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Livermore
Livermore
ZHEN

Eagle Rock Investment Company, LLC

SEC CIK
0001911407
Latest filing
Jul 9, 2026

The latest 13F from Eagle Rock Investment Company, LLC covers Q2 2026 (filed Jul 9, 2026): 156 long positions worth $808.3M. The top 10 holdings make up 39.4% of the portfolio, and the largest is Vanguard Total Bond Market ETF at 7.2%. Livermore has 19 filings on Form 13F from this institution, going back to Q4 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. +$6.31M
Added
51
Est. +$40.8M
Reduced
53
Est. −$42.5M
Sold out
9
Est. −$9.29M

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard Total Bond Market ETF921937835
    7.2%$57.8M
  2. GOOGLAlphabet Inc.
    5.4%$43.8MHistory
  3. AVGOBroadcom Inc.
    5.0%$40.5MHistory
  4. KLACKLA Corp
    4.9%$39.5MHistory
  5. TSMTaiwan Semiconductor Manufacturing Co Ltd
    3.6%$28.9MHistory

Share of portfolio

Top 5 holdings and the other 151 positions, by share of portfolio value

  1. Vanguard Total Bond Market ETF7.2%
  2. GOOGL5.4%
  3. AVGO5.0%
  4. KLAC4.9%
  5. TSM3.6%
  6. Other 151 positions74.0%

Biggest buys

New and added positions, by estimated amount bought

  1. SYKStryker Corp
    +$8.27MAddedHistory
  2. URIUnited Rentals, Inc.
    +$4.52MAddedHistory
  3. BXBlackstone Inc.
    +$3.94MNewHistory
  4. Vanguard Short-Term Bond ETF921937827
    +$3.78MAdded
  5. VVisa Inc.
    +$3.19MAddedHistory

Largest weight increases

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

  1. SYKStryker Corp
    +0.99 pp0.2% → 1.2%History
  2. URIUnited Rentals, Inc.
    +0.82 pp0.8% → 1.6%History
  3. BXBlackstone Inc.
    +0.49 pp0.0% → 0.5%History
  4. VVisa Inc.
    +0.33 pp1.8% → 2.2%History
  5. TTWOTake Two Interactive Software Inc
    +0.29 pp0.9% → 1.2%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. MUMicron Technology Inc
    −$23.0MReducedHistory
  2. LPLALPL Financial Holdings Inc.
    −$2.97MReducedHistory
  3. AMATApplied Materials Inc
    −$2.35MReducedHistory
  4. ELVElevance Health, Inc.
    −$2.34MSold outHistory
  5. ICEIntercontinental Exchange, Inc.
    −$2.19MSold outHistory

Largest weight decreases

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

  1. LPLALPL Financial Holdings Inc.
    −0.53 pp0.8% → 0.3%History
  2. CVXChevron Corp
    −0.48 pp1.5% → 1.0%History
  3. HCAHCA Healthcare, Inc.
    −0.44 pp1.0% → 0.5%History
  4. NKENIKE, Inc.
    −0.37 pp0.5% → 0.2%History
  5. CORCencora, Inc.
    −0.35 pp1.5% → 1.1%History

Metrics

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

Portfolio value
$808.3M
+$120.1M (+17.5%) vs. prior quarter
Positions
156
−2 vs. prior quarter
Top 10 concentration
39.4%
Top 10 as share of value
Turnover
6.3%
Q2 2026, one quarter
Average holding period
16.3 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 2021), so positions held before then are understated.

13F filings by quarter

19 quarters, going back to Q4 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $808.3M (Q2 2026)

Q4 2021: $522.6MQ1 2022: $472.8MQ2 2022: $409.1MQ3 2022: $383.1MQ4 2022: $433.5MQ1 2023: $435.5MQ2 2023: $464.8MQ3 2023: $442.4MQ4 2023: $489.0MQ1 2024: $538.8MQ2 2024: $552.8MQ3 2024: $596.7MQ4 2024: $601.6MQ1 2025: $582.6MQ2 2025: $631.9MQ3 2025: $670.0MQ4 2025: $708.8MQ1 2026: $688.2MQ2 2026: $808.3M
Q4 2021Q2 2026
13F filings of Eagle Rock Investment Company, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 9, 2026156$808.3MVanguard Total Bond Market ETFGOOGLAVGOvs. Q1 2026SEC
Q1 2026Apr 9, 2026158$688.2MVanguard Total Bond Market ETFGOOGLAVGOvs. Q4 2025SEC
Q4 2025Jan 14, 2026162$708.8MVanguard Total Bond Market ETFAVGOGOOGLvs. Q3 2025SEC
Q3 2025Nov 7, 2025166$670.0MVanguard Total Bond Market ETFAVGOGOOGLvs. Q2 2025SEC
Q2 2025Jul 23, 2025158$631.9MVanguard Total Bond Market ETFAVGOMSFTvs. Q1 2025SEC
Q1 2025Apr 11, 2025160$582.6MVanguard Total Bond Market ETFAVGOGOOGLvs. Q4 2024SEC
Q4 2024Jan 15, 2025151$601.6MAVGOVanguard Total Bond Market ETFVanguard Short-Term Bond ETFvs. Q3 2024SEC
Q3 2024Oct 7, 2024155$596.7MVanguard Total Bond Market ETFAVGOVanguard Short-Term Bond ETFvs. Q2 2024SEC
Q2 2024Jul 12, 2024142$552.8MVanguard Total Bond Market ETFAVGOState Street SPDR Bloomberg 1-3 Month T-Bill ETFvs. Q1 2024SEC
Q1 2024Apr 15, 2024143$538.8MVanguard Total Bond Market ETFState Street SPDR Bloomberg 1-3 Month T-Bill ETFAVGOvs. Q4 2023SEC
Q4 2023Jan 12, 2024131$489.0MVanguard Total Bond Market ETFState Street SPDR Bloomberg 1-3 Month T-Bill ETFAVGOvs. Q3 2023SEC
Q3 2023Oct 10, 2023128$442.4MVanguard Total Bond Market ETFState Street SPDR Bloomberg 1-3 Month T-Bill ETFAVGOvs. Q2 2023SEC
Q2 2023Jul 19, 2023128$464.8MVanguard Total Bond Market ETFState Street SPDR Bloomberg 1-3 Month T-Bill ETFAVGOvs. Q1 2023SEC
Q1 2023Apr 10, 2023125$435.5MVanguard Total Bond Market ETFAVGOVanguard Short-Term Bond ETFvs. Q4 2022SEC
Q4 2022Jan 25, 2023135$433.5MVanguard Total Bond Market ETFAVGOVanguard Short-Term Bond ETFvs. Q3 2022SEC
Q3 2022Nov 8, 2022122$383.1MVanguard Total Bond Market ETFVanguard Short-Term Bond ETFAVGOvs. Q2 2022SEC
Q2 2022Aug 12, 2022122$409.1MVanguard Total Bond Market ETFVanguard Short-Term Bond ETFAVGOvs. Q1 2022SEC
Q1 2022May 11, 2022114$472.8MVanguard Short-Term Bond ETFAVGOVanguard Total Bond Market ETFvs. Q4 2021SEC
Q4 2021Feb 17, 2022104$522.6MAVGOVanguard Short-Term Bond ETFGOOGL–SEC