Upstream Bio, Inc. · Brief

Next report

4 days

Nov 4 · before openest.Q3 FY26

Expected move

No implied move.

8 reportsHistory

1 of 5≥ implied

Mar 12 '25—▲+7.83%—

May 6 '25—▼−5.41%—

Aug 6 '25±30.2%▲+7.87%×0.26

Q3 FY25±17.0%▼−4.27%×0.25

Feb 11 '26±32.0%▼−47.18%×1.47

Q1 FY26±38.9%▲+3.38%×0.09

May 13 '26±10.6%▲+4.58%×0.43

Q2 FY26—▼−4.70%—

quarterimplied−50%0+50%realized×

Q2 FY26—▼−4.70%—

May '26±10.6%▲+4.58%×0.43

Q1 FY26±38.9%▲+3.38%×0.09

Feb '26±32.0%▼−47.18%×1.47

Q3 FY25±17.0%▼−4.27%×0.25

Aug '25±30.2%▲+7.87%×0.26

2 older reports

May '25—▼−5.41%—

Mar '25—▲+7.83%—

Shaded = implied · tick ▲▼ = realized · × = |realized| ÷ impliedSource: options EOD · implied at prior close · realized close to close

Nov 4 report · est.

Bull2 of 3

5disclosed supplier and customer ties in SEC filingsSEC filings

149managers reporting a position in the latest quarterly filings13F · Jun 30 '26

Bear2 of 3

3tracked funds holding UPBN-PORT · Aug 31 '26

5 of 23of the largest reporting managers cut their stake in the latest quarter13F · Jun 30 '26

AI captions · Sep 28 '26once per report · top 2 per case

UPB report session

No linked exposure.

Oct 23impliedImplied move: ±66.9% into Nov 4 earnings (Oct 23 close).Source

privateThesis 0 · Decisions 0 · Observations 0

No thesis.