NEEDHAM INVESTMENT MANAGEMENT LLC ROG — ROGERS CORP Common Stock

Ownership history in NEEDHAM INVESTMENT MANAGEMENT LLC  ·  22 quarters on record

AI Ownership Summary

NEEDHAM INVESTMENT MANAGEMENT LLC reported ROGERS CORP Common Stock (ROG) in 22 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.47% in 2024 Q3. The latest visible filing shows ROG at 0.32% 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 ROG ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was NEEDHAM INVESTMENT MANAGEMENT LLC's position in ROGERS CORP Common Stock, 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

ROG was reported at 0.32% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.47% in 2024 Q3

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 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.

ROG stock page NEEDHAM INVESTMENT MANAGEMENT LLC fund profile NEEDHAM INVESTMENT MANAGEMENT LLC full holdings
How NEEDHAM INVESTMENT MANAGEMENT LLC held ROG — position size vs. price
% of Fund (quarterly)    ROG 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 Q1 REDUCED — — — 58,000 -2,000 -3.3% 0.32% $6.2M 2026-05-15 $139.71
2025 Q4 UNCHANGED — — — 60,000 — 0% 0.35% $5.5M 2026-02-17 $103.13
2025 Q3 ADDED — — — 60,000 +5,000 +9.1% 0.34% $4.8M 2025-11-14 $78.35
2025 Q2 UNCHANGED — — — 55,000 — 0% 0.30% $3.8M 2025-08-14 $76.52
2025 Q1 REDUCED — — — 55,000 -2,500 -4.3% 0.35% $3.7M 2025-05-15 $69.77
2024 Q4 ADDED — — — 57,500 +3,000 +5.5% 0.45% $5.8M 2025-02-14 $89.34
2024 Q3 ADDED — — — 54,500 +14,500 +36.2% 0.47% $6.2M 2024-11-14 $104.01
2024 Q2 ADDED — — — 40,000 +10,000 +33.3% 0.40% $4.8M 2024-08-14 $103.46
2024 Q1 ADDED — — — 30,000 +10,000 +50.0% 0.33% $3.6M 2024-05-15 $121.14
2023 Q4 ADDED — — — 20,000 +16,000 +400.0% 0.33% $2.6M 2024-02-14 $116.14
12 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ROG

As of 2026 Q1 — sorted by position size

ACK Asset Management LLC 3Y 7Y 6.36% UG Investment Advisers Ltd. 3Y 7Y 3.88% THIRD AVENUE MANAGEMENT LLC 3Y 7Y 2.63% Clearline Capital LP 3Y 7Y 2.61% Starboard Value LP 3Y 7Y 1.37% SMA Capital LLC 1.17% WESTPORT ASSET MANAGEMENT INC 3Y 7Y 0.97% Leeward Investments, LLC - MA 3Y 0.73% Arosa Capital Management LP 3Y 7Y 0.71% ODDO BHF ASSET MANAGEMENT SAS 0.66%

FAQ About NEEDHAM INVESTMENT MANAGEMENT LLC and ROG

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

How long has NEEDHAM INVESTMENT MANAGEMENT LLC reported owning ROG?

NEEDHAM INVESTMENT MANAGEMENT LLC reported ROG across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported ROG position in NEEDHAM INVESTMENT MANAGEMENT LLC's portfolio?

The largest reported portfolio weight for ROG was 0.47% in 2024 Q3.

What is the latest reported ROG position on this page?

The most recent filing on this page is 2026 Q1, when NEEDHAM INVESTMENT MANAGEMENT LLC reported 58,000 shares, equal to 0.32% of portfolio, with an estimated market value of $6.2M.

What does the chart on this ROG ownership page compare?

The chart compares NEEDHAM INVESTMENT MANAGEMENT LLC's quarterly ROG 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 NEEDHAM INVESTMENT MANAGEMENT LLC time their ROG position?

Based on 13F filing dates vs. subsequent ROG price moves, NEEDHAM INVESTMENT MANAGEMENT LLC correctly timed 7 out of 16 reported position changes (44%). The annualised alpha on ROG relative to SPY over the holding period was -0.7%.

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