Fortinet, Inc.
MX ˙ BMV ˙ US34959E1091
SecurityMX:FTNT / Fortinet, Inc.
InstitutionAqr Capital Management Llc
ManagerCliff Asness
Latest Disclosed Ownership7,771,945 shares
Latest Disclosed Value $ 627,895,396
Aqr Capital Management Llc reports 89.14% increase in ownership of FTNT / Fortinet, Inc.

On May 15, 2026 - Aqr Capital Management Llc filed a 13F-HR form disclosing ownership of 7,771,945 shares of Fortinet, Inc. (MX:FTNT) valued at $627,895,396 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,109,016 shares of Fortinet, Inc.. This represents a change in shares of 89.14% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F FORTINET COM 34959E109 7,771,945 3,662,929 89.14 627,895 92.43 0.2875
2026-02-17 2025-12-31 13F FORTINET COM 34959E109 4,109,016 1,777,115 76.21 326,297 66.42 0.1712
2025-11-14 2025-09-30 13F FORTINET COM 34959E109 2,331,901 -3,721,768 -61.48 196,066 -69.09 0.1257
2025-08-14 2025-06-30 13F FORTINET COM 34959E109 6,053,669 82,021 1.37 634,303 13.04 0.5247
2025-05-15 2025-03-31 13F FORTINET COM 34959E109 5,971,648 1,733,670 40.91 561,156 40.15 0.5781
2025-02-14 2024-12-31 13F FORTINET COM 34959E109 4,237,978 214,879 5.34 400,404 28.87 0.5158
2024-11-14 2024-09-30 13F FORTINET COM 34959E109 4,023,099 1,347,455 50.36 310,704 92.67 0.4289
2024-08-14 2024-06-30 13F FORTINET COM 34959E109 2,675,644 1,265,162 89.70 161,261 67.89 0.2472
2024-05-15 2024-03-31 13F FORTINET COM 34959E109 1,410,482 -81,195 -5.44 96,054 10.02 0.1635
2024-02-14 2023-12-31 13F FORTINET COM 34959E109 1,491,677 864,885 137.99 87,308 137.38 0.1643
2023-11-14 2023-09-30 13F FORTINET COM 34959E109 626,792 392,631 167.68 36,780 107.80 0.0759
2023-08-14 2023-06-30 13F FORTINET COM 34959E109 234,161 26,417 12.72 17,700 28.92 0.0376
2023-05-15 2023-03-31 13F FORTINET COM 34959E109 207,744 -131,228 -38.71 13,730 -16.73 0.0301
2023-02-14 2022-12-31 13F FORTINET COM 34959E109 338,972 -313,994 -48.09 16,488 -48.61 0.0376
2022-11-14 2022-09-30 13F FORTINET COM 34959E109 652,966 95,058 17.04 32,080 2.22 0.0782
2022-08-15 2022-06-30 13F FORTINET COM 34959E109 557,908 410,328 278.04 31,382 -37.78 0.0709
2022-05-16 2022-03-31 13F FORTINET COM 34959E109 147,580 33,513 29.38 50,434 23.02 0.0957
2022-02-14 2021-12-31 13F FORTINET COM 34959E109 114,067 20,886 22.41 40,996 50.65 0.0743
2021-11-15 2021-09-30 13F FORTINET COM 34959E109 93,181 24,198 35.08 27,213 65.62 0.0505
2021-08-16 2021-06-30 13F FORTINET COM 34959E109 68,983 -64,396 -48.28 16,431 -32.84 0.0284
2021-05-17 2021-03-31 13F FORTINET COM 34959E109 133,379 -310,948 -69.98 24,466 -62.77 0.0400
2021-02-16 2020-12-31 13F FORTINET COM 34959E109 444,327 -161,201 -26.62 65,720 -7.34 0.1165
2020-11-16 2020-09-30 13F FORTINET COM 34959E109 605,528 -103,036 -14.54 70,925 -26.44 0.1199
2020-08-17 2020-06-30 13F FORTINET COM 34959E109 708,564 -243,200 -25.55 96,414 0.13 0.1560
