ADAGE CAPITAL PARTNERS GP, L.L.C. JCAP JEFFERSON CAPITAL INC

Ownership history in ADAGE CAPITAL PARTNERS GP, L.L.C.  ·  4 quarters on record

AI Ownership Summary

ADAGE CAPITAL PARTNERS GP, L.L.C. reported JEFFERSON CAPITAL INC (JCAP) in 4 quarterly 13F filings from 2025 Q2 through 2026 Q1. Peak portfolio weight reached 0.05% in 2026 Q1. The latest visible filing shows JCAP at 0.05% 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 JCAP ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ADAGE CAPITAL PARTNERS GP, L.L.C.'s position in JEFFERSON CAPITAL 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

JCAP was reported at 0.05% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.05% 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
2025 Q2 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.

How ADAGE CAPITAL PARTNERS GP, L.L.C. held JCAP — position size vs. price
% of Fund (quarterly)    JCAP price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED 1,762,799 +475,290 +36.9% 0.05% $33.9M 2026-05-15 $17.62
2025 Q4 ADDED 1,287,509 +68,341 +5.6% 0.04% $28.8M 2026-02-17 $20.77
2025 Q3 ADDED 1,219,168 +391,168 +47.2% 0.03% $21.0M 2025-11-14 $21.33
2025 Q2 INITIATED 828,000 0.03% $15.3M 2025-08-14 $17.94

FAQ About ADAGE CAPITAL PARTNERS GP, L.L.C. and JCAP

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

How long has ADAGE CAPITAL PARTNERS GP, L.L.C. reported owning JCAP?

ADAGE CAPITAL PARTNERS GP, L.L.C. reported JCAP across 4 quarterly 13F filings, from 2025 Q2 through 2026 Q1.

What was the largest reported JCAP position in ADAGE CAPITAL PARTNERS GP, L.L.C.'s portfolio?

The largest reported portfolio weight for JCAP was 0.05% in 2026 Q1.

What is the latest reported JCAP position on this page?

The most recent filing on this page is 2026 Q1, when ADAGE CAPITAL PARTNERS GP, L.L.C. reported 1,762,799 shares, equal to 0.05% of portfolio, with an estimated market value of $33.9M.

What does the chart on this JCAP ownership page compare?

The chart compares ADAGE CAPITAL PARTNERS GP, L.L.C.'s quarterly JCAP 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 ADAGE CAPITAL PARTNERS GP, L.L.C. time their JCAP position?

Based on 13F filing dates vs. subsequent JCAP price moves, ADAGE CAPITAL PARTNERS GP, L.L.C. correctly timed 1 out of 3 reported position changes (33%). The annualised alpha on JCAP relative to SPY over the holding period was -19.5%.

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