SRZN Surrozen, Inc.
Surrozen, Inc. (SRZN) 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 |
|---|---|---|---|---|---|---|
| Baker Bros. Advisors Growth Healthcare | New | +833.3K | — | $21.6M | 0.0% | 65 |
| Point72 Asset Management, L.P. | New | +664.3K | — | $17.2M | 0.0% | 64 |
| Deerfield Management Growth Healthcare | New | +166.7K | — | $4.3M | 0.0% | 63 |
| Perceptive Advisors Growth Healthcare | Increased | +441.3K | +192.4% | $11.5M | 0.2% | 59 |
| CITADEL ADVISORS LLC Quant | Sold Out | -35.5K | -100.0% | $920.4K | 0.0% | 58 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -18.9K | -100.0% | $491.2K | 0.0% | 56 |
| Woodline Partners LP Long/Short | Sold Out | -227.8K | -100.0% | $5.9M | 0.0% | 56 |
| EcoR1 Capital Growth Healthcare | New | +4.4K | — | $115.3K | 0.0% | 55 |
| Qube Research & Technologies Ltd Quant | Sold Out | -14.5K | -100.0% | $376.7K | 0.0% | 55 |
| Wolverine Asset Management Event Quant | New | +3.1K | — | $80.1K | 0.0% | 54 |
Most significant buyers
By move score, not size.
- Baker Bros. Advisors
- Point72 Asset Management, L.P.
- Deerfield Management
- Perceptive Advisors
- EcoR1 Capital
Most significant sellers
By move score, not size.
- CITADEL ADVISORS LLC
- MARSHALL WACE, LLP
- Woodline Partners LP
- Qube Research & Technologies Ltd
- Hudson Bay Capital Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Baker Bros. Advisors | 1 | 833.3K | 0 | +833.3K | — | 0.0% | New | 65 |
| Point72 Asset Management, L.P. | 1 | 664.3K | 0 | +664.3K | — | 0.0% | New | 64 |
| Deerfield Management | 1 | 166.7K | 0 | +166.7K | — | 0.0% | New | 63 |
| Perceptive Advisors | 1 | 670.7K | 229.4K | +441.3K | +192.4% | 0.2% | Increased | 59 |
| CITADEL ADVISORS LLC | 1 | 0 | 35.5K | -35.5K | -100.0% | 0.0% | Sold Out | 58 |
| MARSHALL WACE, LLP | 2 | 0 | 18.9K | -18.9K | -100.0% | 0.0% | Sold Out | 56 |
| Woodline Partners LP | 2 | 0 | 227.8K | -227.8K | -100.0% | 0.0% | Sold Out | 56 |
| EcoR1 Capital | 2 | 4.4K | 0 | +4.4K | — | 0.0% | New | 55 |
| Qube Research & Technologies Ltd | 2 | 0 | 14.5K | -14.5K | -100.0% | 0.0% | Sold Out | 55 |
| Wolverine Asset Management | 2 | 3.1K | 0 | +3.1K | — | 0.0% | New | 54 |
| Hudson Bay Capital Management | 3 | 0 | 8.7K | -8.7K | -100.0% | 0.0% | Sold Out | 53 |
| ADAR1 Capital Management | 3 | 0 | 12.0K | -12.0K | -100.0% | 0.0% | Sold Out | 53 |
| Walleye Capital | 3 | 38.8K | 0 | +38.8K | — | 0.0% | New | 53 |
| Boothbay Fund Management | 4 | 0 | 47.3K | -47.3K | -100.0% | 0.0% | Sold Out | 51 |
| LMR Partners | 3 | 661.8K | 23.6K | +638.3K | +2709.5% | 0.0% | Increased | 51 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 12.4K | 49.1K | -36.8K | -74.8% | 0.0% | Reduced | 46 |
| TWO SIGMA INVESTMENTS, LP | 2 | 71.1K | 39.5K | +31.6K | +80.1% | 0.0% | Increased | 46 |
| Vestal Point Capital | 1 | 304.7K | 338.6K | -33.9K | -10.0% | 0.2% | Reduced | 31 |
| MILLENNIUM MANAGEMENT LLC | 2 | 683.1K | 731.1K | -48.1K | -6.6% | 0.0% | Reduced | 30 |
| Braidwell | 2 | 390.8K | 396.1K | -5.3K | -1.3% | 0.4% | Reduced | 28 |
| Balyasny Asset Management L.P. | 2 | 205.0K | 203.9K | +1.1K | +0.6% | 0.0% | Increased | 26 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 88.7K | 88.7K | 0 | +0.0% | 0.0% | Unchanged | 20 |
| Alyeska Investment Group, L.P. | 2 | 10.2K | 10.2K | 0 | +0.0% | 0.0% | Unchanged | 20 |
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.