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Super Investors Mesirow Financial Investment Management, Inc.
MF

Mesirow Financial Investment Management, Inc.

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$6.37B
Positions
529
Quarter ended
June 30, 2026
Filed
July 22, 2026

Reported portfolio value by quarter (37 quarters reported)

$6.37B $15.5M
Q2 17 Q2 19 Q2 21 Q2 23 Q2 25 Q2 26

$21.2M in Q2 2017 → $6.37B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
BH Berkshire Hathaway Inc Del 7.7% Added 0.4% 980,399 $491M
Apple Inc 4.6% Added 3.8% 1,011,311 $293M
VE Vaneck ETF Trust 4.3% Trimmed 1.0% 2,647,494 $275M
IT Ishares Tr 3.8% Added 3.2% 1,618,153 $240M
Alphabet Inc 3.1% Added 3.0% 559,493 $198M
IT Ishares Tr 2.9% Added 1.3% 246,977 $185M
IT Ishares Tr 2.8% Added 2.1% 1,076,654 $177M
VI Vanguard Index Fds 2.4% Added 5.5% 219,307 $151M
Alphabet Inc 2.1% Trimmed 1.3% 367,716 $131M
Microsoft Corp 1.8% Trimmed 31% 314,298 $117M
Jpmorgan Chase & Co 1.6% Added 0.8% 314,532 $103M
SS State Str SPDR S&P 500 ETF T 1.5% Added 1.0% 131,037 $97.9M
Amazon Com Inc 1.5% Added 0.6% 410,159 $97.8M
IT Ishares Tr 1.5% Trimmed 40% 1,239,853 $95.6M
Caterpillar Inc 1.5% Trimmed 0.7% 89,291 $95.1M
VS Vanguard Star Fds 1.5% Added 13% 1,099,337 $94M
IT Ishares Tr 1.4% Added 299% 705,467 $87.6M
VW Vanguard Whitehall Fds 1.4% Added 0.3% 554,044 $87.6M
IM Investment Managers Ser Tr I 1.4% Trimmed 51% 2,143,769 $86.1M
IT Ishares Tr 1.2% Added 13% 779,029 $78.4M
SG SPDR Gold Tr 1.1% Trimmed 3.4% 195,884 $72.2M
PM Profesionally Managed Portfo 1.1% Added 69% 1,347,351 $71.7M
TR T Rowe Price Exchange-traded 1.0% Added 3.2% 1,577,702 $64.8M
IT Ishares Tr 1.0% Trimmed 51% 553,000 $61M
Broadcom Inc 0.9% Trimmed 5.8% 150,683 $56.9M
Rtx Corporation 0.9% Added 0.4% 290,172 $55.1M
VI Vanguard Index Fds 0.8% Added 533% 622,377 $53.6M
RF Rbb Fund Trust 0.8% Added 16% 1,064,859 $52.1M
IT Ishares Tr 0.7% Trimmed 5.2% 196,514 $47.6M
VT Vanguard Tax-managed Fds 0.7% Trimmed 0.1% 663,218 $47.3M
VS Vanguard Specialized Funds 0.7% Added 0.3% 197,505 $46.7M
BO Bank Of Amer Corp 0.7% Trimmed 1.0% 813,986 $46.4M
VI Vanguard Index Fds 0.7% Added 1.7% 211,587 $46.1M
Thermo Fisher Scientific Inc 0.7% Added 1.6% 91,809 $46M
IT Ishares Tr 0.7% Added 3.2% 453,492 $43.8M
Fedex Corp 0.7% Added 0.3% 132,943 $41.6M
Costco Wholesale Corporation 0.7% Added 2.4% 44,331 $41.5M
Abbvie Inc 0.6% Added 0.3% 158,995 $40M
VW Vanguard World Fd 0.6% Added 9.5% 145,226 $39.7M
IT Ishares Tr 0.6% Added 0.5% 565,749 $39.3M
IT Ishares Tr 0.6% Trimmed 49% 366,884 $38.1M
LC Lowes Cos Inc 0.6% Added 0.8% 169,017 $37.3M
UP Union Pac Corp 0.6% Added 0.2% 134,567 $36.6M
Corning Inc 0.6% Trimmed 0.0% 141,385 $36.1M
Chevron Corporation 0.5% Trimmed 0.7% 199,038 $33M
VI Vanguard Intl Equity Index F 0.5% Added 1.6% 209,158 $32.8M
Linde PLC 0.5% Added 0.1% 61,768 $32.1M
VS Vanguard Scottsdale Fds 0.5% Added 7.3% 404,069 $31.9M
Visa Inc 0.5% Added 1.1% 89,042 $30.6M
Te Connectivity PLC 0.5% Added 0.3% 150,962 $30.4M
Unitedhealth Group Inc 0.5% Trimmed 0.1% 72,504 $30.1M
VI Vanguard Index Fds 0.5% Added 1.2% 149,741 $29.6M
Johnson & Johnson 0.5% Added 0.6% 115,650 $29.4M
VI Vanguard Index Fds 0.5% Added 2.9% 79,090 $29.3M
IT Ishares Tr 0.4% Trimmed 0.1% 95,143 $28.6M
VI Vanguard Index Fds 0.4% Added 319% 353,926 $28.5M
IT Ishares Tr 0.4% Trimmed 48% 335,614 $27.6M
Walmart Inc 0.4% Added 0.3% 235,308 $26.7M
Nvidia Corporation 0.4% Trimmed 46% 132,067 $26.4M
Fifth Third Bancorp 0.4% Trimmed 4.3% 463,195 $26.1M

