Skip to main content
Livermore
Livermore
ZHEN

First Business Financial Services, Inc.

FBIZ
Exchange
Nasdaq
Industry
State Commercial Banks
SEC CIK
0001521951

In the last 90 days, First Business Financial Services, Inc. insiders filed 0 open-market purchases and 1 sale; 141 institutions reported holding it in 13F filings for Q2 2026, worth $375.1M in total; no superinvestor holds it.

Holders of 5% or more of FBIZ

Holders whose latest Schedule 13D or 13G filing reports 5% or more of First Business Financial Services, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of FBIZ
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A6.10%505.6K shares–Apr 24, 20251 filingApr 24, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

5 Schedule 13D and 13G filings on First Business Financial Services, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on FBIZ
Filed (ET)FilerFormStakeChangeEvent dateFiling
Mar 26, 20266:21 PM ETVanguard Group Inc13G/A0.00%0 shares−5.41 ppfrom 5.41%Below 5%Mar 13, 2026SEC
Oct 17, 202512:45 PM ETBlackRock Portfolio Management LLC13G/A4.90%405.1K shares−1.10 ppfrom 6.00%Below 5%Sep 30, 2025SEC
Apr 30, 202510:58 AM ETVanguard Group Inc13G5.41%449.3K sharesNewMar 31, 2025SEC
Apr 24, 20259:27 AM ETBlackRock, Inc.13G/A6.10%505.6K shares–Mar 31, 2025SEC
Apr 15, 20255:04 PM ETBlackRock Portfolio Management LLC13G6.00%499.5K sharesNewMar 31, 2025SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell First Business Financial Services, Inc. shares.

No Form 144 notices for First Business Financial Services, Inc. are on file.