AMRZ in the 13F filings

Amrize LTD · CUSIP H2927K103

Quarter

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025

Quarter end: 31 Mar 2026; the date the book describes
Filed: 27 Oct 2026; latest of these filings; the earliest 12 May 2026
Managers listing it: 28; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q4 2025 and Q1 2026; 10 listed it in both
Shares listed: 34,529,217; combined, among listed positions
Reported value: $1.9bn; combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 13 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -12,013,686.

Managers listing AMRZ in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

ActionShare of book at least

28 of 28 holders

				Action		Filing
Harris Associates LP	11,344,767	$636m	0.85%	Trimmed	-34,780	15 May 2026 (the filing on sec.gov)
Wellington Management Group LLP	6,711,677	$365m	0.07%	Trimmed	-6,006,540	15 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)	3,576,588	$198m	under 0.1%	Trimmed	-1,440,862	15 May 2026 (the filing on sec.gov)
Jane Street Group LLC	2,243,106	$126m	under 0.1%	Added	+2,123,522	12 May 2026 (the filing on sec.gov)
Two Sigma Investments LP	1,957,129	$110m	0.09%	Added	+648,774	15 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC	1,956,600	$110m	0.17%	Added	+183,900	14 May 2026 (the filing on sec.gov)
Marshall Wace LLP	1,548,536	$84m	0.08%	Trimmed	-790,768	15 May 2026 (the filing on sec.gov)
Millennium Management LLC	1,134,317	$64m	under 0.1%	Added	+606,931	15 May 2026 (the filing on sec.gov)
Artisan Partners LP	815,938	$46m	0.07%	Trimmed	-59,425	13 May 2026 (the filing on sec.gov)
Citadel Advisors LLC	678,989	$38m	under 0.1%	Added	+296,036	15 May 2026 (the filing on sec.gov)
Invesco Ltd	632,199	$35m	under 0.1%	Added	+60,933	12 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC	482,620	$27m	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
AllianceBernstein LP	381,550	$21m	under 0.1%	Added	+72,245	15 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP	274,727	$15m	under 0.1%	Trimmed	-33,464	14 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	212,258	$12m	under 0.1%	Added	+20,000	15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC	103,421	$5.8m	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Soros Fund Management LLC	88,889	$5.0m	0.05%	Trimmed	-177,778	15 May 2026 (the filing on sec.gov)
GAMCO Investors Inc	79,347	$4.4m	under 0.1%	Trimmed	-670	14 May 2026 (the filing on sec.gov)
Quantbot Technologies LP	48,892	$2.7m	0.11%	Trimmed	-182,722	13 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP	41,070	$2.3m	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Verition Fund Management LLC	40,745	$2.3m	under 0.1%	Added	+35,324	15 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	36,878	$2.1m	under 0.1%	Added	+3,200	18 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC	36,215	$2.0m	under 0.1%	Trimmed	-2,808	27 Oct 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP	33,885	$1.9m	under 0.1%	Trimmed	-16,000	13 May 2026 (the filing on sec.gov)
Woodline Partners LP	32,953	$1.8m	under 0.1%	Trimmed	-205,956	15 May 2026 (the filing on sec.gov)

Page 1 of 2

What managers have written about AMRZ

Shown because the letter names the company. A letter is commentary; it is not a record of why a position changed.

By writers not tracked in the 13F universe

Source Capital's mid-2025 letter to shareholders, on the tariff sell-off · FPA · 14 Aug 2025 · Mentioned

Their positions are not shown: no 13F filings of theirs are tracked here.

Every letter beside its positions →

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Jane Street Group LLCexisting position · 2,243,106 shares now+2,123,522
Two Sigma Investments LPexisting position · 1,957,129 shares now+648,774
Millennium Management LLCexisting position · 1,134,317 shares now+606,931
Balyasny Asset Management LLCnew position · 482,620 shares now+482,620
Citadel Advisors LLCexisting position · 678,989 shares now+296,036

Reductions

Wellington Management Group LLPexisting position · 6,711,677 shares now-6,006,540
Fidelity (FMR LLC)existing position · 3,576,588 shares now-1,440,862
Marshall Wace LLPexisting position · 1,548,536 shares now-790,768
Woodline Partners LPexisting position · 32,953 shares now-205,956
Quantbot Technologies LPexisting position · 48,892 shares now-182,722

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Balyasny Asset Management LLC$27m
Squarepoint Ops LLC$5.8m
Susquehanna International Group LLP$2.3m

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.

7 in Q2 2025 to 10 in Q2 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

AMRZ and LIN →AMRZ and GLW →AMRZ and HWM →Choose a stock to compare with AMRZ →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own AMRZ, latest filings →Back to the 13F Explorer →

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Quarter	Holders	Reported value	Buyers	Sellers
Q2 2025	7	$1.2bn	7	0
Q3 2025	12	$1.8bn	10	2
Q4 2025	14	$2.1bn	14	20
Q1 2026	9	$1.4bn	13	19
Q2 2026	10	$1.6bn	11	17