BCK Capital Management LP In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 8, 2025), BCK Capital Management LP reported 59 stock positions worth $128.4 million . Its top holding was United States Steel (X) at 14.0% of the portfolio, followed by Kellanova (K, 13.1% ) and Juniper Networks (JNPR, 8.2% ). Compared with Q4 2024, it opened 22 new positions, sold out of 17, added to 9 and reduced 3. The biggest buy was a new position in Cohen Circle Acquisitio Class A (CCIR) and the biggest sale an exit from Endeavor Group Hold Class A (EDR).
Location STAMFORD, CT
CIK 0001819275
Portfolio Value $128.4M (Q1 2025) Holdings 59 stocks · $128.4M Holdings quarter Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2024 X United States Steel Corp. 426,538 $18.0M Add +2.3% K Kellanova 203,720 $16.8M Add +20.8% JNPR Juniper Networks Inc. 290,484 $10.5M Add +83.7% CCIR Cohen Circle Acquisitio Class A 742,745 $8.3M New COLOMBIER ACQUISITION CORP 603,354 $6.4M New ACI Albertsons Cos Inc. Class A 242,976 $5.3M Add +18.0% NETD Nabors Energy Transition C-A 464,175 $5.1M New RNW Renew Energy Global PLC-A 559,160 $3.3M New SPR Spirit Aerosystems Hold Class A 74,159 $2.6M No change LGTY Logility Supply Chain Soluti 171,784 $2.4M New DNB Dun & Bradstreet Holdings Inc. 259,937 $2.3M Add +101.3% WSC Willscot Holdings Corp. 81,139 $2.3M No change ALE Allete Inc. 27,837 $1.8M Add +153.1% IP International Paper Co. 32,457 $1.7M New VSTS Vestis Corp. 167,107 $1.7M Add +21.8% GOOGL Alphabet Inc. Class A 10,000 $1.5M Reduce -24.9% GENI Genius Sports Ltd. 148,533 $1.5M No change ENFN Enfusion Inc. Class A 132,000 $1.5M New FYBR Frontier Communications Pare 41,000 $1.5M No change HEES H&E Equipment Services Inc. 15,500 $1.5M New ANSS Ansys Inc. 4,629 $1.5M No change ITCI Intra-Cellular Therapies Inc. 11,000 $1.5M New NVRO Nevro LLC filed as NEVRO CORP 248,000 $1.4M New RDUS Radius Recycling Inc. Class A 50,000 $1.4M New AAPL Apple Inc. 6,500 $1.4M Reduce -3.8% PLYA Playa Hotels & Resorts NV 107,000 $1.4M New PRA Proassurance Corp. 61,000 $1.4M New FNA Paragon 28 Inc. 109,000 $1.4M New BECN Beacon Roofing Supply Inc. 11,140 $1.4M New HES Hess Corp. 8,500 $1.4M No change DESP Despegar.com Corp. 64,980 $1.2M Add +17.3% CHX Championx Corp. 34,909 $1.0M Add +39.6% CMRX Chimerix Inc. 113,000 $962K New TSVT 2SEVENTY Bio Inc. 191,000 $944K New PYCR Paycor HCM Inc. 40,434 $907K New CCRN Cross Country Healthcare Inc. 59,250 $882K No change IONQ Ionq Inc. 38,228 $844K No change ARES ACQUISITION CORP II 74,267 $828K No change AGS Playags Inc. 65,000 $787K No change EVRI Everi Holdings Inc. 56,000 $766K No change JWN Nordstrom Inc. 29,500 $721K No change PDCO Patterson Cos Inc. 23,000 $719K No change AMPS Altus Power Inc. 145,000 $718K New TGI Triumph Group Inc. 28,000 $710K New ATSG Air Transport Services Group 31,500 $707K No change WBA Walgreens Boots Alliance Inc. 63,000 $704K New KVUE Kenvue Inc. 27,500 $659K Reduce -75.0% AITR AI Transportation Acquisitio 55,701 $611K No change BAYA Bayview Acquisition Corp. Class A 50,000 $545K No change SRDX Surmodics Inc. 17,000 $519K No change OAKU Oak Woods Acquisition Corp. Class A 37,134 $429K No change ANSC Agriculture & Natural Soluti 37,134 $396K No change DIS The Walt Disney Co. filed as DISNEY WALT CO 3,925 $387K No change SAIL Sailpoint Inc. 15,000 $281K New HTZ Hertz Global Hldgs Inc. 70,000 $276K No change MX Magnachip Semiconductor Corp. 74,268 $255K No change PL Planet Labs PBC 37,133 $126K No change POLESTAR AUTOMOTIVE HLDG UK 399,191 $72K No change NXDR Nextdoor Holdings Inc. 37,133 $57K No change
Options reported separately and not counted above: ACI calls ($0), AMED calls ($0), VSTS calls ($0), TLT calls ($0), JNPR calls ($0), JNPR puts ($0), X calls ($0), X puts ($0), WSC calls ($0).
