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UNICOM Systems, Inc.

SEC CIK
0001996154
Latest filing
Oct 13, 2026

The latest 13F from UNICOM Systems, Inc. covers Q3 2026 (filed Oct 13, 2026): 39 long positions worth $1.46B. The top 10 holdings make up 69.0% of the portfolio, and the largest is Tesla, Inc. (TSLA) at 12.4%. Livermore has 8 filings on Form 13F from this institution, going back to Q4 2024.

What changed in Q3 2026

Full comparison

Share counts compared with Q2 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.

New
1
Est. +$32.9M
Added
4
Est. +$53.2M
Reduced
1
Est. −$44.5M
Sold out
1
Est. −$15.3M

Top 5 holdings

Share of this quarter's portfolio value

  1. TSLATesla, Inc.
    12.4%$181.2MHistory
  2. NVDANVIDIA Corp
    11.8%$172.9MHistory
  3. PLTRPalantir Technologies Inc.
    10.7%$156.9MHistory
  4. AVGOBroadcom Inc.
    7.8%$114.2MHistory
  5. SNDKSandisk Corp
    7.6%$111.5MHistory

Share of portfolio

Top 5 holdings and the other 34 positions, by share of portfolio value

  1. TSLA12.4%
  2. NVDA11.8%
  3. PLTR10.7%
  4. AVGO7.8%
  5. SNDK7.6%
  6. Other 34 positions49.7%

Biggest buys

New and added positions, by estimated amount bought

  1. SKHYSK hynix Inc.
    +$32.9MNewHistory
  2. TSLATesla, Inc.
    +$22.0MAddedHistory
  3. MRVLMarvell Technology, Inc.
    +$10.8MAddedHistory
  4. MUMicron Technology Inc
    +$10.7MAddedHistory
  5. SNDKSandisk Corp
    +$9.74MAddedHistory

Largest weight increases

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

  1. SKHYSK hynix Inc.
    +2.25 pp0.0% → 2.2%History
  2. MRVLMarvell Technology, Inc.
    +0.69 pp0.7% → 1.4%History
  3. MUMicron Technology Inc
    +0.60 pp3.8% → 4.4%History
  4. TSLATesla, Inc.
    +0.07 pp12.3% → 12.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. PEverpure, Inc.
    −$44.5MReducedHistory
  2. MDBMongoDB, Inc.
    −$15.3MSold outHistory

Largest weight decreases

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

  1. PEverpure, Inc.
    −1.20 pp2.5% → 1.3%History
  2. MDBMongoDB, Inc.
    −1.00 pp1.0% → 0.0%History

Metrics

13F metrics for Q3 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$1.46B
−$68.8M (−4.5%) vs. prior quarter
Positions
39
0 vs. prior quarter
Top 10 concentration
69.0%
Top 10 as share of value
Turnover
4.0%
Q3 2026, one quarter
Average holding period
6.1 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 2024), so positions held before then are understated.

13F filings by quarter

8 quarters, going back to Q4 2024. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $1.53B (Q2 2026)

Q4 2024: $411.7MQ1 2025: $491.4MQ2 2025: $722.3MQ3 2025: $1.01BQ4 2025: $1.02BQ1 2026: $975.8MQ2 2026: $1.53BQ3 2026: $1.46B
Q4 2024Q3 2026
13F filings of UNICOM Systems, Inc. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q3 2026Oct 13, 202639$1.46BTSLANVDAPLTRvs. Q2 2026SEC
Q2 2026Jul 8, 202639$1.53BTSLANVDASNDKvs. Q1 2026SEC
Q1 2026Apr 29, 202632$975.8MTSLANVDAPLTRvs. Q4 2025SEC
Q4 2025Jan 14, 202622$1.02BTSLAPLTRNVDAvs. Q3 2025SEC
Q3 2025Oct 21, 202519$1.01BTSLAPLTRNVDAvs. Q2 2025SEC
Q2 2025Aug 6, 202522$722.3MTSLANVDAPLTRvs. Q1 2025SEC
Q1 2025May 1, 202525$491.4MTSLANVDAPLTRvs. Q4 2024SEC
Q4 2024Jan 29, 202521$411.7MTSLANVDAAVGO–SEC