AGEN β€” AGENUS INC

Ownership history in JANE STREET GROUP, LLC  Β·  10 quarters on record

AI Ownership Summary

JANE STREET GROUP, LLC reported AGENUS INC (AGEN) in 10 quarterly 13F filings from 2024 Q2 through 2025 Q4. The latest visible filing shows AGEN 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 AGEN 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 AGENUS 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
2025 Q4

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

High-water mark
Peak Conviction
0.0% in 2024 Q2

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

Time in book
Holding Window
2024 Q2 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 JANE STREET GROUP, LLC held AGEN β€” position size vs. price
% of Fund (quarterly)    AGEN price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 11,700 -61,872 -84.1% 0.00% $37K 2026-02-14 (Est.) $2.92
2025 Q4 ADDED 73,572 +44,772 +155.5% 0.00% $231K 2026-02-14 (Est.) $2.92
2025 Q3 REDUCED 28,800 -4,200 -12.7% 0.00% $111K 2025-11-14 $4.34
2025 Q3 REDUCED 33,000 -19,778 -37.5% 0.00% $127K 2025-11-14 $4.34
2025 Q3 ADDED 52,778 +5,078 +10.6% 0.00% $203K 2025-11-14 $4.34
2025 Q2 ADDED 47,700 +32,100 +205.8% 0.00% $218K 2025-08-14 $4.55
2025 Q2 REDUCED 15,600 -90,105 -85.2% 0.00% $71K 2025-08-14 $4.55
2024 Q4 ADDED 105,705 +52,215 +97.6% 0.00% $290K 2025-02-14 $3.51
2024 Q3 ADDED 53,490 +19,427 +57.0% 0.00% $293K 2024-11-15 $2.72
2024 Q2 INITIATED 34,063 β€” β€” 0.00% $571K 2024-08-15 $5.17

FAQ About JANE STREET GROUP, LLC and AGEN

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 AGEN?

JANE STREET GROUP, LLC reported AGEN across 10 quarterly 13F filings, from 2024 Q2 through 2025 Q4.

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

The largest reported portfolio weight for AGEN was 0.00% in 2024 Q2.

What is the latest reported AGEN position on this page?

The most recent filing on this page is 2025 Q4, when JANE STREET GROUP, LLC reported 11,700 shares, equal to 0.00% of portfolio, with an estimated market value of $37K.

What does the chart on this AGEN ownership page compare?

The chart compares JANE STREET GROUP, LLC's quarterly AGEN 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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