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Allegiant Travel Co. (ALGT) is the issuer in a Schedule 13G in which Donald Smith & Co., Inc. and DSCO Value Fund, L.P. each report aggregate beneficial ownership of 1,716,475 common shares, representing 6.32% of the class as of September 30, 2026. Donald Smith & Co., Inc. is listed with sole voting power over 1,639,136 shares and sole dispositive power over 1,699,806 shares. DSCO Value Fund, L.P. is listed with sole voting and sole dispositive power over 16,669 shares.
The statement says advisory clients or their custodians or trustee banks have the right to receive dividends and sale proceeds. It also states that, to Donald Smith & Co., Inc.’s knowledge, no individual advisory client owns more than 5% of the class.
Key Figures
Aggregate beneficial ownership:1,716,475 sharesPercent of class:6.32%Sole voting power — Donald Smith & Co., Inc.:1,639,136 shares+3 more
6 metrics
Aggregate beneficial ownership1,716,475 sharesReported by each reporting person as of September 30, 2026
Percent of class6.32%Aggregate beneficial ownership as of September 30, 2026
Sole voting power — Donald Smith & Co., Inc.1,639,136 sharesAs of September 30, 2026
Sole dispositive power — Donald Smith & Co., Inc.1,699,806 sharesAs of September 30, 2026
Sole voting power — DSCO Value Fund, L.P.16,669 sharesAs of September 30, 2026
Sole dispositive power — DSCO Value Fund, L.P.16,669 sharesAs of September 30, 2026
Key Terms
beneficially owned, Sole Voting Power, Sole Dispositive Power, investment advisor
4 terms
beneficially ownedregulatory
"Amount beneficially owned: 1,716,475"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Sole Voting Powerregulatory
"Sole Voting Power 1,639,136.00"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
Sole Dispositive Powerregulatory
"Sole Dispositive Power 1,699,806.00"
Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.
investment advisorregulatory
"institutional clients which Donald Smith & Co., Inc. serves as investment advisor"
An investment advisor is a person or firm that provides personalized guidance on buying, selling and managing investments and often oversees client portfolios for a fee. For investors this matters because the advisor shapes risk, costs and long-term returns, and is typically required by law to act in the client’s best interests — think of them as a financial coach or GPS that helps navigate choices and avoid costly detours.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many ALGT shares did Donald Smith & Co. report beneficially owning?
Donald Smith & Co., Inc. and DSCO Value Fund, L.P. each reported aggregate beneficial ownership of 1,716,475 shares, representing 6.32% of the class as of September 30, 2026.
How many ALGT shares could Donald Smith & Co. vote or dispose of?
Donald Smith & Co., Inc. was listed with sole voting power over 1,639,136 shares and sole dispositive power over 1,699,806 shares. DSCO Value Fund, L.P. was listed with sole voting and sole dispositive power over 16,669 shares.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Allegiant Travel CO
(Name of Issuer)
Common
(Title of Class of Securities)
01748X102
(CUSIP Number)
09/30/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
01748X102
1
Names of Reporting Persons
DONALD SMITH & CO., INC.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
1,639,136.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
1,699,806.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,716,475.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.3 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
CUSIP Number(s):
01748X102
1
Names of Reporting Persons
DSCO Value Fund, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
16,669.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
16,669.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,716,475.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.3 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Allegiant Travel CO
(b)
Address of issuer's principal executive offices:
1201 N. TOWN CENTER DRIVE, LAS VEGAS, NEVADA, 89144.
Item 2.
(a)
Name of person filing:
Donald Smith & Co., Inc.
(b)
Address or principal business office or, if none, residence:
152 West 57th Street, 29th Floor
New York, NY 10019
(c)
Citizenship:
A Delaware Corporation
(d)
Title of class of securities:
Common
(e)
CUSIP Number(s):
01748X102
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
1,716,475
(b)
Percent of class:
6.32%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Donald Smith & Co., Inc. 1,639,136
DSCO Value Fund, L.P. 16,669
(ii) Shared power to vote or to direct the vote:
SEE ITEM 6
(iii) Sole power to dispose or to direct the disposition of:
Donald Smith & Co., Inc. 1,699,806
DSCO Value Fund, L.P. 16,669
(iv) Shared power to dispose or to direct the disposition of:
SEE ITEM 6
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
1. Donald Smith & Co., Inc. does not serve as custodian of the assets of any of its clients; accordingly, in each instance only the client or the client?s custodian or trustee bank has the right to receive dividends paid with respect to, and proceeds from the sale of, such securities. The ultimate power to direct the receipt of dividends paid with respect to, and the proceeds from the sale of, such securities, is vested in the institutional clients which Donald Smith & Co., Inc. serves as investment advisor. Any and all discretionary authority which has been delegated to Donald Smith & Co., Inc. may be revoked in whole or in part at any time. To the knowledge of Donald Smith & Co., Inc., with respect to all securities reported in this schedule owned by advisory clients of Donald Smith & Co., Inc., not more than 5% of the class of such securities is owned by any one client. 2. With respect to the remaining securities owned, various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock of Allegiant Travel Co. No one person?s interest in the Common Stock of Allegiant Travel Co is more than five percent of the total outstanding Common Stock.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.
Donald Smith & Co., Inc. IA
DSCO Value Fund, L.P. PN
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
