Dynamix Corp Schedule 13G/A reports that a group of related TD entities beneficially own 681,686 Class A ordinary shares, representing 4.1% of the class. The filing states TD Securities (USA) LLC holds sole voting and dispositive power over 50,000 shares and Toronto Dominion Bank holds sole voting and dispositive power over 631,686 shares. The filing is a joint filing made pursuant to Rule 13d-1(k) and includes a signed joint filing agreement dated May 15, 2026.
Positive
None.
Negative
None.
Insights
Group holds a modest 4.1% stake with split voting control.
The filing documents beneficial ownership of 681,686 Class A ordinary shares, labeled as 4.1% of the class. It specifies that TD Securities (USA) LLC directly controls 50,000 shares and Toronto Dominion Bank directly controls 631,686 shares.
The statement clarifies ownership is reported under a parent/subsidiary chain and cites Rule 13d-1(k). Timing and cash‑flow treatment are not described; subsequent filings would be needed to show any planned disposals or acquisitions.
Filing clarifies voting and dispositive powers across related entities.
The schedule lists sole voting and dispositive powers by two reporting entities rather than an aggregated, single decision‑maker; it includes standard disclaimers by parent entities that assert limited ownership beyond pecuniary interest.
Investors can use this disclosure to trace control paths; the filing does not assert group acting obligations beyond the joint filing agreement dated May 15, 2026.
Key Figures
Beneficial ownership:681,686 sharesPercent of class:4.1%Sole voting power (TDS):50,000 shares+2 more
5 metrics
Beneficial ownership681,686 sharesClass A ordinary shares
Percent of class4.1%percentage of Class A ordinary shares
Sole voting power (TDS)50,000 sharesTD Securities (USA) LLC sole power to vote
Sole voting power (TD Bank)631,686 sharesToronto Dominion Bank sole power to vote
Joint filing agreement dateMay 15, 2026execution date of joint filing agreement
Key Terms
Schedule 13G/A, beneficially owned, sole dispositive power, Rule 13d-1(k)
4 terms
Schedule 13G/Aregulatory
"This Schedule 13G/A reports beneficial ownership of the issuer"
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
beneficially ownedfinancial
"Amount beneficially owned: 681,686"
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 dispositive powerregulatory
"sole power to dispose or direct the disposition of 631,686 of these shares"
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.
Rule 13d-1(k)regulatory
"filed on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k)"
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
Dynamix Corp
(Name of Issuer)
Class A ordinary shares, par value $0.0001 per share
(Title of Class of Securities)
G2949D104
(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):
G2949D104
1
Names of Reporting Persons
TD SECURITIES (USA) LLC
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
50,000.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
50,000.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
50,000.00
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)
0.3 %
12
Type of Reporting Person (See Instructions)
BD
SCHEDULE 13G
CUSIP Number(s):
G2949D104
1
Names of Reporting Persons
Toronto Dominion Holdings USA 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
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
G2949D104
1
Names of Reporting Persons
TD Group US Holdings LLC
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
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
G2949D104
1
Names of Reporting Persons
Toronto Dominion Bank
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
CANADA (FEDERAL LEVEL)
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
631,686.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
631,686.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
631,686.00
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)
3.8 %
12
Type of Reporting Person (See Instructions)
FI
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Dynamix Corp
(b)
Address of issuer's principal executive offices:
PO BOX 309, UGLAND HOUSE, GRAND CAYMAN, CAYMAN ISLANDS
0000
Item 2.
(a)
Name of person filing:
TD SECURITIES (USA) LLC
Toronto Dominion Holdings USA Inc.
TD Group US Holdings LLC
Toronto Dominion Bank
(b)
Address or principal business office or, if none, residence:
ONE VANDERBILT AVENUE
NEW YORK, New York
10017
The address of TD Securities (USA) LLC's ("TDS") principal office and Toronto Dominion Holdings (U.S.A.), Inc.'s ("TDH") principal office is One Vanderbilt Avenue, New York, New York 10017. The address of TD Group US Holdings LLC's ("TD GUS") principal office is 251 Little Falls Drive, Wellington, Delaware 19808. The address of Toronto Dominion Bank's ("TD Bank") principal office is Toronto-Dominion Centre, 66 Wellington Street West, 12th Floor, TD Tower, Toronto, Ontario, Canada M5K 1A2.
