Aristotle Capital Boston, LLC

In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 14, 2026), Aristotle Capital Boston, LLC reported 119 stock positions worth $1.5 billion. Its top holding was Macom Technology Solutions H (MTSI) at 2.6% of the portfolio, followed by Ha Sustainable Infrastructur (HASI, 2.2%) and Littelfuse (LFUS, 2.2%). Compared with Q1 2026, it opened 2 new positions, sold out of 5, added to 6 and reduced 111. The biggest buy was a new position in Umb Financial (UMBF) and the biggest sale Advanced Energy Industries (AEIS, shares −66%).

Most Recent 13F
Q2 2026
Location
BOSTON, MA
CIK
0001633911
Portfolio Value
$1.5B (Q2 2026)
SEC Filing
0001398344-26-014480 ↗ filed Aug 14, 2026

Holdings Value

0$1.0B$2.0B$3.0B$4.0B Q1 2024: $3.3B Q1 2024 Q2 2024: $3.0B Q2 2024 Q3 2024: $3.0B Q3 2024 Q4 2024: $2.7B Q4 2024 Q1 2025: $2.0B Q1 2025 Q2 2025: $2.0B Q2 2025 Q3 2025: $1.9B Q3 2025 Q4 2025: $1.8B Q4 2025 Q1 2026: $1.6B Q1 2026 Q2 2026: $1.5B $1.5B Q2 2026

