Skip to main content
Livermore
Livermore
ZHEN

Banc Funds Co LLC

SEC CIK
0001029311
Latest filing
Aug 13, 2026

The latest 13F from Banc Funds Co LLC covers Q2 2026 (filed Aug 13, 2026): 92 long positions worth $605.5M. The top 10 holdings make up 31.0% of the portfolio, and the largest is Old Second Bancorp Inc (OSBC) at 4.0%. Livermore has 23 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
5
Est. +$34.1M
Added
19
Est. +$11.3M
Reduced
28
Est. −$13.9M
Sold out
10
Est. −$32.6M

Top 5 holdings

Share of this quarter's portfolio value

  1. OSBCOld Second Bancorp Inc
    4.0%$24.1MHistory
  2. PBAMPrivate Bancorp of America, Inc.
    3.8%$23.2MHistory
  3. AVBHAvidbank Holdings, Inc.
    3.6%$22.1MHistory
  4. UNTYUnity Bancorp Inc
    3.6%$21.7MHistory
  5. FCBMFirst Carolina Financial Services, Inc.
    2.9%$17.7MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. FCBMFirst Carolina Financial Services, Inc.
    +$17.7MNewHistory
  2. CWBCCommunity West Bancshares
    +$6.46MNewHistory
  3. BHRBBurke & Herbert Financial Services Corp.
    +$5.92MNewHistory
  4. HOMBHome Bancshares Inc
    +$3.20MNewHistory
  5. FSUNFirstsun Capital Bancorp
    +$2.70MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. FCBMFirst Carolina Financial Services, Inc.
    +2.93 pp0.0% → 2.9%History
  2. CWBCCommunity West Bancshares
    +1.07 pp0.0% → 1.1%History
  3. BHRBBurke & Herbert Financial Services Corp.
    +0.98 pp0.0% → 1.0%History
  4. HOMBHome Bancshares Inc
    +0.53 pp0.0% → 0.5%History
  5. FSUNFirstsun Capital Bancorp
    +0.38 pp1.1% → 1.5%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Mountain Comm Bancor624004107
    −$8.00MSold out
  2. UBFOUnited Security Bancshares
    −$5.59MSold outHistory
  3. CBSHCommerce Bancshares Inc
    −$4.27MSold outHistory
  4. FNRNFirst Northern Community Bancorp
    −$3.72MSold outHistory
  5. LNKBLINKBANCORP, Inc.
    −$3.35MSold outHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. Mountain Comm Bancor624004107
    −1.49 pp1.5% → 0.0%
  2. UBFOUnited Security Bancshares
    −1.04 pp1.0% → 0.0%History
  3. CBSHCommerce Bancshares Inc
    −0.79 pp0.8% → 0.0%History
  4. FNRNFirst Northern Community Bancorp
    −0.69 pp0.7% → 0.0%History
  5. LNKBLINKBANCORP, Inc.
    −0.62 pp0.6% → 0.0%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$605.5M
+$68.3M (+12.7%) vs. prior quarter
Positions
92
−5 vs. prior quarter
Top 10 concentration
31.0%
Top 10 as share of value
Turnover
7.9%
Q2 2026, one quarter
Average holding period
19.0 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $1.36B (Q2 2021)

Q1 2021: $1.32BQ2 2021: $1.36BQ3 2021: $1.31BQ4 2021: $1.33BQ1 2022: $1.27BQ2 2022: $1.11BQ3 2022: $1.09BQ4 2022: $1.13BQ1 2023: $936.3MQ2 2023: $849.0MQ3 2023: $852.7MQ4 2023: $1.01BQ1 2024: $884.7MQ2 2024: $843.0MQ3 2024: $921.4MQ4 2024: $906.6MQ1 2025: $758.5MQ2 2025: $661.6MQ3 2025: $572.0MQ4 2025: $505.2MQ1 2026: $537.2MQ2 2026: $605.5M
Q1 2021Q2 2026
13F filings of Banc Funds Co LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 13, 202692$605.5MOSBCPBAMAVBHvs. Q1 2026SEC
Q1 2026May 14, 202697$537.2MPBAMOSBCUNTYvs. Q4 2025SEC
Q4 2025Feb 12, 202698$505.2MUNTYOSBCAmerican Business Bankvs. Q3 2025SEC
Q3 2025Nov 14, 2025111$572.0MUNTYOSBCAVBHvs. Q2 2025SEC
Q2 2025Aug 14, 2025115$661.6MUNTYFinemark Hldgs IncOSBCvs. Q1 2025SEC
Q1 2025May 14, 2025118$758.5MUNTYSSBKAmerican Business Bankvs. Q4 2024SEC
Q4 2024Feb 13, 2025121$906.6MUNTYOSBCAmerican Business Bankvs. Q3 2024SEC
Q3 2024Nov 14, 2024125$921.4MUNTYOSBCFirst BK Williamstown New Jevs. Q2 2024SEC
Q2 2024Aug 14, 2024127$843.0MOSBCUNTYTFINvs. Q1 2024SEC
Q1 2024May 13, 2024134$884.7MOSBCUNTYTFINvs. Q4 2023SEC
Q4 2023Feb 13, 2024145$1.01BOSBCUNTYTFINvs. Q3 2023SEC
Q3 2023Nov 13, 2023149$852.7MOSBCUNTYTFINvs. Q2 2023SEC
Q2 2023Aug 11, 2023155$849.0MOSBCUNTYTFINvs. Q1 2023SEC
Q1 2023May 12, 2023158$936.3MOSBCFinemark Hldgs IncUNTYvs. Q4 2022SEC
Q4 2022Feb 13, 2023166$1.13BOSBCPGCUNTYvs. Q3 2022SEC
Q3 2022Nov 14, 2022175$1.09BOSBCPGCAmerican Business Bankvs. Q2 2022SEC
Q2 2022Aug 12, 2022183$1.11BOSBCFinemark Hldgs IncAmerican Business Bankvs. Q1 2022SEC
Q1 2022May 11, 2022190$1.27BOSBCTFINFFWMvs. Q4 2021SEC
Q4 2021Feb 11, 2022197$1.33BTFINFinemark Hldgs IncFFWMvs. Q3 2021SEC
Q3 2021Nov 12, 2021195$1.31BTFINFinemark Hldgs IncFFWMvs. Q2 2021SEC
Q2 2021Aug 12, 2021Amended195$1.36BFinemark Hldgs IncAmerican Business BankPGCvs. Q1 2021SEC
Q1 2021May 12, 2021197$1.32BPGCFRSTFFWM–SEC

