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Watchtower Advisors, LP

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13F filer, CIK 1807092, OLD GREENWICH, CT

Watchtower Advisors, LP reported $165,592,009 across 11 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-13. Its ten largest share positions make up 95.66% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001807092-26-000004

Period
2025-12-31
Reported value
$166M
Holdings
11
Top 10 weight
95.66%
New
2
Sold out
7

Largest buys vs the previous quarter

SecurityShares changeApprox. value
OHInew+339,098$15M
ASMLadded+11,027$11.8M
SGInew+101,440$9.06M

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
CLHexited-76,144-$17.7M
AXSexited-150,000-$14.4M
AMRZexited-284,416-$13.8M
APPFexited-40,000-$11M
BLDRexited-75,000-$9.09M

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, Q4 2025

Share positions as resolved from 13F-HR 0001807092-26-000004, largest first. % of portfolio is the value over $165,592,009, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
ASMLASML HLDG NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 20,234 shares; 2025Q4: 31,261 shares 31,261$33.4M20.2%+11,027Timeline
CVSCVS HEALTH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 260,000 shares; 2025Q2: 260,000 shares; 2025Q3: 357,000 shares; 2025Q4: 357,000 shares 357,000$28.3M17.11%0Timeline
PATKPATRICK INDS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 100,000 shares; 2025Q3: 150,000 shares; 2025Q4: 150,000 shares 150,000$16.3M9.82%0Timeline
OHIOMEGA HEALTHCARE INVS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 339,098 shares 339,098$15M9.08%newTimeline
APHAMPHENOL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 190,000 shares; 2024Q4: 160,000 shares; 2025Q1: 138,700 shares; 2025Q2: 138,700 shares; 2025Q3: 130,000 shares; 2025Q4: 100,000 shares 100,000$13.5M8.16%-30,000Timeline
AMDADVANCED MICRO DEVICES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 52,370 shares; 2025Q3: 60,000 shares; 2025Q4: 60,000 shares 60,000$12.8M7.76%0Timeline
RCLROYAL CARIBBEAN GROUPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 55,215 shares; 2024Q4: 55,215 shares; 2025Q1: 55,215 shares; 2025Q2: 55,215 shares; 2025Q3: 55,215 shares; 2025Q4: 40,000 shares 40,000$11.2M6.74%-15,215Timeline
AVGOBROADCOM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 155,471 shares; 2024Q4: 70,000 shares; 2025Q1: 48,950 shares; 2025Q2: 38,950 shares; 2025Q3: 33,955 shares; 2025Q4: 30,000 shares 30,000$10.4M6.27%-3,955Timeline
SGISOMNIGROUP INTERNATIONAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 101,440 shares 101,440$9.06M5.47%newTimeline
IBPINSTALLED BLDG PRODS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 24,743 shares; 2025Q3: 32,277 shares; 2025Q4: 32,277 shares 32,277$8.37M5.06%0Timeline
AZOAUTOZONE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,118 shares; 2024Q4: 2,118 shares; 2025Q1: 2,118 shares; 2025Q2: 2,118 shares; 2025Q3: 2,118 shares; 2025Q4: 2,118 shares 2,118$7.18M4.34%0Timeline

Sold out in Q4 2025

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

SecurityShares beforeValue beforeType
CLHCLEAN HARBORS INC76,144$17.7Mshares
AXSAXIS CAP HLDGS LTD150,000$14.4Mshares
AMRZAMRIZE LTD284,416$13.8Mshares
APPFAPPFOLIO INC40,000$11Mshares
BLDRBUILDERS FIRSTSOURCE INC75,000$9.09Mshares
LIILENNOX INTL INC15,059$7.97Mshares
VERONA PHARMA PLCVERONA PHARMA PLC70,000$7.47Mshares

How Q4 2025 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 0001807092-26-000004 base2026-02-13acceptance time not in the bulk data set