The Boeing Company
DE ˙ XTRA ˙ US0970231058
184,44 € ↓ -2,14 (-1,15%)
2026-06-03
DEL PRIS
SecurityDE:BCO / The Boeing Company
InstitutionTandem Capital Management Corp /adv
Latest Disclosed Ownership15,297 shares
Latest Disclosed Value $ 3,044,562
Tandem Capital Management Corp /adv reports 3.73% decrease in ownership of BCO / The Boeing Company

On April 16, 2026 - Tandem Capital Management Corp /adv filed a 13F-HR form disclosing ownership of 15,297 shares of The Boeing Company (DE:BCO) valued at $2,646,993 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 15,890 shares of The Boeing Company. This represents a change in shares of -3.73% during the quarter. The current value of the position is $2,821,379 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)
2026-04-16 2026-03-31 13F BOEING COM 097023105 15,297 -593 -3.73 3,045 -11.77 1.5244
2026-01-23 2025-12-31 13F BOEING COM 097023105 15,890 1,141 7.74 3,450 8.39 1.5693
2025-11-12 2025-09-30 13F BOEING COM 097023105 14,749 57 0.39 3,183 3.41 1.4816
2025-07-24 2025-06-30 13F BOEING COM 097023105 14,692 456 3.20 3,078 26.82 1.5577
2025-04-22 2025-03-31 13F BOEING COM 097023105 14,236 421 3.05 2,428 -0.74 1.3568
2025-01-27 2024-12-31 13F BOEING COM 097023105 13,815 5,451 65.17 2,445 92.37 1.3091
2024-10-25 2024-09-30 13F/A-1 BOEING COM 097023105 8,364 595 7.66 1,272 -11.43 0.6697
2024-10-23 2024-09-30 13F BOEING COM 097023105 7,827 58 1,511 0.8569
2024-07-08 2024-06-30 13F BOEING COM 097023105 7,769 -58 -0.74 1,436 -4.97 0.7866
2024-05-16 2024-03-31 13F BOEING COM 097023105 7,827 611 8.47 1,511 -19.68 0.8569
2024-02-02 2023-12-31 13F BOEING COM 097023105 7,216 0 0.00 1,881 35.94 1.1675
2023-10-30 2023-09-30 13F/A-1 BOEING COM 097023105 7,216 -6 -0.08 1,383 -9.25 0.9500
2023-10-30 2023-09-30 13F BOEING COM 097023105 7,216 -6 1,383 0.9500
2023-08-15 2023-06-30 13F BOEING COM 097023105 7,222 106 1.49 1,525 0.86 0.9942
2023-05-04 2023-03-31 13F BOEING COM 097023105 7,116 -101 -1.40 1,512 9.97 1.0648
2023-01-18 2022-12-31 13F BOEING COM 097023105 7,217 193 2.75 1,375 38.37 1.0833
2022-10-24 2022-09-30 13F BOEING COM 097023105 7,024 109 1.58 993 5.08 0.8379
2022-07-19 2022-06-30 13F BOEING COM 097023105 6,915 102 1.50 945 -21.58 0.7568
2022-04-26 2022-03-31 13F BOEING COM 097023105 6,813 622 10.05 1,205 -3.29 0.8336
2022-02-04 2021-12-31 13F BOEING COM 097023105 6,191 -180 -2.83 1,246 -11.06 0.7185
2021-10-28 2021-09-30 13F BOEING COM 097023105 6,371 47 0.74 1,401 -7.52 0.8822
2021-08-06 2021-06-30 13F BOEING COM 097023105 6,324 0 0.00 1,515 -5.96 0.9542
2021-05-12 2021-03-31 13F BOEING COM 097023105 6,324 -13 -0.21 1,611 18.81 1.1141
2021-02-01 2020-12-31 13F BOEING COM 097023105 6,337 -3,430 -35.12 1,356 -15.99 1.0192
2020-11-03 2020-09-30 13F BOEING COM 097023105 9,767 -198 -1.99 1,614 -11.66 1.4256
2020-08-13 2020-06-30 13F BOEING COM 097023105 9,965 -1,375 -12.13 1,827 8.04 1.7899
2020-05-12 2020-03-31 13F BOEING COM 097023105 11,340 2,181 23.81 1,691 -43.33 1.9038
2020-03-04 2019-12-31 13F BOEING COM 097023105 9,159 9,159 2,984 2.5612
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.