Assenagon Asset Management S.A. RBRK — RUBRIK INC.

Ownership history in Assenagon Asset Management S.A.  ·  5 quarters on record

AI Ownership Summary

Assenagon Asset Management S.A. reported RUBRIK INC. (RBRK) in 5 quarterly 13F filings from 2025 Q2 through 2026 Q2. Peak portfolio weight reached 0.09% in 2025 Q3. The latest visible filing shows RBRK at 0.03% 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 RBRK ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Assenagon Asset Management S.A.'s position in RUBRIK 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 Q2

RBRK was reported at 0.03% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.09% in 2025 Q3

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 Q2

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.

RBRK stock page Assenagon Asset Management S.A. fund profile Assenagon Asset Management S.A. full holdings
How Assenagon Asset Management S.A. held RBRK — position size vs. price
% of Fund (quarterly)    RBRK 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 Q2 ADDED — — — 280,448 +28,056 +11.1% 0.03% $22.5M 2026-07-08 $84.40
2026 Q1 REDUCED 60.7% +56.3% ❌ 252,392 -389,820 -60.7% 0.02% $12.4M 2026-04-20 $53.60
2025 Q4 REDUCED 15.4% -36.0% ✅ 642,212 -117,051 -15.4% 0.07% $49.1M 2026-01-09 $70.56
2025 Q3 ADDED — — — 759,263 +198,133 +35.3% 0.09% $62.4M 2025-10-07 $79.50
2025 Q2 INITIATED — — — 561,130 — — 0.07% $50.3M 2025-07-11 $84.54

🏢 Other funds also holding RBRK

As of 2026 Q2 — sorted by position size

FNY Investment Advisers, LLC 3Y 7Y 0.28% CONGRESS ASSET MANAGEMENT CO 3Y 7Y 0.27% PVG ASSET MANAGEMENT CORP 3Y 7Y 0.14% Balefire, LLC 3Y 7Y 0.06% Noble Wealth Management PBC 0.04% Gradient Investments LLC 3Y 7Y 0.03% Avior Wealth Management, LLC 3Y 7Y 0.01% Versant Capital Management, Inc 3Y 7Y 0.01% GAMMA Investing LLC 0.01% CX Institutional 3Y 7Y 0.0%

FAQ About Assenagon Asset Management S.A. and RBRK

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

How long has Assenagon Asset Management S.A. reported owning RBRK?

Assenagon Asset Management S.A. reported RBRK across 5 quarterly 13F filings, from 2025 Q2 through 2026 Q2.

What was the largest reported RBRK position in Assenagon Asset Management S.A.'s portfolio?

The largest reported portfolio weight for RBRK was 0.09% in 2025 Q3.

What is the latest reported RBRK position on this page?

The most recent filing on this page is 2026 Q2, when Assenagon Asset Management S.A. reported 280,448 shares, equal to 0.03% of portfolio, with an estimated market value of $22.5M.

What does the chart on this RBRK ownership page compare?

The chart compares Assenagon Asset Management S.A.'s quarterly RBRK 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 Assenagon Asset Management S.A. time their RBRK position?

Based on 13F filing dates vs. subsequent RBRK price moves, Assenagon Asset Management S.A. correctly timed 1 out of 4 reported position changes (25%). The annualised alpha on RBRK relative to SPY over the holding period was -18.2%.

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