Frontier Group Holdings, Inc.
US ˙ NasdaqGS ˙ US35909R1086

SecurityULCC / Frontier Group Holdings, Inc.
InstitutionXTX Topco Ltd
Latest Disclosed Ownership13,976 shares
Latest Disclosed Value $ 49,335
XTX Topco Ltd reports 35.99% increase in ownership of ULCC / Frontier Group Holdings, Inc.

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 13,976 shares of Frontier Group Holdings, Inc. (US:ULCC) valued at $49,335 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,277 shares of Frontier Group Holdings, Inc.. This represents a change in shares of 35.99% during the quarter. The current value of the position is $81,760 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F FRONTIER GROUP HLDGS COM 35909R108 13,976 3,699 35.99 49 2.08 0.0009
2026-02-17 2025-12-31 13F FRONTIER GROUP HLDGS COM 35909R108 10,277 -128,601 -92.60 48 -92.17 0.0013
2025-11-14 2025-09-30 13F FRONTIER GROUP HLDGS COM 35909R108 138,878 15,393 12.47 613 36.83 0.0318
2025-08-12 2025-06-30 13F FRONTIER GROUP HLDGS COM 35909R108 123,485 92,809 302.55 448 236.84 0.0186
2025-05-08 2025-03-31 13F FRONTIER GROUP HLDGS COM 35909R108 30,676 12,528 69.03 133 3.10 0.0068
2025-02-13 2024-12-31 13F FRONTIER GROUP HLDGS COM 35909R108 18,148 18,148 129 0.0106
2024-11-14 2024-09-30 13F FRONTIER GROUP HLDGS COM 35909R108 0 -41,103 -100.00 0 -100.00
2024-08-12 2024-06-30 13F FRONTIER GROUP HLDGS COM 35909R108 41,103 3,936 10.59 203 -32.89 0.0173
2024-05-13 2024-03-31 13F FRONTIER GROUP HLDGS COM 35909R108 37,167 7,455 25.09 301 85.80 0.0406
2024-02-13 2023-12-31 13F FRONTIER GROUP HLDGS COM 35909R108 29,712 29,712 162 0.0355
2023-11-13 2023-09-30 13F FRONTIER GROUP HLDGS COM 35909R108 0 -21,454 -100.00 0 -100.00
2023-08-14 2023-06-30 13F FRONTIER GROUP HLDGS COM 35909R108 21,454 -1,481 -6.46 207 -8.00 0.0372
2023-05-12 2023-03-31 13F FRONTIER GROUP HLDGS COM 35909R108 22,935 22,935 226 0.0473
2022-11-14 2022-09-30 13F FRONTIER GROUP HLDGS COM 35909R108 0 -13,395 -100.00 0 -100.00
2022-08-15 2022-06-30 13F FRONTIER GROUP HLDGS COM 35909R108 13,395 13,395 126 0.0515
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.