Skip to main content
Livermore
Livermore
ZHEN

Thayer Partners, LLC

SEC CIK
0002010185
Latest filing
Jul 31, 2026

The latest 13F from Thayer Partners, LLC covers Q2 2026 (filed Jul 31, 2026): 100 long positions worth $241.6M. The top 10 holdings make up 58.8% of the portfolio, and the largest is Vanguard S&P 500 ETF at 18.0%. Livermore has 3 filings on Form 13F from this institution, going back to Q4 2025.

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. +$3.70M
Added
62
Est. +$8.79M
Reduced
20
Est. −$1.79M
Sold out
4
Est. −$1.53M

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard S&P 500 ETF922908363
    18.0%$43.5M
  2. iShares Core U.S. Aggregate Bond ETF464287226
    9.2%$22.2M
  3. Vanguard Ftse Developed Markets ETF921943858
    9.0%$21.8M
  4. Invesco QQQ Trust Series I46090E103
    7.1%$17.2M
  5. iShares Tr464287440
    3.2%$7.82M

Share of portfolio

Top 5 holdings and the other 95 positions, by share of portfolio value

  1. Vanguard S&P 500 ETF18.0%
  2. iShares Core U.S. Aggregate Bond ETF9.2%
  3. Vanguard Ftse Developed Markets ETF9.0%
  4. Invesco QQQ Trust Series I7.1%
  5. iShares Tr3.2%
  6. Other 95 positions53.4%

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Core U.S. Aggregate Bond ETF464287226
    +$1.11MAdded
  2. Pgim ETF Tr69344A107
    +$960.1KAdded
  3. JPMorgan Nasdaq Equity Premium Income ETF46654Q203
    +$890.2KNew
  4. Vanguard Scottsdale FDS92206C102
    +$773.5KNew
  5. iShares Tr464287440
    +$647.0KAdded

Largest weight increases

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

  1. JPMorgan Nasdaq Equity Premium Income ETF46654Q203
    +0.37 pp0.0% → 0.4%
  2. CSCOCisco Systems, Inc.
    +0.37 pp0.3% → 0.7%History
  3. Vanguard Scottsdale FDS92206C102
    +0.32 pp0.0% → 0.3%
  4. Vanguard S&P 500 ETF922908363
    +0.20 pp17.8% → 18.0%
  5. GEGeneral Electric Co
    +0.20 pp1.0% → 1.2%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Putnam ETF Trust746729854
    −$870.1KSold out
  2. Vanguard Ftse Developed Markets ETF921943858
    −$774.5KReduced
  3. Invesco QQQ Trust Series I46090E103
    −$332.1KReduced
  4. HONHoneywell International Inc
    −$244.6KSold outHistory
  5. NEENextera Energy Inc
    −$209.1KSold outHistory

Largest weight decreases

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

  1. Vanguard Ftse Developed Markets ETF921943858
    −0.64 pp9.6% → 9.0%
  2. Putnam ETF Trust746729854
    −0.41 pp0.4% → 0.0%
  3. State Street Energy Select Sector SPDR ETF81369Y506
    −0.29 pp1.0% → 0.7%
  4. HONHoneywell International Inc
    −0.12 pp0.1% → 0.0%History
  5. iShares Select Dividend ETF464287168
    −0.10 pp0.6% → 0.5%

Metrics

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

Portfolio value
$241.6M
+$31.5M (+15.0%) vs. prior quarter
Positions
100
+6 vs. prior quarter
Top 10 concentration
58.8%
Top 10 as share of value
Turnover
1.5%
Q2 2026, one quarter
Average holding period
3.0 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 (Q4 2025), so positions held before then are understated.

13F filings by quarter

3 quarters, going back to Q4 2025. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $241.6M (Q2 2026)

Q4 2025: $205.6MQ1 2026: $210.1MQ2 2026: $241.6M
Q4 2025Q2 2026
13F filings of Thayer Partners, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 31, 2026100$241.6MVanguard S&P 500 ETFiShares Core U.S. Aggregate Bond ETFVanguard Ftse Developed Markets ETFvs. Q1 2026SEC
Q1 2026May 5, 202694$210.1MVanguard S&P 500 ETFiShares Core U.S. Aggregate Bond ETFVanguard Ftse Developed Markets ETFvs. Q4 2025SEC
Q4 2025Feb 5, 202690$205.6MVanguard S&P 500 ETFiShares Core U.S. Aggregate Bond ETFVanguard Ftse Developed Markets ETF–SEC