ULCC US Equity

Frontier Group Holdings, Inc.

Nasdaq+ Compare Tear sheet →

Industrials · Air Transportation, Scheduled · CIK 1670076 · FYE 1231

$6.98

+0.48 (+7.38%)

USD · as of 2026-07-30 · marketstack

Switch Ticker

Institutional ownership· 13F filers holding ULCC · 2026-Q1 methodology → sources →

161 holders

% of shares outstanding held

54.9%

Shares held (13F)

125,973,466

Reporting holders

161

Active share of register83.1%139 active filers

Index / screened out16.9%22 filers

Reporting holders1612026-Q1

Top-10 concentration73.3%

HHI0.1259

Effective holders7.9

Crowding percentile30.7of 791 same-size names

Top holders

largest 100 of 161 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	Indigo Partners LLC	32,092,00732.1M	$113M	13.98%	—
2	Wildcat Capital Management, LLC	28,061,35128.1M	$99M	12.22%	—
3	U S GLOBAL INVESTORS INC	6,781,4126.8M	$24M	2.95%	ADD 64%
4	BlackRock, Inc.	5,283,0835.3M	$19M	2.30%	TRIM -21%
5	MARSHALL WACE, LLP	4,031,5194.0M	$14M	1.76%	ADD 373%
6	Silver Point Capital L.P.	3,655,0003.7M	$13M	1.59%	TRIM -26%
7	VANGUARD CAPITAL MANAGEMENT LLC	3,589,9573.6M	$13M	1.56%	NEW
8	VANGUARD PORTFOLIO MANAGEMENT LLC	3,272,4803.3M	$12M	1.43%	NEW
9	Ancient Art, L.P.	3,122,7043.1M	$11M	1.36%	TRIM -13%
10	DIMENSIONAL FUND ADVISORS LP	2,457,5002.5M	$9M	1.07%	TRIM -17%
11	STATE STREET CORP	2,286,2702.3M	$8M	1.00%	ADD 7%
12	TWO SIGMA INVESTMENTS, LP	2,268,0562.3M	$8M	0.99%	ADD 12%
13	PAR CAPITAL MANAGEMENT INC	2,131,1002.1M	$8M	0.93%	—
14	GEODE CAPITAL MANAGEMENT, LLC	1,820,2051.8M	$6M	0.79%	TRIM -17%
15	AMERICAN CENTURY COMPANIES INC	1,756,8131.8M	$6M	0.77%	—
16	HRT FINANCIAL LP	1,674,0341.7M	$6M	0.73%	ADD 105%
17	GOLDMAN SACHS GROUP INC	1,179,3841.2M	$4M	0.51%	ADD 84%
18	FIRST TRUST ADVISORS LP	1,179,0191.2M	$4M	0.51%	ADD 66%
19	TUDOR INVESTMENT CORP ET AL	1,140,1941.1M	$4M	0.50%	NEW
20	JANE STREET GROUP, LLC	972,432972,432	$3M	0.42%	ADD 312%
21	Mountaineer Partners Management, LLC	953,375953,375	$3M	0.42%	—
22	Russell Investments Group, Ltd.	927,620927,620	$3M	0.40%	ADD 385%
23	MORGAN STANLEY	882,476882,476	$3M	0.38%	TRIM -42%
24	Jump Financial, LLC	796,600796,600	$3M	0.35%	NEW
25	Point72 Asset Management, L.P.	716,196716,196	$3M	0.31%	TRIM -59%
26	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	659,400659,400	$2M	0.29%	TRIM -7%
27	GSA CAPITAL PARTNERS LLP	584,152584,152	$2M	0.25%	ADD 84%
28	UBS Group AG	583,276583,276	$2M	0.25%	ADD 71%
29	NORTHERN TRUST CORP	558,532558,532	$2M	0.24%	TRIM -16%
30	SkyView Investment Advisors, LLC	551,415551,415	$2M	0.24%	—
31	VANGUARD FIDUCIARY TRUST CO	546,933546,933	$2M	0.24%	NEW
32	CITADEL ADVISORS LLC	535,859535,859	$2M	0.23%	TRIM -5%
33	Prentice Capital Management, LP	531,326531,326	$2M	0.23%	—
34	PRIMECAP MANAGEMENT CO/CA/	494,900494,900	$2M	0.22%	—
35	LAZARD ASSET MANAGEMENT LLC	467,740467,740	$2M	0.20%	NEW
36	Creative Planning	465,463465,463	$2M	0.20%	TRIM -24%
37	BANK OF AMERICA CORP /DE/	425,166425,166	$2M	0.19%	TRIM -34%
38	OneDigital Investment Advisors LLC	363,153363,153	$1M	0.16%	—
39	Susquehanna Portfolio Strategies, LLC	309,990309,990	$1M	0.14%	—
40	Schonfeld Strategic Advisors LLC	300,095300,095	$1M	0.13%	NEW
41	MILLENNIUM MANAGEMENT LLC	281,063281,063	$992,152	0.12%	TRIM -88%
42	PDT Partners, LLC	277,299277,299	$978,865	0.12%	TRIM -5%
43	Invesco Ltd.	263,998263,998	$931,913	0.11%	ADD 5%
44	Quantbot Technologies LP	250,607250,607	$884,643	0.11%	ADD 5%
45	SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC	217,467217,467	$767,659	0.09%	NEW
46	D. E. Shaw & Co., Inc.	205,678205,678	$726,043	0.09%	TRIM -82%