Holdings 119 stocks · $1.5B
MTSI Macom Technology Solutions H 2.62% 102,830 $39.1M Reduce -50.1%
HASI Ha Sustainable Infrastructur 2.22% 847,819 $33.1M Reduce -17.4%
LFUS Littelfuse Inc. 2.20% 71,912 $32.7M Reduce -17.3%
AER Aercap Holdings NV 2.02% 206,417 $30.1M Reduce -17.9%
HQY Healthequity Inc. 2.02% 332,884 $30.1M Reduce -16.2%
MRCY Mercury Systems Inc. 2.00% 244,228 $29.9M Reduce -8.3%
ACIW Aci Worldwide Inc. 1.86% 551,926 $27.8M Reduce -16.5%
UMBF Umb Financial Corp. 1.74% 181,329 $25.9M New
ITRI Itron Inc. 1.56% 268,429 $23.2M Reduce -8.3%
NOVT Novanta Inc. 1.51% 139,009 $22.6M Reduce -16.2%
BHE Benchmark Electronics Inc. 1.48% 224,142 $22.1M Reduce -15.6%
MMSI Merit Medical Systems Inc. 1.47% 316,536 $21.9M Reduce -16.2%
PRSU Pursuit Attractions and Hosp 1.46% 389,455 $21.8M Reduce -14.8%
HAE Haemonetics Corp. 1.46% 289,624 $21.7M Reduce -16.4%
NBHC National Bank Hold Class A 1.45% 485,740 $21.6M Reduce -16.4%
SMG Scotts Miracle-Gro Co. 1.43% 312,242 $21.3M Reduce -16.6%
SLGN Silgan Holdings Inc. 1.41% 451,934 $21.0M Reduce -15.8%
HXL Hexcel Corp. 1.41% 209,350 $20.9M Reduce -16.6%
CHE Chemed Corp. 1.38% 44,114 $20.5M Reduce -16.5%
HURN Huron Consulting Group Inc. 1.32% 217,531 $19.6M Reduce -13.0%
AUB Atlantic Union Bankshares Co. 1.29% 454,584 $19.2M Reduce -16.1%
CUBI Customers Bancorp Inc. 1.29% 242,607 $19.2M Reduce -14.7%
AGI Alamos Gold Inc. Class A 1.28% 628,545 $19.1M Reduce -17.2%
BDC Belden Inc. 1.28% 158,757 $19.0M Reduce -16.9%
AEIS Advanced Energy Industries 1.27% 50,851 $19.0M Reduce -66.4%
JHX James Hardie Ind PLC 1.25% 709,085 $18.6M Reduce -16.3%
VOYA Voya Financial Inc. 1.24% 204,227 $18.5M Reduce -16.4%
PWP Perella Weinberg Partners 1.23% 1,152,220 $18.4M Reduce -6.6%
STAG Stag Industrial Inc. 1.23% 482,616 $18.4M Reduce -16.5%
KNX Knight-Swift Transportation 1.23% 235,588 $18.3M Reduce -17.5%
CRL Charles River Laboratories 1.23% 80,574 $18.3M Reduce -17.3%
VVV Valvoline Inc. 1.21% 457,955 $18.1M Reduce -16.6%
TKO Tko Group Holdings Inc. 1.21% 89,647 $18.0M Reduce -16.6%
LQDT Liquidity Services Inc. 1.21% 459,994 $18.0M Reduce -14.7%
CWST Casella Waste Systems Inc. Class A 1.19% 183,143 $17.8M Reduce -6.5%
GRDN Guardian Phrmcy Services-A 1.19% 422,427 $17.7M Reduce -14.8%
WSBC Wesbanco Inc. 1.14% 435,329 $17.0M Add +52.4%
AIN Albany Intl Corp. Class A 1.10% 220,403 $16.4M Reduce -16.7%
BKU Bankunited Inc. 1.09% 334,868 $16.2M Reduce -17.8%
BOX Box Inc. Class A 1.08% 606,056 $16.1M Reduce -12.9%
BWIN Baldwin Insurance Group Inc./ filed as THE BALDWIN INSURANCE GRP IN 1.01% 568,427 $15.1M Reduce -16.7%
EEFT Euronet Worldwide Inc. 1.01% 204,955 $15.0M Reduce -17.1%
ATR Aptargroup Inc. 0.98% 116,953 $14.6M Reduce -10.4%
IPAR Interparfums Inc. 0.94% 125,110 $14.0M Reduce -16.8%
KBH KB Home 0.93% 221,351 $13.9M Reduce -16.5%
DY Dycom Industries Inc. 0.93% 27,361 $13.8M Reduce -17.1%
HGV Hilton Grand Vacations Inc. 0.91% 258,847 $13.6M Reduce -12.1%
COLB Columbia Banking System Inc. 0.90% 420,721 $13.5M Reduce -16.6%
FIBK First Interstate Bancsys-A 0.90% 348,476 $13.4M Reduce -16.7%
