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Livermore
Livermore
ZHEN

Harvard Management Co Inc

SEC CIK
0001082621
Latest filing
Aug 14, 2026

The latest 13F from Harvard Management Co Inc covers Q2 2026 (filed Aug 14, 2026): 19 long positions worth $4.26B. The top 10 holdings make up 91.5% of the portfolio, and the largest is Space Exploration Technologies Corp (SPCX) at 51.8%. 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
6
Est. +$2.74B
Added
4
Est. +$104.9M
Reduced
5
Est. −$382.7M
Sold out
4
Est. −$197.1M

Top 5 holdings

Share of this quarter's portfolio value

  1. SPCXSpace Exploration Technologies Corp
    51.8%$2.21BHistory
  2. TSMTaiwan Semiconductor Manufacturing Co Ltd
    8.2%$349.6MHistory
  3. CBRSCerebras Systems Inc.
    5.6%$239.0MHistory
  4. AMZNAmazon Com Inc
    5.5%$234.2MHistory
  5. GOOGLAlphabet Inc.
    3.9%$165.2MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. SPCXSpace Exploration Technologies Corp
    +$2.21BNewHistory
  2. CBRSCerebras Systems Inc.
    +$239.0MNewHistory
  3. IAUiShares Gold Trust
    +$149.5MNewHistory
  4. NFLXNetflix Inc
    +$78.8MNewHistory
  5. AMZNAmazon Com Inc
    +$63.2MAddedHistory

Largest weight increases

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

  1. SPCXSpace Exploration Technologies Corp
    +51.84 pp0.0% → 51.8%History
  2. CBRSCerebras Systems Inc.
    +5.61 pp0.0% → 5.6%History
  3. IAUiShares Gold Trust
    +3.51 pp0.0% → 3.5%History
  4. NFLXNetflix Inc
    +1.85 pp0.0% → 1.8%History
  5. FRVOFervo Energy Co
    +0.86 pp0.0% → 0.9%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. UNPUnion Pacific Corp
    −$153.9MSold outHistory
  2. GLDSPDR Gold Trust
    −$149.4MReducedHistory
  3. BKNGBooking Holdings Inc.
    −$81.7MReducedConverted for a 25-for-1 splitHistory
  4. GOOGLAlphabet Inc.
    −$55.3MReducedHistory
  5. AVGOBroadcom Inc.
    −$51.2MReducedHistory

Largest weight decreases

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

  1. GLDSPDR Gold Trust
    −10.50 pp11.0% → 0.5%History
  2. UNPUnion Pacific Corp
    −8.48 pp8.5% → 0.0%History
  3. MSFTMicrosoft Corp
    −7.03 pp10.5% → 3.4%History
  4. BKNGBooking Holdings Inc.
    −6.37 pp8.1% → 1.7%History
  5. GOOGLAlphabet Inc.
    −5.90 pp9.8% → 3.9%History

Metrics

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

Portfolio value
$4.26B
+$2.45B (+134.8%) vs. prior quarter
Positions
19
+2 vs. prior quarter
Top 10 concentration
91.5%
Top 10 as share of value
Turnover
19.1%
Q2 2026, one quarter
Average holding period
4.2 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 $4.26B (Q2 2026)

Q1 2021: $1.79BQ2 2021: $1.74BQ3 2021: $1.71BQ4 2021: $1.07BQ1 2022: $990.7MQ2 2022: $863.8MQ3 2022: $803.7MQ4 2022: $789.7MQ1 2023: $951.8MQ2 2023: $1.02BQ3 2023: $885.8MQ4 2023: $1.18BQ1 2024: $1.57BQ2 2024: $1.65BQ3 2024: $1.74BQ4 2024: $1.69BQ1 2025: $1.13BQ2 2025: $1.44BQ3 2025: $2.10BQ4 2025: $2.08BQ1 2026: $1.82BQ2 2026: $4.26B
Q1 2021Q2 2026
13F filings of Harvard Management Co Inc by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 202619$4.26BSPCXTSMCBRSvs. Q1 2026SEC
Q1 2026May 15, 202617$1.82BTSMGLDMSFTvs. Q4 2025SEC
Q4 2025Feb 13, 202619$2.08BIBITGOOGLGLDvs. Q3 2025SEC
Q3 2025Nov 14, 202518$2.10BIBITMSFTAMZNvs. Q2 2025SEC
Q2 2025Aug 8, 202514$1.44BMSFTAMZNBKNGvs. Q1 2025SEC
Q1 2025May 9, 202514$1.13BMETABKNGMSFTvs. Q4 2024SEC
Q4 2024Feb 14, 202516$1.69BMETAInvesco QQQ Trust Series IGOOGLvs. Q3 2024SEC
Q3 2024Nov 14, 202415$1.74BMETAGOOGLBKNGvs. Q2 2024SEC
Q2 2024Aug 9, 202415$1.65BMETAInvesco QQQ Trust Series IGOOGLvs. Q1 2024SEC
Q1 2024May 10, 202412$1.57BGOOGLMETAInvesco QQQ Trust Series Ivs. Q4 2023SEC
Q4 2023Feb 9, 202414$1.18BMETAGOOGLLNWOvs. Q3 2023SEC
Q3 2023Nov 9, 202322$885.8MMETAGOOGLLNWOvs. Q2 2023SEC
Q2 2023Aug 11, 202333$1.02BMETAGOOGLLNWOvs. Q1 2023SEC
Q1 2023May 15, 202348$951.8MGOOGLMETALNWOvs. Q4 2022SEC
Q4 2022Feb 10, 202346$789.7MGOOGLLNWOMETAvs. Q3 2022SEC
Q3 2022Nov 10, 202247$803.7MGOOGLMETALNWOvs. Q2 2022SEC
Q2 2022Aug 12, 202245$863.8MGOOGLMETALNWOvs. Q1 2022SEC
Q1 2022May 13, 202244$990.7MMETAGOOGLLNWOvs. Q4 2021SEC
Q4 2021Feb 11, 202246$1.07BLNWOGOOGLRPRXvs. Q3 2021SEC
Q3 2021Nov 12, 202140$1.71BAAPLRPRXMETAvs. Q2 2021SEC
Q2 2021Aug 13, 202138$1.74BAAPLRPRXLNWOvs. Q1 2021SEC
Q1 2021May 7, 202138$1.79BRPRXICEADBE–SEC

13D and 13G filings

Companies where Harvard Management Co Inc reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Harvard Management Co Inc does not currently report owning 5% or more of any company.

Latest filings

1 filing on file made by Harvard Management Co Inc or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Harvard Management Co Inc
CompanyFiled (ET)FormStakeChangeEvent dateFiling
NCNANuCana plcFeb 12, 202113G/AOld format–––SEC