BLFS BioLife Solutions, Inc.
BioLife Solutions, Inc. (BLFS) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | New | +625.7K | — | $17.7M | 0.0% | 61 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Sold Out | -207.1K | -100.0% | $5.8M | 0.0% | 60 |
| Point72 Asset Management, L.P. | New | +35.0K | — | $988.9K | 0.0% | 59 |
| Squarepoint Ops LLC Quant | New | +132.9K | — | $3.8M | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | New | +23.7K | — | $669.1K | 0.0% | 56 |
| Verition Fund Management Event Long/Short | New | +69.3K | — | $2.0M | 0.0% | 56 |
| TIG Advisors Event | New | +53.6K | — | $1.5M | 0.1% | 56 |
| ExodusPoint Capital Management Long/Short Quant | New | +76.1K | — | $2.1M | 0.0% | 54 |
| Weiss Asset Management Event Quant | New | +25.4K | — | $718.6K | 0.0% | 54 |
| CenterBook Partners Long/Short Quant | New | +53.8K | — | $1.5M | 0.1% | 51 |
Most significant buyers
By move score, not size.
- MILLENNIUM MANAGEMENT LLC
- Point72 Asset Management, L.P.
- Squarepoint Ops LLC
- MARSHALL WACE, LLP
- Verition Fund Management
Most significant sellers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- D. E. Shaw & Co., Inc.
- Aquatic Capital Management
- CITADEL ADVISORS LLC
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | 2 | 625.7K | 0 | +625.7K | — | 0.0% | New | 61 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 0 | 207.1K | -207.1K | -100.0% | 0.0% | Sold Out | 60 |
| Point72 Asset Management, L.P. | 1 | 35.0K | 0 | +35.0K | — | 0.0% | New | 59 |
| Squarepoint Ops LLC | 2 | 132.9K | 0 | +132.9K | — | 0.0% | New | 57 |
| MARSHALL WACE, LLP | 2 | 23.7K | 0 | +23.7K | — | 0.0% | New | 56 |
| Verition Fund Management | 2 | 69.3K | 0 | +69.3K | — | 0.0% | New | 56 |
| TIG Advisors | 3 | 53.6K | 0 | +53.6K | — | 0.1% | New | 56 |
| ExodusPoint Capital Management | 3 | 76.1K | 0 | +76.1K | — | 0.0% | New | 54 |
| Weiss Asset Management | 2 | 25.4K | 0 | +25.4K | — | 0.0% | New | 54 |
| CenterBook Partners | 4 | 53.8K | 0 | +53.8K | — | 0.1% | New | 51 |
| D. E. Shaw & Co., Inc. | 1 | 12.3K | 101.9K | -89.5K | -87.9% | 0.0% | Reduced | 51 |
| AQR Capital Management | 3 | 15.7K | 0 | +15.7K | — | 0.0% | New | 51 |
| Boothbay Fund Management | 4 | 8.4K | 0 | +8.4K | — | 0.0% | New | 49 |
| Winton Group | 4 | 7.1K | 0 | +7.1K | — | 0.0% | New | 48 |
| Aquatic Capital Management | 4 | 0 | 638 | -638 | -100.0% | 0.0% | Sold Out | 48 |
| Man Group | 3 | 145.5K | 72.6K | +72.9K | +100.3% | 0.0% | Increased | 48 |
| Engineers Gate | 4 | 15.0K | 0 | +15.0K | — | 0.0% | New | 48 |
| CITADEL ADVISORS LLC | 1 | 157.9K | 244.2K | -86.2K | -35.3% | 0.0% | Reduced | 38 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.