Robeco Institutional Asset Management B.V. Fortinet, Inc. Transaction History

Robeco Institutional Asset Management B.V.

$66.7 Billion
Q4 2025

A detailed history of Robeco Institutional Asset Management B.V. transactions in Fortinet, Inc. stock. As of the latest transaction made, Robeco Institutional Asset Management B.V. holds 2,522,604 shares of FTNT stock, worth $208 Million. This represents 0.31% of its overall portfolio holdings.

Number of Shares

2,522,604

Previous 1,629,635 54.8%

Holding current value

$208 Million

Previous $137 Million 51.54%

% of portfolio

0.31%

Previous 0.21%

45 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q4 2025 Jan 22, 2026	BUY	$80.54 - $87.52 $71.9 Million - $78.2 Million	892,969 Added 54.8%	2,522,604 $208 Million
Q3 2025 Oct 22, 2025	SELL	$74.39 - $107.65 $69.3 Million - $100 Million	-931,704 Reduced 36.38%	1,629,635 $137 Million
Q2 2025 Jul 18, 2025	SELL	$84.71 - $108.69 $9.92 Million - $12.7 Million	-117,064 Reduced 4.37%	2,561,339 $271 Million
Q1 2025 Apr 23, 2025	SELL	$92.49 - $114.57 $42.3 Million - $52.4 Million	-457,562 Reduced 14.59%	2,678,403 $258 Million
Q4 2024 Jan 22, 2025	SELL	$76.49 - $99.21 $20.5 Million - $26.6 Million	-268,010 Reduced 7.87%	3,135,965 $296 Million