47	Boston Partners	205,419205,419	$725,130	0.09%	ADD 374%
48	AQR CAPITAL MANAGEMENT LLC	194,428194,428	$686,331	0.08%	ADD 50%
49	Quinn Opportunity Partners LLC	190,200190,200	$671,406	0.08%	—
50	Numerai GP LLC	163,635163,635	$577,632	0.07%	ADD 89%
51	Bank of New York Mellon Corp	162,761162,761	$574,546	0.07%	TRIM -17%
52	Engineers Gate Manager LP	152,966152,966	$539,970	0.07%	NEW
53	Mountain Capital Investment Advisors Inc.	140,535140,535	$539,654	0.06%	ADD 16%
54	ALLIANCEBERNSTEIN L.P.	104,970104,970	$494,409	0.05%	ADD 11%
55	DEUTSCHE BANK AG\	124,693124,693	$440,166	0.05%	TRIM -23%
56	Brevan Howard Capital Management LP	124,205124,205	$438,444	0.05%	ADD 182%
57	GROUP ONE TRADING LLC	122,577122,577	$432,697	0.05%	TRIM -44%
58	CITIGROUP INC	114,524114,524	$404,269	0.05%	ADD 734%
59	FLOW TRADERS U.S. LLC	111,467111,467	$393,000	0.05%	NEW
60	Swiss National Bank	110,100110,100	$388,653	0.05%	—
61	State of Wyoming	107,250107,250	$378,593	0.05%	TRIM -17%
62	HSBC HOLDINGS PLC	103,190103,190	$368,159	0.04%	NEW
63	Nuveen, LLC	102,173102,173	$360,671	0.04%	TRIM -28%
64	Optimize Financial Inc	97,03797,037	$342,541	0.04%	ADD 56%
65	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,32689,326	$315,321	0.04%	TRIM -15%
66	RHUMBLINE ADVISERS	77,12177,121	$272,227	0.03%	TRIM -26%
67	Squarepoint Ops LLC	76,53176,531	$270,154	0.03%	TRIM -24%
68	SUSQUEHANNA INTERNATIONAL GROUP, LLP	71,76471,764	$253,327	0.03%	TRIM -85%
69	STRAIGHTLINE GROUP LLC	65,57665,576	$231,485	0.03%	ADD 8%
70	Blueshift Asset Management, LLC	59,39159,391	$209,650	0.03%	ADD 47%
71	Diametric Capital, LP	56,94356,943	$201,008	0.02%	TRIM -34%
72	Aquatic Capital Management LLC	55,16155,161	$194,718	0.02%	TRIM -52%
73	GTS SECURITIES LLC	53,49953,499	$188,851	0.02%	NEW
74	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	51,54351,543	$181,947	0.02%	TRIM -4%
75	IMC-Chicago, LLC	48,81248,812	$172,306	0.02%	NEW
76	LANDSCAPE CAPITAL MANAGEMENT, L.L.C.	46,84346,843	$165,355	0.02%	NEW
77	nVerses Capital, LLC	46,39346,393	$163,767	0.02%	NEW
78	VANGUARD ASSET MANAGEMENT, Ltd	40,89340,893	$144,352	0.02%	NEW
79	PRICE T ROWE ASSOCIATES INC /MD/	40,58340,583	$144,000	0.02%	TRIM -20%
80	BARCLAYS PLC	36,50236,502	$128,853	0.02%	TRIM -73%
81	DRW Securities, LLC	35,85835,858	$126,578	0.02%	NEW
82	Legal & General Group Plc	34,51134,511	$121,823	0.02%	TRIM -34%
83	Vanguard Global Advisers, LLC	31,23031,230	$110,242	0.01%	NEW
84	McGowan Group Asset Management, Inc.	30,00030,000	$105,900	0.01%	NEW
85	BNP PARIBAS FINANCIAL MARKETS	28,80628,806	$101,685	0.01%	TRIM -86%
86	PRELUDE CAPITAL MANAGEMENT, LLC	28,01328,013	$98,886	0.01%	ADD 31%
87	Scientech Research LLC	27,95727,957	$98,688	0.01%	ADD 22%
88	Centiva Capital, LP	27,19527,195	$95,998	0.01%	NEW
89	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	26,89726,897	$94,946	0.01%	TRIM -32%
90	Police & Firemen's Retirement System of New Jersey	23,77223,772	$83,915	0.01%	—
91	JANUS HENDERSON GROUP PLC	23,58223,582	$83,362	0.01%	—
92	AMERIPRISE FINANCIAL INC	23,48923,489	$82,916	0.01%	—
93	JPMORGAN CHASE & CO	24,07724,077	$82,103	0.01%	TRIM -31%
94	JONES FINANCIAL COMPANIES LLLP	22,61122,611	$79,817	0.01%	TRIM -2%
95	WELLS FARGO & COMPANY/MN	21,16621,166	$74,716	0.01%	TRIM -77%
96	Vanguard Personalized Indexing Management, LLC	20,71620,716	$73,127	0.01%	TRIM -13%
97	MANUFACTURERS LIFE INSURANCE COMPANY, THE	19,34419,344	$68,284	0.01%	TRIM -53%
98	SIMPLEX TRADING, LLC	18,73918,739	$66,148	0.01%	TRIM -62%
99	Y-Intercept (Hong Kong) Ltd	16,88516,885	$59,604	0.01%	NEW
100	ARIZONA STATE RETIREMENT SYSTEM	15,72115,721	$55,495	0.01%	—

