JANE STREET GROUP, LLC MDAI — SPECTRAL AI INC

Ownership history in JANE STREET GROUP, LLC  ·  5 quarters on record

AI Ownership Summary

JANE STREET GROUP, LLC reported SPECTRAL AI INC (MDAI) in 5 quarterly 13F filings from 2024 Q1 through 2026 Q1. The latest visible filing shows MDAI at 0.00% 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.

What this MDAI ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was JANE STREET GROUP, LLC's position in SPECTRAL AI INC, 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
2026 Q1

MDAI was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2026 Q1

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

Time in book
Holding Window
2024 Q1 to 2026 Q1

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.

MDAI stock page JANE STREET GROUP, LLC fund profile JANE STREET GROUP, LLC full holdings
How JANE STREET GROUP, LLC held MDAI — position size vs. price
% of Fund (quarterly)    MDAI price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 5 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED — — — 221,001 +168,409 +320.2% 0.00% $325K 2026-05-12 $2.15
2025 Q4 ADDED — — — 52,592 +22,864 +76.9% 0.00% $75K 2026-02-12 $1.51
2025 Q2 REDUCED 8.4% -13.3% ✅ 29,728 -2,714 -8.4% 0.00% $74K 2025-08-14 $2.10
2024 Q4 ADDED — — — 32,442 +14,893 +84.9% 0.00% $92K 2025-02-14 $2.12
2024 Q1 INITIATED — — — 17,549 — — 0.00% $37K 2024-05-16 $1.58

🏢 Other funds also holding MDAI

As of 2026 Q1 — sorted by position size

Highlander Partners, L.P. 3Y 0.52% UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 3Y 7Y 0.05% BRIDGEWAY CAPITAL MANAGEMENT, LLC 3Y 7Y 0.01% Philip James Wealth Mangement, LLC 0.0% Shay Capital LLC 3Y 0.0% N.E.W. Advisory Services LLC 3Y 0.0% Forum Financial Management, LP 3Y 0.0% XTX Topco Ltd 3Y 0.0% Westside Investment Management, Inc. 3Y 7Y 0.0% Rathbones Group PLC 3Y 7Y 0.0%

FAQ About JANE STREET GROUP, LLC and MDAI

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

How long has JANE STREET GROUP, LLC reported owning MDAI?

JANE STREET GROUP, LLC reported MDAI across 5 quarterly 13F filings, from 2024 Q1 through 2026 Q1.

What was the largest reported MDAI position in JANE STREET GROUP, LLC's portfolio?

The largest reported portfolio weight for MDAI was 0.00% in 2026 Q1.

What is the latest reported MDAI position on this page?

The most recent filing on this page is 2026 Q1, when JANE STREET GROUP, LLC reported 221,001 shares, equal to 0.00% of portfolio, with an estimated market value of $325K.

What does the chart on this MDAI ownership page compare?

The chart compares JANE STREET GROUP, LLC's quarterly MDAI 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 JANE STREET GROUP, LLC time their MDAI position?

Based on 13F filing dates vs. subsequent MDAI price moves, JANE STREET GROUP, LLC correctly timed 3 out of 4 reported position changes (75%). The annualised alpha on MDAI relative to SPY over the holding period was -5.8%.

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