CGEM Cullinan Therapeutics, Inc.
Executive Summary
Three institutional investors (Morgan Stanley, Invesco, RenTech) added to their CGEM positions in Q3 2025, while two (Fidelity, UBS) trimmed. The net buying of $1.3M is modest relative to the $741M market cap, and the cluster is dominated by passive/quant funds, limiting the signal's conviction. The historical calibration suggests high-impact scores in this segment have negative expected alpha, reinforcing a cautious read.
Key Financial Metrics
Institutional Positions
Net institutional flow: $1.3M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Morgan Stanley | ADD | +65.3% | $2.4M | $550.0K |
| Invesco | ADD | +69% | $607.0K | $151.0K |
| RenTech | ADD | +58.3% | $3.1M | $620.0K |
▼ Sellers (2)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Fidelity | TRIM | -74.6% | $29.0K | -$23.0K |
| UBS | TRIM | -39.6% | $2.3M | -$1.2M |
Actionable Insight
The cluster is too small and passive-dominated to drive a directional trade. Monitor for a higher-conviction catalyst (e.g., pipeline data, partnership) before acting. The 95% analyst bullish consensus is already priced in.
Key Facts
- 3 buyers added $1.3M in net new holdings; 2 sellers reduced by $1.25M
- Largest buyer: RenTech added $620K (+58.3% shares), now holds $3.1M
- Largest seller: UBS trimmed $1.2M (-39.6% shares), now holds $1.1M
- All participants are passive/quant funds — no activist or high-conviction active managers
- 13F data is as of 2025-09-30; positions may have been unwound since
Financial Impact
Net institutional buying of ~$1.3M against a $741M market cap (~0.2% of float)
Risk Factors
- 13F data is 45+ days stale; positions may have reversed
- No active manager participation reduces signal reliability
- Historical calibration shows negative expected alpha for high-impact scores in this segment
Market Snapshot
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-CGEM-2025-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
2d ago
|
Institutional Cluster
| $12.04 awaiting T+5 | awaiting T+5 | — | — |
|
Jun 10, 2026
3d ago
|
Press Release
| $13.20 awaiting T+5 | awaiting T+5 | — | — |
|
Jun 8, 2026
5d ago
|
8-K
| $13.51 awaiting T+5 | awaiting T+5 | — | — |
|
May 19, 2026
25d ago
|
Press Release
| $14.18 $15.52 | ▲ +9.49% | ▲ +7.19% | — |
|
May 18, 2026
25d ago
|
8-K
| $14.18 $15.52 | ▲ +9.49% | ▲ +7.19% | — |
|
May 18, 2026
25d ago
|
Press Release
| $14.18 $15.52 | ▲ +9.49% | ▲ +7.19% | — |
|
Mar 10, 2026
13w ago
|
Press Release
| $14.91 $13.44 | ▼ −9.86% | ▼ −8.95% | — |
|
Feb 24, 2026
15w ago
|
Insider Cluster
| $14.27 $15.73 | ▼ −10.23% | ▼ −11.26% | — |
|
Feb 24, 2026
15w ago
|
Insider Cluster
| $14.27 $15.73 | ▼ −10.23% | ▼ −11.26% | — |
|
Feb 24, 2026
15w ago
|
Insider Cluster
| $14.27 $15.73 | ▼ −10.23% | ▼ −11.26% | — |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Try SecBot Free Coming soon: SecBot Pro with alerts, watchlists, and API access