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Livermore
Livermore
ZHEN

NorthStar Asset Management LLC

SEC CIK
0002011587
Latest filing
Aug 5, 2026

The latest 13F from NorthStar Asset Management LLC covers Q2 2026 (filed Aug 5, 2026): 106 long positions worth $246.0M. The top 10 holdings make up 54.0% of the portfolio, and the largest is iShares Core S&P U.S. Growth ETF at 12.4%. Livermore has 11 filings on Form 13F from this institution, going back to Q4 2023.

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
14
Est. +$3.20M
Added
48
Est. +$9.24M
Reduced
38
Est. −$1.97M
Sold out
4
Est. −$1.05M

Top 5 holdings

Share of this quarter's portfolio value

  1. iShares Core S&P U.S. Growth ETF464287671
    12.4%$30.4M
  2. Goldman Sachs ETF Tr381430503
    10.6%$26.0M
  3. NVDANVIDIA Corp
    6.2%$15.2MHistory
  4. Vanguard Morningstar Mid-Cap Growth ETF922908538
    5.9%$14.6M
  5. Vanguard Ftse Developed Markets ETF921943858
    3.7%$9.04M

Share of portfolio

Top 5 holdings and the other 101 positions, by share of portfolio value

  1. iShares Core S&P U.S. Growth ETF12.4%
  2. Goldman Sachs ETF Tr10.6%
  3. NVDA6.2%
  4. Vanguard Morningstar Mid-Cap Growth ETF5.9%
  5. Vanguard Ftse Developed Markets ETF3.7%
  6. Other 101 positions61.3%

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Core S&P U.S. Growth ETF464287671
    +$2.13MAdded
  2. Goldman Sachs ETF Tr381430503
    +$1.41MAdded
  3. Vanguard Morningstar Mid-Cap Growth ETF922908538
    +$1.10MAdded
  4. American Centy ETF Tr025072604
    +$892.4KAdded
  5. iShares Tr464288257
    +$567.7KNew

Largest weight increases

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

  1. iShares Core S&P U.S. Growth ETF464287671
    +1.10 pp11.3% → 12.4%
  2. Vanguard Morningstar Mid-Cap Growth ETF922908538
    +0.46 pp5.5% → 5.9%
  3. American Centy ETF Tr025072604
    +0.38 pp2.0% → 2.4%
  4. AMDAdvanced Micro Devices Inc
    +0.27 pp0.2% → 0.5%History
  5. iShares Tr464288257
    +0.23 pp0.0% → 0.2%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. INTUIntuit Inc.
    −$323.0KSold outHistory
  2. Profesionally Managed Portfo74316P579
    −$293.7KReduced
  3. RTXRTX Corp
    −$269.3KSold outHistory
  4. PANWPalo Alto Networks Inc
    −$239.4KReducedHistory
  5. PFEPfizer Inc
    −$233.5KSold outHistory

Largest weight decreases

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

  1. Goldman Sachs ETF Tr381430529
    −0.60 pp3.6% → 3.0%
  2. COSTCostco Wholesale Corp
    −0.39 pp1.8% → 1.4%History
  3. BRK.BBerkshire Hathaway Inc
    −0.27 pp2.0% → 1.7%History
  4. NVDANVIDIA Corp
    −0.24 pp6.4% → 6.2%History
  5. METAMeta Platforms, Inc.
    −0.21 pp1.1% → 0.9%History

Metrics

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

Portfolio value
$246.0M
+$38.9M (+18.8%) vs. prior quarter
Positions
106
+10 vs. prior quarter
Top 10 concentration
54.0%
Top 10 as share of value
Turnover
1.3%
Q2 2026, one quarter
Average holding period
10.3 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 (Q4 2023), so positions held before then are understated.

13F filings by quarter

11 quarters, going back to Q4 2023. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $246.0M (Q2 2026)

Q4 2023: $109.5MQ1 2024: $132.0MQ2 2024: $144.3MQ3 2024: $149.9MQ4 2024: $157.0MQ1 2025: $159.9MQ2 2025: $189.6MQ3 2025: $208.8MQ4 2025: $222.3MQ1 2026: $207.1MQ2 2026: $246.0M
Q4 2023Q2 2026
13F filings of NorthStar Asset Management LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 5, 2026106$246.0MiShares Core S&P U.S. Growth ETFGoldman Sachs ETF TrNVDAvs. Q1 2026SEC
Q1 2026May 8, 202696$207.1MiShares Core S&P U.S. Growth ETFGoldman Sachs ETF TrNVDAvs. Q4 2025SEC
Q4 2025Feb 10, 2026108$222.3MiShares Core S&P U.S. Growth ETFGoldman Sachs ETF TrNVDAvs. Q3 2025SEC
Q3 2025Nov 7, 202599$208.8MiShares Core S&P U.S. Growth ETFGoldman Sachs ETF TrNVDAvs. Q2 2025SEC
Q2 2025Aug 12, 202594$189.6MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q1 2025SEC
Q1 2025May 6, 202590$159.9MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q4 2024SEC
Q4 2024Jan 23, 202585$157.0MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q3 2024SEC
Q3 2024Nov 12, 202480$149.9MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q2 2024SEC
Q2 2024Aug 5, 202478$144.3MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q1 2024SEC
Q1 2024May 6, 202479$132.0MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFNVDAvs. Q4 2023SEC
Q4 2023Feb 12, 202475$109.5MGoldman Sachs ETF TriShares Core S&P U.S. Growth ETFVanguard Morningstar Mid-Cap Growth ETF–SEC