Chicago Capital Management
Chicago Capital Management reported 10 stocks worth $27.1M in its 13F filing for Q3 2026, filed Oct 21, 2026. Its largest holdings are Atkore Inc (34.8%), ITGR (20.4%) and Hewlett Packard Enterprise C (19.9%). Compared with Q2 2026, the fund opened new positions in ITGR and HZO and sold out of TECH.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 | ATKORE INC | $9.4M | 34.8% | 130K | New position | 1 of 8 | |
| 2 |  ITGR Integer Hldgs Corp | $5.5M | 20.4% | 57K | New position | 1 of 8 | |
| 3 | HEWLETT PACKARD ENTERPRISE C | $5.4M | 19.9% | 33K | No change | 7 of 8 | |
| 4 |  HZO Marinemax Inc | $4.2M | 15.7% | 106K | New position | 1 of 8 | |
| 5 | SHIFT4 PMTS INC | $1.2M | 4.6% | 25K | New position | 1 of 8 | |
| 6 | SOUTHERN CO | $452K | 1.7% | 10K | New position | 1 of 8 | |
| 7 | NSTS BANCORP INC | $315K | 1.2% | 29K | No change | 2 of 8 | |
| 8 | ACV AUCTIONS INC | $264K | 1.0% | 33K | New position | 1 of 8 | |
| 9 | BIOLIFE SOLUTIONS INC | $223K | 0.8% | 7,524 | New position | 1 of 8 | |
| 10 |  XRXDW Xerox Holdings Corp | $26K | 0.1% | 96K | No change | 2 of 8 |
Positions at Sep 30, 2026, as reported. Change is against the fund's Q2 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q2 2026, gone in Q3 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
NUVALENT INC | $11.1M | 116K |
APOGEE THERAPEUTICS INC | $9.8M | 97K |
CHART INDS INC | $8.4M | 53K |
TAYLOR MORRISON HOME CORP | $7.2M | 133K |
CATALYST PHARMACEUTICALS INC | $2.9M | 123K |
🔒 Free account: see all 11.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q3 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Oct 21, 2026 | 13F-HR | Q3 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Chicago Capital Management 13F FAQ
What does Chicago Capital Management own?
Chicago Capital Management reported 10 stocks worth $27.1M in its 13F filing for Q3 2026, filed Oct 21, 2026. Its largest holdings are Atkore Inc (34.8%), ITGR (20.4%) and Hewlett Packard Enterprise C (19.9%). The table above lists every position in the filing (the top 10 without an account).
What did Chicago Capital Management buy and sell in Q3 2026?
Compared with Q2 2026: 7 new positions, 0 added to, 0 trimmed and 11 sold out. New positions include ITGR and HZO. It sold all of TECH.
When will Chicago Capital Management file its next 13F?
Holdings as of Dec 31, 2026 are due by Feb 15, 2027. The filing appears on this page within minutes of reaching the SEC.
How much is Chicago Capital Management's portfolio worth?
The Q3 2026 filing reports $27.1M in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.