Chicago Capital Management, LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 27, 2026), Chicago Capital Management, LLC reported 12 stock positions worth $47.3 million. Its top holding was Chart Industries (GTLS) at 17.5% of the portfolio, followed by Janus Henderson (JHG, 17.4%) and Arcellx (ACLX, 17.0%). Compared with Q4 2025, it opened 8 new positions, sold out of 14 and added to 3. The biggest buy was a new position in Chart Industries (GTLS) and the biggest sale an exit from Cidara Therapeutics (CDTX).
- Most Recent 13F
- Q2 2026
- Location
- CHICAGO, IL
- CIK
- 0001580162
- Portfolio Value
- $47.3M (Q1 2026)
- SEC Filing
- 0001062993-26-002171 ↗ filed Apr 27, 2026
Holdings Value
Holdings 12 stocks · $47.3M
| GTLS Chart Industries Inc. | 17.48% | 53,000 | $8.3M | New |
| JHG Janus Henderson Group PLC | 17.37% | 213,000 | $8.2M | Add +21.7% |
| ACLX Arcellx Inc. | 16.99% | 92,951 | $8.0M | New |
| FOLD Amicus Therapeutics Inc. | 15.28% | 666,000 | $7.2M | Add +66.5% |
| APLS Apellis Pharmaceuticals Inc. | 12.18% | 190,000 | $5.8M | New |
| TERN Terns Pharmaceuticals Inc. | 10.86% | 129,225 | $5.1M | New |
| DHIL Diamond Hill Investment Grp | 3.09% | 11,300 | $1.5M | New |
| BLFY Blue Foundry Bancorp | 3.07% | 146,012 | $1.5M | Add +639.9% |
| THR Thermon Group Holdings Inc. | 2.42% | 30,069 | $1.1M | New |
| EA Electronic Arts Inc. | 0.65% | 2,000 | $307K | No change |
| DAWN Day One Biopharmaceuticals I | 0.34% | 10,000 | $162K | New |
| HTBK Heritage Commerce Corp. | 0.28% | 14,014 | $132K | New |
Other holdings (17): bonds, preferreds, convertibles and warrants · $26.0M (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| BANDWIDTH INC (BAND 0.5 04/01/28) | NOTE 0.500% 4/0 · principal | 8,140 | $7.3M | Add +35.7% |
| CRACKER BARREL OLD COUNT (CBRL 0.625 06/15/26) | NOTE 0.625% 6/1 · principal | 6,883 | $6.8M | Add +1.2% |
| MGP INGREDIENTS INC (MGPI 1.875 11/15/41) | NOTE 1.875%11/1 · principal | 6,018 | $5.8M | No change |
| ETSY INC (ETSY 0.25 06/15/28) | NOTE 0.250% 6/1 · principal | 4,292 | $3.8M | No change |
| HP ENTERPRISE CO (HPE 7.625 09/01/27) | 7.625 MAND CONV | 32,900 | $2.1M | No change |
| XEROX HOLDINGS CORP (XRX 3.75 03/15/30) | NOTE 3.750% 3/1 · principal | 4,000 | $12K | No change |
| IRONWOOD PHARMACEUTICALS (IRWD 1.5 06/15/26) | NOTE 1.500% 6/1 · principal | 7,000 | $7K | Add +75.0% |
| ACCURAY INC (ARAY 3.75 06/01/26) | NOTE 3.750% 6/0 · principal | 6,500 | $6K | No change |
| SABRE GLBL INC (SABHLD 7.32 08/01/26) | NOTE 7.320% 8/0 · principal | 5,958 | $6K | New |
| THE REALREAL INC (REAL 1 03/01/28) | NOTE 1.000% 3/0 · principal | 5,307 | $5K | No change |
| RAPID7 INC (RPD 0.25 03/15/27) | NOTE 0.250% 3/1 · principal | 4,518 | $4K | New |
| NABORS INDUSTRIES INC (NBR 1.75 06/15/29) | NOTE 1.750% 6/1 · principal | 4,550 | $4K | Add +37.9% |
| SHAKE SHACK INC (SHAK 0 03/01/28) | NOTE 3/0 · principal | 4,189 | $4K | No change |
| LITHIUM ARGENTINA AG (LARCN 1.75 01/15/27) | NOTE 1.750% 1/1 · principal | 3,820 | $4K | New |
| ASSERTIO HOLDINGS INC (ASRT 6.5 09/01/27) | NOTE 6.500% 9/0 · principal | 2,750 | $3K | New |
| VERITONE INC (VERI 1.75 11/15/26) | NOTE 1.750%11/1 · principal | 2,500 | $2K | Add +150.0% |
| PAR TECHNOLOGY CORP (PAR 1.5 10/15/27) | NOTE 1.500%10/1 · principal | 1,127 | $1K | New |
Total filed on the 13F, all lines: $73.3M.
