Dimensional Fund Advisors LP reports ownership of 1,773,564 shares of Covista Inc common stock, representing 5.1% of the class as of 03/31/2026. The filing states the shares are owned by Dimensional-managed funds and that Dimensional disclaims beneficial ownership; Sole voting power is reported as 1,730,764 and sole dispositive power as 1,773,564.
Positive
None.
Negative
None.
Insights
Dimensional holds a modest institutional stake (5.1%) through managed funds.
Dimensional Fund Advisors LP reports beneficial ownership of 1,773,564 shares, equal to 5.1% of Covista Inc common stock as of 03/31/2026. The filing attributes the holdings to its managed Funds rather than to Dimensional as a principal holder.
This position size is material for proxy and disclosure thresholds but is within common institutional ranges; subsequent schedule amendments would show changes if funds increase or decrease holdings.
Disclosure follows Schedule 13G norms with a disclaimer of direct beneficial ownership.
The schedule includes Note 1 language stating that Dimensional acts as adviser to multiple Funds that own the reported shares and that Dimensional disclaims beneficial ownership for purposes beyond Section 13(d). Voting and dispositive powers are specified: sole voting power 1,730,764, sole dispositive power 1,773,564.
Stakeholders should watch for any Schedule 13D amendments or Form 4s that would indicate active control changes or officer/director transactions.
Key Figures
Shares beneficially owned:1,773,564 sharesSole voting power:1,730,764 sharesPercent of class:5.1%
3 metrics
Shares beneficially owned1,773,564 sharesas reported in Schedule 13G, <date>03/31/2026</date>
Sole voting power1,730,764 sharesSole voting power reported in the filing
Percent of class5.1%percent of Covista Inc common stock as of <date>03/31/2026</date>
Key Terms
Beneficial ownership, Schedule 13G, Investment Company Act
3 terms
Beneficial ownershipregulatory
"Dimensional disclaims beneficial ownership of such securities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Schedule 13Gregulatory
"This shall not be construed as an admission that the reporting person"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
Investment Company Actregulatory
"investment companies registered under the Investment Company Act of 1940"
The Investment Company Act is a law that sets rules for businesses whose main activity is managing and selling pooled money, such as mutual funds and other investment funds. It matters to investors because it requires clear reporting, limits managers from putting their own interests ahead of clients, and mandates safekeeping and oversight of assets—similar to safety inspections and traffic rules that help keep shared vehicles reliable and trustworthy.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Covista Inc
(Name of Issuer)
Common Stock
(Title of Class of Securities)
00737L103
(CUSIP Number)
03/31/2026
(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):
00737L103
1
Names of Reporting Persons
Dimensional Fund Advisors LP
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
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
1,730,764.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
1,773,564.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,773,564.00
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)
5.1 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Covista Inc
(b)
Address of issuer's principal executive offices:
233 S Wacker Dr, Suite 800, Chicago, IL 60606
Item 2.
(a)
Name of person filing:
Dimensional Fund Advisors LP
(b)
Address or principal business office or, if none, residence:
6300 Bee Cave Road, Building One, Austin, TX 78746
(c)
Citizenship:
Delaware Limited Partnership
(d)
Title of class of securities:
Common Stock
(e)
CUSIP Number(s):
00737L103
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:
1,773,564 ** see Note 1 **
** Note 1 ** Dimensional Fund Advisors LP, an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to four investment companies registered under the Investment Company Act of 1940, and serves as investment manager or sub-adviser to certain other commingled funds, group trusts and separate accounts (such investment companies, trusts and accounts, collectively referred to as the "Funds"). In certain cases, subsidiaries of Dimensional Fund Advisors LP may act as an adviser or sub-adviser to certain Funds. In its role as investment advisor, sub-adviser and/or manager, Dimensional Fund Advisors LP or its subsidiaries (collectively, "Dimensional") may possess voting and/or investment power over the securities of the Issuer that are owned by the Funds, and may be deemed to be the beneficial owner of the shares of the Issuer held by the Funds. However, all securities reported in this schedule are owned by the Funds. Dimensional disclaims beneficial ownership of such securities. In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934.
(b)
Percent of class:
5.1 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
1,730,764** see Note 1 **
(ii) Shared power to vote or to direct the vote:
0
(iii) Sole power to dispose or to direct the disposition of:
1,773,564** see Note 1 **
(iv) Shared power to dispose or to direct the disposition of:
0
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.
The Funds described in Note 1 above have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the securities held in their respective accounts. To the knowledge of Dimensional, the interest of any one such Fund does not exceed 5% of the class of securities. Dimensional Fund Advisors LP disclaims beneficial ownership of all such securities.
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.
Not Applicable
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.
What stake does Dimensional Fund Advisors hold in Covista Inc (ATGE)?
Dimensional reports ownership of 1,773,564 shares, representing 5.1% of Covista Inc common stock as of 03/31/2026. The filing attributes the shares to Funds managed or advised by Dimensional.
Does Dimensional claim direct beneficial ownership of these Covista shares?
No. The filing states the shares are owned by Funds managed by Dimensional and that Dimensional disclaims beneficial ownership, while reporting voting and dispositive powers for Section 13(d) purposes.
What voting and disposition powers does Dimensional report for ATGE shares?
Dimensional reports sole voting power of 1,730,764 shares and sole dispositive power of 1,773,564 shares for Covista common stock in the filing dated 03/31/2026.
Why are the shares reported under a Schedule 13G instead of a 13D?
Schedule 13G is used for passive or qualifying institutional investors; Dimensional filed under this schedule and included a note that holdings are held by managed Funds, consistent with institutional disclosure practices.
Who signed the Schedule 13G for Dimensional Fund Advisors?
Selwyn Notelovitz, Global Chief Compliance Officer, signed the filing on 04/09/2026, certifying the reported ownership and accompanying note about Fund ownership.
