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Osmosis Investment Management UK Ltd

Location
London, X0
Portfolio Value
Mid $2,155,115,534
Diversification
Diversified
Filing Date
Global Rank
#1,512 / 8,816 ▼ 553
Top Industry
Semiconductors 15.6%
Period ended 4 months ago
Filed Aug 13, 2026 · 2mo
3 quarters · since Dec 2025

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Unknown

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Diversified active
Top 10 weight 35.4%, 51.4 effective positions, active share 25.1% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Turnover unknown
It needs four straight quarters of measured turnover
Horizon
Short horizon
Value-weighted holding period 2.9 quarters (under 4)

Closest benchmark: the S&P 500 as of 2026-06-30, active share 25.1%; sector active share 17.1% against the combined 13F book's sector weights.

Over time 3 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

452 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
7.4%
−0.3 pts
Top 5
26.1%
−0.5 pts
Top 10
35.4%
+0.4 pts
HHI
194
Dec 2025 → Jun 2026 · range 194 – 231
Diversified−2

Portfolio Trend

3 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 37.0% $796,639,352
Financial Services 12.8% $275,854,920
Healthcare 11.5% $247,589,874
Consumer Cyclical 9.3% $201,106,024
Communication Services 9.3% $200,528,881
Industrials 7.1% $152,645,749
Consumer Defensive 3.9% $84,125,382
Basic Materials 3.3% $72,023,132
Real Estate 2.4% $52,768,803
Energy 1.7% $36,110,293
Utilities 1.6% $34,619,647
Unclassified 0.1% $1,103,477

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
452 tracked positions · $2,155,115,534 total · filing declares 452 positions · $2,154,868,043 · as of Jun 30, 2026
Showing 1–50 of 452 positions by value · page 1 of 10
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 452 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.