Gilder Gagnon Howe & CO LLC Glaukos Corp Transaction History

Gilder Gagnon Howe & CO LLC

$8.39 Billion
Q2 2025

A detailed history of Gilder Gagnon Howe & CO LLC transactions in Glaukos Corp stock. As of the latest transaction made, Gilder Gagnon Howe & CO LLC holds 700,634 shares of GKOS stock, worth $63 Million. This represents 0.86% of its overall portfolio holdings.

Number of Shares

700,634

Previous 836,529 16.25%

Holding current value

$63 Million

Previous $82.3 Million 12.1%

% of portfolio

0.86%

Previous 1.17%

29 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$82.27 - $103.29 $11.2 Million - $14 Million	-135,895 Reduced 16.25%	700,634 $72.4 Million
Q1 2025 May 15, 2025	BUY	$96.6 - $161.22 $1.09 Million - $1.81 Million	11,253 Added 1.36%	836,529 $82.3 Million
Q4 2024 Feb 14, 2025	BUY	$126.42 - $152.67 $21.1 Million - $25.4 Million	166,677 Added 25.31%	825,276 $124 Million
Q3 2024 Nov 14, 2024	BUY	$113.62 - $135.39 $2.8 Million - $3.34 Million	24,661 Added 3.89%	658,599 $85.8 Million
Q2 2024 Aug 14, 2024	BUY	$89.48 - $118.35 $20.6 Million - $27.3 Million	230,630 Added 57.18%	633,938 $75 Million
Q1 2024 May 15, 2024	BUY	$76.4 - $96.33 $24.1 Million - $30.4 Million	315,847 Added 361.13%	403,308 $38 Million
Q4 2023 Feb 14, 2024	BUY	$59.53 - $85.11 $1.06 Million - $1.51 Million	17,773 Added 25.5%	87,461 $6.95 Million
Q3 2023 Nov 14, 2023	SELL	$69.23 - $79.09 $39,184 - $44,764	-566 Reduced 0.81%	69,688 $5.24 Million
Q2 2023 Aug 14, 2023	BUY	$45.44 - $71.21 $256,145 - $401,410	5,637 Added 8.72%	70,254 $5 Million
Q1 2023 May 15, 2023	BUY	$43.88 - $52.48 $13,734 - $16,426	313 Added 0.49%	64,617 $3.24 Million
Q4 2022 Feb 14, 2023	BUY	$40.82 - $57.75 $2.62 Million - $3.71 Million	64,304 New	64,304 $2.81 Million
Q4 2021 Feb 14, 2022	SELL	$40.27 - $56.99 $29.7 Million - $42.1 Million	-738,293 Closed	0 $0
Q3 2021 Nov 15, 2021	SELL	$47.43 - $84.23 $4.7 Million - $8.35 Million	-99,156 Reduced 11.84%	738,293 $35.6 Million
Q2 2021 Aug 16, 2021	SELL	$73.06 - $97.7 $506,305 - $677,061	-6,930 Reduced 0.82%	837,449 $71 Million
Q1 2021 May 17, 2021	SELL	$70.43 - $97.42 $2.35 Million - $3.25 Million	-33,344 Reduced 3.8%	844,379 $70.9 Million
Q4 2020 Feb 16, 2021	SELL	$48.9 - $75.26 $207,776 - $319,779	-4,249 Reduced 0.48%	877,723 $66.1 Million
Q3 2020 Nov 16, 2020	SELL	$37.23 - $50.97 $600,222 - $821,738	-16,122 Reduced 1.8%	881,972 $43.7 Million
Q2 2020 Aug 14, 2020	SELL	$28.78 - $46.83 $1.05 Million - $1.7 Million	-36,319 Reduced 3.89%	898,094 $34.5 Million
Q1 2020 May 15, 2020	SELL	$25.53 - $70.14 $12.4 Million - $34.1 Million	-485,867 Reduced 34.21%	934,413 $28.8 Million
Q4 2019 Feb 14, 2020	SELL	$54.18 - $65.64 $995,394 - $1.21 Million	-18,372 Reduced 1.28%	1,420,280 $77.4 Million
Q3 2019 Nov 14, 2019	SELL	$58.58 - $83.91 $193,724 - $277,490	-3,307 Reduced 0.23%	1,438,652 $89.9 Million
Q2 2019 Aug 13, 2019	BUY	$63.59 - $78.71 $12.5 Million - $15.4 Million	195,906 Added 15.72%	1,441,959 $109 Million
Q1 2019 May 17, 2019	SELL	$50.75 - $80.54 $902,538 - $1.43 Million	-17,784 Reduced 1.41%	1,246,053 $97.7 Million
Q4 2018 Feb 14, 2019	SELL	$52.18 - $67.93 $988,497 - $1.29 Million	-18,944 Reduced 1.48%	1,263,837 $71 Million
Q3 2018 Oct 30, 2018	SELL	$38.13 - $68.37 $462,173 - $828,712	-12,121 Reduced 0.94%	1,282,781 $83.3 Million
Q2 2018 Jul 31, 2018	SELL	$27.62 - $44.51 $402,948 - $649,356	-14,589 Reduced 1.11%	1,294,902 $52.6 Million
Q1 2018 Apr 30, 2018	SELL	$26.05 - $34.5 $1.25 Million - $1.66 Million	-48,156 Reduced 3.55%	1,309,491 $40.4 Million
Q4 2017 Jan 31, 2018	SELL	$24.5 - $36.01 $2.32 Million - $3.42 Million	-94,858 Reduced 6.53%	1,357,647 $34.8 Million
Q3 2017 Nov 06, 2017	BUY	$31.26 - $42.03 $45.4 Million - $61 Million	1,452,505	1,452,505 $47.9 Million

Others Institutions Holding GKOS

# of Institutions

332

Shares Held

53.7M

Call Options Held

257K

Put Options Held

481K

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About GLAUKOS Corp

Ticker GKOS
Exchange NYSE
Sector Healthcare
Industry Medical Devices
Shares Outstandng 47,596,900
Market Cap $4.28B
Description
Glaukos Corporation, an ophthalmic medical technology and pharmaceutical company, focuses on the development of novel therapies for the treatment of glaucoma, corneal disorders, and retinal diseases. It offers iStent, iStent inject, iStent inject W micro-bypass stents that enhance aqueous humor outflow inserted in cataract surgery to treat mild-...

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Gilder Gagnon Howe & CO LLC Glaukos Corp Transaction History