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Cabaletta Bio, Inc.

CABA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001759138

No open-market purchases or sales by Cabaletta Bio, Inc. insiders were filed in the last 90 days; 139 institutions reported holding it in 13F filings for Q2 2026, worth $490.4M in total; no superinvestor holds it.

13F holders, Q4 2021

Institutional positions in Cabaletta Bio, Inc. as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
66
+5 vs. Q3 2021
Shares held
18.2M
+794.3K (+4.6%) vs. Q3 2021
Total value
$68.9M
−$142.4M (−67.4%) vs. Q3 2021
New holders
19
19 more added
Sold out
14
15 more reduced

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CABA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 66 institutions
Q1 2021: 68 institutionsQ2 2021: 63 institutionsQ3 2021: 61 institutionsQ4 2021: 66 institutionsQ1 2022: 62 institutionsQ2 2022: 55 institutionsQ3 2022: 54 institutionsQ4 2022: 61 institutionsQ1 2023: 72 institutionsQ2 2023: 84 institutionsQ3 2023: 97 institutionsQ4 2023: 128 institutionsQ1 2024: 159 institutionsQ2 2024: 142 institutionsQ3 2024: 120 institutionsQ4 2024: 109 institutionsQ1 2025: 93 institutionsQ2 2025: 86 institutionsQ3 2025: 75 institutionsQ4 2025: 95 institutionsQ1 2026: 108 institutionsQ2 2026: 139 institutions
Value heldQ4 2021: $68.9M
Q1 2021: $180.1MQ2 2021: $135.5MQ3 2021: $211.3MQ4 2021: $68.9MQ1 2022: $36.9MQ2 2022: $17.8MQ3 2022: $7.76MQ4 2022: $183.9MQ1 2023: $203.9MQ2 2023: $470.5MQ3 2023: $622.6MQ4 2023: $1.10BQ1 2024: $870.9MQ2 2024: $380.0MQ3 2024: $226.7MQ4 2024: $87.2MQ1 2025: $50.3MQ2 2025: $110.7MQ3 2025: $162.0MQ4 2025: $166.9MQ1 2026: $227.5MQ2 2026: $490.4M
Institutions holding CABA and their total value by quarter
QuarterHoldersValue
Q2 2026139$490.4M
Q1 2026108$227.5M
Q4 202595$166.9M
Q3 202575$162.0M
Q2 202586$110.7M
Q1 202593$50.3M
Q4 2024109$87.2M
Q3 2024120$226.7M
Q2 2024142$380.0M
Q1 2024159$870.9M
Q4 2023128$1.10B
Q3 202397$622.6M
Q2 202384$470.5M
Q1 202372$203.9M
Q4 202261$183.9M
Q3 202254$7.76M
Q2 202255$17.8M
Q1 202262$36.9M
Q4 202166$68.9M
Q3 202161$211.3M
Q2 202163$135.5M
Q1 202168$180.1M

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Cabaletta Bio, Inc.; share changes are against Q3 2021.

