Bruker Corp reports that Orbis Investment Management Ltd, Allan Gray Australia Pty Ltd and Orbis Investment Management (U.S.), L.P. together beneficially own 17,940,076 shares of Common Stock, equal to 11.8% of the class as disclosed in this Schedule 13G/A amendment.
The filing breaks down voting and dispositive power: Orbis Investment Management Ltd holds 16,852,868 shares of sole voting and dispositive power; Orbis Investment Management (U.S.), L.P. holds 1,058,886 shares; Allan Gray Australia Pty Ltd holds 28,322 shares. The reporting persons state they do not treat themselves as a Section 13(d)(3) group and each disclaims ownership of shares reported by the others.
Positive
None.
Negative
None.
Insights
Large passive stake disclosed: 11.8% beneficial ownership by Orbis-related reporting persons.
The filing shows a combined position of 17,940,076 shares representing 11.8% of common stock, with the bulk held by Orbis Investment Management Ltd (sole voting power on 16,852,868 shares). This identifies a sizeable institutional holder visible in public ownership records.
Key dependencies include any future amendments or sale notices; subsequent Form 13D/13G amendments would update percent ownership and voting power changes.
Filing follows Schedule 13G/A format and includes required disclosure and certifications.
The amendment includes Itemized disclosures: names, addresses, citizenship, CUSIP 116794108, and the ownership table with voting and dispositive powers. It also contains the comparability certification for non-U.S. institutions and the signatures of an attorney-in-fact.
Watch for any future attestations or group-status changes; the filing expressly disclaims Section 13(d)(3) group membership.
Key Figures
Beneficial ownership:17,940,076 sharesPercent of class:11.8%Orbis Ltd sole voting power:16,852,868 shares+3 more
6 metrics
Beneficial ownership17,940,076 sharesaggregate reported in Item 4(a)
Percent of class11.8%percent of common stock reported in Item 4(a)
Orbis Ltd sole voting power16,852,868 sharessole voting/dispositive power held by Orbis Investment Management Ltd
Orbis (U.S.) holdings1,058,886 sharessole voting/dispositive power held by Orbis Investment Management (U.S.), L.P.
Allan Gray holdings28,322 sharessole voting/dispositive power held by Allan Gray Australia Pty Ltd
CUSIP116794108identified in Item 3(b)
Key Terms
Schedule 13G/A, beneficially owned, sole dispositive power, Section 13(d)(3) group
4 terms
Schedule 13G/Aregulatory
"Item 1. (a) Name of issuer: BRUKER CORP"
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 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 powerfinancial
"7 | Sole Dispositive Power 16,852,868.00"
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.
Section 13(d)(3) groupregulatory
"none of the Reporting Persons represents that it is a member of a group for the purposes of Section 13(d)(3)"
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 3)
BRUKER CORP
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
116794108
(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):
116794108
1
Names of Reporting Persons
ORBIS INVESTMENT MANAGEMENT LTD
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
BERMUDA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
16,852,868.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
16,852,868.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
16,852,868.00
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)
11.1 %
12
Type of Reporting Person (See Instructions)
FI
SCHEDULE 13G
CUSIP Number(s):
116794108
1
Names of Reporting Persons
Allan Gray Australia Pty Ltd
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
AUSTRALIA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
28,322.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
28,322.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
28,322.00
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)
FI
SCHEDULE 13G
CUSIP Number(s):
116794108
1
Names of Reporting Persons
Orbis Investment Management (U.S.) 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
1,058,886.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
1,058,886.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,058,886.00
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)
0.7 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
BRUKER CORP
(b)
Address of issuer's principal executive offices:
40 MANNING RD, BILLERICA, MASSACHUSETTS
01821
Item 2.
(a)
Name of person filing:
ORBIS INVESTMENT MANAGEMENT LTD
Allan Gray Australia Pty Ltd
Orbis Investment Management (U.S.) L.P.
(b)
Address or principal business office or, if none, residence:
ORBIS INVESTMENT MANAGEMENT LTD: Orbis House, 25 Front Street, Hamilton, Bermuda HM11
Allan Gray Australia Pty Ltd: Level 2, Challis House, 4 Martin Place, Sydney NSW2000, Australia
Orbis Investment Management (U.S.) L.P.: One Letterman Drive, Building C, Suite CM-100, The Presidio of San Francisco, San Francisco, CA 94129-1492, USA
(c)
Citizenship:
ORBIS INVESTMENT MANAGEMENT LTD - BERMUDA
Allan Gray Australia Pty Ltd - AUSTRALIA
Orbis Investment Management (U.S.) L.P. - DELAWARE
(d)
Title of class of securities:
COMMON STOCK
(e)
CUSIP No.:
116794108
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).
