DOSSIER · 13F Holders · Q4 2025
BAND 0.5 04/01/28

Bandwidth Inc.

11 institutions still hold Bandwidth Inc. as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 05988JAD5·11 13F holders·last filed Dec 31, 2025
Market cap
13F value held
$33M
visible holders
Holders
11
filers reporting
Concentration
31.96%
D. E. Shaw & Co., Inc. #1
top holder share
AI Holders Summary · Q4 2025

11 institutions reported BAND 0.5 04/01/28 in Q4 2025. D. E. Shaw & Co., Inc. leads at 32.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
D. E. Shaw & Co., Inc.
CIK 0001009207
$10M11.9M0.01%Q4 2025
02
CORBYN INVESTMENT MANAGEMENT INC/MD
CIK 0000919538
$8M9.0M2.44%Q2 2026
03
Chicago Capital Management, LLC
CIK 0001580162
$8M8K6.79%Q2 2026
04
Calamos Advisors LLC
CIK 0001316507
$2M2.5M0.01%Q2 2026
05
SG Americas Securities, LLC
CIK 0001313360
$1M13K0.00%Q1 2026
06
Universal- Beteiligungs- und Servicegesellschaft mbH
CIK 0002057170
$1M1.2M0.00%Q2 2026
07
ZAZOVE ASSOCIATES LLC
CIK 0001009012
$565K601K0.05%Q2 2026
08
FINANCIAL CONSULATE, INC
CIK 0001624510
$535K573K0.06%Q2 2026
09
HB Wealth Management, LLC
CIK 0001911253
$305K327K0.00%Q2 2026
10
MORGAN STANLEY
CIK 0000895421
$93K100K0.00%Q2 2026
11
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025