(Y1,253)
= Exp(a + b × X1,253 + 2 × s)
= Exp(a + b × 1,822 + 2 × s)
= Exp(0.9408 + 0.0012 × 1,822 + 2 × 0.1136)
= Exp(3.3359)
= $28.10
Bottom border of price channel:
Exp(Y1,253)
= Exp(a + b × X1,253 – 2 × s)
= Exp(a + b × 1,822 – 2 × s)
= Exp(0.9408 + 0.0012 × 1,822 – 2 × 0.1136)
= Exp(2.8816)
= $17.84
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 54.39% per annum.
- SRPT price at the close of February 6, 2026 was inside the secondary price channel.