L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
15 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
20
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 4 listed it in both
Shares listed
20,417,098
combined, among listed positions
Reported value
$281m
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: 16 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -4,908,686.

Managers listing CLBT 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.

20 of 20 holders

ActionFiling
Fidelity (FMR LLC)8,489,643$117munder 0.1%Trimmed-857,53915 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC2,860,639$39m0.06%Added+365,70014 May 2026 (the filing on sec.gov)
Artisan Partners LP2,185,797$30munder 0.1%Added+750,90913 May 2026 (the filing on sec.gov)
Wellington Management Group LLP1,574,325$22munder 0.1%Added+184,60315 May 2026 (the filing on sec.gov)
Citadel Advisors LLC1,436,201$20munder 0.1%Added+912,44215 May 2026 (the filing on sec.gov)
Invesco Ltd858,034$12munder 0.1%Trimmed-4,745,20312 May 2026 (the filing on sec.gov)
Jane Street Group LLC714,514$9.8munder 0.1%Added+474,99112 May 2026 (the filing on sec.gov)
Light Street Capital Management LLC640,925$8.8m1.65%Added+148,17015 May 2026 (the filing on sec.gov)
Verition Fund Management LLC258,781$3.6munder 0.1%Added+217,48115 May 2026 (the filing on sec.gov)
Millennium Management LLC232,027$3.2munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Two Sigma Investments LP231,922$3.2munder 0.1%Added+122,21715 May 2026 (the filing on sec.gov)
Capital World Investors215,508$3.0munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Tudor Investment Corp151,538$2.1munder 0.1%Added+79,45715 May 2026 (the filing on sec.gov)
Marshall Wace LLP146,904$2.0munder 0.1%Trimmed-184,72615 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC133,898$1.8munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
ARK Investment Management LLC126,183$1.7munder 0.1%Added+12,11712 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP101,616$1.4munder 0.1%Added+21,63215 May 2026 (the filing on sec.gov)
AQR Capital Management LLC34,102$470kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
AllianceBernstein LP14,141$255kunder 0.1%Held015 May 2026 (the filing on sec.gov)
PDT Partners LLC10,400$143kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)

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.
10 in Q3 2024 to 3 in Q2 2026

Tracked managers listing it, at least.

05101520222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CLBT by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20211$63mn.a.n.a.
Q4 20211$54mn.a.n.a.
Q1 20222$46mn.a.n.a.
Q2 20222$36mn.a.n.a.
Q3 20222$28mn.a.n.a.
Q4 20222$20mn.a.n.a.
Q1 20232$20mn.a.n.a.
Q2 20232$18mn.a.n.a.
Q3 20233$31mn.a.n.a.
Q4 20233$29m12
Q1 20245$57m23
Q2 20244$56m13
Q3 202410$188m91
Q4 202412$279m67
Q1 202511$220m65
Q2 20258$151m45
Q3 20255$120m32
Q4 20256$135m1012
Q1 20264$80m168
Q2 20263$69m1014

Compare with…

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

CLBT and GOOGL →CLBT and AMZN →CLBT and MSFT →Choose a stock to compare with CLBT →

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