BX BLACKSTONE GROUP L P

Ownership history in Seneca House Advisors  ·  33 quarters on record

AI Ownership Summary

Seneca House Advisors reported BLACKSTONE GROUP L P (BX) in 33 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 3.76% in 2023 Q4. The latest visible filing shows BX at 2.48% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this BX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Seneca House Advisors's position in BLACKSTONE GROUP L P, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

BX was reported at 2.48% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
3.76% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Seneca House Advisors held BX — position size vs. price
% of Fund (quarterly)    BX price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 9 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 43,005 -2,528 -5.6% 2.48% $6.6M 2026-02-14 (Est.) $129.86
2025 Q3 REDUCED 45,533 -3,416 -7.0% 3.14% $7.8M 2025-10-10 $150.67
2025 Q2 ADDED 48,949 +819 +1.7% 3.11% $7.3M 2025-07-09 $154.54
2025 Q1 REDUCED 48,130 -59 -0.1% 2.86% $6.7M 2025-04-11 $122.99
2024 Q4 REDUCED 48,189 -6,799 -12.4% 3.29% $8.3M 2025-01-21 $174.06
2024 Q3 REDUCED 54,988 -5,558 -9.2% 3.55% $8.4M 2024-10-04 $144.93
2024 Q2 ADDED 60,546 +742 +1.2% 3.25% $7.5M 2024-07-12 $122.66
2024 Q1 REDUCED 59,804 -2,199 -3.5% 3.42% $7.9M 2024-04-18 $113.35
2023 Q4 REDUCED 62,003 -887 -1.4% 3.76% $8.1M 2024-01-10 $113.63
24 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About Seneca House Advisors and BX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Seneca House Advisors reported owning BX?

Seneca House Advisors reported BX across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported BX position in Seneca House Advisors's portfolio?

The largest reported portfolio weight for BX was 3.76% in 2023 Q4.

What is the latest reported BX position on this page?

The most recent filing on this page is 2025 Q4, when Seneca House Advisors reported 43,005 shares, equal to 2.48% of portfolio, with an estimated market value of $6.6M.

What does the chart on this BX ownership page compare?

The chart compares Seneca House Advisors's quarterly BX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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