Skip to main content
Livermore
Livermore
ZHEN

Aristotle Capital Boston, LLC

SEC CIK
0001633911
Latest filing
Aug 14, 2026

The latest 13F from Aristotle Capital Boston, LLC covers Q2 2026 (filed Aug 14, 2026): 119 long positions worth $1.49B. The top 10 holdings make up 19.7% of the portfolio, and the largest is MACOM Technology Solutions Holdings, Inc. (MTSI) at 2.6%. 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
2
Est. +$28.3M
Added
6
Est. +$18.3M
Reduced
111
Est. −$348.7M
Sold out
5
Est. −$38.3M

Top 5 holdings

Share of this quarter's portfolio value

  1. MTSIMACOM Technology Solutions Holdings, Inc.
    2.6%$39.1MHistory
  2. HASIHA Sustainable Infrastructure Capital, Inc.
    2.2%$33.1MHistory
  3. LFUSLittelfuse Inc
    2.2%$32.7MHistory
  4. AERAerCap Holdings N.V.
    2.0%$30.1MHistory
  5. HQYHealthequity, Inc.
    2.0%$30.1MHistory

Share of portfolio

Top 5 holdings and the other 114 positions, by share of portfolio value

  1. MTSI2.6%
  2. HASI2.2%
  3. LFUS2.2%
  4. AER2.0%
  5. HQY2.0%
  6. Other 114 positions88.9%

Biggest buys

New and added positions, by estimated amount bought

  1. UMBFUmb Financial Corp
    +$25.9MNewHistory
  2. IPGPIpg Photonics Corp
    +$8.28MAddedHistory
  3. WSBCWesbanco Inc
    +$5.84MAddedHistory
  4. JLLJones Lang Lasalle Inc
    +$2.42MNewHistory
  5. iShares Russell 2000 ETF464287655
    +$1.51MAdded

Largest weight increases

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

  1. UMBFUmb Financial Corp
    +1.74 pp0.0% → 1.7%History
  2. IPGPIpg Photonics Corp
    +0.57 pp0.1% → 0.7%History
  3. WSBCWesbanco Inc
    +0.53 pp0.6% → 1.1%History
  4. iShares Russell 2000 ETF464287655
    +0.20 pp0.3% → 0.5%
  5. iShares Core S&P Small Cap ETF464287804
    +0.20 pp0.5% → 0.7%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. MTSIMACOM Technology Solutions Holdings, Inc.
    −$39.3MReducedHistory
  2. AEISAdvanced Energy Industries Inc
    −$37.5MReducedHistory
  3. KNKnowles Corp
    −$33.7MReducedHistory
  4. BYByline Bancorp, Inc.
    −$21.3MSold outHistory
  5. VRRMVerra Mobility Corp
    −$9.31MSold outHistory

Largest weight decreases

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

  1. AEISAdvanced Energy Industries Inc
    −1.76 pp3.0% → 1.3%History
  2. BYByline Bancorp, Inc.
    −1.32 pp1.3% → 0.0%History
  3. KNKnowles Corp
    −1.07 pp1.6% → 0.5%History
  4. AGIAlamos Gold Inc
    −0.82 pp2.1% → 1.3%History
  5. HURNHuron Consulting Group Inc.
    −0.66 pp2.0% → 1.3%History

Metrics

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

Portfolio value
$1.49B
−$119.7M (−7.4%) vs. prior quarter
Positions
119
−3 vs. prior quarter
Top 10 concentration
19.7%
Top 10 as share of value
Turnover
3.0%
Q2 2026, one quarter
Average holding period
17.1 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 (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 $4.49B (Q1 2021)