Other holdings (4): bonds, preferreds, convertibles and warrants · $299K (not counted above) Security Class Shares / Principal Value Change IONQ.WS Ionq Inc. -CW26 *W EXP 09/30/202 19,929 $221K New HTZWW Hertz Global Hldgs Inc. -CW51 *W EXP 06/30/205 30,777 $70K No change KDKRW Ares Acquisition Corp. II-28 *W EXP 99/99/999 27,850 $8K No change GGROW Gogoro Inc. -CW27 *W EXP 04/04/202 13,924 $358 No change
Total filed on the 13F, all lines: $128.7M.
Portfolio Sells Q4 2024 → Q1 2025 Portfolio Sells quarter Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2024 % Of Portfolio Change To Portfolio ▲ EDR Endeavor Group Hold Class A Sold out 0.00% −25.77 HCP Hashicorp Inc. Class A Sold out 0.00% −3.52 SUM Summit Materials Inc. Class A Sold out 0.00% −3.40 SIRI Sirius XM Holdings Inc. Sold out 0.00% −2.65 ZUO Zuora Inc. Class A Sold out 0.00% −2.51 MTTR Matterport Inc. Sold out 0.00% −2.29 ALTM Arcadium Lithium PLC Sold out 0.00% −1.90 KVUE Kenvue Inc. Reduce -75.0% 0.51% −1.19 ALTR Altair Engineering Inc. Class A Sold out 0.00% −1.09 USAP Universal Stainless & Alloy Sold out 0.00% −1.02 GOOGL Alphabet Inc. Class A Reduce -24.9% 1.20% −0.62 BALY Bally's Corp. Sold out 0.00% −0.56 BARNES GROUP INC Sold out 0.00% −0.53 SMAR Smartsheet Inc. Class A Sold out 0.00% −0.53 ROIC Retail Opportunity Investmen Sold out 0.00% −0.50 CDMO Avid Bioservices Inc. Sold out 0.00% −0.50 SKGR SK Growth Opportunities Co. Class A Sold out 0.00% −0.47 EGRVF Evergreen Corporation Class A Sold out 0.00% −0.40 GRNT Granite Ridge Resources Inc. Sold out 0.00% −0.14 AAPL Apple Inc. Reduce -3.8% 1.12% −0.10
Portfolio Buys Q4 2024 → Q1 2025 Portfolio Buys quarter Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2024 % Of Portfolio Change To Portfolio ▼ CCIR Cohen Circle Acquisitio Class A New 6.49% +6.49 COLOMBIER ACQUISITION CORP New 5.00% +5.00 NETD Nabors Energy Transition C-A New 3.96% +3.96 JNPR Juniper Networks Inc. Add +83.7% 8.19% +3.90 X United States Steel Corp. Add +2.3% 14.04% +3.78 K Kellanova Add +20.8% 13.09% +3.21 RNW Renew Energy Global PLC-A New 2.57% +2.57 LGTY Logility Supply Chain Soluti New 1.91% +1.91 IP International Paper Co. New 1.35% +1.35 ACI Albertsons Cos Inc. Class A Add +18.0% 4.16% +1.24 ENFN Enfusion Inc. Class A New 1.15% +1.15 HEES H&E Equipment Services Inc. New 1.14% +1.14 ITCI Intra-Cellular Therapies Inc. New 1.13% +1.13 NVRO Nevro LLC New 1.13% +1.13 