Portfolio Sells Q4 2025 → Q1 2026
| CDTX Cidara Therapeutics Inc. | Sold out | 0.00% | −16.47 |
| EXAS Exact Sciences Corp. | Sold out | 0.00% | −13.22 |
| CFLT Confluent Inc. Class A | Sold out | 0.00% | −10.76 |
| ATXS Astria Therapeutics Inc. | Sold out | 0.00% | −10.55 |
| HOLX Hologic Inc. | Sold out | 0.00% | −9.63 |
| RNAM Avidity Biosciences Inc. | Sold out | 0.00% | −3.84 |
| DAY Dayforce Inc. | Sold out | 0.00% | −3.63 |
| ALEX Alexander & Baldwin Inc. | Sold out | 0.00% | −2.81 |
| SNCR Synchronoss Technologies Inc. | Sold out | 0.00% | −2.36 |
| IROQ If Bancorp Inc. | Sold out | 0.00% | −2.05 |
| NWFL Norwood Financial Corp. | Sold out | 0.00% | −0.82 |
| GIFI Gulf Island Fabrication Inc. | Sold out | 0.00% | −0.67 |
| FSFG First Savings Financial Grp | Sold out | 0.00% | −0.63 |
| AVDL Avadel Pharmaceuticals Ltd. | Sold out | 0.00% | −0.33 |
Portfolio Buys Q4 2025 → Q1 2026
| GTLS Chart Industries Inc. | New | 17.48% | +17.48 |
| ACLX Arcellx Inc. | New | 16.99% | +16.99 |
| APLS Apellis Pharmaceuticals Inc. | New | 12.18% | +12.18 |
| TERN Terns Pharmaceuticals Inc. | New | 10.86% | +10.86 |
| FOLD Amicus Therapeutics Inc. | Add +66.5% | 15.28% | +6.65 |
| JHG Janus Henderson Group PLC | Add +21.7% | 17.37% | +4.76 |
| DHIL Diamond Hill Investment Grp | New | 3.09% | +3.09 |
| BLFY Blue Foundry Bancorp | Add +639.9% | 3.07% | +2.70 |
| THR Thermon Group Holdings Inc. | New | 2.42% | +2.42 |
| DAWN Day One Biopharmaceuticals I | New | 0.34% | +0.34 |
| HTBK Heritage Commerce Corp. | New | 0.28% | +0.28 |
Notes & Other Activity Q4 2025 → Q1 2026
| BANDWIDTH INC (BAND 0.5 04/01/28) | NOTE 0.500% 4/0 · principal | Add +35.7% | 8,140 | $7.3M |
| CRACKER BARREL OLD COUNT (CBRL 0.625 06/15/26) | NOTE 0.625% 6/1 · principal | Add +1.2% | 6,883 | $6.8M |
| CONFLUENT INC (CFLT 0 01/15/27) | NOTE 1/1 · principal | Sold out | 3,048 | $3.0Mbefore exit |
| EVENTBRITE INC (EB 0.75 09/15/26) | NOTE 0.750% 9/1 · principal | Sold out | 8,660 | $9Kbefore exit |
| IRONWOOD PHARMACEUTICALS (IRWD 1.5 06/15/26) | NOTE 1.500% 6/1 · principal | Add +75.0% | 7,000 | $7K |
| SABRE GLBL INC (SABHLD 7.32 08/01/26) | NOTE 7.320% 8/0 · principal | New | 5,958 | $6K |
| CABLE ONE INC (CABO 0 03/15/26) | NOTE 3/1 · principal | Sold out | 6,000 | $6Kbefore exit |