13D and 13G filings

Companies where Banc Funds Co LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

7 companies, largest stake first.

Companies where Banc Funds Co LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
CCNBCoastal Carolina Bancshares, Inc.13G/A6.20%466.8K shares–Feb 13, 20261 filingFeb 13, 2026SEC
Quantum Studios LLCCOMMON STOCK13G6.20%426.0K sharesNewFeb 13, 20261 filingFeb 13, 2026SEC
MNSBMainStreet Bancshares, Inc.13G/A5.60%422.0K shares–Apr 2, 20216 filingsFeb 13, 2026SEC
AVBHAvidbank Holdings, Inc.13G/A5.50%596.4K shares–Feb 11, 20215 filingsFeb 13, 2026SEC
Mountain Commerce Bancorp IncCOMMON STOCK13G/A5.50%351.3K shares–Feb 12, 20215 filingsFeb 13, 2026SEC
Grand River Commerce IncCOMMON STOCK13G/A5.10%357.4K shares–Feb 11, 20215 filingsFeb 13, 2026SEC
Oregon Pacific BancorpCOMMON STOCK13G/A5.00%361.9K shares–Feb 12, 20215 filingsFeb 17, 2026SEC

Latest filings

183 filings on file made by Banc Funds Co LLC or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Banc Funds Co LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
Prime Meridian Holding CoCOMMON STOCKFeb 17, 20267:31 PM ET13G/A2.30%76.4K shares–Below 5%Dec 31, 2025SEC
PBAMPrivate Bancorp of America, Inc.Feb 17, 20267:12 PM ET13G/A4.90%283.8K shares0.00 ppfrom 4.90%Below 5%Dec 31, 2025SEC
Community Heritage Financial, Inc.COMMON STOCKFeb 17, 20267:00 PM ET13G/A3.30%96.0K shares–Below 5%Dec 31, 2025SEC
MYFWFirst Western Financial IncFeb 17, 20266:42 PM ET13G/A3.40%346.1K shares–Below 5%Dec 31, 2025SEC
ISTRInvestar Holding CorpFeb 17, 20266:23 PM ET13G/A2.00%306.9K shares–Below 5%Dec 31, 2025SEC
First Reliance Bancshares IncCOMMON STOCKFeb 17, 20266:02 PM ET13G/A4.50%350.9K shares–Below 5%Dec 31, 2025SEC
FRSTPrimis Financial Corp.Feb 17, 20265:31 PM ET13G/A3.20%788.8K shares–Below 5%Dec 31, 2025SEC
FNRNFirst Northern Community BancorpFeb 17, 20265:05 PM ET13G/A1.90%301.7K shares–Below 5%Dec 31, 2025SEC
FineMark Holdings, Inc.COMMON STOCKFeb 17, 20264:44 PM ET13G/A1.80%219.4K shares–Below 5%Dec 31, 2025SEC
CZWICitizens Community Bancorp Inc.Feb 17, 20264:03 PM ET13G/A2.50%246.3K shares–Below 5%Dec 31, 2025SEC
UNTYUnity Bancorp IncFeb 17, 20263:16 PM ET13G/A3.70%375.5K shares–Below 5%Dec 31, 2025SEC
PBAMPrivate Bancorp of America, Inc.Feb 17, 20262:18 PM ET13G/A4.90%283.8K shares–Below 5%Dec 31, 2025SEC
Universa Black Swan Protection Protocol LXXI L.P.COMMON STOCKFeb 17, 20261:54 PM ET13G/A4.90%283.8K shares–Below 5%Dec 31, 2025SEC
Oregon Pacific BancorpCOMMON STOCKFeb 17, 20261:36 PM ET13G/A5.00%361.9K shares–Dec 31, 2025SEC
Grand River Commerce IncCOMMON STOCKFeb 13, 20269:44 PM ET13G/A5.10%357.4K shares–Dec 31, 2025SEC
Mountain Commerce Bancorp IncCOMMON STOCKFeb 13, 20269:29 PM ET13G/A5.50%351.3K shares–Dec 31, 2025SEC
AVBHAvidbank Holdings, Inc.Feb 13, 20269:13 PM ET13G/A5.50%596.4K shares–Dec 31, 2025SEC
MNSBMainStreet Bancshares, Inc.Feb 13, 20268:43 PM ET13G/A5.60%422.0K shares–Dec 31, 2025SEC
Quantum Studios LLCCOMMON STOCKFeb 13, 20268:02 PM ET13G6.20%426.0K sharesNewDec 31, 2025SEC
CCNBCoastal Carolina Bancshares, Inc.Feb 13, 20267:41 PM ET13G/A6.20%466.8K shares–Dec 31, 2025SEC