ORACLE INVESTMENT MANAGEMENT INC BIIB — BIOGEN IDEC INC COMMON

Ownership history in ORACLE INVESTMENT MANAGEMENT INC  ·  86 quarters on record

AI Ownership Summary

ORACLE INVESTMENT MANAGEMENT INC reported BIOGEN IDEC INC COMMON (BIIB) in 86 quarterly 13F filings from 2024 Q1 through 2025 Q4. Peak portfolio weight reached 0.52% in 2024 Q2. The latest visible filing shows BIIB at 0.25% 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 BIIB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ORACLE INVESTMENT MANAGEMENT INC's position in BIOGEN IDEC INC COMMON, 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

BIIB was reported at 0.25% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.52% 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 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.

BIIB stock page ORACLE INVESTMENT MANAGEMENT INC fund profile ORACLE INVESTMENT MANAGEMENT INC full holdings
How ORACLE INVESTMENT MANAGEMENT INC held BIIB — position size vs. price
% of Fund (quarterly)    BIIB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED — — — 2,412 — 0% 0.25% $424K 2026-02-14 (Est.) $196.52
2025 Q3 UNCHANGED — — — 2,412 — 0% 0.21% $338K 2025-11-19 $167.93
2025 Q2 UNCHANGED — — — 2,412 — 0% 0.21% $303K 2025-08-15 $138.60
2025 Q1 UNCHANGED — — — 2,412 — 0% 0.17% $330K 2025-05-15 $123.70
2024 Q4 UNCHANGED — — — 2,412 — 0% 0.20% $369K 2025-02-14 $137.33
2024 Q3 UNCHANGED — — — 2,412 — 0% 0.28% $468K 2024-11-14 $164.89
2024 Q2 UNCHANGED — — — 2,412 — 0% 0.52% $559K 2024-08-14 $200.59
2024 Q1 UNCHANGED — — — 2,412 — 0% 0.35% $520K 2024-05-15 $235.32
78 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BIIB

As of 2026 Q2 — sorted by position size

Atle Fund Management AB 3Y 7Y 3.65% MH & ASSOCIATES SECURITIES MANAGEMENT CORP /ADV 3.42% Old North State Wealth Management, LLC 2.28% CONTRAVISORY INVESTMENT MANAGEMENT, INC. 3Y 7Y 1.69% THOR INVESTMENT MANAGEMENT INC /OH/ /ADV 1.58% North Growth Management Ltd. 3Y 7Y 1.39% Artemis Investment Management LLP 3Y 7Y 1.1% Elevated Private Wealth, LLC 1.07% GUARDIAN INVESTMENT MANAGEMENT 3Y 7Y 0.77% Cairn Investment Group, Inc. 3Y 0.77%

FAQ About ORACLE INVESTMENT MANAGEMENT INC and BIIB

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

How long has ORACLE INVESTMENT MANAGEMENT INC reported owning BIIB?

ORACLE INVESTMENT MANAGEMENT INC reported BIIB across 8 quarterly 13F filings, from 2024 Q1 through 2025 Q4.

What was the largest reported BIIB position in ORACLE INVESTMENT MANAGEMENT INC's portfolio?

The largest reported portfolio weight for BIIB was 0.52% in 2024 Q2.

What is the latest reported BIIB position on this page?

The most recent filing on this page is 2025 Q4, when ORACLE INVESTMENT MANAGEMENT INC reported 2,412 shares, equal to 0.25% of portfolio, with an estimated market value of $424K.

What does the chart on this BIIB ownership page compare?

The chart compares ORACLE INVESTMENT MANAGEMENT INC's quarterly BIIB 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 ORACLE INVESTMENT MANAGEMENT INC time their BIIB position?

Based on 13F filing dates vs. subsequent BIIB price moves, ORACLE INVESTMENT MANAGEMENT INC correctly timed 18 out of 34 reported position changes (53%). The annualised alpha on BIIB relative to SPY over the holding period was -4.3%.

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