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Buyers & sellers2026-Q1 vs 2025-Q4 · 71 bought / 93 sold · net +671,317 shares · 0.2d of ADV

Bought71 filers

Shares: 21,812,098
Value: $77M
Opened: 34 · 11,131,761 sh
Days of ADV: 5.5d

Sold93 filers

Shares: 21,140,781
Value: $75M
Closed: 29 · 10,474,476 sh
Days of ADV: 5.3d

Net (all filers) +671,317 sh · $2M · 0.5% of the prior register

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

Indigo Partners LLC

32.1M

$113M

Wildcat Capital Management, LLC

28.1M

$99M

U S GLOBAL INVESTORS INC

5.4M

3.9M

6.2M

4.6M

4.1M

6.8M

$24M

BlackRock, Inc.

4.5M

4.0M

6.4M

6.7M

5.3M

$19M

MARSHALL WACE, LLP

—

121K

158K

853K

4.0M

$14M

Silver Point Capital L.P.

—

900K

6.3M

4.9M

3.7M

$13M

VANGUARD CAPITAL MANAGEMENT LLC

—

3.6M

$13M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

3.3M

$12M

Ancient Art, L.P.

5.4M

4.5M

4.7M

4.3M

3.6M

3.1M

$11M

DIMENSIONAL FUND ADVISORS LP

805K

2.3M

3.8M

4.0M

3.0M

2.5M

$9M

STATE STREET CORP

1.5M

1.6M

1.9M

2.0M

2.1M

2.3M

$8M

TWO SIGMA INVESTMENTS, LP

980K

1.5M

226K

670K

2.0M

2.3M

$8M

PAR CAPITAL MANAGEMENT INC

1.8M

2.2M

2.1M

$8M

GEODE CAPITAL MANAGEMENT, LLC

1.6M

1.7M

2.1M

2.2M

1.8M

$6M

AMERICAN CENTURY COMPANIES INC

53K

775K

1.1M

1.3M

1.8M

$6M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding divides each quarter's as-filed 13F shares by the SEC cover-page share count dated to that same quarter (split-adjusted), not by today's count — so splits and buybacks don't move the line.

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	161	125,973,466	54.9%	$445M
2025-Q4	156	125,302,149

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · ULCC

Full stake history →

Large holders — 13G, passive (top 1 by % of class)

Holder

% of class

Type

As of

Group Holdings - Frontier LLC

9.9%

Passive

2026-07-09

SEC →

Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).

