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Watchtower Advisors, LP

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13F filer, CIK 1807092, OLD GREENWICH, CT

Watchtower Advisors, LP reported $179,608,073 across 11 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-13. Its ten largest share positions make up 97.84% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001807092-26-000009

Period
2026-06-30
Reported value
$180M
Holdings
11
Top 10 weight
97.84%
New
2
Sold out
3

Largest buys vs the previous quarter

SecurityShares changeApprox. value
TXTnew+125,600$11.5M
SREadded+77,834$7.22M
NOKnew+500,000$6.64M
ELANadded+73,909$1.82M

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
AMDreduced-33,334-$19.4M
MUreduced-11,047-$12.8M
SGIexited-139,866-$10.3M
AVGOexited-11,235-$3.48M
APHexited-7,378-$932K

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, Q2 2026

Share positions as resolved from 13F-HR 0001807092-26-000009, largest first. % of portfolio is the value over $179,608,073, 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; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 20,234 shares; 2025Q4: 31,261 shares; 2026Q1: 31,261 shares; 2026Q2: 31,261 shares 31,261$62.2M34.63%0Timeline
OHIOMEGA HEALTHCARE INVS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 339,098 shares; 2026Q1: 541,138 shares; 2026Q2: 541,138 shares 541,138$25.8M14.37%0Timeline
CVSCVS HEALTH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 260,000 shares; 2025Q2: 260,000 shares; 2025Q3: 357,000 shares; 2025Q4: 357,000 shares; 2026Q1: 182,357 shares; 2026Q2: 182,357 shares 182,357$18.9M10.5%0Timeline
MUMICRON TECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 23,047 shares; 2026Q2: 12,000 shares 12,000$13.9M7.71%-11,047Timeline
PATKPATRICK INDS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 100,000 shares; 2025Q3: 150,000 shares; 2025Q4: 150,000 shares; 2026Q1: 150,000 shares; 2026Q2: 150,000 shares 150,000$13.5M7.5%0Timeline
TXTTEXTRON INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 125,600 shares 125,600$11.5M6.41%newTimeline
SRESEMPRAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 35,666 shares; 2026Q2: 113,500 shares 113,500$10.5M5.86%+77,834Timeline
IBPINSTALLED BLDG PRODS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 24,743 shares; 2025Q3: 32,277 shares; 2025Q4: 32,277 shares; 2026Q1: 32,277 shares; 2026Q2: 32,277 shares 32,277$7.42M4.13%0Timeline
NOKNOKIA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 500,000 shares 500,000$6.64M3.7%newTimeline
ELANELANCO ANIMAL HEALTH INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 147,816 shares; 2026Q2: 221,725 shares 221,725$5.46M3.04%+73,909Timeline
AMDADVANCED MICRO DEVICES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 52,370 shares; 2025Q3: 60,000 shares; 2025Q4: 60,000 shares; 2026Q1: 40,000 shares; 2026Q2: 6,666 shares 6,666$3.87M2.16%-33,334Timeline

Sold out in Q2 2026

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

SecurityShares beforeValue beforeType
SGISOMNIGROUP INTERNATIONAL INC139,866$10.3Mshares
AVGOBROADCOM INC11,235$3.48Mshares
APHAMPHENOL CORP7,378$932Kshares

How Q2 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 0001807092-26-000009 base2026-08-13acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
13F-HR 0001807092-26-000009 Quarter ended 2026-06-302026-08-13acceptance time not in the bulk data set
13F-HR 0001807092-26-000007 Quarter ended 2026-03-312026-05-14acceptance time not in the bulk data set
13F-HR 0001807092-26-000004 Quarter ended 2025-12-312026-02-13acceptance time not in the bulk data set
13F-HR 0001807092-25-000013 Quarter ended 2025-09-302025-11-13acceptance time not in the bulk data set
13F-HR 0001807092-25-000008 Quarter ended 2025-06-302025-08-13acceptance time not in the bulk data set
13F-HR 0001807092-25-000002 Quarter ended 2025-03-312025-05-12acceptance time not in the bulk data set
13F-HR 0001493152-25-006309 Quarter ended 2024-12-312025-02-13acceptance time not in the bulk data set
13F-HR 0001493152-24-045553 Quarter ended 2024-09-302024-11-14acceptance time not in the bulk data set
13F-HR 0001493152-24-031903 Quarter ended 2024-06-302024-08-14acceptance time not in the bulk data set
13F-HR 0001493152-24-019595 Quarter ended 2024-03-312024-05-15acceptance time not in the bulk data set
13F-HR 0001493152-24-006450 Quarter ended 2023-12-312024-02-14acceptance time not in the bulk data set
13F-HR 0001493152-23-040863 Quarter ended 2023-09-302023-11-14acceptance time not in the bulk data set
13F-HR 0001493152-23-028196 Quarter ended 2023-06-302023-08-14acceptance time not in the bulk data set
13F-HR 0001493152-23-016994 Quarter ended 2023-03-312023-05-15acceptance time not in the bulk data set
13F-HR 0001493152-23-004662 Quarter ended 2022-12-312023-02-14acceptance time not in the bulk data set
13F-HR 0001493152-22-031810 Quarter ended 2022-09-302022-11-14acceptance time not in the bulk data set
13F-HR 0001493152-22-022633 Quarter ended 2022-06-302022-08-15acceptance time not in the bulk data set
13F-HR 0001493152-22-013591 Quarter ended 2022-03-312022-05-16acceptance time not in the bulk data set
13F-HR 0001493152-22-004346 Quarter ended 2021-12-312022-02-14acceptance time not in the bulk data set