Simplex Trading
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Simplex Trading’s Cabaletta Bio CABA Stock Holding History

Simplex Trading’s Portfolio CABA Stock Details CABA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.1M Sell
410,000
-147,300
-26% -$409K ﹤0.01% 2406
2025
Q4 		$1.22M Sell
557,300
-136,400
-20% -$338K ﹤0.01% 2433
2025
Q3 		$1.62M Buy
693,700
+338,000
+95% +$580K ﹤0.01% 2533
2025
Q2 		$540K Buy
355,700
+305,700
+611% +$477K ﹤0.01% 3427
2025
Q1 		$69K Sell
50,000
-46,800
-48% -$99.7K ﹤0.01% 5458
2024
Q4 		$219K Buy
96,800
+88,300
+1,039% +$310K ﹤0.01% 4417
2024
Q3 		$40K Sell
8,500
-43,400
-84% -$251K ﹤0.01% 6076
2024
Q2 		$388K Sell
51,900
-15,200
-23% -$186K ﹤0.01% 3926
2024
Q1 		$1.14M Buy
67,100
+40,900
+156% +$878K ﹤0.01% 2972
2023
Q4 		$594K Buy
26,200
+8,000
+44% +$135K ﹤0.01% 3510
2023
Q3 		$277K Buy
18,200
+10,600
+139% +$145K ﹤0.01% 4011
2023
Q2 		$98K Sell
7,600
-4,400
-37% -$47.8K ﹤0.01% 5099
2023
Q1 		$99K Buy
12,000
+2,700
+29% +$25.3K ﹤0.01% 5168
2022
Q4 		$86K Buy
9,300
+6,000
+182% +$21.8K ﹤0.01% 5261
2022
Q3 		$2K Buy
+3,300
New +$3.97K ﹤0.01% 9241
2021
Q4 		– Sell
-200
Closed -$1K – 10504
2021
Q3 		$1K Hold
200
– – ﹤0.01% 9622
2021
Q2 		$1K Buy
200
+198
+9,900% +$1.95K ﹤0.01% 9799
2021
Q1 		$2K Buy
+2
New +$24 ﹤0.01% 8426

Other funds holding CABA

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Simplex Trading's CABA Position: Q4 2024 in Review

Simplex Trading sold out of Cabaletta Bio (CABA) in Q4 2024, closing a stake of 7,638 shares — an estimated $26.8K sold.

Simplex Trading first reported a position in CABA in Q1 2021 and held it in 9 quarters. The position peaked at $129K in Q4 2021. 108 funds tracked by Wall St. Rank hold CABA as of Q4 2024.

  • Simplex Trading reported no remaining Cabaletta Bio position as of Q4 2024 after selling out during the quarter.
  • Simplex Trading sold 7,638 Cabaletta Bio shares in Q4 2024, an estimated $26.8K.
  • Simplex Trading first reported a position in Cabaletta Bio in Q1 2021 and held it in 9 quarters.
  • Simplex Trading's Cabaletta Bio position peaked at $129K in Q4 2021.
  • 108 funds tracked by Wall St. Rank held Cabaletta Bio as of Q4 2024.

Based on Simplex Trading's 13F filing for Q4 2024, filed 11 Feb 2025.