▸Register gapwho owns your peers and not you

13F

Institutional ownership· 13F filers holding ULCC · 2026-Q1 methodology → sources →

161 holders

% of shares outstanding held

54.9%

Shares held (13F)

125,973,466

Reporting holders

161

Active share of register83.1%139 active filers

Index / screened out16.9%22 filers

Reporting holders1612026-Q1

Top-10 concentration73.3%

HHI0.1259

Effective holders7.9

Crowding percentile30.7of 791 same-size names

Top holders

largest 100 of 161 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	Indigo Partners LLC	32,092,00732.1M	$113M	13.98%	—
2	Wildcat Capital Management, LLC	28,061,35128.1M	$99M	12.22%	—
3	U S GLOBAL INVESTORS INC	6,781,4126.8M	$24M	2.95%	ADD 64%
4	BlackRock, Inc.	5,283,0835.3M	$19M	2.30%	TRIM -21%
5	MARSHALL WACE, LLP	4,031,5194.0M	$14M	1.76%	ADD 373%
6	Silver Point Capital L.P.	3,655,0003.7M	$13M	1.59%	TRIM -26%
7	VANGUARD CAPITAL MANAGEMENT LLC	3,589,9573.6M	$13M	1.56%	NEW
8	VANGUARD PORTFOLIO MANAGEMENT LLC	3,272,4803.3M	$12M	1.43%	NEW
9	Ancient Art, L.P.	3,122,7043.1M	$11M	1.36%	TRIM -13%
10	DIMENSIONAL FUND ADVISORS LP	2,457,5002.5M	$9M	1.07%	TRIM -17%
11	STATE STREET CORP	2,286,2702.3M	$8M	1.00%	ADD 7%
12	TWO SIGMA INVESTMENTS, LP	2,268,0562.3M	$8M	0.99%	ADD 12%
13	PAR CAPITAL MANAGEMENT INC	2,131,1002.1M	$8M	0.93%	—
14	GEODE CAPITAL MANAGEMENT, LLC	1,820,2051.8M	$6M	0.79%	TRIM -17%
15	AMERICAN CENTURY COMPANIES INC	1,756,8131.8M	$6M	0.77%	—
16	HRT FINANCIAL LP	1,674,0341.7M	$6M	0.73%	ADD 105%
17	GOLDMAN SACHS GROUP INC	1,179,3841.2M	$4M	0.51%	ADD 84%
18	FIRST TRUST ADVISORS LP	1,179,0191.2M	$4M	0.51%	ADD 66%
19	TUDOR INVESTMENT CORP ET AL	1,140,1941.1M	$4M	0.50%	NEW
20	JANE STREET GROUP, LLC	972,432972,432	$3M	0.42%	ADD 312%
21	Mountaineer Partners Management, LLC	953,375953,375	$3M	0.42%	—
22	Russell Investments Group, Ltd.	927,620927,620	$3M	0.40%	ADD 385%
23	MORGAN STANLEY	882,476882,476	$3M	0.38%	TRIM -42%
24	Jump Financial, LLC	796,600796,600	$3M	0.35%	NEW
25	Point72 Asset Management, L.P.	716,196716,196	$3M	0.31%	TRIM -59%
26	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	659,400659,400	$2M	0.29%	TRIM -7%
27	GSA CAPITAL PARTNERS LLP	584,152584,152	$2M	0.25%	ADD 84%
28	UBS Group AG	583,276583,276	$2M	0.25%	ADD 71%
29	NORTHERN TRUST CORP	558,532558,532	$2M	0.24%	TRIM -16%
30	SkyView Investment Advisors, LLC	551,415551,415	$2M	0.24%	—
31	VANGUARD FIDUCIARY TRUST CO	546,933546,933	$2M	0.24%	NEW
32	CITADEL ADVISORS LLC	535,859535,859	$2M	0.23%	TRIM -5%
33	Prentice Capital Management, LP	531,326531,326	$2M	0.23%	—
34	PRIMECAP MANAGEMENT CO/CA/	494,900494,900	$2M	0.22%	—
35	LAZARD ASSET MANAGEMENT LLC	467,740467,740	$2M	0.20%	NEW
36	Creative Planning	465,463465,463	$2M	0.20%	TRIM -24%
37	BANK OF AMERICA CORP /DE/	425,166425,166	$2M	0.19%	TRIM -34%
38	OneDigital Investment Advisors LLC	363,153363,153	$1M	0.16%	—
39	Susquehanna Portfolio Strategies, LLC	309,990309,990	$1M	0.14%	—
40	Schonfeld Strategic Advisors LLC	300,095300,095	$1M	0.13%	NEW
41	MILLENNIUM MANAGEMENT LLC	281,063281,063	$992,152	0.12%	TRIM -88%
42	PDT Partners, LLC	277,299277,299	$978,865	0.12%	TRIM -5%
43	Invesco Ltd.	263,998263,998	$931,913	0.11%	ADD 5%
44	Quantbot Technologies LP	250,607250,607	$884,643	0.11%	ADD 5%
45	SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC	217,467217,467	$767,659	0.09%	NEW
46	D. E. Shaw & Co., Inc.	205,678205,678	$726,043	0.09%	TRIM -82%
47	Boston Partners	205,419205,419	$725,130	0.09%	ADD 374%
48	AQR CAPITAL MANAGEMENT LLC	194,428194,428	$686,331	0.08%	ADD 50%
