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Cabaletta Bio, Inc.

CABA Net selling
CIK 0001759138 #3036 in the set updated 19 Sep 2026
Bought (120 mo)
$13.34M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$21.02M
$0.00 on a plan · $1.69M straight out of an exercise
Sold at will
$19.32M
9 of 25 sales
Net
−$7.68M
−$5.98M against sales at will

By person

12 insiders · 43 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
5AM Ventures V, L.P. entity
10% owner
$5.00M (1)
$19.32M (9)
−$14.32M
702,832
$1.60M
—
Flynn James E
10% owner
$7.70M (1)
—
+$7.70M
1,628,506
$3.70M
—
Binder Gwendolyn
President, Science & Tech.
$44.66K (2)
$1.69M (16) scheduled
−$1.65M
31,312
$71.07K
—
Nichtberger Steven
President & CEO
$251.94K (3)
—
+$251.94K
1,394,483
$3.16M
+28.1%
Simon Mark
Director
$147.38K (3)
—
+$147.38K
154,205
$349.98K
—
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
—
Marda Anup
Chief Financial Officer
$49.62K (1)
—
+$49.62K
50,000
$113.48K
—
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
$10.98K (2)
—
+$10.98K
5,405
$12.27K
—
Redmile Group, LLC entity
10% owner
—
—
—
696,378
$1.58M
—

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.

Individual transactions

16
Insider
Date
Role
Action
Shares
Price
Amount
Binder Gwendolyn
19 Jan 2024
See Remarks
Sold after exercise
700
$20.33
$14.23K
Binder Gwendolyn
19 Jan 2024
See Remarks
Sold after exercise
10,300
$19.54
$201.21K
Binder Gwendolyn
19 Dec 2023
See Remarks
Sold after exercise
3,132
$22.22
$69.59K
Binder Gwendolyn
19 Dec 2023
See Remarks
Sold after exercise
7,868
$21.76
$171.20K
Binder Gwendolyn
20 Nov 2023
See Remarks
Sold after exercise
7,458
$18.02
$134.41K
Binder Gwendolyn
20 Nov 2023
See Remarks
Sold after exercise
3,542
$17.39
$61.61K
Binder Gwendolyn
19 Oct 2023
See Remarks
Sold after exercise
408
$14.28
$5.82K
Binder Gwendolyn
19 Oct 2023
See Remarks
Sold after exercise
10,592
$13.32
$141.10K
Binder Gwendolyn
19 Sep 2023
See Remarks
Sold after exercise
700
$18.50
$12.95K
Binder Gwendolyn
19 Sep 2023
See Remarks
Sold after exercise
10,300
$17.50
$180.27K
Binder Gwendolyn
21 Aug 2023
See Remarks
Sold after exercise
300
$13.82
$4.15K
Binder Gwendolyn
21 Aug 2023
See Remarks
Sold after exercise
10,700
$13.41
$143.44K
Binder Gwendolyn
19 Jul 2023
See Remarks
Sold after exercise
2,815
$14.26
$40.14K
Binder Gwendolyn
19 Jul 2023
See Remarks
Sold after exercise
8,185
$13.67
$111.88K
Binder Gwendolyn
20 Jun 2023
See Remarks
Sold after exercise
11,000
$12.99
$142.93K
Binder Gwendolyn
19 May 2023
See Remarks
Sold after exercise
22,000
$11.81
$259.83K
Show all 43 transactions →

What was left out

Form 4 filings counted 120
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 7
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 16
Sales at will 9
Transactions with no price 0
Shares from compensation/vesting 5,078,232
Sales filed before the plan box existed 9
History held since 28 Oct 2019