BlackRock's 7.7% passive stake is routine for a large asset manager. No prior BlackRock 13G for CABA is in the provided context, so the direction of change cannot be assessed. Monitor for any future 13D conversion or significant stake reduction.
Price Chart
Executive Summary
BlackRock filed an amended Schedule 13G for Cabaletta Bio, reporting beneficial ownership of 13,013,495 shares (7.7% of common stock) as of September 30, 2026. This is a routine passive stake update by a large index/asset manager; no prior BlackRock 13G for CABA is in the provided context for comparison, so the direction of change is unknown. The filing has no material directional impact.
Key Financial Metrics
Key Facts
- BlackRock, Inc. filed an amended Schedule 13G for Cabaletta Bio, Inc.
- BlackRock reported beneficial ownership of 13,013,495 shares of common stock.
- The stake represents 7.7% of the outstanding common shares as of September 30, 2026.
- BlackRock disclaims beneficial ownership of shares held by its subsidiaries and certifies the securities were acquired and held in the ordinary course of business, not to change or influence control.
- The filing is made under Rule 13d-1(b) as a passive investment.
Financial Impact
BlackRock holds 7.7% of Cabaletta Bio's outstanding shares, valued at approximately $19.2 million based on the $249M market cap snapshot.
Risk Factors
- No prior BlackRock 13G for CABA is available in the provided context to compare stake changes.
- As a passive filer, BlackRock is unlikely to engage in activist activity.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 5 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0002012383-26-003765 |
| Document: Item_7.txt | 0002012383-26-003765 |
| Document: 0002012383-26-003765-index-headers.html | 0002012383-26-003765 |
| Document: 0002012383-26-003765-index.html | 0002012383-26-003765 |
| Document: 0002012383-26-003765.txt | 0002012383-26-003765 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G/A | $1.50 | awaiting T+5 | awaiting T+5 | $1.51 (+0.67%) |
Oct 27, 2026 4d ago | SC 13G/A | $1.52 | awaiting T+5 | awaiting T+5 | $1.51 (−0.66%) |
Sep 14, 2026 6w ago | 8-K | $2.91 $2.46 | ▼ −15.46% | ▼ −15.57% | $1.51 (−48.11%) |
Aug 15, 2026 11w ago | Institutional Cluster | $2.89 $3.10 | ▲ +7.27% | ▲ +8.46% | $1.51 (−47.75%) |
Aug 13, 2026 11w ago | 8-K | No price | awaiting T+5 | awaiting T+5 | No price |
Aug 13, 2026 11w ago | Press Release | $2.71 $3.19 | ▲ +17.71% | ▲ +19.68% | $1.51 (−44.28%) |
Jun 11, 2026 20w ago | Institutional Cluster | $3.01 $2.84 | ▼ −5.65% | ▼ −6.32% | $1.51 (−49.83%) |
Jun 3, 2026 21w ago | 8-K | $3.58 $3.04 | ▼ −15.08% | ▼ −11.26% | $1.51 (−57.82%) |
Jun 1, 2026 21w ago | DEFA14A | $3.67 $3.25 | ▼ −11.44% | ▼ −8.69% | $1.51 (−58.86%) |
May 14, 2026 24w ago | 8-K | No price | awaiting T+5 | awaiting T+5 | No price |
US Market Status
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