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BCK Partners, Inc.

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13F filer, CIK 1845867, Corning, NY

BCK Partners, Inc. reported $185,216,009 across 26 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-04-27. Its ten largest share positions make up 96.03% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0002085853-26-000506

Period
2026-03-31
Reported value
$185M
Holdings
26
Top 10 weight
96.03%
New
0
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
VCSHadded+16,239$1.29M
IGIBadded+11,051$588K
VOOadded+661$395K
VOadded+1,130$325K
SPTMadded+224$17.7K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
GLWreduced-2,323-$316K
LLYexited-214-$230K
SCHFreduced-6,111-$151K
AMATreduced-368-$126K
VTIreduced-75-$24.1K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2026

Share positions as resolved from 13F-HR 0002085853-26-000506, largest first. % of portfolio is the value over $185,216,009, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
VOOVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 100,900 shares; 2024Q4: 77,417 shares; 2025Q1: 78,354 shares; 2025Q2: 78,407 shares; 2025Q3: 80,152 shares; 2025Q4: 76,456 shares; 2026Q1: 77,117 shares 77,117$46.1M24.88%+661Timeline
VCSHVANGUARD SCOTTSDALE FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 609,296 shares; 2024Q4: 504,478 shares; 2025Q1: 509,811 shares; 2025Q2: 514,744 shares; 2025Q3: 535,492 shares; 2025Q4: 554,016 shares; 2026Q1: 570,255 shares 570,255$45.2M24.41%+16,239Timeline
VOVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 119,881 shares; 2024Q4: 91,971 shares; 2025Q1: 92,785 shares; 2025Q2: 92,806 shares; 2025Q3: 96,776 shares; 2025Q4: 95,057 shares; 2026Q1: 96,187 shares 96,187$27.6M14.91%+1,130Timeline
VBVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 101,197 shares; 2024Q4: 75,325 shares; 2025Q1: 76,430 shares; 2025Q2: 79,352 shares; 2025Q3: 84,290 shares; 2025Q4: 82,019 shares; 2026Q1: 81,950 shares 81,950$21.5M11.59%-69Timeline
IGIBISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 453,956 shares; 2024Q4: 354,333 shares; 2025Q1: 359,536 shares; 2025Q2: 362,951 shares; 2025Q3: 375,389 shares; 2025Q4: 384,863 shares; 2026Q1: 395,914 shares 395,914$21.1M11.38%+11,051Timeline
SCHFSCHWAB STRATEGIC TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 199,290 shares; 2024Q4: 319,117 shares; 2025Q1: 329,826 shares; 2025Q2: 314,852 shares; 2025Q3: 323,558 shares; 2025Q4: 311,778 shares; 2026Q1: 305,667 shares 305,667$7.57M4.08%-6,111Timeline
SCHESCHWAB STRATEGIC TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 129,426 shares; 2024Q4: 99,091 shares; 2025Q1: 101,729 shares; 2025Q2: 99,457 shares; 2025Q3: 101,744 shares; 2025Q4: 97,118 shares; 2026Q1: 96,524 shares 96,524$3.18M1.72%-594Timeline
GLWCORNING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 62,169 shares; 2024Q4: 59,409 shares; 2025Q1: 26,845 shares; 2025Q2: 27,492 shares; 2025Q3: 31,405 shares; 2025Q4: 21,949 shares; 2026Q1: 19,626 shares 19,626$2.67M1.44%-2,323Timeline
VTIVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 5,779 shares; 2024Q4: 4,496 shares; 2025Q1: 4,469 shares; 2025Q2: 4,316 shares; 2025Q3: 4,265 shares; 2025Q4: 5,126 shares; 2026Q1: 5,051 shares 5,051$1.62M0.87%-75Timeline
SCHASCHWAB STRATEGIC TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 27,223 shares; 2024Q4: 49,245 shares; 2025Q1: 48,990 shares; 2025Q2: 48,640 shares; 2025Q3: 48,170 shares; 2025Q4: 47,745 shares; 2026Q1: 47,464 shares 47,464$1.38M0.75%-281Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 4,337 shares; 2024Q4: 4,237 shares; 2025Q1: 4,237 shares; 2025Q2: 4,239 shares; 2025Q3: 3,986 shares; 2025Q4: 3,926 shares; 2026Q1: 3,924 shares 3,924$996K0.54%-2Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,800 shares; 2024Q4: 2,031 shares; 2025Q1: 2,031 shares; 2025Q2: 1,975 shares; 2025Q3: 1,974 shares; 2025Q4: 1,974 shares; 2026Q1: 1,974 shares 1,974$946K0.51%0Timeline