RDUS Radius Recycling Inc. Class A New 1.12% +1.12 PLYA Playa Hotels & Resorts NV New 1.11% +1.11 PRA Proassurance Corp. New 1.11% +1.11 FNA Paragon 28 Inc. New 1.11% +1.11 BECN Beacon Roofing Supply Inc. New 1.07% +1.07 ALE Allete Inc. Add +153.1% 1.42% +0.91 CMRX Chimerix Inc. New 0.75% +0.75 TSVT 2SEVENTY Bio Inc. New 0.73% +0.73 PYCR Paycor HCM Inc. New 0.71% +0.71 DNB Dun & Bradstreet Holdings Inc. Add +101.3% 1.81% +0.65 AMPS Altus Power Inc. New 0.56% +0.56 TGI Triumph Group Inc. New 0.55% +0.55 WBA Walgreens Boots Alliance Inc. New 0.55% +0.55 CHX Championx Corp. Add +39.6% 0.81% +0.32 SAIL Sailpoint Inc. New 0.22% +0.22 DESP Despegar.com Corp. Add +17.3% 0.95% +0.18 VSTS Vestis Corp. Add +21.8% 1.29% −0.23
Options Activity Q4 2024 → Q1 2025 Security Type Change vs Q4 2024 Underlying Shares Value ▼ ACI Albertsons Cos Inc. Class A call Reduce -23.1% 770,800 $0 ACI Albertsons Cos Inc. Class A put Sold out 39,000 $0before exit AMED Amedisys Inc. call New 200,000 $0 AMED Amedisys Inc. put Sold out 456,200 $0before exit EDR Endeavor Group Hold Class A put Sold out 1,501,000 $0before exit EDR Endeavor Group Hold Class A call Sold out 394,500 $0before exit VSTS Vestis Corp. call Reduce -87.7% 45,900 $0 GXO Gxo Logistics Inc. call Sold out 180,300 $0before exit TLT iShares 20+ Year Treasury BD call Reduce -50.0% 74,300 $0 JNPR Juniper Networks Inc. call New 128,700 $0 JNPR Juniper Networks Inc. put Add +114.5% 266,900 $0 SIRI Sirius XM Holdings Inc. put Sold out 699,600 $0before exit X United States Steel Corp. call Add +84.8% 1,082,800 $0 X United States Steel Corp. put Reduce -17.4% 421,200 $0 WSC Willscot Holdings Corp. call New 73,600 $0 ALTM Arcadium Lithium PLC call Sold out 714,800 $0before exit
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
Notes & Other Activity Q4 2024 → Q1 2025 Security Class Change vs Q4 2024 Shares / Principal Value ▼ IONQ.WS Ionq Inc. -CW26 *W EXP 09/30/202 New 19,929 $221K
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q1 2026 21 $23.0M VLOS, CEPO, MCGA, WBD, EA Q4 2025 6 $18.0M VLOS, CCIX, CEPO, MCGA, MRLN Q3 2025 83 $93.0M SPR, K, GTLS, CTLP, TXNM Q2 2025 71 $115.1M K, JNPR, GMS, ACI, SPR Q1 2025 59 $128.4M X, K, JNPR, CCIR, COLOMBIER ACQUISITION CORP Q4 2024 54 $138.2M EDR, X, K, JNPR, HCP Q3 2024 62 $166.8M EDR, SIRI, X, RCM, ACI Q2 2024 70 $154.6M EDR, LSXMA, X, AGR, ACI Q1 2024 65 $146.8M EVBG, X, EDR, LSXMA, PXD