L3VLUP
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 4 Feb 2026
Managers listing it
16
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 4 listed it in both
Shares listed
37,060,902
combined, among listed positions
Reported value
$684m
combined, at the quarter end

Among the 92 comparable managers: 12 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +74,792.

Managers listing MAC in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

16 of 16 holders

ActionFiling
Fidelity (FMR LLC)19,750,982$365munder 0.1%Trimmed-1,342,44617 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC4,425,546$82munder 0.1%Added+511,43917 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP3,675,803$68munder 0.1%Added+2,142,73717 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd2,251,963$42munder 0.1%Trimmed-126,86617 Feb 2026 (the filing on sec.gov)
Millennium Management LLC1,666,879$31munder 0.1%Trimmed-1,409,36817 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC974,969$18m0.07%Added+821,78213 Feb 2026 (the filing on sec.gov)
Woodline Partners LP960,410$18m0.07%Added+66,55917 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC890,043$16m0.07%Newnew17 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC872,785$16munder 0.1%Added+104,18227 Oct 2026 (the filing on sec.gov)
Invesco Ltd613,957$11munder 0.1%Added+10,28719 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP481,287$8.9munder 0.1%Added+96,59117 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc250,213$4.6munder 0.1%Added+9,91917 Feb 2026 (the filing on sec.gov)
First Eagle Investment Management LLC170,610$3.1munder 0.1%Added+1,9004 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC64,760$1.2munder 0.1%Added+8,10617 Feb 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP10,379$192kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP316$6kunder 0.1%Trimmed-214,32610 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

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

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.
4 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

051015201420162018202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MAC by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201311$1.9bnn.a.n.a.
Q3 20137$1.4bnn.a.n.a.
Q4 20134$1.2bnn.a.n.a.
Q1 20144$1.1bnn.a.n.a.
Q2 20146$1.2bnn.a.n.a.
Q3 20145$741mn.a.n.a.
Q4 20149$1.2bnn.a.n.a.
Q1 20159$903mn.a.n.a.
Q2 20156$1.0bnn.a.n.a.
Q3 20156$1.2bnn.a.n.a.
Q4 20155$1.3bnn.a.n.a.
Q1 201613$1.3bnn.a.n.a.
Q2 20167$1.4bnn.a.n.a.
Q3 20169$1.3bnn.a.n.a.
Q4 20167$1.2bnn.a.n.a.
Q1 20174$834mn.a.n.a.
Q2 20177$762mn.a.n.a.
Q3 20177$833mn.a.n.a.
Q4 201710$841mn.a.n.a.
Q1 20187$637mn.a.n.a.
Q2 201811$587mn.a.n.a.
Q3 20186$514mn.a.n.a.
Q4 20188$440mn.a.n.a.
Q1 20199$589mn.a.n.a.
Q2 20199$370mn.a.n.a.
Q3 20194$350mn.a.n.a.
Q4 20195$60mn.a.n.a.
Q2 20204$26mn.a.n.a.
Q3 20202$737kn.a.n.a.
Q4 20201$4.2mn.a.n.a.
Q1 20216$82mn.a.n.a.
Q2 20216$136mn.a.n.a.
Q3 20215$106mn.a.n.a.
Q4 20214$47mn.a.n.a.
Q1 20224$43mn.a.n.a.
Q2 20224$25mn.a.n.a.
Q3 20223$24mn.a.n.a.
Q4 20221$2.7mn.a.n.a.
Q1 20232$3.2mn.a.n.a.
Q2 20232$3.6mn.a.n.a.
Q3 20232$18mn.a.n.a.
Q4 20232$5.1m20
Q1 20245$26m50
Q2 20247$80m61
Q3 20244$72m41
Q4 20245$279m24
Q1 20255$80m23
Q2 20254$56m22
Q3 20255$67m41
Q4 20255$97m1214
Q1 20262$51m612
Q2 20265$868m157

Compare with…

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

MAC and WELL →MAC and EQIX →MAC and PLD →Choose a stock to compare with MAC →

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 MAC, latest filings →Back to the 13F Explorer →