Institutions holding CABA in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Adage Capital Partners GP, L.L.C.2,541,645$9.63M0.02%−500,000−16.4%Reduced
5AM Venture Management, LLC2,064,263$7.82M1.47%−295,000−12.5%Reduced
Citadel Advisors LLC1,499,623$5.68M0.01%+940,156+168.0%Added
Samlyn Capital, LLC1,383,381$5.24M0.08%+1,033,906+295.8%Added
Cormorant Asset Management, LP1,154,424$4.38M0.26%−457,199−28.4%Reduced
Ikarian Capital, LLC970,398$3.68M1.05%−217,500−18.3%Reduced
Point72 Asset Management, L.P.950,000$3.60M0.02%+50,000+5.6%Added
Vanguard Group Inc904,492$3.43M0.00%+173,711+23.8%Added
Redmile Group, LLC696,377$2.64M0.06%00.0%Unchanged
Baker Bros. Advisors LP662,063$2.51M0.01%00.0%Unchanged
Kynam Capital Management, LP644,583$2.44M1.31%+644,583New
Boxer Capital, LLC540,000$2.05M0.08%−1,063,361−66.3%Reduced
BlackRock Inc.504,190$1.91M0.00%+173,709+52.6%Added
Great Point Partners LLC472,433$1.79M0.40%+472,433New
Deerfield Management Company, L.P. (Series C)464,252$1.76M0.04%00.0%Unchanged
Nantahala Capital Management, LLC341,538$1.29M0.08%+341,538New
OrbiMed Advisors LLC302,509$1.15M0.01%00.0%Unchanged
Victory Capital Management Inc264,224$1.00M0.00%+44,438+20.2%Added
Susquehanna International Group, LLP153,307$581.0K0.00%+95,376+164.6%Added
Harbor Capital Advisors, Inc.142,787$541.0K0.20%+142,787New
Millennium Management LLC142,137$539.0K0.00%+20,513+16.9%Added
Altrinsic Global Advisors LLC140,000$531.0K0.02%+20,000+16.7%Added
Ghost Tree Capital, LLC135,000$512.0K0.20%+35,000+35.0%Added
Geode Capital Management, LLC122,606$464.0K0.00%+3,966+3.3%Added
Boothbay Fund Management, LLC103,350$392.0K0.01%−16,584−13.8%Reduced
Two Sigma Advisers, LP78,100$296.0K0.00%+38,000+94.8%Added
Walleye Capital LLC75,779$287.0K0.01%+75,779New
Virtu Financial LLC74,772$283.0K0.03%+74,772New
Two Sigma Investments, LP68,567$260.0K0.00%−10,763−13.6%Reduced
State Street Corp56,007$212.0K0.00%+14,000+33.3%Added
Caption Management, LLC52,750$200.0K0.01%+52,750New
Morgan Stanley50,571$191.0K0.00%−29,347−36.7%Reduced
Dimensional Fund Advisors LP39,942$151.0K0.00%+39,942New
683 Capital Management, LLC36,118$137.0K0.01%+36,118New
Simplex Trading, LLC34,238$129.0K0.00%+28,657+513.5%Added
Northern Trust Corp29,307$111.0K0.00%+4,337+17.4%Added
HSBC Holdings PLC23,586$91.0K0.00%−3,456−12.8%Reduced
Cubist Systematic Strategies, LLC22,880$87.0K0.00%+12,106+112.4%Added
Walleye Trading LLC22,905$87.0K0.00%+22,905New
Allspring Global Investments Holdings, LLC21,650$82.0K0.00%+21,650New
SG3 Management, LLC20,000$76.0K0.01%+20,000New
Wells Fargo & Company15,430$58.0K0.00%−7,554−32.9%Reduced
Qube Research & Technologies Ltd14,497$55.0K0.00%+14,497New
Goldman Sachs Group Inc13,174$50.0K0.00%−29,793−69.3%Reduced
IHT Wealth Management, LLC12,390$47.0K0.00%−675−5.2%Reduced
SG Americas Securities, LLC11,186$42.0K0.00%+11,186New
Alpine Global Management, LLC10,984$42.0K0.01%+10,984New
Veritable, L.P.10,500$40.0K0.00%00.0%Unchanged
Dynamic Technology Lab Private Ltd10,602$40.0K0.00%+10,602New
Bank of New York Mellon Corp10,295$39.0K0.00%00.0%Unchanged
ExodusPoint Capital Management, LP10,414$39.0K0.00%+10,414New
Advisor Group Holdings, Inc.10,022$38.0K0.00%+622+6.6%Added
BIT Capital GmbH10,000$37.9K0.00%+10,000New
Bank of America Corp7,111$27.0K0.00%−7,396−51.0%Reduced
Marshall Wace, LLP6,944$26.0K0.00%−57,211−89.2%Reduced
JPMorgan Chase & Co2,859$11.0K0.00%−15,346−84.3%Reduced
Citigroup Inc2,463$9.00K0.00%+466+23.3%Added
Tower Research Capital LLC (TRC)1,797$7.00K0.00%+355+24.6%Added
Endurance Wealth Management, Inc.800$3.00K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec340$1.29K0.00%00.0%Unchanged
First Manhattan Co500$1.00K0.00%00.0%Unchanged
Group One Trading, L.P.200$1.00K0.00%00.0%Unchanged
Captrust Financial Advisors200$1.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.45$00.00%00.0%Unchanged
Investors Research Corp66$00.00%00.0%Unchanged
Beaird Harris Wealth Management, LLC79$00.00%+79New
Wellington Management Group LLP0$00.00%−534,700−100.0%Sold out
Acuta Capital Partners, LLC0$00.00%−302,926−100.0%Sold out
Fred Alger Management, LLC0$00.00%−214,721−100.0%Sold out
Ergoteles LLC0$00.00%−50,733−100.0%Sold out
Silverarc Capital Management, LLC0$00.00%−42,022−100.0%Sold out
HRT Financial LP0$00.00%−25,318−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−12,324−100.0%Sold out
PDT Partners, LLC0$00.00%−10,956−100.0%Sold out
UBS Group AG0$00.00%−964−100.0%Sold out
US Bancorp0$00.00%−900−100.0%Sold out
Penserra Capital Management LLC0$00.00%−570−100.0%Sold out
Point72 Hong Kong Ltd0$00.00%−452−100.0%Sold out
Brewin Dolphin Ltd0$00.00%−278−100.0%Sold out
Deutsche Bank AG0$00.00%−10−100.0%Sold out