Chicago Capital Management, LLC
Sector Allocation
- Technology32.7%$36.1M
- Other18.9%$20.8M
- Healthcare14.7%$16.2M
- Industrials9.8%$10.8M
- Consumer Discretionary7.4%$8.2M
- Materials6.4%$7.0M
- Consumer Staples5.4%$5.9M
- Financials4.4%$4.9M
- Utilities0.4%$451,874
AUM History
13fpro.ai/research/fund/chicago-capital-management-llc-1580162
Conviction and streaks
Diversifying · top 10 = 61.4%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q3 2026
ATKR
$9.4MRPD
$8.3MLAR
$7.0M- THE$7.0M
VERI
$6.9MENOV
$6.3MMGPI
$5.9MPAR
$5.9MITGR
$5.5M- HEWLETT$5.4M
WGO
$5.3M- AMPHASTAR$5.1M
EEFT
$4.5MHZO
$4.2MSRPT
$4.1MSHAK
$4.0METSY
$3.9M- $3.6M
- PAR$3.3M
XRX
$2.0M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/chicago-capital-management-llc-1580162
Chicago Capital Management, LLC 13F holdings — Q3 2026
$110.4M portfolio (-1.7% QoQ) · 26 holdings · Q3 2026 13F · top 10 are 61% of the stock portfolio
$9.4M
8.5% of stocks
NewThis quarter—Since filedNew this quarterHeld$8.3M
7.5% of stocks
+31%This quarter+32.7%Since filed3 qtrsHeldAIQuality47.5#1,793Est. buyEstimated buy price is Pro: unlock with a free trialAdded 3 qtrs in a row$7.0M
6.4% of stocks
NewThis quarter-6.7%Since filedNew this quarterHeld- 4
THE REALREAL INC - NOTE 1.000% 3/0
$7.0M
6.3% of stocks
+42%This quarter—Since filed—HeldAIQuality—Est. buy— $6.9M
6.3% of stocks
+27%This quarter-0.1%Since filed4 qtrsHeldAIQuality10.3#2,872Est. buyEstimated buy price is Pro: unlock with a free trialAdded 4 qtrs in a row$6.3M
5.7% of stocks
NewThis quarter+1.7%Since filedNew this quarterHeld$5.9M
5.4% of stocks
+0.0%This quarter+4.3%Since filed5 qtrsHeld$5.9M
5.3% of stocks
+444%This quarter-1.5%Since filed3 qtrsHeld$5.5M
5.0% of stocks
NewThis quarter-0.1%Since filedNew this quarterHeld- 10
HEWLETT PACKARD ENTERPRISE C - 7.625 MAND CONV
$5.4M
4.9% of stocks
No changeThis quarter—Since filed—HeldAIQuality—Est. buy—
All holdings — Chicago Capital Management, LLC (Q3 2026)
26 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | WINNEBAGO INDUSTRIES INCnote | Industrials | $5.3M | 4.8% | 5,950 | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | — | AMPHASTAR PHARMACEUTICALS IN - NOTE 2.000% 3/1note | — | $5.1M | 4.7% | 5,500 | +1% | — | — | 13F |
| 13 | EURONET WORLDWIDE, INC.note | Financials | $4.5M | 4.1% | 5,124 | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | MARINEMAX INC | Consumer Discretionary | $4.2M | 3.8% | 106K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | Sarepta Therapeutics, Inc.note | Healthcare | $4.1M | 3.7% | 4,265 | +35% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | Shake Shack Inc.note | Consumer Discretionary | $4.0M | 3.6% | 4,193 | +0.1% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | ETSY INCnote | Industrials | $3.9M | 3.6% | 4,292 | — | 7 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | Rapid7, Inc.note | Technology | $3.6M | 3.2% | 4,010 | New | 3 qtrsAdded 3 qtrs in a row | 47.5 | 13F | |
| 19 | — | PAR TECHNOLOGY CORP - NOTE 1.000% 1/1note | — | $3.3M | 3.0% | 4,000 | New | — | — | 13F |
| 20 | Xerox Holdings Corpnote | Technology | $2.0M | 1.8% | 5,000 | +25% | 7 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | Shift4 Payments, Inc. | Industrials | $1.2M | 1.1% | 25K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | SOUTHERN COlp unit | Utilities | $452K | 0.4% | 10K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | NSTS Bancorp, Inc. | Financials | $315K | 0.3% | 29K | — | 2 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | ACV Auctions Inc. | Industrials | $264K | 0.2% | 33K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | BIOLIFE SOLUTIONS INC | Healthcare | $223K | 0.2% | 7,524 | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $XRX | Xerox Holdings Corp | Technology | $26K | 0.0% | 96K | — |
What changed in Q3 2026
Against the previous quarter's 13F: 12 new, 9 added to, 0 trimmed, 14 sold out. Share-count changes; largest moves by dollar size first.
New positions (12)
first bought this quarter
first bought this quarter
first bought this quarter
first bought this quarter
first bought this quarter
first bought this quarter
+6 more in the Excel export
Added to (9)
now $5.9M · held 3 qtrs
- THE REALREAL INC - NOTE 1.000% 3/0+42%
now $7.0M
now $8.3M · held 3 qtrs, 3 adds in a row
now $6.9M · held 4 qtrs, 4 adds in a row
now $4.1M · held 2 qtrs, 2 adds in a row
now $2.0M · held 7 qtrs, 2 adds in a row
+3 more in the Excel export
Trimmed (0)
No positions trimmed this quarter.
Holdings by quarter
Every 13F Chicago Capital Management, LLC has filed, 42 earlier quarters. Pick one to see what it held then.
Is it too late to follow Chicago Capital Management?
Q3 2026 13F filed with the SEC on Oct 21, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of Chicago Capital Management's top 20 holdings: 41/100 (our AI quality score, weighted by position size; 19 of the 20 are scored)
Top 10 since filing
+6.8%
Value-weighted move of the 10 largest stock positions
Turnover
57%
Last quarter; 180% over the last 4
Top 10 weight
61%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
25%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q2 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
Chicago Capital Management, LLC disclosed 26 positions worth $110.4M in its Form 13F-HR for Q3 2026, led by $ATKR (Atkore Inc.) at 8.5% of the equity portfolio, followed by $RPD and $LAR. During the quarter the fund opened 12 new positions and exited 14 — including a new stake in $ATKR and a full exit from $NUVL. The portfolio is most concentrated in Technology (32.7% of disclosed assets). All figures are sourced directly from Chicago Capital Management, LLC’s Form 13F-HR filing with the SEC under CIK 1580162.
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AI-Powered Hedge Fund Analysis: Chicago Capital Management, LLC
13F Pro is an AI hedge fund tracker and stock research platform. For Chicago Capital Management, LLC (SEC CIK: 1580162), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in Chicago Capital Management, LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.