Q1 2021: $4.49BQ2 2021: $4.37BQ3 2021: $4.26BQ4 2021: $4.27BQ1 2022: $3.96BQ2 2022: $3.35BQ3 2022: $2.96BQ4 2022: $3.17BQ1 2023: $3.24BQ2 2023: $3.33BQ3 2023: $3.10BQ4 2023: $3.27BQ1 2024: $3.29BQ2 2024: $2.97BQ3 2024: $3.02BQ4 2024: $2.70BQ1 2025: $2.00BQ2 2025: $1.96BQ3 2025: $1.94BQ4 2025: $1.82BQ1 2026: $1.61BQ2 2026: $1.49B
Q1 2021Q2 2026
13F filings of Aristotle Capital Boston, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 2026119$1.49BMTSIHASILFUSvs. Q1 2026SEC
Q1 2026May 15, 2026122$1.61BAEISMTSIHASIvs. Q4 2025SEC
Q4 2025Feb 17, 2026125$1.82BHURNMTSIAERvs. Q3 2025SEC
Q3 2025Nov 14, 2025127$1.94BHURNACIWDYvs. Q2 2025SEC
Q2 2025Aug 14, 2025127$1.96BDYITRIHURNvs. Q1 2025SEC
Q1 2025May 15, 2025125$2.00BHURNAERACIWvs. Q4 2024SEC
Q4 2024Feb 14, 2025127$2.70BHURNMTSIMMSIvs. Q3 2024SEC
Q3 2024Nov 14, 2024127$3.02BMMSIAERDYvs. Q2 2024SEC
Q2 2024Aug 14, 2024126$2.97BAERMMSIHURNvs. Q1 2024SEC
Q1 2024May 15, 2024128$3.29BAERITRIACHCvs. Q4 2023SEC
Q4 2023Feb 14, 2024131$3.27BACHCHURNAERvs. Q3 2023SEC
Q3 2023Nov 14, 2023129$3.10BHURNMTSIACHCvs. Q2 2023SEC
Q2 2023Aug 14, 2023132$3.33BACHCDYMMSIvs. Q1 2023SEC
Q1 2023May 15, 2023132$3.24BACHCHURNMMSIvs. Q4 2022SEC
Q4 2022Feb 14, 2023133$3.17BACHCMMSIHURNvs. Q3 2022SEC
Q3 2022Nov 14, 2022133$2.96BACHCDYMMSIvs. Q2 2022SEC
Q2 2022Aug 15, 2022133$3.35BDYACHCMMSIvs. Q1 2022SEC
Q1 2022May 16, 2022133$3.96BROGEFORMMSIvs. Q4 2021SEC
Q4 2021Feb 14, 2022134$4.27BEFORROGMTSIvs. Q3 2021SEC
Q3 2021Nov 15, 2021136$4.26BMMSICRLEFORvs. Q2 2021SEC
Q2 2021Aug 16, 2021138$4.37BCRLITRIMMSIvs. Q1 2021SEC
Q1 2021May 17, 2021137$4.49BCRLMMSIDY–SEC

13D and 13G filings

Companies where Aristotle Capital Boston, LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Aristotle Capital Boston, LLC does not currently report owning 5% or more of any company.

Latest filings

23 filings on file made by Aristotle Capital Boston, LLC or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Aristotle Capital Boston, LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
FLWS1 800 Flowers Com IncFeb 14, 20259:00 AM ET13G/A4.63%1.69M shares–Below 5%Dec 31, 2024SEC
ASCArdmore Shipping CorpFeb 14, 202413G/AOld format–––SEC
FLWS1 800 Flowers Com IncFeb 14, 202413G/AOld format–––SEC
CalAmp Corp.Oct 10, 202313G/AOld format–––SEC
USXUS Xpress Enterprises IncFeb 14, 202313G/AOld format–––SEC
FLWS1 800 Flowers Com IncFeb 14, 202313GOld format–––SEC
CalAmp Corp.Feb 14, 202313G/AOld format–––SEC
ASCArdmore Shipping CorpFeb 14, 202313G/AOld format–––SEC
USXUS Xpress Enterprises IncFeb 14, 202213G/AOld format–––SEC
NBHCNational Bank Holdings CorpFeb 14, 202213G/AOld format–––SEC
CCRNCross Country Healthcare IncFeb 14, 202213G/AOld format–––SEC
CalAmp Corp.Feb 14, 202213G/AOld format–––SEC
ASCArdmore Shipping CorpFeb 14, 202213G/AOld format–––SEC
TISITeam IncDec 10, 202113G/AOld format–––SEC
CAI International, Inc.Dec 10, 202113G/AOld format–––SEC
CCRNCross Country Healthcare IncFeb 2, 202113G/AOld format–––SEC
CAI International, Inc.Feb 2, 202113G/AOld format–––SEC
TISITeam IncFeb 2, 202113G/AOld format–––SEC
USXUS Xpress Enterprises IncFeb 2, 202113G/AOld format–––SEC
ASCArdmore Shipping CorpFeb 2, 202113G/AOld format–––SEC