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Driehaus Capital Management’s Byrna Technologies BYRN Stock Holding History

Driehaus Capital Management’s Portfolio BYRN Stock Details BYRN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-474,169
Closed -$10.5M – 414
2025
Q3 		$10.5M Sell
474,169
-143,783
-23% -$3.19M 0.08% 273
2025
Q2 		$19.1M Buy
617,952
+168,104
+37% +$4.11M 0.15% 184
2025
Q1 		$7.58M Buy
449,848
+126,894
+39% +$3.28M 0.07% 276
2024
Q4 		$9.3M Buy
+322,954
New +$6.33M 0.08% 259
2021
Q4 		– Sell
-403,695
Closed -$8.82M – 381
2021
Q3 		$8.82M Buy
+403,695
New +$9.99M 0.1% 250

Other funds holding BYRN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
PA
Pinnacle Associates New York $9.16B AUM 63.5% 1-Year Est. Return
ACH
ArrowMark Colorado Holdings Denver, Colorado $2.4B AUM 42.85% 1-Year Est. Return

Driehaus Capital Management's BYRN Position: Q4 2025 in Review

Driehaus Capital Management sold out of Byrna Technologies (BYRN) in Q4 2025, closing a stake of 474,169 shares — an estimated $10.5M sold.

Driehaus Capital Management first reported a position in BYRN in Q3 2021 and held it in 5 quarters. The position peaked at $19.1M in Q2 2025. 128 funds tracked by Wall St. Rank hold BYRN as of Q4 2025.

  • Driehaus Capital Management reported no remaining Byrna Technologies position as of Q4 2025 after selling out during the quarter.
  • Driehaus Capital Management sold 474,169 Byrna Technologies shares in Q4 2025, an estimated $10.5M.
  • Driehaus Capital Management first reported a position in Byrna Technologies in Q3 2021 and held it in 5 quarters.
  • Driehaus Capital Management's Byrna Technologies position peaked at $19.1M in Q2 2025.
  • 128 funds tracked by Wall St. Rank held Byrna Technologies as of Q4 2025.

Based on Driehaus Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.