CIK: 0001469475
Total reported value
$6.2B
Reporting period: 2026-03-31 · Number of holdings: 517
Mesirow Financial Investment Management, Inc. disclosed 517 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $6.2B and a quarterly turnover rate of 30.7%.
Browse other institutions with $1B to $10B AUMBrowse other institutions starting with "M"
Mesirow Financial Investment Management, Inc.'s disclosed holdings carry a Herfindahl concentration index of 0.019 — mathematically equivalent to about 54 equally-sized positions, well below its 517 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.93), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 40% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim AKRE
-60.4% -$89.7M
Trim AAPL
-2.5% -$24.4M
Add IJH
+251.3% $100.6M
Add FPAG
+167.7% $97.8M
Add IWR
+268.6% $80.1M
Trim GOOG
+3.7% -$8.5M
Showing top 200 holdings (of 517 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 7.58% | -0.81% | +20.22% | |
| 2 | MOAT | Vaneck Morningstar Wide Moat | ETF-Other | 4.19% | -0.03% | +34.81% | |
| 3 | AAPL | Apple INC | Stock-Tech | 4.01% | -1.57% | -2.48% | |
| 4 | IJR | Ishares Core S&p Small-cap E | ETF-Small Cap | 3.16% | +0.47% | +44.05% | |
| 5 | MSFT | Microsoft CORP | Stock-Tech | 2.74% | -0.14% | +57.69% | |
| 6 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 2.58% | +0.34% | +53.23% | |
| 7 | FPAG | Fpa Global Equity ETF New | ETF-Other | 2.56% | +1.32% | +167.72% | |
| 8 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 2.52% | -0.86% | +3.72% | |
| 9 | ITOT | Ishares Core S&p Total U.s. | ETF-Other | 2.43% | +0.17% | +42.62% | |
| 10 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 2.26% | +1.46% | +251.30% | |
| 11 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 2.01% | +0.17% | +45.70% | |
| 12 | IWR | Ishares Russell Mid-cap ETF | ETF-Other | 1.77% | +1.17% | +268.64% | |
| 13 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.74% | — | +3.32% | |
| 14 | JPM | Jpmorgan Chase & Co | Stock-Financials | 1.49% | — | +5.72% | |
| 15 | GLD | Spdr Gold Shares | ETF-Commodities | 1.41% | +0.09% | +25.23% | |
| 16 | AMZN | Amazon.com INC | Stock-Consumer Disc | 1.38% | — | +18.38% | |
| 17 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 1.37% | — | +12.48% | |
| 18 | VYM | Vanguard High Dvd Yield ETF | ETF-Other | 1.32% | +0.15% | +39.42% | |
| 19 | IWF | Ishares Russell 1000 Growth | ETF-Other | 1.22% | -0.06% | +34.31% | |
| 20 | VXUS | Vanguard Total Intl Stock | ETF-Other | 1.21% | +0.23% | +53.08% | |
| 21 | EFA | Ishares Msci Eafe ETF | ETF-Other | 1.14% | +0.56% | +146.53% | |
| 22 | SGOV | Ishares 0-3 Month Treasury B | ETF-Gov Bonds | 1.13% | +0.17% | +48.23% | |
| 23 | CAT | Caterpillar INC | Stock-Industrials | 1.03% | -0.04% | -1.29% | |
| 24 | RTX | Rtx CORP | Stock-Industrials | 0.90% | — | +4.98% | |
| 25 | TCAF | T Rowe Prc Cap Appreciation | ETF-Other | 0.88% | +0.17% | +68.89% | |
| 26 | SHY | Ishares 1-3 Year Treasury Bo | ETF-Gov Bonds | 0.86% | +0.56% | +260.21% | |
| 27 | AVGO | Broadcom INC | Stock-Tech | 0.80% | — | +10.19% | |
| 28 | FDX | Fedex CORP | Stock-Industrials | 0.76% | +0.02% | +5.88% | |