Q3 2024 Oct 29, 2024	BUY	$55.39 - $77.55 $17.2 Million - $24 Million	309,772 Added 10.01%	3,403,975 $264 Million
Q2 2024 Jul 22, 2024	BUY	$57.94 - $71.32 $15.2 Million - $18.7 Million	262,520 Added 9.27%	3,094,203 $186 Million
Q1 2024 Apr 24, 2024	SELL	$57.78 - $73.07 $25.7 Million - $32.5 Million	-445,079 Reduced 13.58%	2,831,683 $193 Million
Q4 2023 Feb 14, 2024	BUY	$49.52 - $59.93 $55 Million - $66.5 Million	1,109,768 Added 51.21%	3,276,762 $192 Million
Q4 2023 Feb 08, 2024	SELL	$49.52 - $59.93 $69.8 Million - $84.5 Million	-1,409,230 Reduced 39.41%	2,166,994 $3.28 Billion
Q3 2023 Oct 23, 2023	BUY	$56.77 - $80.28 $90 Million - $127 Million	1,585,236 Added 79.62%	3,576,224 $210 Million
Q2 2023 Jul 24, 2023	SELL	$60.49 - $75.59 $2.32 Million - $2.9 Million	-38,401 Reduced 1.89%	1,990,988 $150 Million
Q1 2023 May 03, 2023	SELL	$47.45 - $66.46 $4.95 Million - $6.93 Million	-104,266 Reduced 4.89%	2,029,389 $135 Million
Q4 2022 Feb 06, 2023	BUY	$45.93 - $57.16 $1.7 Million - $2.11 Million	36,940 Added 1.76%	2,133,655 $104 Million
Q3 2022 Dec 01, 2022	BUY	$48.29 - $62.88 $3.72 Million - $4.85 Million	77,092 Added 3.82%	2,096,715 $103 Million
Q3 2022 Oct 26, 2022	BUY	$48.29 - $62.88 $3.72 Million - $4.85 Million	77,092 Added 3.82%	2,096,715 $103 Million
Q2 2022 Dec 01, 2022	BUY	$49.04 - $69.34 $78.9 Million - $112 Million	1,608,372 Added 391.09%	2,019,623 $114 Million
Q2 2022 Jul 27, 2022	BUY	$49.04 - $69.34 $78.9 Million - $112 Million	1,608,372 Added 391.09%	2,019,623 $114 Million
Q1 2022 Dec 01, 2022	BUY	$53.94 - $69.5 $658,391 - $848,317	12,206 Added 3.06%	411,251 $141 Million
Q1 2022 Apr 26, 2022	BUY	$53.94 - $69.5 $658,391 - $848,317	12,206 Added 3.06%	411,251 $141 Million
Q4 2021 Dec 01, 2022	SELL	$57.77 - $73.53 $935,296 - $1.19 Million	-16,190 Reduced 3.9%	399,045 $143 Million
Q4 2021 Jan 31, 2022	SELL	$57.77 - $73.53 $935,296 - $1.19 Million	-16,190 Reduced 3.9%	399,045 $143 Million
Q3 2021 Dec 01, 2022	SELL	$48.47 - $64.04 $2.46 Million - $3.25 Million	-50,734 Reduced 10.89%	415,235 $121 Million
Q3 2021 Oct 20, 2021	SELL	$48.47 - $64.04 $2.46 Million - $3.25 Million	-50,734 Reduced 10.89%	415,235 $121 Million
Q2 2021 Dec 01, 2022	SELL	$37.28 - $49.41 $651,579 - $863,587	-17,478 Reduced 3.62%	465,969 $111 Million
Q2 2021 Jul 28, 2021	SELL	$37.28 - $49.41 $651,579 - $863,587	-17,478 Reduced 3.62%	465,969 $111 Million
Q1 2021 Dec 01, 2022	SELL	$27.62 - $38.41 $44.6 Million - $62 Million	-1,613,268 Reduced 76.94%	483,447 $89.2 Million
Q1 2021 Apr 23, 2021	BUY	$27.62 - $38.41 $1.27 Million - $1.77 Million	46,048 Added 10.53%	483,447 $89.2 Million
Q4 2020 Dec 01, 2022	SELL	$22.07 - $30.43 $36.6 Million - $50.5 Million	-1,659,316 Reduced 79.14%	437,399 $65 Million
Q4 2020 Jan 28, 2021	SELL	$22.07 - $30.43 $292,228 - $402,923	-13,241 Reduced 2.94%	437,399 $65 Million
Q3 2020 Oct 29, 2020	BUY	$23.03 - $29.92 $998,258 - $1.3 Million	43,346 Added 10.64%	450,640 $53.1 Million
Q2 2020 Jul 20, 2020	SELL	$20.09 - $29.12 $256,649 - $372,008	-12,775 Reduced 3.04%	407,294 $55.9 Million
Q1 2020 Apr 30, 2020	BUY	$15.14 - $24.27 $346,494 - $555,443	22,886 Added 5.76%	420,069 $42.5 Million
Q4 2019 Feb 06, 2020	SELL	$15.13 - $21.91 $2.33 Million - $3.38 Million	-154,196 Reduced 27.97%	397,183 $42.4 Million
Q3 2019 Oct 17, 2019	SELL	$15.24 - $17.52 $1.52 Million - $1.75 Million	-99,773 Reduced 15.32%	551,379 $42.3 Million
Q2 2019 Jul 19, 2019	BUY	$13.93 - $19.04 $37,067 - $50,665	2,661 Added 0.41%	651,152 $50 Million
Q1 2019 May 02, 2019	BUY	$13.38 - $17.66 $478,013 - $630,921	35,726 Added 5.83%	648,491 $54.5 Million
Q4 2018 Feb 08, 2019	BUY	$13.1 - $18.46 $15,497 - $21,838	1,183 Added 0.19%	612,765 $43.1 Million
Q3 2018 Oct 31, 2018	BUY	$12.56 - $18.45 $16,742 - $24,593	1,333 Added 0.22%	611,582 $56.4 Million
Q3 2018 Oct 25, 2018	BUY	$12.56 - $18.45 $1.33 Million - $1.96 Million	106,169 Added 21.06%	610,249 $56.3 Million
Q2 2018 Aug 03, 2018	BUY	$10.49 - $13.23 $2.92 Million - $3.69 Million	278,684 Added 123.64%	504,080 $31.5 Million
Q1 2018 May 07, 2018	BUY	$8.77 - $10.94 $1.04 Million - $1.29 Million	118,178 Added 110.22%	225,396 $12.1 Million
Q4 2017 Jan 25, 2018	BUY	$7.27 - $9.02 $725,502 - $900,141	99,794 Added 1344.21%	107,218 $4.69 Million
Q3 2017 Oct 17, 2017	BUY	$7.17 - $7.73 $36,954 - $39,840	5,154 Added 227.05%	7,424 $266,000
Q2 2017 Jan 19, 2021	BUY	N/A	2,270	2,270 $84,000

Others Institutions Holding FTNT

# of Institutions

1,481

Shares Held

468M

Call Options Held

8.09M

Put Options Held

9.87M

View Full List

About Fortinet, Inc.

Ticker FTNT
Exchange NASDAQ
Sector Technology
Industry Software—Infrastructure
Shares Outstandng 788,521,024
Market Cap $64.9B
Description
Fortinet, Inc. provides broad, integrated, and automated cybersecurity solutions in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. It offers FortiGate hardware and software licenses that provide various security and networking functions, including firewall, intrusion prevention, anti-malware, virtual private network, applic...

More about FTNT

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Robeco Institutional Asset Management B.V. Fortinet, Inc. Transaction History