Showing top 60 of 529 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed July 22, 2026

Company Action Shares changed Value of change % of portfolio
IM Investment Managers Ser Tr I Trimmed −2,219,773 −$89.1M 1.4%
IT Ishares Tr Added +528,711 +$65.7M 1.4%
IT Ishares Tr Trimmed −824,082 −$63.5M 1.5%
IT Ishares Tr Trimmed −573,058 −$63.2M 1.0%
Microsoft Corp Trimmed −142,463 −$53.1M 1.8%
VI Vanguard Index Fds Added +523,994 +$45.1M 0.8%
IT Ishares Tr Trimmed −357,266 −$37.1M 0.6%
PM Profesionally Managed Portfo Added +549,958 +$29.3M 1.1%
IT Ishares Tr Trimmed −305,956 −$25.1M 0.4%
Nvidia Corporation Trimmed −112,201 −$22.5M 0.4%

Showing the 10 largest of 500 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 21, 2026

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Added +1,476,421 +$99.7M 2.3%
IM Investment Managers Ser Tr I Added +2,733,666 +$99.2M 2.6%
IT Ishares Tr Added +820,594 +$79.8M 1.8%
BH Berkshire Hathaway Inc Del Added +164,260 +$78.7M 7.6%
VE Vaneck ETF Trust Added +690,768 +$66.8M 4.2%
PM Profesionally Managed Portfo Trimmed −1,215,269 −$64.2M 0.7%
Microsoft Corp Added +167,099 +$61.9M 2.7%
IT Ishares Tr Added +479,564 +$59.6M 3.2%
IT Ishares Tr Added +84,679 +$55.3M 2.6%
IT Ishares Tr Added +315,179 +$44.9M 2.4%

Showing the 10 largest of 500 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 05, 2026

Company Action Shares changed Value of change % of portfolio
PM Profesionally Managed Portfo New +2,012,662 +$132M 2.7%
BH Berkshire Hathaway Inc Del Trimmed −151,467 −$76.1M 8.4%
VE Vaneck ETF Trust Trimmed −642,791 −$66.6M 4.2%
IT Ishares Tr Trimmed −82,920 −$56.8M 2.2%
IT Ishares Tr Trimmed −389,393 −$46.8M 2.7%
IT Ishares Tr Trimmed −283,367 −$42.1M 2.3%
VI Vanguard Index Fds Trimmed −57,072 −$35.8M 1.8%
IT Ishares Tr Trimmed −58,402 −$27.6M 1.3%
IT Ishares Tr Trimmed −242,499 −$23.3M 0.6%
Broadcom Inc Trimmed −66,414 −$23M 1.0%

Showing the 10 largest of 549 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 12, 2025

