Loomis, Sayles & Company’s Glaukos GKOS Stock Holding History

Loomis, Sayles & Company’s Portfolio GKOS Stock Details GKOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$65.6M	Buy	469,388 +48,148	+11%	+$6.09M	0.08%	90
2026 Q1	$45.4M	Sell	421,240 -26,565	-6%	-$2.99M	0.06%	109
2025 Q4	$50.6M	Buy	447,805 +376	+0.1%	+$35.9K	0.06%	106
2025 Q3	$36.5M	Sell	447,429 -146,183	-25%	-$13.4M	0.04%	148
2025 Q2	$61.3M	Sell	593,612 -46,538	-7%	-$4.37M	0.08%	90
2025 Q1	$63M	Sell	640,150 -13,922	-2%	-$1.86M	0.09%	85
2024 Q4	$98.1M	Sell	654,072 -19,679	-3%	-$2.71M	0.12%	68
2024 Q3	$87.8M	Buy	673,751 +119,527	+22%	+$14.9M	0.12%	76
2024 Q2	$65.6M	Buy	554,224 +129,500	+30%	+$13.7M	0.09%	88
2024 Q1	$40M	Sell	424,724 -11,533	-3%	-$1.03M	0.06%	159
2023 Q4	$34.7M	Buy	+436,257	New	+$29.7M	0.05%	172

Other funds holding GKOS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Holocene Advisors New York $44.4B AUM 57.89% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Loomis, Sayles & Company's GKOS Position: Q2 2026 in Review

Loomis, Sayles & Company increased its Glaukos (GKOS) stake by 11% in Q2 2026, buying an estimated $6.09M and bringing the position to 469,388 shares worth $65.6M. The position accounts for 0.08% of the portfolio, ranked #90.

Loomis, Sayles & Company first reported a position in GKOS in Q4 2023 and has held it in 11 quarters since. The position peaked at $98.1M in Q4 2024. 367 funds tracked by Wall St. Rank hold GKOS as of Q2 2026.

Loomis, Sayles & Company held 469,388 shares of Glaukos worth $65.6M as of Q2 2026.
Loomis, Sayles & Company bought 48,148 Glaukos shares in Q2 2026, an estimated $6.09M.
Glaukos made up 0.08% of Loomis, Sayles & Company's portfolio in Q2 2026, its #90 holding.
Loomis, Sayles & Company first reported a position in Glaukos in Q4 2023 and has held it in 11 quarters since.
Loomis, Sayles & Company's Glaukos position peaked at $98.1M in Q4 2024.
367 funds tracked by Wall St. Rank held Glaukos as of Q2 2026.

Based on Loomis, Sayles & Company's 13F filing for Q2 2026, filed 14 Aug 2026.