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GW&K Investment Management’s Halozyme HALO Stock Holding History

GW&K Investment Management’s Portfolio HALO Stock Details HALO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$106M Sell
1,353,883
-39,992
-3% -$2.73M 0.83% 18
2026
Q1 		$90.1M Buy
1,393,875
+139,227
+11% +$9.81M 0.79% 26
2025
Q4 		$84.4M Sell
1,254,648
-7,069
-0.6% -$476K 0.73% 24
2025
Q3 		$92.5M Sell
1,261,717
-162,799
-11% -$10.8M 0.82% 18
2025
Q2 		$74.1M Sell
1,424,516
-40,375
-3% -$2.3M 0.66% 28
2025
Q1 		$93.5M Sell
1,464,891
-280,750
-16% -$16.3M 0.87% 17
2024
Q4 		$83.5M Sell
1,745,641
-16,620
-0.9% -$852K 0.71% 27
2024
Q3 		$101M Sell
1,762,261
-417,744
-19% -$23.9M 0.86% 14
2024
Q2 		$114M Sell
2,180,005
-16,872
-0.8% -$740K 1.04% 8
2024
Q1 		$89.4M Sell
2,196,877
-29,661
-1% -$1.11M 0.79% 21
2023
Q4 		$82.3M Sell
2,226,538
-117,767
-5% -$4.44M 0.77% 20
2023
Q3 		$89.6M Sell
2,344,305
-35,284
-1% -$1.45M 0.9% 10
2023
Q2 		$85.8M Sell
2,379,589
-22,526
-0.9% -$769K 0.81% 18
2023
Q1 		$91.7M Buy
2,402,115
+313,259
+15% +$14.7M 0.89% 14
2022
Q4 		$119M Sell
2,088,856
-114,186
-5% -$5.85M 1.21% 7
2022
Q3 		$87.1M Buy
2,203,042
+559,654
+34% +$24.7M 0.96% 13
2022
Q2 		$72.3M Sell
1,643,388
-10,471
-0.6% -$453K 0.78% 21
2022
Q1 		$66M Buy
1,653,859
+95,215
+6% +$3.39M 0.59% 47
2021
Q4 		$62.7M Buy
1,558,644
+59,875
+4% +$2.24M 0.52% 66
2021
Q3 		$61M Buy
1,498,769
+435,575
+41% +$18.2M 0.54% 57
2021
Q2 		$48.3M Buy
1,063,194
+1,964
+0.2% +$86.9K 0.42% 94
2021
Q1 		$44.2M Buy
1,061,230
+218,975
+26% +$10M 0.41% 101
2020
Q4 		$36M Buy
+842,255
New +$30.3M 0.38% 118

Other funds holding HALO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

GW&K Investment Management's HALO Position: Q2 2026 in Review

GW&K Investment Management reduced its Halozyme (HALO) stake by 2.9% in Q2 2026, selling an estimated $2.73M and leaving 1,353,883 shares worth $106M. The position accounts for 0.83% of the portfolio, ranked #18.

GW&K Investment Management first reported a position in HALO in Q4 2020 and has held it in 23 quarters since. The position peaked at $119M in Q4 2022. 672 funds tracked by Wall St. Rank hold HALO as of Q2 2026.

  • GW&K Investment Management held 1,353,883 shares of Halozyme worth $106M as of Q2 2026.
  • GW&K Investment Management sold 39,992 Halozyme shares in Q2 2026, an estimated $2.73M.
  • Halozyme made up 0.83% of GW&K Investment Management's portfolio in Q2 2026, its #18 holding.
  • GW&K Investment Management first reported a position in Halozyme in Q4 2020 and has held it in 23 quarters since.
  • GW&K Investment Management's Halozyme position peaked at $119M in Q4 2022.
  • 672 funds tracked by Wall St. Rank held Halozyme as of Q2 2026.

Based on GW&K Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.