2020-05-15 2020-03-31 13F FORTINET COM 34959E109 951,764 -501,097 -34.49 96,290 -37.92 0.1620
2020-02-14 2019-12-31 13F FORTINET COM 34959E109 1,452,861 -1,432,683 -49.65 155,107 -29.12 0.1763
2019-11-14 2019-09-30 13F FORTINET COM 34959E109 2,885,544 -1,454,186 -33.51 218,840 -34.21 0.2577
2019-08-14 2019-06-30 13F FORTINET COM 34959E109 4,339,730 536,513 14.11 332,640 5.00 0.3712
2019-05-14 2019-03-31 13F FORTINET COM 34959E109 3,803,217 997,004 35.53 316,808 60.29 0.3361
2019-02-14 2018-12-31 13F FORTINET COM 34959E109 2,806,213 542,308 23.95 197,642 -5.39 0.2290
2018-11-15 2018-09-30 13F/A-1 FORTINET COM 34959E109 2,263,905 772,344 51.78 208,891 124.33 0.1998
2018-11-14 2018-09-30 13F FORTINET COM 34959E109 1,491,561 0 93,119
2018-08-14 2018-06-30 13F FORTINET COM 34959E109 1,491,561 173,115 13.13 93,119 31.82 0.0938
2018-05-15 2018-03-31 13F FORTINET COM 34959E109 1,318,446 403,463 44.10 70,642 76.71 0.0762
2018-02-14 2017-12-31 13F FORTINET COM 34959E109 914,983 277,513 43.53 39,976 74.97 0.0420
2017-11-14 2017-09-30 13F FORTINET COM 34959E109 637,470 9,668 1.54 22,847 -2.80 0.0273
2017-08-14 2017-06-30 13F FORTINET COM 34959E109 627,802 -129,581 -17.11 23,505 -19.07 0.0311
2017-05-15 2017-03-31 13F FORTINET COM 34959E109 757,383 -96,149 -11.26 29,045 12.98 0.0386
2017-02-14 2016-12-31 13F FORTINET COM 34959E109 853,532 113,119 15.28 25,708 -5.98 0.0355
2016-11-14 2016-09-30 13F FORTINET COM 34959E109 740,413 19,706 2.73 27,343 20.10 0.0419
2016-08-15 2016-06-30 13F FORTINET COM 34959E109 720,707 260,660 56.66 22,767 61.57 0.0402
2016-07-29 2016-03-31 13F/A-1 FORTINET COM 34959E109 460,047 101,948 28.47 14,091 26.24 0.0253
2016-05-16 2016-03-31 13F FORTINET COM 34959E109 460,047 14,091
2016-02-16 2015-12-31 13F FORTINET COM 34959E109 358,099 -21,888 -5.76 11,162 -30.85 0.0195
2015-11-16 2015-09-30 13F FORTINET COM 34959E109 379,987 -22,529 -5.60 16,142 -2.97 0.0323
2015-08-14 2015-06-30 13F FORTINET COM 34959E109 402,516 51,960 14.82 16,636 35.78 0.0330
2015-05-15 2015-03-31 13F FORTINET COM 34959E109 350,556 -167,516 -32.33 12,252 -22.87 0.0280
2015-04-22 2014-12-31 13F/A-1 FORTINET COM 34959E109 518,072 99,807 23.86 15,884 50.32 0.0333
2015-02-17 2014-12-31 13F FORTINET COM 34959E109 518,072 15,884
2014-11-14 2014-09-30 13F FORTINET COM 34959E109 418,265 296,246 242.79 10,567 244.65 0.0290
2014-08-14 2014-06-30 13F FORTINET COM 34959E109 122,019 65,500 115.89 3,066 146.27 0.0083
2014-05-15 2014-03-31 13F FORTINET COM 34959E109 56,519 -307,000 -84.45 1,245 -82.10 0.0038
2014-02-14 2013-12-31 13F FORTINET COM 34959E109 363,519 127,100 53.76 6,954 45.18 0.0208
2013-11-14 2013-09-30 13F FORTINET COM 34959E109 236,419 -52,954 -18.30 4,790 -5.41 0.0169
2013-08-14 2013-06-30 13F FORTINET COM 34959E109 289,373 66,749 29.98 5,064 7.95 0.0180
2013-05-29 2012-12-31 13F/A-1 FORTINET COM 34959E109 222,624 222,624 4,691 0.0201
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.