Howard M. Diamond - 06 Feb 2026 Form 4 Insider Report for Frontier Group Holdings, Inc. (ULCC)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
10 Feb 2026, 16:27:34 UTC
Prior SEC filing
09 Feb 2026
Next SEC filing
06 Aug 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Howard M. Diamond

Key filing fact

Howard M. Diamond filed Form 4 for Frontier Group Holdings, Inc. (ULCC) on 10 Feb 2026.

Key facts

  • This page summarizes Howard M. Diamond's Form 4 filing for Frontier Group Holdings, Inc. (ULCC).
  • 9 reported transactions and 3 derivative rows are listed below.
  • Accepted by SEC: 10 Feb 2026, 16:27.

Change

  • Previous filing in this sequence was filed on 09 Feb 2026.
  • Current net transaction value: -$96,005.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001671358 Primary reporting owner

Diamond Howard

Relationship
EVP, Legal & Corporate Affairs
Address
C/O FRONTIER GROUP HOLDINGS, INC., 4545 AIRPORT WAY, DENVER
Signature
/s/ Howard M. Diamond
Signature date
10 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ULCC transaction

Common Stock

Options Exercise

Transaction value
Shares
+18,335
Change %
+13%
Price
Shares after
155,346
Date
06 Feb 2026
Ownership
Direct
Footnotes
F1, F2
ULCC transaction

Common Stock

Tax liability

Transaction value
$45,319
Shares
-8,021
Change %
-5.2%
Price
$5.65
Shares after
147,325
Date
06 Feb 2026
Ownership
Direct
Footnotes
F3
ULCC transaction

Common Stock

Options Exercise

Transaction value
Shares
+11,328
Change %
+7.7%
Price
Shares after
158,653
Date
08 Feb 2026
Ownership
Direct
Footnotes
F1, F2
ULCC transaction

Common Stock

Tax liability

Transaction value
$32,313
Shares
-4,956
Change %
-3.1%
Price
$6.52
Shares after
153,697
Date
08 Feb 2026
Ownership
Direct
Footnotes
F4
ULCC transaction

Common Stock

Options Exercise

Transaction value
Shares
+6,442
Change %
+4.2%
Price
Shares after
160,139
Date
08 Feb 2026
Ownership
Direct
Footnotes
F1, F2
ULCC transaction

Common Stock

Tax liability

Transaction value
$18,373
Shares
-2,818
Change %
-1.8%
Price
$6.52
Shares after
157,321
Date
08 Feb 2026
Ownership
Direct
Footnotes
F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ULCC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
$0
Shares
-18,335
Change %
-33%
Price
$0.000000
Shares after
36,671
Date
06 Feb 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
18,335
Exercise price
Footnotes
F2, F5
ULCC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
$0
Shares
-11,328
Change %
-100%
Price
$0.000000
Shares after
0
Date
08 Feb 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
11,328
Exercise price
Footnotes
F2, F6
ULCC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
$0
Shares
-6,442
Change %
-100%
Price
$0.000000
Shares after
0
Date
08 Feb 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
6,442
Exercise price
Footnotes
F2, F6
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Relates solely to the settlement of previously granted Restricted Stock Units upon vesting. No shares were sold by the Reporting Person.

Footnote F2

Each Restricted Stock Unit represents a contingent right to receive one share of Issuer Common Stock. The Restricted Stock Units have no expiration date.

Footnote F3

Represents shares of Issuer Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of Issuer Common Stock delivered to the Reporting on February 6, 2026, from the vesting of Restricted Stock Units, and does not represent a sale by the Reporting Person.

Footnote F4

Represents shares of Issuer Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of Issuer Common Stock delivered to the Reporting Person on February 8, 2026, from the vesting of Restricted Stock Units, and does not represent a sale by the Reporting Person.

Footnote F5

The remaining Restricted Stock Units vest in two substantially equal annual installments beginning on February 6, 2027.

Footnote F6

The Restricted Stock Units have fully vested as of February 8, 2026.

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