CNS Cohen & Steers Inc. 0.88% 173,262 $13.2M Reduce -9.4%
KBR KBR Inc. 0.88% 381,717 $13.2M Reduce -10.1%
UTL Unitil Corp. 0.88% 247,621 $13.0M Reduce -5.0%
ACHC Acadia Healthcare Co. Inc. 0.86% 435,076 $12.8M Reduce -16.6%
ROG Rogers Corp. 0.84% 76,471 $12.5M Reduce -16.0%
ASC Ardmore Shipping Corp. 0.83% 887,479 $12.4M Reduce -5.5%
WSC Willscot Holdings Corp. 0.82% 425,948 $12.3M Reduce -16.1%
WWW Wolverine World Wide Inc. 0.82% 742,945 $12.3M Reduce -16.4%
GXO Gxo Logistics Inc. 0.82% 240,204 $12.2M Reduce -16.3%
ADC Agree Realty Corp. 0.80% 158,400 $12.0M Reduce -17.2%
RRC Range Resources Corp. 0.80% 321,864 $12.0M Reduce -10.2%
UCB United Community Banks 0.80% 340,716 $12.0M Reduce -16.5%
MATW Matthews Intl Corp. Class A 0.80% 442,732 $11.9M Reduce -14.8%
ONB Old National Bancorp 0.75% 430,408 $11.1M Reduce -16.7%
AXTA Axalta Coating Systems Ltd. 0.74% 322,430 $11.0M Reduce -16.4%
LKQ LKQ Corp. 0.71% 402,470 $10.6M Reduce -17.0%
NSIT Insight Enterprises Inc. 0.71% 86,915 $10.6M Reduce -15.7%
BANR Banner Corporation 0.70% 157,394 $10.5M Reduce -16.5%
TCBI Texas Capital Bancshares Inc. 0.69% 99,558 $10.3M Reduce -16.4%
IPGP Ipg Photonics Corp. 0.68% 86,002 $10.1M Add +456.1%
PBH Prestige Consumer Healthcare 0.67% 212,470 $10.0M Reduce -16.1%
FCN Fti Consulting Inc. 0.67% 66,991 $10.0M Reduce -4.6%
OII Oceaneering Intl Inc. 0.67% 245,180 $9.9M Reduce -9.7%
IJR iShares Core S&P Small-Cap E 0.67% 66,854 $9.9M Add +10.4%
PRMB Primo Brands Corp. 0.63% 383,221 $9.4M Reduce -5.5%
IDA Idacorp Inc. 0.61% 60,429 $9.1M Reduce -17.2%
DLB Dolby Laboratories Inc. Class A 0.58% 165,832 $8.7M Reduce -1.3%
SONO Sonos Inc. 0.57% 625,188 $8.5M Reduce -15.6%
NVST Envista Holdings Corp. 0.56% 317,799 $8.4M Reduce -2.2%
MD Pediatrix Medical Group Inc. 0.54% 318,184 $8.1M Reduce -17.9%
KN Knowles Corp. 0.53% 191,737 $8.0M Reduce -80.9%
INSW International Seaways Inc. 0.53% 103,734 $7.9M Reduce -4.8%
IWM iShares Russell 2000 ETF 0.53% 26,411 $7.9M Add +23.6%
SUPN Supernus Pharmaceuticals Inc. 0.53% 169,686 $7.9M Reduce -16.4%
SLRC SLR Investment Corp. 0.51% 613,753 $7.6M Reduce -18.7%
HLF Herbalife Ltd. 0.50% 567,829 $7.5M Reduce -16.7%
IWN iShares Russell 2000 Value E 0.49% 32,804 $7.3M Add +20.8%
OGS One Gas Inc. 0.48% 92,979 $7.2M Reduce -5.2%
FLS Flowserve Corp. 0.45% 90,046 $6.7M Reduce -12.8%
CHCT Community Healthcare Trust I 0.43% 350,431 $6.4M Reduce -17.7%
AMTM Amentum Holdings Inc. 0.43% 307,836 $6.4M Reduce -10.8%
JJSF J & J Snack Foods Corp. 0.42% 85,544 $6.3M Reduce -17.2%
QDEL Quidelortho Corp. 0.41% 350,145 $6.1M Reduce -16.7%
CCRN Cross Country Healthcare Inc. 0.40% 447,442 $5.9M Reduce -15.4%
EFOR Everforth Inc. 0.39% 325,014 $5.8M Reduce -7.0%
CHEF The Chefs' Warehouse Inc. 0.36% 55,295 $5.3M Reduce -14.9%
NOG Northern Oil and Gas Inc. 0.33% 274,831 $5.0M Reduce -8.7%
AHRT Ah Realty Trust Inc. 0.33% 694,442 $4.9M Reduce -15.9%
PR Permian Resources Corp. Class A 0.32% 255,827 $4.7M Reduce -24.9%
FTAI Ftai Aviation Ltd. 0.31% 17,178 $4.6M Reduce -24.8%
EHC Encompass Health Corp. 0.27% 39,723 $4.0M Reduce -19.4%