| 29 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 0.72% | — | +7.06% | |
| 30 | IWD | Ishares Russell 1000 Value E | ETF-Other | 0.72% | — | +23.60% | |
| 31 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.70% | — | +0.06% | |
| 32 | FEGE | First Eagle Gl Equity ETF | ETF-Other | 0.70% | +0.19% | +71.40% | |
| 33 | VUG | Vanguard Growth ETF | ETF-Other | 0.70% | +0.01% | +43.56% | |
| 34 | NVDA | Nvidia CORP | Stock-Tech | 0.69% | +0.32% | +151.37% | |
| 35 | VEA | Vanguard Ftse Developed ETF | ETF-Other | 0.69% | +0.11% | +47.51% | |
| 36 | VIG | Vanguard Dividend Apprec ETF | ETF-Other | 0.69% | +0.11% | +54.13% | |
| 37 | AKRE | Akre Focus ETF | ETF-Other | 0.68% | -2.03% | -60.38% | |
| 38 | CVX | Chevron CORP | Stock-Energy | 0.67% | +0.05% | +0.51% | |
| 39 | IVE | Ishares S&p 500 Value ETF | ETF-Large Cap & Growth | 0.66% | +0.26% | +110.80% | |
| 40 | VTV | Vanguard Value ETF | ETF-Other | 0.66% | +0.05% | +33.22% | |
| 41 | BAC | Bank Of America CORP | Stock-Financials | 0.65% | — | +7.71% | |
| 42 | IEFA | Ishares Core Msci Eafe ETF | ETF-Other | 0.64% | +0.09% | +47.54% | |
| 43 | LOW | Lowe's Cos INC | Stock-Consumer Disc | 0.64% | — | +1.56% | |
| 44 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 0.60% | +0.23% | +118.90% | |
| 45 | AOR | Ishares Core 60/40 Balanced | ETF-Other | 0.59% | — | +16.50% | |
| 46 | IWP | Ishares Russell Mid-cap Grow | ETF-Other | 0.58% | +0.33% | +211.39% | |
| 47 | ABBV | Abbvie INC | Stock-Healthcare | 0.56% | — | +5.33% | |
| 48 | ORCL | Oracle CORP | Stock-Tech | 0.55% | +0.13% | +122.41% | |
| 49 | UNP | Union Pacific CORP | Stock-Industrials | 0.53% | — | +5.15% | |
| 50 | TEL | TE Connectivity plc | Stock-Tech | 0.51% | — | -0.18% |
Performance for Q3 2026
+2.2%
Performance Last 4 Quarters
+23%
Based on 67% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 517 | $6.2B | 31 | |
| 2025-12-31 | 485 | $4.9B | 23 | |
| 2025-09-30 | 554 | $5.6B | 23 | |
| 2025-06-30 | 536 | $5.1B | 0 | |
| 2025-03-31 | 593 | $5.2B | 100 | |
| 2024-12-31 | 596 | $5.0B | 0 | |
| 2024-09-30 | 646 | $5.2B | 0 | |
| 2024-06-30 | 508 | $4.4B | 0 | |
| 2024-03-31 | 525 | $4.4B | 0 | |
| 2023-12-31 | 565 | $2.7B | 0 | |
| 2023-09-30 | 81 | $23.0M | 0 | |
| 2023-06-30 | 79 | $23.6M | 0 | |
| 2023-03-31 | 73 | $24.1M | 0 | |
| 2022-12-31 | 77 | $23.8M | 0 | |
| 2022-09-30 | 71 | $21.0M | 0 | |
| 2022-06-30 | 69 | $20.7M | 0 | |
| 2022-03-31 | 80 | $29.7M | 0 | |
| 2021-12-31 | 77 | $34.7M | 0 | |
| 2021-09-30 | 78 | $34.0M | 0 | |
| 2021-06-30 | 85 | $39.1M | 97 | |
| 2021-03-31 | 135 | $36.8M | 31 | |
| 2020-12-31 | 126 | $31.6M | 37 | |
| 2020-09-30 | 70 | $23.3M | 41 | |
| 2020-06-30 | 70 | $21.2M | 67 | |
| 2020-03-31 | 68 | $15.9M | 91 | |
| 2019-12-31 | 62 | $23.7M | 53 | |
| 2019-09-30 | 59 | $23.8M | 42 | |
| 2019-06-30 | 52 | $27.4M | 51 | |
| 2019-03-31 | 60 | $25.2M | 73 | |
| 2018-12-31 | 58 | $15.5M | 49 | |
| 2018-09-30 | 54 | $19.4M | 44 | |
| 2018-06-30 | 56 | $22.5M | 52 | |
| 2018-03-31 | 58 | $23.7M | 40 | |
| 2017-12-31 | 55 | $22.1M | 35 | |
| 2017-09-30 | 55 | $21.2M | 57 | |
| 2017-06-30 | 54 | $21.2M | 0 |
