TWO SIGMA SECURITIES, LLC FFIV — F5 NETWORKS INC

Ownership history in TWO SIGMA SECURITIES, LLC  ·  44 quarters on record

AI Ownership Summary

TWO SIGMA SECURITIES, LLC reported F5 NETWORKS INC (FFIV) in 44 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 0.34% in 2025 Q4. The latest visible filing shows FFIV at 0.34% 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 FFIV ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was TWO SIGMA SECURITIES, LLC's position in F5 NETWORKS 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

FFIV was reported at 0.34% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.34% in 2025 Q4

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

Time in book
Holding Window
2023 Q4 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.

FFIV stock page TWO SIGMA SECURITIES, LLC fund profile TWO SIGMA SECURITIES, LLC full holdings
How TWO SIGMA SECURITIES, LLC held FFIV — position size vs. price
% of Fund (quarterly)    FFIV 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)
2025 Q4 ADDED — — — 9,638 +7,680 +392.2% 0.34% $2.5M 2026-02-14 (Est.) $273.93
2025 Q3 ADDED — — — 1,958 +1,121 +133.9% 0.09% $633K 2025-11-14 $234.00
2025 Q1 REDUCED 90.2% +10.5% ❌ 837 -7,663 -90.2% 0.03% $223K 2025-05-15 $282.67
2024 Q3 ADDED — — — 8,500 +3,400 +66.7% 0.03% $1.9M 2024-11-14 $242.05
2024 Q3 ADDED — — — 5,100 +3,000 +142.9% 0.02% $1.1M 2024-11-14 $242.05
2024 Q2 ADDED — — — 2,100 +1,000 +90.9% 0.00% $362K 2024-08-14 $191.36
2024 Q1 REDUCED 78.0% -9.7% ✅ 1,100 -3,900 -78.0% 0.00% $209K 2024-05-15 $175.05
2023 Q4 ADDED — — — 5,000 +1,200 +31.6% 0.01% $895K 2024-02-14 $184.26
2023 Q4 ADDED — — — 3,800 +2,080 +120.9% 0.01% $680K 2024-02-14 $184.26
2023 Q4 REDUCED 72.3% +6.1% ❌ 1,720 -4,480 -72.3% 0.00% $308K 2024-02-14 $184.26
34 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding FFIV

As of 2026 Q1 — sorted by position size

Cairn Investment Group, Inc. 3Y 2.2% MONARCH CAPITAL MANAGEMENT INC 3Y 7Y 1.02% Lipe & Dalton 3Y 7Y 0.73% Lifeworks Advisors, LLC 3Y 0.73% Cardinal Capital Management 3Y 7Y 0.72% TEALWOOD ASSET MANAGEMENT INC 3Y 7Y 0.71% LEUTHOLD GROUP, LLC 3Y 7Y 0.66% Linden Thomas Advisory Services, LLC 3Y 0.65% Addenda Capital Inc. 3Y 7Y 0.59% Eurizon SLJ Capital Ltd 0.57%

FAQ About TWO SIGMA SECURITIES, LLC and FFIV

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

How long has TWO SIGMA SECURITIES, LLC reported owning FFIV?

TWO SIGMA SECURITIES, LLC reported FFIV across 10 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported FFIV position in TWO SIGMA SECURITIES, LLC's portfolio?

The largest reported portfolio weight for FFIV was 0.34% in 2025 Q4.

What is the latest reported FFIV position on this page?

The most recent filing on this page is 2025 Q4, when TWO SIGMA SECURITIES, LLC reported 9,638 shares, equal to 0.34% of portfolio, with an estimated market value of $2.5M.

What does the chart on this FFIV ownership page compare?

The chart compares TWO SIGMA SECURITIES, LLC's quarterly FFIV 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 TWO SIGMA SECURITIES, LLC time their FFIV position?

Based on 13F filing dates vs. subsequent FFIV price moves, TWO SIGMA SECURITIES, LLC correctly timed 24 out of 42 reported position changes (57%). The annualised alpha on FFIV relative to SPY over the holding period was -7.9%.

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