49	Quinn Opportunity Partners LLC	190,200190,200	$671,406	0.08%	—
50	Numerai GP LLC	163,635163,635	$577,632	0.07%	ADD 89%
51	Bank of New York Mellon Corp	162,761162,761	$574,546	0.07%	TRIM -17%
52	Engineers Gate Manager LP	152,966152,966	$539,970	0.07%	NEW
53	Mountain Capital Investment Advisors Inc.	140,535140,535	$539,654	0.06%	ADD 16%
54	ALLIANCEBERNSTEIN L.P.	104,970104,970	$494,409	0.05%	ADD 11%
55	DEUTSCHE BANK AG\	124,693124,693	$440,166	0.05%	TRIM -23%
56	Brevan Howard Capital Management LP	124,205124,205	$438,444	0.05%	ADD 182%
57	GROUP ONE TRADING LLC	122,577122,577	$432,697	0.05%	TRIM -44%
58	CITIGROUP INC	114,524114,524	$404,269	0.05%	ADD 734%
59	FLOW TRADERS U.S. LLC	111,467111,467	$393,000	0.05%	NEW
60	Swiss National Bank	110,100110,100	$388,653	0.05%	—
61	State of Wyoming	107,250107,250	$378,593	0.05%	TRIM -17%
62	HSBC HOLDINGS PLC	103,190103,190	$368,159	0.04%	NEW
63	Nuveen, LLC	102,173102,173	$360,671	0.04%	TRIM -28%
64	Optimize Financial Inc	97,03797,037	$342,541	0.04%	ADD 56%
65	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,32689,326	$315,321	0.04%	TRIM -15%
66	RHUMBLINE ADVISERS	77,12177,121	$272,227	0.03%	TRIM -26%
67	Squarepoint Ops LLC	76,53176,531	$270,154	0.03%	TRIM -24%
68	SUSQUEHANNA INTERNATIONAL GROUP, LLP	71,76471,764	$253,327	0.03%	TRIM -85%
69	STRAIGHTLINE GROUP LLC	65,57665,576	$231,485	0.03%	ADD 8%
70	Blueshift Asset Management, LLC	59,39159,391	$209,650	0.03%	ADD 47%
71	Diametric Capital, LP	56,94356,943	$201,008	0.02%	TRIM -34%
72	Aquatic Capital Management LLC	55,16155,161	$194,718	0.02%	TRIM -52%
73	GTS SECURITIES LLC	53,49953,499	$188,851	0.02%	NEW
74	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	51,54351,543	$181,947	0.02%	TRIM -4%
75	IMC-Chicago, LLC	48,81248,812	$172,306	0.02%	NEW
76	LANDSCAPE CAPITAL MANAGEMENT, L.L.C.	46,84346,843	$165,355	0.02%	NEW
77	nVerses Capital, LLC	46,39346,393	$163,767	0.02%	NEW
78	VANGUARD ASSET MANAGEMENT, Ltd	40,89340,893	$144,352	0.02%	NEW
79	PRICE T ROWE ASSOCIATES INC /MD/	40,58340,583	$144,000	0.02%	TRIM -20%
80	BARCLAYS PLC	36,50236,502	$128,853	0.02%	TRIM -73%
81	DRW Securities, LLC	35,85835,858	$126,578	0.02%	NEW
82	Legal & General Group Plc	34,51134,511	$121,823	0.02%	TRIM -34%
83	Vanguard Global Advisers, LLC	31,23031,230	$110,242	0.01%	NEW
84	McGowan Group Asset Management, Inc.	30,00030,000	$105,900	0.01%	NEW
85	BNP PARIBAS FINANCIAL MARKETS	28,80628,806	$101,685	0.01%	TRIM -86%
86	PRELUDE CAPITAL MANAGEMENT, LLC	28,01328,013	$98,886	0.01%	ADD 31%
87	Scientech Research LLC	27,95727,957	$98,688	0.01%	ADD 22%
88	Centiva Capital, LP	27,19527,195	$95,998	0.01%	NEW
89	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	26,89726,897	$94,946	0.01%	TRIM -32%
90	Police & Firemen's Retirement System of New Jersey	23,77223,772	$83,915	0.01%	—
91	JANUS HENDERSON GROUP PLC	23,58223,582	$83,362	0.01%	—
92	AMERIPRISE FINANCIAL INC	23,48923,489	$82,916	0.01%	—
93	JPMORGAN CHASE & CO	24,07724,077	$82,103	0.01%	TRIM -31%
94	JONES FINANCIAL COMPANIES LLLP	22,61122,611	$79,817	0.01%	TRIM -2%
95	WELLS FARGO & COMPANY/MN	21,16621,166	$74,716	0.01%	TRIM -77%
96	Vanguard Personalized Indexing Management, LLC	20,71620,716	$73,127	0.01%	TRIM -13%
97	MANUFACTURERS LIFE INSURANCE COMPANY, THE	19,34419,344	$68,284	0.01%	TRIM -53%
98	SIMPLEX TRADING, LLC	18,73918,739	$66,148	0.01%	TRIM -62%
99	Y-Intercept (Hong Kong) Ltd	16,88516,885	$59,604	0.01%	NEW
100	ARIZONA STATE RETIREMENT SYSTEM	15,72115,721	$55,495	0.01%	—

