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CLOSED · 13:55 ET
Market ClerkRecap
Sat Nov 14 · markets closed3 signals today368 insider buys this week · $138.2MCIRO short report next: Nov 15The week ahead

SPRO

Spero Therapeutics, Inc.
NASDAQ · HEALTH CARE · PHARMACEUTICAL PREPARATIONS
1.00
−0.02 −1.96%
USD · Nov 12, 06:40 p.m. ET

A free account adds a watchlist, alerts when insiders, Congress or short sellers move on your tickers, and a morning brief. Sign up

Short interest

FINRA · TWICE MONTHLY
Report dateShares shortChange% of shares outAvg daily volumeDays to cover
2026-08-311.2M−235K2.08%410K3.0
2026-08-141.4M−67K2.48%761K1.9
2026-07-311.5M−601K2.60%2.5M1.0
2026-07-152.1M−751K3.63%1.6M1.3

Short Watch, all names.

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