Cabaletta Bio, Inc. - Common Stock, par value $0.00001 per share (CABA)

Historical Holders from Q4 2019 to Q3 2025

Symbol
CABA on Nasdaq
Type / Class
Equity / Common Stock, par value $0.00001 per share
Shares outstanding
96,015,846
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
71,298,009
Holdings value
$166,850,266
% of all portfolios
0%
Number of holders
75
Number of buys
34
Number of sells
53
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Cabaletta Bio, Inc. - Common Stock, par value $0.00001 per share (CABA) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
JENNISON ASSOCIATES LLC 8.9% +24% $29,447,817 +$5,797,046 12,584,537 +25% Jennison Associates LLC 30 Sep 2025
PRUDENTIAL FINANCIAL INC 8.9% +21% $29,447,817 +$5,132,486 12,584,537 +21% PRUDENTIAL FINANCIAL INC 30 Sep 2025
T. Rowe Price Investment Management, Inc. 11% +24% $24,243,163 +$4,674,939 10,360,326 +24% T. Rowe Price Investment Management, Inc. 31 Oct 2025
Bain Capital Life Sciences Opportunities III, LP 10% $15,676,942 9,677,125 Bain Capital Life Sciences Opportunities III, LP 30 Jun 2025
Cormorant Asset Management, LP 10% +90% $22,445,240 +$10,745,240 9,591,983 +92% Cormorant Asset Management, LP 30 Sep 2025
Adage Capital Management, L.P. 10% $13,683,922 9,002,580 Adage Capital Management, L.P. 30 Jun 2025
Alyeska Investment Group, L.P. 6% -39% $13,572,000 -$7,264,219 5,800,000 -35% Alyeska Investment Group, L.P. 30 Sep 2025
VANGUARD GROUP INC 3.8% $4,554,960 3,450,727 The Vanguard Group 30 Jun 2025
CITADEL ADVISORS LLC 3.4% -36% $7,371,644 -$3,903,787 3,150,275 -35% Kenneth Griffin 30 Sep 2025
Nichtberger Steven 3.3% $4,005,539 3,034,499 Nichtberger Steven 30 Jun 2025
BlackRock, Inc. 1% -86% $1,180,934 -$3,303,449 894,647 -74% BlackRock, Inc. 30 Jun 2025
As of 30 Sep 2025 Cabaletta Bio, Inc. - Common Stock, par value $0.00001 per share (CABA) has 75 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 71,298,009 shares of 96,015,846 outstanding shares and own 74% of the company stock as of 30 Sep 2025.

Top 25 institutional shareholders of Cabaletta Bio, Inc. - Common Stock, par value $0.00001 per share (CABA) own 70% of the company based on 13F filings as of 30 Sep 2025

Filer Ownership Holdings Value Nb Shares Share Change %
Bain Capital Life Sciences Investors, LLC 10% $22,644,473 9,677,125 0%
ADAGE CAPITAL PARTNERS GP, L.L.C. 9.2% $20,661,634 8,829,758 0%
JENNISON ASSOCIATES LLC 8.9% $19,884,236 8,497,537 +41%
T. Rowe Price Investment Management, Inc. 8.7% $19,569,000 8,362,489 +23%
Cormorant Asset Management, LP 5.2% $11,700,000 5,000,000 0%
VANGUARD GROUP INC 4.4% $9,806,376 4,190,759 +21%
Woodline Partners LP 2.2% $4,996,714 2,135,348 +75%
HEIGHTS CAPITAL MANAGEMENT, INC 2.2% $4,877,033 2,084,202 -34%
HEIGHTS CAPITAL MANAGEMENT, INC 2.2% $4,877,033 2,084,202 -34%
BlackRock, Inc. 1.7% $3,792,840 1,620,872 +67%
SUPERSTRING CAPITAL MANAGEMENT LP 1.6% $3,614,189 1,544,525 +46%
MORGAN STANLEY 1.5% $3,450,742 1,474,676 +11%
RENAISSANCE TECHNOLOGIES LLC 1.4% $3,134,250 1,339,423 +962%
MARSHALL WACE, LLP 1.4% $3,102,942 1,326,043 +594%
Alyeska Investment Group, L.P. 1.4% $3,042,000 1,300,000 -73%
PRICE T ROWE ASSOCIATES INC /MD/ 1.3% $3,031,000 1,294,949 -41%
Schonfeld Strategic Advisors LLC 1.1% $2,443,353 1,044,169 -30%
GEODE CAPITAL MANAGEMENT, LLC 0.96% $2,154,082 920,340 +66%
Opaleye Management Inc. 0.84% $1,892,784 808,882
CITADEL ADVISORS LLC 0.73% $1,650,788 705,465 -58%
Burkehill Global Management, LP 0.73% $1,638,000 700,000 -63%
MILLENNIUM MANAGEMENT LLC 0.72% $1,607,142 686,813 -20%
JPMORGAN CHASE & CO 0.56% $1,258,098 537,649 +565%
TWO SIGMA INVESTMENTS, LP 0.49% $1,100,911 470,475 +86%
UBS Group AG 0.42% $947,982 405,120 -14%

Institutional Holders of Cabaletta Bio, Inc. - Common Stock, par value $0.00001 per share (CABA) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 71,298,009 $166,850,266 -$6,975,222 $2.34 75
2025 Q2 72,777,604 $110,698,611 +$55,724,861 $1.52 85
2025 Q1 36,304,416 $50,331,238 -$5,413,451 $1.38 91
2024 Q4 38,433,072 $87,225,765 -$42,826,625 $2.27 104
2024 Q3 48,049,164 $226,749,029 -$34,734,599 $4.72 116
2024 Q2 50,803,155 $380,009,358 -$32,110,485 $7.48 137
2024 Q1 51,050,461 $870,920,794 +$18,932,337 $17.06 158
2023 Q4 13,929 $316,188 $22.70 1
2023 Q3 40,903,206 $622,567,029 +$72,529,447 $15.22 96
2023 Q2 36,439,842 $470,446,385 +$156,176,109 $12.91 83
2023 Q1 24,550,692 $203,032,448 +$37,663,399 $8.27 68
2022 Q4 19,877,471 $183,864,776 +$77,864,903 $9.25 58
2022 Q3 11,480,868 $7,459,359 -$5,439,395 $0.6491 41
2022 Q2 16,793,402 $17,802,000 -$3,028,529 $1.06 46
2022 Q1 18,097,444 $36,731,000 -$1,708,091 $2.03 51
2021 Q4 18,158,070 $68,820,000 -$10,112,110 $3.79 58
2021 Q3 17,374,979 $211,261,380 +$20,908,305 $12.16 58
2021 Q2 15,643,357 $134,523,391 -$5,543,238 $8.60 58
2021 Q1 16,074,396 $178,421,440 +$381,267 $11.10 64
2020 Q4 15,518,470 $193,656,469 -$3,199,162 $12.48 53
2020 Q3 16,353,803 $177,272,014 -$992,123 $10.84 53
2020 Q2 16,442,959 $183,160,097 +$5,139,607 $11.14 51
2020 Q1 16,009,620 $116,871,000 -$3,057,825 $7.30 41
2019 Q4 16,265,458 $227,227,000 +$175,618,187 $13.97 40