Company Action Shares changed Value of change % of portfolio
Visa Inc Added +49,290 +$16.8M 0.5%
Pepsico Inc Trimmed −115,861 −$16.3M 0.3%
RF Rbb Fund Trust Added +258,678 +$11.4M 0.4%
TR T Rowe Price ETF Inc Added +298,603 +$11.3M 0.9%
IT Ishares Tr Added +82,173 +$8.27M 0.9%
VW Vanguard World Fd Added +22,445 +$5.48M 0.6%
IT Ishares Tr Added +42,948 +$5.1M 3.1%
BH Berkshire Hathaway Inc Del Added +9,587 +$4.82M 8.7%
IM Investment Managers Ser Tr I Added +126,950 +$4.55M 1.3%
VE Vaneck ETF Trust Trimmed −41,250 −$4.09M 4.7%

Showing the 10 largest of 493 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 04, 2025

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Trimmed −888,129 −$120M 2.7%
IT Ishares Tr Trimmed −572,282 −$52.6M 1.0%
IT Ishares Tr Added +173,093 +$33.6M 0.8%
IT Ishares Tr Trimmed −364,028 −$32.5M 0.6%
IT Ishares Tr Trimmed −469,300 −$29.1M 0.8%
IT Ishares Tr Trimmed −244,281 −$20.2M 0.4%
IT Ishares Tr Trimmed −134,002 −$18.6M 0.4%
IT Ishares Tr Added +170,987 +$17.2M 0.8%
Stryker Corporation Added +43,487 +$17.2M 0.5%
IM Investment Managers Ser Tr I Trimmed −484,907 −$16.5M 1.2%

Showing the 10 largest of 580 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 08, 2025

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Added +897,109 +$109M 4.5%
VE Vaneck ETF Trust Trimmed −753,614 −$66.3M 4.7%
IT Ishares Tr Added +569,914 +$48.5M 1.8%
IT Ishares Tr Added +660,514 +$38.5M 1.3%
IT Ishares Tr Trimmed −175,985 −$33.1M 0.1%
UP Union Pac Corp Trimmed −136,056 −$32.1M 0.6%
IT Ishares Tr Added +354,404 +$29M 1.1%
IT Ishares Tr Added +261,599 +$21.6M 0.8%
IM Investment Managers Ser Tr I Added +685,919 +$20.6M 1.4%
IT Ishares Tr Added +144,035 +$16.9M 0.6%

Showing the 10 largest of 530 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 07, 2025

Company Action Shares changed Value of change % of portfolio
VE Vaneck ETF Trust Added +858,400 +$79.6M 6.4%
VW Vanguard Whitehall Fds Trimmed −534,945 −$68.3M 1.4%
VS Vanguard Star Fds Trimmed −666,887 −$39.3M 0.9%
VS Vanguard Specialized Funds Trimmed −169,401 −$33.2M 0.7%
UP Union Pac Corp Added +131,118 +$29.9M 1.2%
VS Vanguard Scottsdale Fds Trimmed −314,298 −$24.5M 0.5%
Blackrock Inc New +22,041 +$22.6M 0.4%
VI Vanguard Index Fds Trimmed −83,425 −$22M 0.4%
Walmart Inc Trimmed −241,254 −$21.8M 0.4%
VT Vanguard Tax-managed Fds Trimmed −433,384 −$20.7M 0.8%

Showing the 10 largest of 569 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 01, 2024

Company Action Shares changed Value of change % of portfolio
VW Vanguard Whitehall Fds Added +552,003 +$70.8M 2.7%
VS Vanguard Star Fds Added +746,840 +$48.4M 1.8%
Broadcom Inc Added +219,584 +$37.9M 0.8%
VS Vanguard Specialized Funds Added +179,441 +$35.5M 1.3%
VT Vanguard Tax-managed Fds Added +641,090 +$33.9M 1.3%
VS Vanguard Scottsdale Fds Added +338,692 +$26.9M 1.0%
Te Connectivity PLC New +159,036 +$24M 0.5%
Te Connectivity Ltd Exited −159,140 −$23.9M —
VI Vanguard Index Fds Added +138,920 +$23.3M 0.8%
VI Vanguard Index Fds Added +83,016 +$21.9M 0.8%

Showing the 10 largest of 552 changes.

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