(c)
Citizenship:
TD SECURITIES (USA) LLC - DELAWARE
Toronto Dominion Holdings USA Inc. - DELAWARE
TD Group US Holdings LLC - DELAWARE
Toronto Dominion Bank - CANADA (FEDERAL LEVEL)
(d)
Title of class of securities:
Class A ordinary shares, par value $0.0001 per share
(e)
CUSIP No.:
G2949D104
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).
Bank
Item 4.
Ownership
(a)
Amount beneficially owned:
681,686
TDS has the sole power to vote or direct the vote and the sole power to dispose or direct the disposition of 50,000 of these shares and TD Bank has the sole power to vote or direct the vote and the sole power to dispose or direct the disposition of 631,686 of these shares.
This schedule is jointly filed by TDS, TDH, TD GUS and TD Bank. TDH is the sole owner of TDS. TD GUS is the sole owner of TDH. TD Bank is the sole owner of TD GUS. TDH, TD GUS and TD Bank may be deemed to hold an indirect interest in the shares reported herein by TDS by virtue of their ownership of TDS.
Each of TDH, TD GUS and TD Bank disclaims ownership of the shares reported herein by TDS except to the extent of its pecuniary interest therein. Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the US Securities Exchange Act of 1934 or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group with respect to the Issuer or any securities of the Issuer.
(b)
Percent of class:
4.1 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
TD SECURITIES (USA) LLC - 50,000
Toronto Dominion Holdings USA Inc. - 0
TD Group US Holdings LLC - 0
Toronto Dominion Bank - 631,686
(ii) Shared power to vote or to direct the vote:
TD SECURITIES (USA) LLC - 0
Toronto Dominion Holdings USA Inc. - 0
TD Group US Holdings LLC - 0
Toronto Dominion Bank - 0
(iii) Sole power to dispose or to direct the disposition of:
TD SECURITIES (USA) LLC - 50,000
Toronto Dominion Holdings USA Inc. - 0
TD Group US Holdings LLC - 0
Toronto Dominion Bank - 631,686
(iv) Shared power to dispose or to direct the disposition of:
TD SECURITIES (USA) LLC - 0
Toronto Dominion Holdings USA Inc. - 0
TD Group US Holdings LLC - 0
Toronto Dominion Bank - 0
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
TD Securities (USA) LLC
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.
TD SECURITIES (USA) LLC
Signature:
Christina Petrou
Name/Title:
Christina Petrou / Executive Vice President and Chief Operating Officer
Date:
05/15/2026
Toronto Dominion Holdings USA Inc.
Signature:
Christina Petrou
Name/Title:
Christina Petrou / Executive Vice President and Chief Operating Officer
Date:
05/15/2026
TD Group US Holdings LLC
Signature:
Andre Ramos
Name/Title:
Andre Ramos / US Chief Financial Officer
Date:
05/15/2026
Toronto Dominion Bank
Signature:
Christina Petrou
Name/Title:
Christina Petrou / Executive Vice President and Chief Operating Officer
Date:
05/15/2026
Exhibit Information
Exhibit I
JOINT FILING AGREEMENT
This will confirm the agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the ordinary shares of Dynamix Corporation will be filed on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.
Dated: May 15, 2026
TD SECURITIES (USA) LLC
By: /s/ Christina Petrou
Title: Executive Vice President & Chief Operating Officer
TORONTO DOMINION HOLDINGS USA, INC.
By: /s/ Christina Petrou
Title: Executive Vice President & Chief Operating Officer
TD GROUP US HOLDINGS LLC
By: /s/ Andre Ramos
Title: US Chief Financial Officer
THE TORONTO-DOMINION BANK
By: /s/ Christina Petrou
Title: Executive Vice President & Chief Operating Office
The filing reports 681,686 shares beneficially owned, equal to 4.1% of the Class A ordinary shares. Ownership is allocated between reporting entities with detailed voting and dispositive powers disclosed.
Which TD entities have voting power over DYNC shares?
TD Securities (USA) LLC has sole voting and dispositive power over 50,000 shares, and Toronto Dominion Bank has sole voting and dispositive power over 631,686 shares, per the filing.
When was the joint filing agreement for this 13G/A signed?
The joint filing agreement is dated May 15, 2026. Signatures on the schedule reflect execution by representatives of the reporting entities on that date.
Is this report an acquisition filing under Section 13(d)?
This is filed as a Schedule 13G/A under Rule 13d-1(k), indicating a passive or permitted reporting arrangement rather than an active Section 13(d) acquisition statement.
Does the filing state TD entities act as a group for DYNC shares?
The filing includes a joint filing agreement but contains explicit language that none of the reporting persons admit to acting as a group for Section 13(d) purposes, other than making the joint filing.
