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Livermore
Livermore
ZHEN

Stolper Co

SEC CIK
0001808195
Latest filing
Jul 14, 2026

The latest 13F from Stolper Co covers Q2 2026 (filed Jul 14, 2026): 91 long positions worth $387.3M. The top 10 holdings make up 35.9% of the portfolio, and the largest is Berkshire Hathaway Inc (BRK.B) at 5.1%. Livermore has 25 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
7
Est. +$16.8M
Added
49
Est. +$77.7M
Reduced
33
Est. −$154.4M
Sold out
9
Est. −$23.4M

Top 5 holdings

Share of this quarter's portfolio value

  1. BRK.BBerkshire Hathaway Inc
    5.1%$19.9MHistory
  2. JPMJPMorgan Chase & Co
    4.7%$18.1MHistory
  3. AAPLApple Inc.
    4.3%$16.8MHistory
  4. GOOGAlphabet Inc.
    4.1%$15.8MHistory
  5. GSGoldman Sachs Group Inc
    3.2%$12.6MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. CSCOCisco Systems, Inc.
    +$10.8MAddedHistory
  2. NFGNational Fuel Gas Co
    +$8.34MNewHistory
  3. NOCNorthrop Grumman Corp
    +$7.42MAddedHistory
  4. BNYBank of New York Mellon Corp
    +$6.09MAddedHistory
  5. BACBank of America Corp
    +$5.54MAddedHistory

Largest weight increases

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

  1. CSCOCisco Systems, Inc.
    +2.85 pp0.0% → 2.8%History
  2. NFGNational Fuel Gas Co
    +2.15 pp0.0% → 2.2%History
  3. PSXPhillips 66
    +1.95 pp0.2% → 2.1%History
  4. NOCNorthrop Grumman Corp
    +1.90 pp0.2% → 2.1%History
  5. UNPUnion Pacific Corp
    +1.52 pp0.6% → 2.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. BRK.BBerkshire Hathaway Inc
    −$21.9MReducedHistory
  2. Vanguard S&P 500 ETF922908363
    −$21.0MReduced
  3. UNHUnitedHealth Group Inc
    −$18.2MReducedHistory
  4. DLRDigital Realty Trust, Inc.
    −$17.4MReducedHistory
  5. OKEONEOK Inc
    −$10.1MReducedHistory

Largest weight decreases

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

  1. DIAXNuveen Dow 30sm Dynamic Overwrite Fund
    −3.31 pp3.3% → 0.0%History
  2. PGProcter & Gamble Co
    −2.28 pp2.8% → 0.5%History
  3. TAT&T Inc.
    −2.08 pp2.8% → 0.7%History
  4. CVSCVS Health Corp
    −1.91 pp2.7% → 0.7%History
  5. VZVerizon Communications Inc
    −1.77 pp2.4% → 0.6%History

Metrics

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

Portfolio value
$387.3M
+$84.6M (+27.9%) vs. prior quarter
Positions
91
−2 vs. prior quarter
Top 10 concentration
35.9%
Top 10 as share of value
Turnover
27.4%
Q2 2026, one quarter
Average holding period
17.7 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 $387.3M (Q2 2026)

Q1 2021: $194.2MQ2 2021: $212.1MQ3 2021: $209.2MQ4 2021: $224.4MQ1 2022: $236.0MQ2 2022: $213.2MQ3 2022: $203.0MQ4 2022: $228.1MQ1 2023: $233.3MQ2 2023: $237.6MQ3 2023: $230.7MQ4 2023: $248.3MQ1 2024: $277.2MQ2 2024: $284.1MQ3 2024: $305.7MQ4 2024: $300.2MQ1 2025: $304.9MQ2 2025: $304.4MQ3 2025: $330.0MQ4 2025: $339.5MQ1 2026: $302.7MQ2 2026: $387.3M
Q1 2021Q2 2026
13F filings of Stolper Co by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 14, 202691$387.3MBRK.BJPMAAPLvs. Q1 2026SEC
Q1 2026Apr 13, 202693$302.7MBNYJPMAAPLvs. Q4 2025SEC
Q4 2025Jan 12, 202689$339.5MBRK.BJPMAAPLvs. Q3 2025SEC
Q3 2025Oct 10, 2025Amended89$330.0MBRK.BJPMAAPLvs. Q2 2025SEC
Q2 2025Jul 10, 202589$304.4MBRK.BJPMAAPLvs. Q1 2025SEC
Q1 2025Apr 8, 202587$304.9MBRK.BJPMAAPLvs. Q4 2024SEC
Q4 2024Jan 14, 202588$300.2MBRK.BAAPLJPMvs. Q3 2024SEC
Q3 2024Oct 9, 202489$305.7MBRK.BAAPLJPMvs. Q2 2024SEC
Q2 2024Aug 8, 202487$284.1MBRK.BAAPLJPMvs. Q1 2024SEC
Q1 2024Apr 9, 202487$277.2MBRK.BJPMAAPLvs. Q4 2023SEC
Q4 2023Jan 12, 202487$248.3MBRK.BAAPLJPMvs. Q3 2023SEC
Q3 2023Oct 10, 202384$230.7MBRK.BAAPLJPMvs. Q2 2023SEC
Q2 2023Jul 10, 202385$237.6MBRK.BAAPLJPMvs. Q1 2023SEC
Q1 2023Apr 11, 202385$233.3MBRK.BAAPLOKEvs. Q4 2022SEC
Q4 2022Jan 11, 202385$228.1MBRK.BAAPLUNHvs. Q3 2022SEC
Q3 2022Oct 7, 202281$203.0MBRK.BAAPLUNHvs. Q2 2022SEC
Q2 2022Jul 8, 202282$213.2MBRK.BAAPLUNHvs. Q1 2022SEC
Q1 2022Apr 14, 2022Amended86$236.0MBRK.BAAPLOKEvs. Q4 2021SEC
Q4 2021Jan 11, 202286$224.4MAAPLBRK.BJPMvs. Q3 2021SEC
Q3 2021Oct 13, 202185$209.2MBRK.BAAPLJPMvs. Q2 2021SEC
Q2 2021Jul 15, 202188$212.1MBRK.BAAPLJPMvs. Q1 2021SEC
Q1 2021Apr 9, 202186$194.2MBRK.BAAPLJPM–SEC