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Livermore
Livermore
ZHEN

Searle & Co.

SEC CIK
0000710127
Latest filing
Jul 27, 2026

The latest 13F from Searle & Co. covers Q2 2026 (filed Jul 27, 2026): 194 long positions worth $445.1M. The top 10 holdings make up 34.0% of the portfolio, and the largest is Apple Inc. (AAPL) at 6.0%. Livermore has 22 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
15
Est. +$4.73M
Added
62
Est. +$10.8M
Reduced
16
Est. −$658.0K
Sold out
15
Est. −$20.0M

Top 5 holdings

Share of this quarter's portfolio value

  1. AAPLApple Inc.
    6.0%$26.6MHistory
  2. CATCaterpillar Inc
    4.9%$21.7MHistory
  3. PANWPalo Alto Networks Inc
    4.4%$19.5MHistory
  4. MSFTMicrosoft Corp
    3.4%$15.1MHistory
  5. AXPAmerican Express Co
    3.2%$14.1MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. MPLXMPLX LP
    +$1.63MAddedHistory
  2. MUMicron Technology Inc
    +$1.15MAddedHistory
  3. CVXChevron Corp
    +$801.1KAddedHistory
  4. CATCaterpillar Inc
    +$745.4KAddedHistory
  5. LLYEli Lilly & Co
    +$635.8KAddedHistory

Largest weight increases

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

  1. CATCaterpillar Inc
    +1.37 pp3.5% → 4.9%History
  2. MUMicron Technology Inc
    +1.13 pp0.4% → 1.6%History
  3. CSCOCisco Systems, Inc.
    +0.49 pp1.2% → 1.7%History
  4. INTCIntel Corp
    +0.36 pp0.2% → 0.6%History
  5. MPLXMPLX LP
    +0.34 pp0.2% → 0.6%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. HONHoneywell International Inc
    −$6.21MSold outHistory
  2. AZNAstraZeneca PLC
    −$3.42MSold outHistory
  3. Bank of Amer Corp060505682
    −$2.91MSold out
  4. BNYBank of New York Mellon Corp
    −$2.71MSold outHistory
  5. SEESealed Air Corp
    −$1.66MSold outHistory

Largest weight decreases

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

  1. HONHoneywell International Inc
    −1.56 pp1.6% → 0.0%History
  2. AZNAstraZeneca PLC
    −0.86 pp0.9% → 0.0%History
  3. Bank of Amer Corp060505682
    −0.73 pp0.7% → 0.0%
  4. BNYBank of New York Mellon Corp
    −0.68 pp0.7% → 0.0%History
  5. SEESealed Air Corp
    −0.42 pp0.4% → 0.0%History

Metrics

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

Portfolio value
$445.1M
+$47.4M (+11.9%) vs. prior quarter
Positions
194
0 vs. prior quarter
Top 10 concentration
34.0%
Top 10 as share of value
Turnover
3.7%
Q2 2026, one quarter
Average holding period
19.7 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 $445.1M (Q2 2026)

Q1 2021: $224.3MQ2 2021: $244.5MQ3 2021: $244.2MQ4 2021: $274.9MQ1 2022: $271.1MQ2 2022: $253.6MQ3 2022: $260.2MQ4 2022: $293.2MQ1 2023: $305.6MQ2 2023: $322.9MQ3 2023: $293.9MQ4 2023: $365.6MQ1 2024: $392.1MQ2 2024: $426.7MQ3 2024: $400.9MQ4 2024: $346.9MQ1 2025: $350.9MQ2 2025: $354.0MQ3 2025: $377.5MQ4 2025: $387.6MQ1 2026: $397.7MQ2 2026: $445.1M
Q1 2021Q2 2026
13F filings of Searle & Co. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 27, 2026194$445.1MAAPLCATPANWvs. Q1 2026SEC
Q1 2026May 8, 2026194$397.7MAAPLMSFTCATvs. Q4 2025SEC
Q4 2025Feb 13, 2026187$387.6MAAPLMSFTAXPvs. Q3 2025SEC
Q3 2025Nov 4, 2025185$377.5MAAPLMSFTAXPvs. Q2 2025SEC
Q2 2025Aug 7, 2025183$354.0MMSFTAAPLAXPvs. Q1 2025SEC
Q1 2025May 15, 2025176$350.9MAAPLMSFTAXPvs. Q4 2024SEC
Q4 2024Feb 14, 2025177$346.9MAAPLMSFTAXPvs. Q3 2024SEC
Q3 2024Oct 22, 2024171$400.9MJPMAAPLMSFTvs. Q2 2024SEC
Q2 2024Jul 30, 2024184$426.7MJPMAAPLXOMvs. Q1 2024SEC
Q1 2024May 9, 2024163$392.1MJPMAAPLXOMvs. Q4 2023SEC
Q4 2023Feb 6, 2024159$365.6MJPMAAPLXOMvs. Q3 2023SEC
Q3 2023Nov 6, 2023144$293.9MJPMAAPLMSFTvs. Q2 2023SEC
Q2 2023Aug 11, 2023151$322.9MJPMAAPLMSFTvs. Q1 2023SEC
Q1 2023Jun 1, 2023148$305.6MJPMAAPLMSFTvs. Q4 2022SEC
Q4 2022Feb 6, 2023148$293.2MJPMAAPLMSFTvs. Q3 2022SEC
Q3 2022Oct 27, 2022141$260.2MJPMAAPLMSFTvs. Q2 2022SEC
Q2 2022Aug 3, 2022148$253.6MAAPLMSFTXOMvs. Q1 2022SEC
Q1 2022May 10, 2022153$271.1MAAPLMSFTBACvs. Q4 2021SEC
Q4 2021Jan 19, 2022160$274.9MAAPLMSFTBACvs. Q3 2021SEC
Q3 2021Oct 8, 2021148$244.2MAAPLMSFTBACvs. Q2 2021SEC
Q2 2021Jul 29, 2021147$244.5MAAPLMSFTBACvs. Q1 2021SEC
Q1 2021May 12, 2021141$224.3MAAPLMSFTBAC–SEC