The Boeing Company
DE ˙ XTRA ˙ US0970231058
184,44 € ↓ -2,14 (-1,15%)
2026-06-03
AKTIENPREIS
SecurityDE:BCO / The Boeing Company
InstitutionRockingstone Advisors LLC
Latest Disclosed Ownership4,556 shares
Latest Disclosed Value $ 906,781
Rockingstone Advisors LLC ownership in BCO / The Boeing Company

On April 9, 2026 - Rockingstone Advisors LLC filed a 13F-HR form disclosing ownership of 4,556 shares of The Boeing Company (DE:BCO) valued at $788,370 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 4,556 shares of The Boeing Company. This represents a change in shares of 0.00% during the quarter. The current value of the position is $840,309 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-09 2026-03-31 13F BOEING COM 097023105 4,556 0 0.00 907 -8.39 0.4160
2026-01-28 2025-12-31 13F BOEING COM 097023105 4,556 1,044 29.73 989 30.65 0.4507
2025-10-09 2025-09-30 13F BOEING COM 097023105 3,512 797 29.36 758 33.27 0.3740
2025-07-22 2025-06-30 13F BOEING COM 097023105 2,715 -4,657 -63.17 569 -54.81 0.2991
2025-04-15 2025-03-31 13F BOEING COM 097023105 7,372 -170 -2.25 1,257 -5.77 0.5659
2025-01-14 2024-12-31 13F BOEING COM 097023105 7,542 1,352 21.84 1,335 41.76 0.5897
2024-10-08 2024-09-30 13F BOEING COM 097023105 6,190 1,563 33.78 941 11.76 0.4622
2024-07-17 2024-06-30 13F BOEING COM 097023105 4,627 -3,160 -40.58 842 -43.94 0.4322
2024-07-09 2024-03-31 13F BOEING COM 097023105 7,787 1,411 22.13 1,503 -9.57 0.7758
2024-07-09 2023-12-31 13F BOEING COM 097023105 6,376 -1,129 -15.04 1,662 15.51 0.9314
2024-07-09 2023-09-30 13F BOEING COM 097023105 7,505 174 2.37 1,439 -7.11 0.7952
2024-07-09 2023-06-30 13F BOEING COM 097023105 7,331 126 1.75 1,548 1.18 0.8735
2024-07-09 2023-03-31 13F BOEING COM 097023105 7,205 -65 -0.89 1,531 10.55 0.9321
2024-07-09 2022-12-31 13F BOEING COM 097023105 7,270 7,270 1,385 1.0344
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.