JNJJOHNSON & JOHNSONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 3,492 shares; 2024Q4: 3,032 shares; 2025Q1: 2,807 shares; 2025Q2: 2,807 shares; 2025Q3: 2,807 shares; 2025Q4: 2,807 shares; 2026Q1: 2,807 shares 2,807$686K0.37%0Timeline
SPDWSPDR INDEX SHS FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 18,670 shares; 2024Q4: 15,157 shares; 2025Q1: 15,246 shares; 2025Q2: 14,913 shares; 2025Q3: 14,356 shares; 2025Q4: 14,164 shares; 2026Q1: 14,174 shares 14,174$647K0.35%+10Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,610 shares; 2024Q4: 2,610 shares; 2025Q1: 2,610 shares; 2025Q2: 2,610 shares; 2025Q3: 2,811 shares; 2025Q4: 2,685 shares; 2026Q1: 2,685 shares 2,685$559K0.3%0Timeline
XOMEXXON MOBIL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 3,155 shares; 2024Q4: 3,155 shares; 2025Q1: 3,155 shares; 2025Q2: 3,058 shares; 2025Q3: 3,048 shares; 2025Q4: 2,743 shares; 2026Q1: 2,640 shares 2,640$448K0.24%-103Timeline
NSCNORFOLK SOUTHN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,590 shares; 2024Q4: 1,590 shares; 2025Q1: 1,590 shares; 2025Q2: 1,590 shares; 2025Q3: 1,575 shares; 2025Q4: 1,525 shares; 2026Q1: 1,525 shares 1,525$438K0.24%0Timeline
SPSBSPDR SERIES TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 19,397 shares; 2024Q4: 14,400 shares; 2025Q1: 14,400 shares; 2025Q2: 14,220 shares; 2025Q3: 14,220 shares; 2025Q4: 14,220 shares; 2026Q1: 14,220 shares 14,220$428K0.23%0Timeline
SPTMSPDR SERIES TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 7,910 shares; 2024Q4: 5,132 shares; 2025Q1: 5,430 shares; 2025Q2: 5,039 shares; 2025Q3: 4,978 shares; 2025Q4: 4,242 shares; 2026Q1: 4,466 shares 4,466$353K0.19%+224Timeline
UNHUNITEDHEALTH GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,296 shares; 2024Q4: 1,285 shares; 2025Q1: 1,285 shares; 2025Q2: 1,285 shares; 2025Q3: 1,247 shares; 2025Q4: 1,142 shares; 2026Q1: 1,142 shares 1,142$309K0.17%0Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,353 shares; 2024Q4: 1,261 shares; 2025Q1: 787 shares; 2025Q2: 777 shares; 2025Q3: 775 shares; 2025Q4: 825 shares; 2026Q1: 825 shares 825$305K0.16%0Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 1,500 shares; 2025Q1: not reported; 2025Q2: 1,600 shares; 2025Q3: 1,599 shares; 2025Q4: 1,616 shares; 2026Q1: 1,616 shares 1,616$282K0.15%0Timeline
AMATAPPLIED MATLS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,795 shares; 2024Q4: 1,745 shares; 2025Q1: 1,745 shares; 2025Q2: 1,215 shares; 2025Q3: 1,170 shares; 2025Q4: 1,170 shares; 2026Q1: 802 shares 802$274K0.15%-368Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,510 shares; 2024Q4: 1,510 shares; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 995 shares; 2025Q4: 943 shares; 2026Q1: 943 shares 943$271K0.15%0Timeline
AMGNAMGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,074 shares; 2024Q4: 1,054 shares; 2025Q1: 715 shares; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 660 shares; 2026Q1: 610 shares 610$215K0.12%-50Timeline
SPIBSPDR SERIES TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 8,896 shares; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 6,005 shares; 2025Q3: 6,005 shares; 2025Q4: 6,005 shares; 2026Q1: 6,005 shares 6,005$201K0.11%0Timeline

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
LLYELI LILLY & CO214$230Kshares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0002085853-26-000506 base2026-04-27acceptance time not in the bulk data set