AI summary pending
View Full Filing (SEC EDGAR)Cabaletta Bio Inc
$3.57+8.2%
+$241.3M
Net Activity
+87.24% total shares
Institutions Holding
145
Popularity Rank
#3759
Avg Weight
0.09%
Total Value
$507.9M
145 institutions currently hold CABA, with 112 net buyers and 43 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
43
Net Buying Institutions
112
Top 5 by Value
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Across its top 20 institutional holders, CABA's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 10/100, avg. turnover score 46/100).
CABA ranks #3759 out of 37503 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
145 institutions disclose a position in CABA, but none treat it as a major bet — even Bain Capital Life Sciences Investors, LLC, its most concentrated holder, allocates just 3.2% of its own portfolio to it.
Jennison Associates LLC has added to its CABA position for two straight quarters, increasing it by $42.8M to reach $62.3M today.
Barclays PLC has trimmed its CABA position for two straight quarters, cutting it by $344.3K while still holding $139.0K.
CABA is up 8.2% today, and institutions have been net buyers of $241.3M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
CABA reported a net loss of $167.9M in its latest fiscal year.
+$281.9M
Total Buy Value
$29.2M
Total Sell Value
112
Net Buyers
43
Net Sellers
CABA
Q2 2026
Top 5 Institutional Movers
+$38.2M
+$28.9M
+$27.1M
+$23.1M
CABA does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
4
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Cormorant Asset Management, LP | 13G/A | 2026-08-14 | 6.0% |
| Bain Capital Life Sciences Opportunities III, LP | 13G/A | 2026-08-14 | 10.0% |
| T. Rowe Price Investment Management, Inc. | 13G/A | 2026-08-14 | 11.6% |
| Adage Capital Management, L.P. | 13G/A | 2026-08-12 | 8.4% |
| Millennium Management LLC | 13G/A | 2026-07-23 | 1.3% |
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)12674W109
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,419
Total reported value
$354.5B
Held by 4419 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,323
Total reported value
$864.3B
Held by 4323 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,246
Total reported value
$320.5B
Held by 4246 institutions — one of the most-tracked stocks on AlphaSMO
Access CABA's institutional ownership data programmatically:
REST API
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