Mesirow Financial Investment Management, Inc.'s most significant position changes for 2026-03-31: Trim: Akre Focus ETF (AKRE) — shares -60.38%; Trim: Apple INC (AAPL) — shares -2.48%; Add: Ishares Core S&p Midcap ETF (IJH) — shares +251.30%; Add: Fpa Global Equity ETF New (FPAG) — shares +167.72%; Add: Ishares Russell Mid-cap ETF (IWR) — shares +268.64%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | IJH | Ishares Core S&p Midcap ETF | +1.5% | +251.30% | Add |
| 2 | FPAG | Fpa Global Equity ETF New | +1.3% | +167.72% | Add |
| 3 | IWR | Ishares Russell Mid-cap ETF | +1.2% | +268.64% | Add |
| 4 | EFA | Ishares Msci Eafe ETF | +0.6% | +146.53% | Add |
| 5 | SHY | Ishares 1-3 Year Treasury Bo | +0.6% | +260.21% | Add |
| 6 | IJR | Ishares Core S&p Small-cap E | +0.5% | +44.05% | Add |
| 7 | IVV | Ishares Core S&p 500 ETF | +0.3% | +53.23% | Add |
| 8 | IWP | Ishares Russell Mid-cap Grow | +0.3% | +211.39% | Add |
| 9 | NVDA | Nvidia CORP | +0.3% | +151.37% | Add |
| 10 | IVE | Ishares S&p 500 Value ETF | +0.3% | +110.80% | Add |
| 11 | VXUS | Vanguard Total Intl Stock | +0.2% | +53.08% | Add |
| 12 | QQQ | Invesco Qqq Trust Series 1 | +0.2% | +118.90% | Add |
| 13 | PEP | Pepsico INC | +0.2% | +121.55% | Add |
| 14 | VCSH | Vanguard S/t CORP Bond ETF | +0.2% | +132.09% | Add |
| 15 | FEGE | First Eagle Gl Equity ETF | +0.2% | +71.40% | Add |
| 16 | RSP | Invesco S&p 500 Equal Weight | +0.2% | +675.27% | Add |
| 17 | ITOT | Ishares Core S&p Total U.s. | +0.2% | +42.62% | Add |
| 18 | VOO | Vanguard S&p 500 ETF | +0.2% | +45.70% | Add |
| 19 | SGOV | Ishares 0-3 Month Treasury B | +0.2% | +48.23% | Add |
| 20 | TCAF | T Rowe Prc Cap Appreciation | +0.2% | +68.89% | Add |
| 21 | VYM | Vanguard High Dvd Yield ETF | +0.2% | +39.42% | Add |
| 22 | ORCL | Oracle CORP | +0.1% | +122.41% | Add |
| 23 | IBDR | Ishares Ibonds Dec 2026 Term | +0.1% | +98.13% | Add |
| 24 | VOOV | Vanguard S&p 500 Value ETF | +0.1% | +142.10% | Add |
| 25 | PFE | Pfizer INC | +0.1% | +157.88% | Add |
| 26 | NTRS | Northern Trust CORP | +0.1% | +157.41% | Add |
| 27 | DIVO | Amplify Cwp Enhan Divid ETF | +0.1% | +181.00% | Add |
| 28 | VEA | Vanguard Ftse Developed ETF | +0.1% | +47.51% | Add |
| 29 | VIG | Vanguard Dividend Apprec ETF | +0.1% | +54.13% | Add |
| 30 | PM | Philip Morris International | +0.1% | +99.07% | Add |
| 31 | NKE | Nike INC -cl B | +0.1% | +165.01% | Add |
| 32 | IBDS | Ishrs Ibnds Dec 27 CORP ETF | +0.1% | +90.23% | Add |
| 33 | GLD | Spdr Gold Shares | +0.1% | +25.23% | Add |
| 34 | IEFA | Ishares Core Msci Eafe ETF | +0.1% | +47.54% | Add |
| 35 | VOE | Vanguard Mid-cap Value ETF | +0.1% | +53.02% | Add |
| 36 | IBDT | Ishares Ibonds Dec 2028 ETF | +0.1% | +100.47% | Add |
| 37 | PG | Procter & Gamble Co/the | +0.1% | +93.27% | Add |
| 38 | CVX | Chevron CORP | +0.1% | +0.51% | Add |
| 39 | VTV | Vanguard Value ETF | +0.1% | +33.22% | Add |
| 40 | FDX | Fedex CORP | 0% | +5.88% | Add |
| 41 | VUG | Vanguard Growth ETF | 0% | +43.56% | Add |
| 42 | IWD | Ishares Russell 1000 Value E | — | +23.60% | Add |
| 43 | MOAT | Vaneck Morningstar Wide Moat | 0% | +34.81% | Add |
| 44 | CAT | Caterpillar INC | 0% | -1.29% | Trim |
| 45 | IWF | Ishares Russell 1000 Growth | -0.1% | +34.31% | Add |
| 46 | MSFT | Microsoft CORP | -0.1% | +57.69% | Add |
