The Oct 29 hearing on Marshall and McGahee is the next binary catalyst — if either expert's causation opinions are excluded, it would materially weaken that party's damages case. Monitor the hearing outcome and any subsequent settlement discussions.
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Executive Summary
The court issued a pre-trial ruling on multiple Daubert motions in the Pegasystems v. Appian trade-secrets and false-advertising case. The ruling partially excludes Appian's expert Robinson (trade-secrets opinions) and Pega's expert Gianturco (rebuttal), while allowing most other experts to testify. The court also flagged serious concerns about the causation and damages opinions of both parties' central experts (Marshall for Appian, McGahee for Pega), scheduling a hearing to decide whether those opinions should be excluded. This is an interlocutory procedural ruling — no final judgment, no damages awarded, no injunction — and leaves the case pending with significant uncertainty about the admissibility of the core damages evidence.
Court Ruling Details
Key Facts
- Ruling addresses eight Daubert motions in limine and one motion to exclude expert portions
- Appian's expert Robinson excluded on trade-secrets opinions and on interpreting 'widely available' and 'publicly available' statements
- Pega's expert Gianturco excluded as moot after Robinson's exclusion
- Pega's expert Vanderhart's $2 billion disgorgement opinion excluded; $109 million disgorgement and lost-profits opinions allowed
- Court expressed serious concerns about Appian's expert Marshall's causation analysis for 95 competitive opportunities — hearing set for Oct 29, 2026
- Court expressed serious concerns about Pega's expert McGahee's damages causation analysis — hearing set for Oct 29, 2026
- No damages awarded, no injunction issued, no final judgment — case remains pending
- Appian's $2 billion disgorgement theory previously ruled out at summary judgment
Financial Impact
No damages awarded. Appian's $2 billion disgorgement theory excluded; $109 million disgorgement/lost-profits theory remains contingent on Marshall's causation opinions, which are under threat of exclusion. Pega's damages theory (McGahee) also under threat.
Risk Factors
- If Marshall's causation opinions are excluded, Appian's damages case collapses — no causal link between Pega's statements and lost sales
- If McGahee's causation opinions are excluded, Pega's damages case collapses — no causal link between Appian's statements and slowed growth
- Case remains in pre-trial phase; trial date not set; litigation overhang continues
- Both sides face binary expert-admissibility risk at the Oct 29 hearing
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 court opinion.
| Document | Accession Number |
|---|---|
| COURT-RULING Data (Synthetic) | court-43aa997fe5-APPN |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 6d ago | Court Ruling | $52.35 | awaiting T+20 | — | $49.94 (−4.60%) |
Oct 21, 2026 7d ago | Court Ruling | $51.15 | awaiting T+20 | — | $49.94 (−2.37%) |
Oct 15, 2026 12d ago | Press Release | $41.17 | awaiting T+20 | — | $49.94 (+21.30%) |
Oct 7, 2026 20d ago | 144 | $38.66 | awaiting T+20 | — | $49.94 (+29.18%) |
Aug 15, 2026 10w ago | Institutional Cluster | $34.91 $37.92 | ▲ +8.62% | ▲ +10.60% | $49.94 (+43.05%) |
Aug 6, 2026 11w ago | 8-K | $30.41 $40.82 | ▲ +34.23% | ▲ +33.63% | $49.94 (+64.22%) |
Jun 11, 2026 19w ago | Institutional Cluster | $23.64 $25.24 | ▲ +6.77% | ▲ +4.88% | $49.94 (+111.25%) |
Jun 8, 2026 20w ago | 144 | $24.05 $24.68 | ▲ +2.62% | ▲ +1.17% | $49.94 (+107.65%) |
May 7, 2026 24w ago | 8-K | $23.76 $24.07 | ▲ +1.30% | ▼ −1.83% | $49.94 (+110.19%) |
Apr 22, 2026 26w ago | DEFA14A | $21.60 $21.34 | ▼ −1.20% | ▼ −5.84% | $49.94 (+131.20%) |
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