| JETBLUE AIRWAYS CORP (JBLU 0.5 04/01/26) | CONVERTIBLE BOND · principal | Sold out | 5,920 | $6Kbefore exit |
| OIL STATES INTL INC (OIS 4.75 04/01/26) | NOTE 4.750% 4/0 · principal | Sold out | 5,700 | $6Kbefore exit |
| BLACKLINE INC (BL 0 03/15/26) | NOTE 3/1 · principal | Sold out | 4,595 | $5Kbefore exit |
| RAPID7 INC (RPD 0.25 03/15/27) | NOTE 0.250% 3/1 · principal | New | 4,518 | $4K |
| NABORS INDUSTRIES INC (NBR 1.75 06/15/29) | NOTE 1.750% 6/1 · principal | Add +37.9% | 4,550 | $4K |
| PELOTON INTERACTIVE INC (PTON 0 02/15/26) | NOTE 2/1 · principal | Sold out | 4,100 | $4Kbefore exit |
| LITHIUM ARGENTINA AG (LARCN 1.75 01/15/27) | NOTE 1.750% 1/1 · principal | New | 3,820 | $4K |
| FUBOTV INC (FUBO 3.25 02/15/26) | NOTE 3.250% 2/1 · principal | Sold out | 2,926 | $3Kbefore exit |
| ASSERTIO HOLDINGS INC (ASRT 6.5 09/01/27) | NOTE 6.500% 9/0 · principal | New | 2,750 | $3K |
| VERITONE INC (VERI 1.75 11/15/26) | NOTE 1.750%11/1 · principal | Add +150.0% | 2,500 | $2K |
| FASTLY INC (FSLY 0 03/15/26) | NOTE 3/1 · principal | Sold out | 2,416 | $2Kbefore exit |
| TRIPADVISOR INC (TRIP 0.25 04/01/26) | NOTE 0.250% 4/0 · principal | Sold out | 2,000 | $2Kbefore exit |
| OMEROS CORP (OMER 5.25 02/15/26) | NOTE 5.250% 2/1 · principal | Sold out | 1,914 | $2Kbefore exit |
| DIGITALOCEAN HOLDINGS (DOCN 0 12/01/26) | NOTE 12/0 · principal | Sold out | 2,000 | $2Kbefore exit |
| PAR TECHNOLOGY CORP (PAR 1.5 10/15/27) | NOTE 1.500%10/1 · principal | New | 1,127 | $1K |
| ALARM.COM HLDGS INC (ALRM 0 01/15/26) | NOTE 1/1 · principal | Sold out | 1,003 | $1Kbefore exit |
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 12 | $48.4M | NUVL, APGE, GTLS, TMHC, CPRX |
| Q1 2026 | 12 | $47.3M | GTLS, JHG, ACLX, FOLD, APLS |
| Q4 2025 | 18 | $49.6M | CDTX, EXAS, JHG, CFLT, ATXS |
| Q3 2025 | 6 | $24.7M | VRNA, TRML, PBBK, CCRD, CFSB |
| Q2 2025 | 14 | $39.8M | SWTX, BPMC, OPOF, VIGL, PWOD |
| Q1 2025 | 14 | $44.0M | ITCI, FNA, CCRN, PDCO, EVBN |
| Q4 2024 | 15 | $42.8M | HTLF, EVBN, CCRN, AE, FFNW |
| Q3 2024 | 9 | $39.4M | HTLF, ENV, HAYN, RCM, FFNW |
| Q2 2024 | 11 | $27.5M | HAYN, HTLF, SILK, MCBC, WIRE |
| Q1 2024 | 12 | $20.0M | PXD, FUSN, CSTR, NWLI, CERE |