PEAK6 Investments LLC ARM — ARM HOLDINGS PLC

Ownership history in PEAK6 Investments LLC  ·  12 quarters on record

AI Ownership Summary

PEAK6 Investments LLC reported ARM HOLDINGS PLC (ARM) in 12 quarterly 13F filings from 2023 Q4 through 2024 Q3. Peak portfolio weight reached 0.63% in 2024 Q2. The latest visible filing shows ARM at 0.62% 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 ARM ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was PEAK6 Investments LLC's position in ARM HOLDINGS PLC, 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
2024 Q3

ARM was reported at 0.62% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.63% 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
2023 Q4 to 2024 Q3

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.

ARM stock page PEAK6 Investments LLC fund profile PEAK6 Investments LLC full holdings
How PEAK6 Investments LLC held ARM — position size vs. price
% of Fund (quarterly)    ARM price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 11 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2024 Q3 ADDED — — — 1,934,900 +1,528,105 +375.6% 0.62% $276.7M 2024-11-14 (Est.) $136.35
2024 Q3 REDUCED 62.7% -12.0% ✅ 406,795 -684,305 -62.7% 0.13% $58.2M 2024-11-14 (Est.) $136.35
2024 Q3 ADDED — — — 1,091,100 +955,535 +704.9% 0.35% $156.0M 2024-11-14 (Est.) $136.35
2024 Q2 REDUCED 83.6% -12.6% ✅ 135,565 -691,735 -83.6% 0.06% $22.2M 2024-08-14 $125.92
2024 Q2 REDUCED 44.0% -12.6% ✅ 827,300 -649,000 -44.0% 0.35% $135.4M 2024-08-14 $125.92
2024 Q2 ADDED — — — 1,476,300 +538,700 +57.5% 0.63% $241.6M 2024-08-14 $125.92
2024 Q1 REDUCED 11.7% +27.1% ❌ 937,600 -123,800 -11.7% 0.31% $117.2M 2024-05-14 $116.65
2024 Q1 ADDED — — — 1,061,400 +795,673 +299.4% 0.35% $132.7M 2024-05-14 $116.65
2024 Q1 ADDED — — — 265,727 +244,727 +1165.4% 0.09% $33.2M 2024-05-14 $116.65
2023 Q4 REDUCED 59.8% +68.9% ❌ 21,000 -31,200 -59.8% 0.01% $1.6M 2024-02-13 $119.98
2023 Q4 ADDED — — — 52,200 +41,590 +392.0% 0.01% $3.9M 2024-02-13 $119.98
1 older quarter hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ARM

As of 2026 Q1 — sorted by position size

Tensor Edge Capital, LLC 7.53% TRAN CAPITAL MANAGEMENT, L.P. 3Y 7Y 5.67% Defender Capital, LLC. 3Y 5.31% Robocap Asset Management Ltd 4.62% DOCK STREET ASSET MANAGEMENT INC 3Y 7Y 3.42% Gunderson Capital Management LLC 3Y 2.85% Westend Capital Management, LLC 3Y 7Y 2.44% Haven Capital Group, Inc. 2.42% Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. 3Y 7Y 2.25% WILLNER & HELLER, LLC 3Y 1.4%

FAQ About PEAK6 Investments LLC and ARM

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

How long has PEAK6 Investments LLC reported owning ARM?

PEAK6 Investments LLC reported ARM across 11 quarterly 13F filings, from 2023 Q4 through 2024 Q3.

What was the largest reported ARM position in PEAK6 Investments LLC's portfolio?

The largest reported portfolio weight for ARM was 0.63% in 2024 Q2.

What is the latest reported ARM position on this page?

The most recent filing on this page is 2024 Q3, when PEAK6 Investments LLC reported 1,934,900 shares, equal to 0.62% of portfolio, with an estimated market value of $276.7M.

What does the chart on this ARM ownership page compare?

The chart compares PEAK6 Investments LLC's quarterly ARM 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 PEAK6 Investments LLC time their ARM position?

Based on 13F filing dates vs. subsequent ARM price moves, PEAK6 Investments LLC correctly timed 4 out of 11 reported position changes (36%). The annualised alpha on ARM relative to SPY over the holding period was +92.5%.

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