Show all 119 holdings

Portfolio Sells Q1 2026 → Q2 2026
AEIS Advanced Energy Industries Reduce -66.4% 1.27% −1.76
BY Byline Bancorp Inc. Sold out 0.00% −1.32
KN Knowles Corp. Reduce -80.9% 0.53% −1.07
AGI Alamos Gold Inc. Class A Reduce -17.2% 1.28% −0.82
HURN Huron Consulting Group Inc. Reduce -13.0% 1.32% −0.66
VRRM Verra Mobility Corp. Sold out 0.00% −0.58
COLD Americold Realty Trust Inc. Sold out 0.00% −0.45
EFOR Everforth Inc. Reduce -7.0% 0.39% −0.45
PBH Prestige Consumer Healthcare Reduce -16.1% 0.67% −0.26
MTSI Macom Technology Solutions H Reduce -50.1% 2.62% −0.22
NOG Northern Oil and Gas Inc. Reduce -8.7% 0.33% −0.21
RRC Range Resources Corp. Reduce -10.2% 0.80% −0.20
LKQ LKQ Corp. Reduce -17.0% 0.71% −0.17
SLRC SLR Investment Corp. Reduce -18.7% 0.51% −0.16
PWP Perella Weinberg Partners Reduce -6.6% 1.23% −0.16
MMSI Merit Medical Systems Inc. Reduce -16.2% 1.47% −0.15
TKO Tko Group Holdings Inc. Reduce -16.6% 1.21% −0.14
AMTM Amentum Holdings Inc. Reduce -10.8% 0.43% −0.13
PR Permian Resources Corp. Class A Reduce -24.9% 0.32% −0.13
AER Aercap Holdings NV Reduce -17.9% 2.02% −0.13
HLF Herbalife Ltd. Reduce -16.7% 0.50% −0.12
SUPN Supernus Pharmaceuticals Inc. Reduce -16.4% 0.53% −0.12
HASI Ha Sustainable Infrastructur Reduce -17.4% 2.22% −0.12
GXO Gxo Logistics Inc. Reduce -16.3% 0.82% −0.11
FCN Fti Consulting Inc. Reduce -4.6% 0.67% −0.10
ADC Agree Realty Corp. Reduce -17.2% 0.80% −0.09
BDC Belden Inc. Reduce -16.9% 1.28% −0.09
KBR KBR Inc. Reduce -10.1% 0.88% −0.09
JJSF J & J Snack Foods Corp. Reduce -17.2% 0.42% −0.09
WWW Wolverine World Wide Inc. Reduce -16.4% 0.82% −0.08
ITRI Itron Inc. Reduce -8.3% 1.56% −0.07
STAG Stag Industrial Inc. Reduce -16.5% 1.23% −0.06
BJ Bj's Wholesale Club Holdings Reduce -24.4% 0.15% −0.06
BKU Bankunited Inc. Reduce -17.8% 1.09% −0.05
ASC Ardmore Shipping Corp. Reduce -5.5% 0.83% −0.05
SONO Sonos Inc. Reduce -15.6% 0.57% −0.05
SCI Service Corp. International Reduce -23.6% 0.16% −0.05
OGS One Gas Inc. Reduce -5.2% 0.48% −0.04
HQY Healthequity Inc. Reduce -16.2% 2.02% −0.04
DLB Dolby Laboratories Inc. Class A Reduce -1.3% 0.58% −0.04
ATR Aptargroup Inc. Reduce -10.4% 0.98% −0.04
FTAI Ftai Aviation Ltd. Reduce -24.8% 0.31% −0.04
PRGO Perrigo Co. PLC Reduce -17.9% 0.23% −0.04
IDA Idacorp Inc. Reduce -17.2% 0.61% −0.03
MATW Matthews Intl Corp. Class A Reduce -14.8% 0.80% −0.03
J Jacobs Solutions Inc. Reduce -24.6% 0.14% −0.03
TDY Teledyne Technologies Inc. Reduce -24.6% 0.26% −0.03
EHC Encompass Health Corp. Reduce -19.4% 0.27% −0.03
CIEN Ciena Corp. Sold out 0.00% −0.03
FLS Flowserve Corp. Reduce -12.8% 0.45% −0.03

Portfolio Buys Q1 2026 → Q2 2026
UMBF Umb Financial Corp. New 1.74% +1.74
IPGP Ipg Photonics Corp. Add +456.1% 0.68% +0.57
WSBC Wesbanco Inc. Add +52.4% 1.14% +0.53
IWM iShares Russell 2000 ETF Add +23.6% 0.53% +0.20
IJR iShares Core S&P Small-Cap E Add +10.4% 0.67% +0.20
IWN iShares Russell 2000 Value E Add +20.8% 0.49% +0.17
JLL Jones Lang Lasalle Inc. New 0.16% +0.16
IJH iShares Core S&P Midcap ETF Add +6352.2% 0.03% +0.03

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 119$1.5BMTSI, HASI, LFUS, AER, HQY
Q1 2026 122$1.6BAEIS, MTSI, HASI, AER, AGI
Q4 2025 125$1.8BHURN, MTSI, AER, DY, HQY
Q3 2025 127$1.9BHURN, ACIW, DY, HQY, MTSI
Q2 2025 127$2.0BDY, ITRI, HURN, AER, MTSI
Q1 2025 125$2.0BHURN, AER, ACIW, MMSI, ITRI
Q4 2024 127$2.7BHURN, MTSI, MMSI, AER, ITRI
Q3 2024 127$3.0BMMSI, AER, DY, HURN, ITRI
Q2 2024 126$3.0BAER, MMSI, HURN, ITRI, MTSI
Q1 2024 128$3.3BAER, ITRI, ACHC, DY, HURN