S&CO INC ABNB — AIRBNB INC A (QSBS STOCK)

Ownership history in S&CO INC  ·  19 quarters on record

AI Ownership Summary

S&CO INC reported AIRBNB INC A (QSBS STOCK) (ABNB) in 19 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 0.98% in 2024 Q1. The latest visible filing shows ABNB at 0.53% 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 ABNB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was S&CO INC's position in AIRBNB INC A (QSBS STOCK), 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

ABNB was reported at 0.53% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.98% in 2024 Q1

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.

ABNB stock page S&CO INC fund profile S&CO INC full holdings
How S&CO INC held ABNB — position size vs. price
% of Fund (quarterly)    ABNB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED — — — 62,355 — 0% 0.53% $8.5M 2026-02-14 (Est.) $121.35
2025 Q3 UNCHANGED — — — 62,355 — 0% 0.46% $7.6M 2025-11-06 $120.53
2025 Q2 REDUCED 19.4% -7.1% ✅ 62,355 -15,000 -19.4% 0.53% $8.3M 2025-08-07 $120.03
2025 Q1 UNCHANGED — — — 77,355 — 0% 0.62% $9.2M 2025-05-08 $126.39
2024 Q4 REDUCED 8.3% -9.1% ✅ 77,355 -7,000 -8.3% 0.69% $10.2M 2025-02-07 $134.98
2024 Q3 UNCHANGED — — — 84,355 — 0% 0.70% $10.7M 2024-11-07 $147.37
2024 Q2 UNCHANGED — — — 84,355 — 0% 0.89% $12.8M 2024-08-08 $114.64
2024 Q1 UNCHANGED — — — 84,355 — 0% 0.98% $13.9M 2024-05-09 $147.05
2023 Q4 UNCHANGED — — — 84,355 — 0% 0.88% $11.5M 2024-02-12 $153.80
10 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ABNB

As of 2026 Q1 — sorted by position size

MKA Charitable Fund 100.0% BluePrint Investing LLC 10.41% BluePrint Investing LLC 10.41% Paragon Capital Management Ltd 3Y 7Y 9.64% Ahara Advisors LLC 5.69% Sicart Associates LLC 3Y 7Y 3.04% Avory & Company, LLC 3Y 2.59% ENCOMPASS WEALTH ADVISORS, LLC 3Y 2.53% HS Management Partners, LLC 3Y 7Y 2.41% CALIFORNIA FIRST LEASING CORP 3Y 2.38%

FAQ About S&CO INC and ABNB

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

How long has S&CO INC reported owning ABNB?

S&CO INC reported ABNB across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported ABNB position in S&CO INC's portfolio?

The largest reported portfolio weight for ABNB was 0.98% in 2024 Q1.

What is the latest reported ABNB position on this page?

The most recent filing on this page is 2025 Q4, when S&CO INC reported 62,355 shares, equal to 0.53% of portfolio, with an estimated market value of $8.5M.

What does the chart on this ABNB ownership page compare?

The chart compares S&CO INC's quarterly ABNB 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.

How well did S&CO INC time their ABNB position?

Based on 13F filing dates vs. subsequent ABNB price moves, S&CO INC correctly timed 3 out of 6 reported position changes (50%). The annualised alpha on ABNB relative to SPY over the holding period was -13.1%.

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