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Buyers & sellers2026-Q1 vs 2025-Q4 · 71 bought / 93 sold · net +671,317 shares · 0.2d of ADV

Bought71 filers

Shares: 21,812,098
Value: $77M
Opened: 34 · 11,131,761 sh
Days of ADV: 5.5d

Sold93 filers

Shares: 21,140,781
Value: $75M
Closed: 29 · 10,474,476 sh
Days of ADV: 5.3d

Net (all filers) +671,317 sh · $2M · 0.5% of the prior register

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

Indigo Partners LLC

32.1M

$113M

Wildcat Capital Management, LLC

28.1M

$99M

U S GLOBAL INVESTORS INC

5.4M

3.9M

6.2M

4.6M

4.1M

6.8M

$24M

BlackRock, Inc.

4.5M

4.0M

6.4M

6.7M

5.3M

$19M

MARSHALL WACE, LLP

—

121K

158K

853K

4.0M

$14M

Silver Point Capital L.P.

—

900K

6.3M

4.9M

3.7M

$13M

VANGUARD CAPITAL MANAGEMENT LLC

—

3.6M

$13M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

3.3M

$12M

Ancient Art, L.P.

5.4M

4.5M

4.7M

4.3M

3.6M

3.1M

$11M

DIMENSIONAL FUND ADVISORS LP

805K

2.3M

3.8M

4.0M

3.0M

2.5M

$9M

STATE STREET CORP

1.5M

1.6M

1.9M

2.0M

2.1M

2.3M

$8M

TWO SIGMA INVESTMENTS, LP

980K

1.5M

226K

670K

2.0M

2.3M

$8M

PAR CAPITAL MANAGEMENT INC

1.8M

2.2M

2.1M

$8M

GEODE CAPITAL MANAGEMENT, LLC

1.6M

1.7M

2.1M

2.2M

1.8M

$6M

AMERICAN CENTURY COMPANIES INC

53K

775K

1.1M

1.3M

1.8M

$6M

Institutional footprint by quarter

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	161	125,973,466	54.9%	$445M
2025-Q4	156	125,302,149

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · ULCC

Full stake history →

Large holders — 13G, passive (top 1 by % of class)

Holder

% of class

Type

As of

Group Holdings - Frontier LLC

9.9%

Passive

2026-07-09

SEC →

▸Register gapwho owns your peers and not you

13F

ULCC US Equity☆

Institutional ownership· 13F filers holding ULCC · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · ULCC

▸Register gapwho owns your peers and not you

Institutional ownership· 13F filers holding ULCC · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · ULCC

▸Register gapwho owns your peers and not you

ULCC US Equity