BIIB β€” BIOGEN INC

Ownership history in Planning Capital Management Corp  Β·  3 quarters on record

AI Ownership Summary

Planning Capital Management Corp reported BIOGEN INC (BIIB) in 3 quarterly 13F filings from 2023 Q4 through 2024 Q2. Peak portfolio weight reached 0.01% in 2023 Q4. The latest visible filing shows BIIB at 0.00% 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.

What this BIIB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Planning Capital Management Corp's position in BIOGEN 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
2024 Q2

BIIB was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.01% in 2023 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 2024 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.

How Planning Capital Management Corp held BIIB β€” position size vs. price
% of Fund (quarterly)    BIIB price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 3 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2024 Q2 UNCHANGED 11 β€” 0% 0.00% $3K 2024-08-12 $201.04
2024 Q1 REDUCED 11 -25 -69.4% 0.00% $2K 2024-04-26 $208.90
2023 Q4 INITIATED 36 β€” β€” 0.01% $9K 2024-02-14 $220.74

🏒 Other funds also holding BIIB

As of 2026 Q1 β€” sorted by position size

Bangor Savings Bank 3Y 7Y 0.0%

FAQ About Planning Capital Management Corp and BIIB

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

How long has Planning Capital Management Corp reported owning BIIB?

Planning Capital Management Corp reported BIIB across 3 quarterly 13F filings, from 2023 Q4 through 2024 Q2.

What was the largest reported BIIB position in Planning Capital Management Corp's portfolio?

The largest reported portfolio weight for BIIB was 0.01% in 2023 Q4.

What is the latest reported BIIB position on this page?

The most recent filing on this page is 2024 Q2, when Planning Capital Management Corp reported 11 shares, equal to 0.00% of portfolio, with an estimated market value of $3K.

What does the chart on this BIIB ownership page compare?

The chart compares Planning Capital Management Corp'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.

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