L3VLUP
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
27
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 6 listed it in both
Shares listed
84,437,104
combined, among listed positions
Reported value
$579m
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: 17 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -28,641,473.

Managers listing ADT 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.

27 of 27 holders

ActionFiling
AQR Capital Management LLC33,546,946$220m0.10%Trimmed-11,391,85715 May 2026 (the filing on sec.gov)
AllianceBernstein LP16,424,985$133munder 0.1%Trimmed-682,70915 May 2026 (the filing on sec.gov)
Two Sigma Investments LP6,025,499$40munder 0.1%Added+1,418,03815 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,993,754$33munder 0.1%Added+110,33015 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd3,387,488$22munder 0.1%Added+840,81918 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP2,750,977$18munder 0.1%Trimmed-11,037,89114 May 2026 (the filing on sec.gov)
Invesco Ltd2,547,868$17munder 0.1%Added+1,103,59312 May 2026 (the filing on sec.gov)
Millennium Management LLC2,268,359$15munder 0.1%Added+703,26515 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC2,108,228$14munder 0.1%Trimmed-2,922,10515 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,759,240$12munder 0.1%Trimmed-6,207,46515 May 2026 (the filing on sec.gov)
Bridgewater Associates LP1,553,759$10munder 0.1%Trimmed-250,07015 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,351,406$8.9munder 0.1%Trimmed-1,585,80014 May 2026 (the filing on sec.gov)
Marshall Wace LLP1,246,308$8.2munder 0.1%Added+1,027,98015 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC1,042,954$6.9munder 0.1%Added+915,47115 May 2026 (the filing on sec.gov)
Winton Group Ltd978,781$6.4m0.23%Newnew12 May 2026 (the filing on sec.gov)
Man Group PLC532,330$3.5munder 0.1%Added+305,21615 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc407,330$2.7munder 0.1%Added+43,97415 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP341,991$2.2munder 0.1%Added+300,13815 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP233,979$1.5munder 0.1%Trimmed-534,70415 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP204,366$1.3munder 0.1%Added+127,23415 May 2026 (the filing on sec.gov)
Citadel Advisors LLC194,164$1.3munder 0.1%Added+102,81815 May 2026 (the filing on sec.gov)
Holocene Advisors LP155,652$1.0munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC155,252$1.0munder 0.1%Added+48,82427 Oct 2026 (the filing on sec.gov)
Woodline Partners LP119,386$784kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC81,716$535kunder 0.1%Trimmed-628,26013 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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.
7 in Q3 2024 to 7 in Q2 2026

Tracked managers listing it, at least.

051015201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ADT by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20187$211mn.a.n.a.
Q2 20187$279mn.a.n.a.
Q3 20185$387mn.a.n.a.
Q4 20182$189mn.a.n.a.
Q1 20193$106mn.a.n.a.
Q2 20193$90mn.a.n.a.
Q3 20194$91mn.a.n.a.
Q4 20194$103mn.a.n.a.
Q1 20204$34mn.a.n.a.
Q2 20203$4.4mn.a.n.a.
Q3 20204$16mn.a.n.a.
Q4 20202$5.7mn.a.n.a.
Q1 20211$875kn.a.n.a.
Q2 20213$196mn.a.n.a.
Q3 20213$150mn.a.n.a.
Q4 20212$173mn.a.n.a.
Q1 20221$156mn.a.n.a.
Q2 20221$118mn.a.n.a.
Q3 20223$161mn.a.n.a.
Q4 20224$178mn.a.n.a.
Q1 20233$130mn.a.n.a.
Q2 20232$131mn.a.n.a.
Q3 20234$122mn.a.n.a.
Q4 20232$120m03
Q1 20243$163m30
Q2 20243$205m21
Q3 20247$209m52
Q4 20246$216m43
Q1 202511$423m92
Q2 202511$540m92
Q3 202512$778m93
Q4 20258$727m1520
Q1 20265$372m1715
Q2 20267$312m1613

Compare with…

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

ADT and V →ADT and MA →ADT and MCO →Choose a stock to compare with ADT →

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