Equivalent to IA (ORBIS INVESTMENT MANAGEMENT LTD and Allan Gray Australia Pty Ltd)
Item 4.
Ownership
(a)
Amount beneficially owned:
17,940,076
(b)
Percent of class:
11.8 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
ORBIS INVESTMENT MANAGEMENT LTD - 16,852,868
Allan Gray Australia Pty Ltd - 28,322
Orbis Investment Management (U.S.) L.P. - 1,058,886
(ii) Shared power to vote or to direct the vote:
ORBIS INVESTMENT MANAGEMENT LTD - 0
Allan Gray Australia Pty Ltd - 0
Orbis Investment Management (U.S.) L.P. - 0
(iii) Sole power to dispose or to direct the disposition of:
ORBIS INVESTMENT MANAGEMENT LTD - 16,852,868
Allan Gray Australia Pty Ltd - 28,322
Orbis Investment Management (U.S.) L.P. - 1,058,886
(iv) Shared power to dispose or to direct the disposition of:
ORBIS INVESTMENT MANAGEMENT LTD - 0
Allan Gray Australia Pty Ltd - 0
Orbis Investment Management (U.S.) L.P. - 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.
Other persons have the right to receive dividends from, the power to direct the receipt of dividends from, or the right to receive the proceeds from the sale of, the securities of the issuer identified in Item 4(a) that are beneficially owned by Orbis Investment Management Ltd.
Another person has the right to receive dividends from, the power to direct the receipt of dividends from, or the right to receive the proceeds from the sale of, the securities of the issuer identified in Item 4(a) that are beneficially owned by Allan Gray Australia Pty Ltd.
Another person has the right to receive dividends from, the power to direct the receipt of dividends from, or the right to receive the proceeds from the sale of, the securities of the issuer identified in Item 4(a) that are beneficially owned by Orbis Investment Management (U.S.), L.P.
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)(J), so indicate under Item 3(j) 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.
Information with respect to each of Orbis Investment Management Ltd, Allan Gray Australia Pty Ltd, and Orbis Investment Management (U.S.), L.P. (collectively, the "Reporting Persons") is given solely by each such Reporting Person and no Reporting Person has responsibility for the accuracy or completeness of information supplied by any other Reporting Person. Orbis Investment Management Ltd and Allan Gray Australia Pty Ltd are classified as a Non-U.S. Institution (FI) that is equivalent to an Investment Adviser (IA). Orbis Investment Management (U.S.), L.P. is classified as an Investment Adviser (IA). Notwithstanding that the Reporting Persons are making this filing together, none of the Reporting Persons represents that it is a member of a group for the purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended. Each Reporting Person disclaims beneficial ownership of any shares beneficially owned by any other Reporting Person as specified in Item 4(a).
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.
By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to ORBIS INVESTMENT MANAGEMENT LTD and Allan Gray Australia Pty Ltd is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.
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.
The filing states a combined beneficial ownership of 17,940,076 shares, representing 11.8% of Bruker Corp common stock. This figure is the aggregate reported by the named Reporting Persons in Item 4(a).
Who holds the voting power within the reported position?
Orbis Investment Management Ltd is reported to hold sole voting and dispositive power over 16,852,868 shares. Orbis (U.S.), L.P. holds sole voting/dispositive power for 1,058,886 shares and Allan Gray holds 28,322 shares.
Does the filing declare a group under Section 13(d)(3)?
No. The Reporting Persons state they are filing together but explicitly decline to represent that they form a group for purposes of Section 13(d)(3) and each disclaims beneficial ownership of shares reported by the others.
What CUSIP and class are disclosed in the amendment?
The amendment identifies the securities as Bruker Corp Common Stock with CUSIP 116794108. That identifier and class appear in Item 1 and Item 3 of the Schedule 13G/A.
Are any other parties entitled to dividends or proceeds on these shares?
The filing states that other persons have the right to receive dividends or proceeds with respect to shares beneficially owned by each Reporting Person, and notes that such rights exist for the shares reported by Orbis entities and Allan Gray.