| 47 | BRK-B | Berkshire Hathaway Inc-cl B | -0.8% | +20.22% | Add |
| 48 | GOOG | Alphabet Inc-cl C | -0.9% | +3.72% | Add |
| 49 | AAPL | Apple INC | -1.6% | -2.48% | Trim |
| 50 | AKRE | Akre Focus ETF | -2% | -60.38% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-21 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-05 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-12 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-04 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-08 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-07 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-01 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-09 | Amendment | View on EDGAR |
| 2024-06-30 | 2024-07-16 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-25 | Amendment | View on EDGAR |
| 2024-03-31 | 2024-04-19 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-13 | Amendment | View on EDGAR |
| 2023-12-31 | 2024-01-10 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-06 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-17 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-12 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-19 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-26 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-20 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-02 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-10-20 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-07-23 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-14 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-01-14 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-10-13 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-07-22 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-04-09 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-01-09 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-10-30 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-07-12 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-04-09 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-09 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-11 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-17 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-01-16 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-12 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-17 | 13F-HR | View on EDGAR |
Institutions with a similar AUM
CIK 0001273887
Total reported value
$6.2B
144 stks
2020-03-31
Stale — no recent filing
AUM within 0.1% of this institution
CIK 0001550075
Total reported value
$6.2B
1,277 stks
2023-12-31
Stale — no recent filing
AUM within 0.2% of this institution
CIK 0000009015
Total reported value
$6.2B
238 stks
2026-03-31
AUM within 0.3% of this institution
Institutions with overlapping top holdings
CIK 0000012933
Total reported value
$622.0M
398 stks
2022-12-31
Stale — no recent filing
3 of the top 5 holdings overlap, including Apple INC
CIK 0000016972
Total reported value
$3.2B
269 stks
2023-12-31
Stale — no recent filing
3 of the top 5 holdings overlap, including Microsoft CORP
CIK 0000314949
Total reported value
$20.4B
2,801 stks
2026-03-31
3 of the top 5 holdings overlap, including Apple INC