KOPN Kopin Corporation

NASDAQ
$4.34

Kopin Corporation (KOPN) 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.

Hedge fund breadth
+50.00
15 buyers / 5 sellers
STRONG BUYING
Funds compared
20
funds with comparable KOPN positions
17 current holders · 11 prior-quarter holders
Net share change
+4.45M
+6.70M added, -2.24M cut
Position activity
9 new 6 increased 2 reduced 3 exited

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
RENAISSANCE TECHNOLOGIES LLC Quant New +255.8K — $1.1M 0.0% 60
D. E. Shaw & Co., Inc. Quant New +74.8K — $335.3K 0.0% 58
Voloridge Investment Management Quant New +867.5K — $3.9M 0.0% 55
TWO SIGMA INVESTMENTS, LP Quant Increased +2.25M +4094.9% $10.1M 0.0% 55
MILLENNIUM MANAGEMENT LLC Increased +686.6K +495.3% $3.1M 0.0% 53
Polar Asset Management Partners Long/Short Sold Out -188.3K -100.0% $843.6K 0.0% 53
Trexquant Investment Quant New +543.0K — $2.4M 0.0% 53
Quadrature Capital Quant New +201.7K — $903.5K 0.0% 52
ExodusPoint Capital Management Long/Short Quant New +65.4K — $292.8K 0.0% 52
MARSHALL WACE, LLP Long/Short Increased +377.1K +614.2% $1.7M 0.0% 52

Most significant buyers

By move score, not size.

  • RENAISSANCE TECHNOLOGIES LLC New · +255.8K
  • D. E. Shaw & Co., Inc. New · +74.8K
  • Voloridge Investment Management New · +867.5K
  • TWO SIGMA INVESTMENTS, LP Increased · +2.25M
  • MILLENNIUM MANAGEMENT LLC Increased · +686.6K

Most significant sellers

By move score, not size.

  • Polar Asset Management Partners Sold Out · -188.3K
  • CenterBook Partners Sold Out · -1.45M
  • CITADEL ADVISORS LLC Reduced · -491.8K
  • Y-Intercept Sold Out · -32.6K
  • AQR Capital Management Reduced · -79.7K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
RENAISSANCE TECHNOLOGIES LLC 1 255.8K 0 +255.8K — 0.0% New 60
D. E. Shaw & Co., Inc. 1 74.8K 0 +74.8K — 0.0% New 58
Voloridge Investment Management 2 867.5K 0 +867.5K — 0.0% New 55
TWO SIGMA INVESTMENTS, LP 2 2.3M 54.9K +2.25M +4094.9% 0.0% Increased 55
MILLENNIUM MANAGEMENT LLC 2 825.2K 138.6K +686.6K +495.3% 0.0% Increased 53
Polar Asset Management Partners 3 0 188.3K -188.3K -100.0% 0.0% Sold Out 53
Trexquant Investment 3 543.0K 0 +543.0K — 0.0% New 53
Quadrature Capital 3 201.7K 0 +201.7K — 0.0% New 52
ExodusPoint Capital Management 3 65.4K 0 +65.4K — 0.0% New 52
MARSHALL WACE, LLP 2 438.5K 61.4K +377.1K +614.2% 0.0% Increased 52
Jain Global 3 29.4K 0 +29.4K — 0.0% New 52
CenterBook Partners 4 0 1.5M -1.45M -100.0% 0.0% Sold Out 51
Walleye Capital 3 87.9K 0 +87.9K — 0.0% New 51
Squarepoint Ops LLC 2 1.5M 317.9K +1.17M +368.8% 0.0% Increased 51
CITADEL ADVISORS LLC 1 77.1K 568.8K -491.8K -86.5% 0.0% Reduced 50
Y-Intercept 4 0 32.6K -32.6K -100.0% 0.0% Sold Out 48
Aquatic Capital Management 4 72.1K 0 +72.1K — 0.0% New 48
Quantbot Technologies 4 8.8K 3.2K +5.6K +176.3% 0.0% Increased 39
AQR Capital Management 3 75.6K 155.3K -79.7K -51.3% 0.0% Reduced 32
Caption Management 3 82.0K 73.0K +8.9K +12.2% 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 subscribe

Hedge 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.