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Livermore
Livermore
ZHEN

First Long Island Investors, LLC

SEC CIK
0001490429
Latest filing
Aug 13, 2026

The latest 13F from First Long Island Investors, LLC covers Q2 2026 (filed Aug 13, 2026): 73 long positions worth $1.41B. The top 10 holdings make up 42.0% of the portfolio, and the largest is Amphenol Corp (APH) at 5.6%. 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
10
Est. +$69.6M
Added
29
Est. +$85.5M
Reduced
21
Est. −$58.7M
Sold out
7
Est. −$61.9M

Top 5 holdings

Share of this quarter's portfolio value

  1. APHAmphenol Corp
    5.6%$78.5MHistory
  2. NVDANVIDIA Corp
    5.0%$71.0MHistory
  3. AMZNAmazon Com Inc
    4.9%$69.1MHistory
  4. MSFTMicrosoft Corp
    4.2%$59.9MHistory
  5. GOOGLAlphabet Inc.
    4.2%$59.1MHistory

Share of portfolio

Top 5 holdings and the other 68 positions, by share of portfolio value

  1. APH5.6%
  2. NVDA5.0%
  3. AMZN4.9%
  4. MSFT4.2%
  5. GOOGL4.2%
  6. Other 68 positions76.1%

Biggest buys

New and added positions, by estimated amount bought

  1. MUMicron Technology Inc
    +$33.7MNewHistory
  2. GEVGE Vernova Inc.
    +$20.2MAddedHistory
  3. APHAmphenol Corp
    +$14.9MAddedHistory
  4. LMTLockheed Martin Corp
    +$12.7MNewHistory
  5. HONHoneywell International Inc
    +$10.8MNewHistory

Largest weight increases

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

  1. MUMicron Technology Inc
    +2.39 pp0.0% → 2.4%History
  2. APHAmphenol Corp
    +1.87 pp3.7% → 5.6%History
  3. GEVGE Vernova Inc.
    +1.56 pp0.7% → 2.3%History
  4. LMTLockheed Martin Corp
    +0.90 pp0.0% → 0.9%History
  5. HONHoneywell International Inc
    +0.76 pp0.0% → 0.8%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. INTUIntuit Inc.
    −$13.8MSold outHistory
  2. LOWLowes Companies Inc
    −$13.4MReducedHistory
  3. ABTAbbott Laboratories
    −$13.4MReducedHistory
  4. ZTSZoetis Inc.
    −$12.8MSold outHistory
  5. SPOTSpotify Technology S.A.
    −$12.4MSold outHistory

Largest weight decreases

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

  1. ABTAbbott Laboratories
    −1.67 pp3.2% → 1.5%History
  2. LOWLowes Companies Inc
    −1.50 pp3.0% → 1.5%History
  3. INTUIntuit Inc.
    −1.12 pp1.1% → 0.0%History
  4. ZTSZoetis Inc.
    −1.04 pp1.0% → 0.0%History
  5. SPOTSpotify Technology S.A.
    −1.01 pp1.0% → 0.0%History

Metrics

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

Portfolio value
$1.41B
+$178.1M (+14.4%) vs. prior quarter
Positions
73
+3 vs. prior quarter
Top 10 concentration
42.0%
Top 10 as share of value
Turnover
9.1%
Q2 2026, one quarter
Average holding period
16.0 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 $1.41B (Q2 2026)

Q1 2021: $1.13BQ2 2021: $1.17BQ3 2021: $1.17BQ4 2021: $1.27BQ1 2022: $1.18BQ2 2022: $961.8MQ3 2022: $900.6MQ4 2022: $953.2MQ1 2023: $983.9MQ2 2023: $1.04BQ3 2023: $1.03BQ4 2023: $1.13BQ1 2024: $1.20BQ2 2024: $1.18BQ3 2024: $1.27BQ4 2024: $1.26BQ1 2025: $1.21BQ2 2025: $1.27BQ3 2025: $1.34BQ4 2025: $1.36BQ1 2026: $1.23BQ2 2026: $1.41B
Q1 2021Q2 2026
13F filings of First Long Island Investors, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 13, 202673$1.41BAPHNVDAAMZNvs. Q1 2026SEC
Q1 2026May 15, 202670$1.23BNVDAMSFTAMZNvs. Q4 2025SEC
Q4 2025Feb 13, 202674$1.36BMSFTAMZNNVDAvs. Q3 2025SEC
Q3 2025Nov 12, 202569$1.34BMSFTNVDAAMZNvs. Q2 2025SEC
Q2 2025Aug 12, 202565$1.27BMSFTAMZNADPvs. Q1 2025SEC
Q1 2025Jun 6, 202565$1.21BADPMSFTABTvs. Q4 2024SEC
Q4 2024Feb 14, 202566$1.26BMSFTAMZNADPvs. Q3 2024SEC
Q3 2024Nov 6, 202469$1.27BMSFTUNHADPvs. Q2 2024SEC
Q2 2024Aug 8, 202466$1.18BMSFTAMZNUNHvs. Q1 2024SEC
Q1 2024May 6, 202464$1.20BMSFTAMZNNVDAvs. Q4 2023SEC
Q4 2023Feb 14, 202460$1.13BMSFTUNHADPvs. Q3 2023SEC
Q3 2023Nov 14, 202359$1.03BMSFTADPUNHvs. Q2 2023SEC
Q2 2023Aug 8, 202359$1.04BMSFTADPUNHvs. Q1 2023SEC
Q1 2023May 11, 202355$983.9MMSFTUNHADPvs. Q4 2022SEC
Q4 2022Feb 14, 202357$953.2MUNHADPMSFTvs. Q3 2022SEC
Q3 2022Nov 14, 202257$900.6MUNHADPMSFTvs. Q2 2022SEC
Q2 2022Jul 28, 202254$961.8MUNHMSFTADPvs. Q1 2022SEC
Q1 2022May 9, 202264$1.18BUNHMSFTADPvs. Q4 2021SEC
Q4 2021Feb 4, 202265$1.27BMSFTUNHLOWvs. Q3 2021SEC
Q3 2021Nov 1, 202159$1.17BMSFTUNHLOWvs. Q2 2021SEC
Q2 2021Aug 6, 2021Amended67$1.17BMSFTUNHAMZNvs. Q1 2021SEC
Q1 2021May 10, 202163$1.13BMSFTADPUNH–SEC