BYRN Byrna Technologies Inc.
Byrna Technologies Inc. (BYRN) 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 |
|---|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. Quant | New | +226.7K | — | $1.5M | 0.0% | 60 |
| Maverick Capital Long/Short Growth | Sold Out | -18.4K | -100.0% | $123.7K | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -141.6K | -100.0% | $950.1K | 0.0% | 56 |
| CITADEL ADVISORS LLC Quant | Increased | +496.3K | +1485.0% | $3.3M | 0.0% | 54 |
| Tudor Investment Corporation Macro | New | +140.7K | — | $944.1K | 0.0% | 54 |
| Walleye Capital Long/Short Quant | New | +266.3K | — | $1.8M | 0.0% | 53 |
| Jain Global Long/Short Quant | New | +87.1K | — | $584.6K | 0.0% | 52 |
| Engineers Gate Quant | New | +15.8K | — | $106.3K | 0.0% | 48 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -749.3K | -69.7% | $5.0M | 0.0% | 46 |
| Quinn Opportunity Partners Event | Increased | +254.4K | +113.5% | $1.7M | 0.2% | 46 |
Most significant buyers
By move score, not size.
- D. E. Shaw & Co., Inc.
- CITADEL ADVISORS LLC
- Tudor Investment Corporation
- Walleye Capital
- Jain Global
Most significant sellers
By move score, not size.
- Maverick Capital
- MARSHALL WACE, LLP
- MILLENNIUM MANAGEMENT LLC
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 1 | 226.7K | 0 | +226.7K | — | 0.0% | New | 60 |
| Maverick Capital | 2 | 0 | 18.4K | -18.4K | -100.0% | 0.0% | Sold Out | 57 |
| MARSHALL WACE, LLP | 2 | 0 | 141.6K | -141.6K | -100.0% | 0.0% | Sold Out | 56 |
| CITADEL ADVISORS LLC | 1 | 529.7K | 33.4K | +496.3K | +1485.0% | 0.0% | Increased | 54 |
| Tudor Investment Corporation | 2 | 140.7K | 0 | +140.7K | — | 0.0% | New | 54 |
| Walleye Capital | 3 | 266.3K | 0 | +266.3K | — | 0.0% | New | 53 |
| Jain Global | 3 | 87.1K | 0 | +87.1K | — | 0.0% | New | 52 |
| Engineers Gate | 4 | 15.8K | 0 | +15.8K | — | 0.0% | New | 48 |
| MILLENNIUM MANAGEMENT LLC | 2 | 325.6K | 1.1M | -749.3K | -69.7% | 0.0% | Reduced | 46 |
| Quinn Opportunity Partners | 4 | 478.6K | 224.2K | +254.4K | +113.5% | 0.2% | Increased | 46 |
| AQR Capital Management | 3 | 116.7K | 30.7K | +86.0K | +280.4% | 0.0% | Increased | 45 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 429.8K | 382.3K | +47.5K | +12.4% | 0.0% | Increased | 30 |
| Trexquant Investment | 3 | 45.9K | 36.7K | +9.2K | +24.9% | 0.0% | Increased | 26 |
| Squarepoint Ops LLC | 2 | 51.7K | 47.4K | +4.3K | +9.0% | 0.0% | Increased | 26 |
| Schonfeld Strategic Advisors | 3 | 15.9K | 14.6K | +1.3K | +8.8% | 0.0% | Increased | 22 |
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.