Assenagon Asset Management S.A. BLDR — BUILDERS FIRSTSOURCE INC

Ownership history in Assenagon Asset Management S.A.  ·  25 quarters on record

AI Ownership Summary

Assenagon Asset Management S.A. reported BUILDERS FIRSTSOURCE INC (BLDR) in 25 quarterly 13F filings from 2024 Q1 through 2026 Q2. Peak portfolio weight reached 0.11% in 2024 Q2. The latest visible filing shows BLDR at 0.01% 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 BLDR 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 BUILDERS FIRSTSOURCE 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

BLDR was reported at 0.01% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.11% 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 Q1 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.

BLDR stock page Assenagon Asset Management S.A. fund profile Assenagon Asset Management S.A. full holdings
How Assenagon Asset Management S.A. held BLDR — position size vs. price
% of Fund (quarterly)    BLDR price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 ADDED — — — 96,157 +88,580 +1169.1% 0.01% $8.6M 2026-07-08 $74.21
2026 Q1 REDUCED 21.4% +9.9% ❌ 7,577 -2,069 -21.4% 0.00% $624K 2026-04-20 $91.32
2025 Q4 ADDED — — — 9,646 +168 +1.8% 0.00% $992K 2026-01-09 $124.66
2025 Q3 REDUCED 44.0% -14.7% ✅ 9,478 -7,452 -44.0% 0.00% $1.1M 2025-10-07 $126.88
2025 Q2 REDUCED 47.7% +2.5% ❌ 16,930 -15,443 -47.7% 0.00% $2.0M 2025-07-11 $133.28
2025 Q1 REDUCED 83.5% -6.6% ✅ 32,373 -163,285 -83.5% 0.01% $4.0M 2025-04-15 $118.22
2024 Q4 ADDED — — — 195,658 +132,913 +211.8% 0.05% $28.0M 2025-01-14 $154.25
2024 Q3 REDUCED 81.8% -26.0% ✅ 62,745 -282,771 -81.8% 0.02% $12.2M 2024-10-23 $179.22
2024 Q2 ADDED — — — 345,516 +170,989 +98.0% 0.11% $47.8M 2024-07-18 $158.94
2024 Q1 REDUCED 32.8% -35.8% ✅ 174,527 -85,255 -32.8% 0.09% $36.4M 2024-04-24 $186.69
15 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BLDR

As of 2026 Q2 — sorted by position size

Wisconsin Wealth Advisors, LLC 0.52% Polianta Ltd 3Y 7Y 0.25% TT International Asset Management LTD 3Y 0.08% Financial Enhancement Group LLC 3Y 7Y 0.08% JGP Wealth Management, LLC 3Y 7Y 0.02% Czech National Bank 3Y 0.01% Gradient Investments LLC 3Y 7Y 0.01% GAMMA Investing LLC 0.01% CX Institutional 3Y 7Y 0.01% THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. 0.01%

FAQ About Assenagon Asset Management S.A. and BLDR

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 BLDR?

Assenagon Asset Management S.A. reported BLDR across 10 quarterly 13F filings, from 2024 Q1 through 2026 Q2.

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

The largest reported portfolio weight for BLDR was 0.11% in 2024 Q2.

What is the latest reported BLDR position on this page?

The most recent filing on this page is 2026 Q2, when Assenagon Asset Management S.A. reported 96,157 shares, equal to 0.01% of portfolio, with an estimated market value of $8.6M.

What does the chart on this BLDR ownership page compare?

The chart compares Assenagon Asset Management S.A.'s quarterly BLDR 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 BLDR position?

Based on 13F filing dates vs. subsequent BLDR price moves, Assenagon Asset Management S.A. correctly timed 11 out of 23 reported position changes (48%). The annualised alpha on BLDR relative to SPY over the holding period was -6.5%.

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