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BAND in the 13F filings

Bandwidth Inc · CUSIP 05988J103

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
19 Feb 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
17
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 1 listed it in both
Shares listed
4,089,897
combined, among listed positions
Reported value
$63m
combined, at the quarter end

Among the 92 comparable managers: 11 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +176,346.

Managers listing BAND 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.

17 of 17 holders

ActionFiling
Acadian Asset Management LLC809,005$12munder 0.1%Added+8,66510 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC618,900$9.6munder 0.1%Trimmed-30,00012 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)545,585$8.4munder 0.1%Added+180,23917 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP437,125$6.8munder 0.1%Trimmed-13717 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC427,474$6.6munder 0.1%Trimmed-4,65717 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.386,908$6.0munder 0.1%Added+19,58217 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP240,890$3.7munder 0.1%Added+74,42617 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP172,313$2.7munder 0.1%Trimmed-20,05613 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP114,610$1.8munder 0.1%Added+2,20017 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP92,831$1.4munder 0.1%Trimmed-29,39117 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP76,000$1.2munder 0.1%Added+7,80017 Feb 2026 (the filing on sec.gov)
Invesco Ltd66,988$1.0munder 0.1%Added+4,22319 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC30,288$468kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc29,896$462kunder 0.1%Added+2,25017 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC20,022$309kunder 0.1%Trimmed-28,97512 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC11,262$174kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP9,800$151kunder 0.1%Added+1,35110 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.

New (2)

Exited (3)

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.
3 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

035810201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BAND by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20171$12mn.a.n.a.
Q1 20181$18mn.a.n.a.
Q2 20182$24mn.a.n.a.
Q3 20185$34mn.a.n.a.
Q4 20185$36mn.a.n.a.
Q1 20195$76mn.a.n.a.
Q2 20196$148mn.a.n.a.
Q3 20194$142mn.a.n.a.
Q4 20195$176mn.a.n.a.
Q1 202010$324mn.a.n.a.
Q2 20208$470mn.a.n.a.
Q3 20209$531mn.a.n.a.
Q4 20208$491mn.a.n.a.
Q1 202110$297mn.a.n.a.
Q2 20219$305mn.a.n.a.
Q3 202110$294mn.a.n.a.
Q4 20218$269mn.a.n.a.
Q1 20228$114mn.a.n.a.
Q2 20223$35mn.a.n.a.
Q3 20223$20mn.a.n.a.
Q4 20222$27mn.a.n.a.
Q1 20232$5.0mn.a.n.a.
Q2 20232$6.1mn.a.n.a.
Q3 20232$4.8mn.a.n.a.
Q4 20232$4.7m02
Q1 20242$6.6m11
Q2 20242$11m20
Q3 20243$16m21
Q4 20243$15m03
Q1 20251$10.0m02
Q2 20251$12m01
Q3 20251$13m10
Q4 20251$12m119
Q1 20261$15m165
Q2 20264$92m2110

Compare with…

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

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

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