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Cabaletta Bio, Inc.

CABA Net buying
CIK 0001759138 #3036 in the set updated 19 Sep 2026
Bought (12 mo)
$296.19K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
+$296.19K
+$296.19K against sales at will

By person

8 insiders · 8 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Nichtberger Steven
President & CEO
$100.78K (1)
+$100.78K
1,031,483
$2.34M
+4.6%
Tomasello Shawn
Director
$50.32K (1)
+$50.32K
22,725
$51.58K
Gavel Steve
Chief Commercial Officer
$50.22K (1)
+$50.22K
22,170
$50.32K
Simon Mark
Director
$25.26K (1)
+$25.26K
147,205
$334.10K
+8.1%
Binder Gwendolyn
President, Science & Tech.
$24.76K (1)
+$24.76K
31,312
$71.07K
+56.6%
Chang David J.
Chief Medical Officer
$19.89K (1)
+$19.89K
8,800
$19.97K
Gerard Michael
General Counsel
$14.98K (1)
+$14.98K
6,600
$14.98K
Bollard Catherine
Director
$9.98K (1)
+$9.98K
5,405
$12.27K
+440.5%

No percentages here. This company's share count has moved by a factor of 3.5 over the window, from 48,877,164 to 169,545,445 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Gerard Michael
21 Jan 2026
General Counsel
Buy
6,600
$2.27
$14.98K
Simon Mark
21 Jan 2026
Director
Buy
11,061
$2.28
$25.26K
Nichtberger Steven
21 Jan 2026
President & CEO
Buy
45,000
$2.24
$100.78K
Bollard Catherine
21 Jan 2026
Director
Buy
4,405
$2.27
$9.98K
Gavel Steve
21 Jan 2026
Chief Commercial Officer
Buy
22,170
$2.27
$50.22K
Tomasello Shawn
21 Jan 2026
Director
Buy indirect
22,725
$2.21
$50.32K
Binder Gwendolyn
21 Jan 2026
President, Science & Tech.
Buy
11,312
$2.19
$24.76K
Chang David J.
21 Jan 2026
Chief Medical Officer
Buy
8,800
$2.26
$19.89K

What was left out

Form 4 filings counted 20
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 0
History held since 28 Oct 2019