Fabrinet
US ˙ NYSE ˙ KYG3323L1005

SecurityFN / Fabrinet
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership4,963 shares
Latest Disclosed Value $ 2,588,303
Citadel Advisors Llc ownership in FN / Fabrinet

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 4,963 shares of Fabrinet (US:FN) valued at $2,588,304 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 176,542 shares of Fabrinet. This represents a change in shares of -97.19% during the quarter. The current value of the position is $3,083,264 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (FN) in the form of stock options. The firm currently holds call options representing 91,400 of underlying shares valued at $47,666,928 USD and put options representing 48,000 of underlying shares valued at $25,032,960 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FN / Fabrinet Historical Put/Call Ratio
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 FABRINET SHS G3323L100 4,963 -171,579 -97.19 2,588 -96.78 0.0004
2026-02-17 2025-12-31 13F FABRINET SHS G3323L100 176,542 -432,283 -71.00 80,376 -63.79 0.0121
2025-11-14 2025-09-30 13F FABRINET SHS G3323L100 608,825 164,452 37.01 221,990 69.53 0.0338
2025-08-14 2025-06-30 13F FABRINET SHS G3323L100 444,373 -93,970 -17.46 130,948 23.15 0.0227
2025-05-15 2025-03-31 13F FABRINET SHS G3323L100 538,343 477,441 783.95 106,328 694.03 0.0202
2025-02-14 2024-12-31 13F FABRINET SHS G3323L100 60,902 -82,056 -57.40 13,391 -60.38 0.0023
2024-11-14 2024-09-30 13F FABRINET SHS G3323L100 142,958 26,894 23.17 33,801 18.97 0.0065
2024-08-14 2024-06-30 13F FABRINET SHS G3323L100 116,064 108,098 1,356.99 28,411 1,787.77 0.0058
2024-05-15 2024-03-31 13F FABRINET SHS G3323L100 7,966 7,966 1,506 0.0003
2024-02-14 2023-12-31 13F FABRINET SHS G3323L100 0 -6,832 -100.00 0 -100.00
2023-11-14 2023-09-30 13F FABRINET SHS G3323L100 6,832 -58,557 -89.55 1,138 -86.60 0.0002
2023-08-14 2023-06-30 13F FABRINET SHS G3323L100 65,389 26,777 69.35 8,493 85.21 0.0018
2023-05-15 2023-03-31 13F FABRINET SHS G3323L100 38,612 -16,355 -29.75 4,586 -34.94 0.0010
2023-02-14 2022-12-31 13F FABRINET SHS G3323L100 54,967 25,871 88.92 7,048 153.76 0.0016
2022-11-14 2022-09-30 13F FABRINET SHS G3323L100 29,096 29,096 2,777 0.0006
2022-05-16 2022-03-31 13F FABRINET SHS G3323L100 0 -57,850 -100.00 0 -100.00
2022-02-14 2021-12-31 13F FABRINET SHS G3323L100 57,850 11,033 23.57 6,853 42.80 0.0014
2021-11-15 2021-09-30 13F FABRINET Cmn G3323L100 46,817 28,410 154.34 4,799 171.90 0.0010
2021-08-16 2021-06-30 13F FABRINET SHS G3323L100 18,407 -17,815 -49.18 1,765 -46.09 0.0004
2021-05-21 2021-03-31 13F/A-1 FABRINET SHS G3323L100 36,222 26,460 271.05 3,274 332.50 0.0008
2021-05-17 2021-03-31 13F FABRINET SHS G3323L100 36,222 26,460 3,274 0.0008
2021-02-16 2020-12-31 13F FABRINET SHS G3323L100 9,762 9,762 757 0.0002
2020-11-16 2020-09-30 13F FABRINET Cmn G3323L100 0 -103,872 -100.00 0 -100.00
2020-08-14 2020-06-30 13F FABRINET Cmn G3323L100 103,872 -394,479 -79.16 6,484 -76.15 0.0023
2020-05-15 2020-03-31 13F FABRINET Cmn G3323L100 498,351 18,168 3.78 27,190 -12.67 0.0122
2020-02-14 2019-12-31 13F FABRINET Cmn G3323L100 480,183 -26,194 -5.17 31,135 17.56 0.0135
2019-11-14 2019-09-30 13F FABRINET Cmn G3323L100 506,377 -12,761 -2.46 26,484 2.71 0.0125
2019-08-14 2019-06-30 13F FABRINET Cmn G3323L100 519,138 77,941 17.67 25,785 11.62 0.0118
2019-05-15 2019-03-31 13F FABRINET Cmn G3323L100 441,197 92,473 26.52 23,101 29.11 0.0115
2019-02-14 2018-12-31 13F FABRINET Cmn G3323L100 348,724 37,366 12.00 17,893 24.23 0.0098
2018-11-13 2018-09-30 13F FABRINET Cmn G3323L100 311,358 311,358 14,403 0.0065
2018-08-14 2018-06-30 13F/A-1 FABRINET Cmn G3323L100 0 -11,947 -100.00 0 -100.00
2018-05-14 2018-03-31 13F/A-1 FABRINET Cmn G3323L100 11,947 11,947 375 0.0002
2018-05-11 2018-03-31 13F FABRINET Cmn G3323L100 11,947 11,947 375
2018-02-09 2017-12-31 13F FABRINET Cmn G3323L100 0 -6,726 -100.00 0 -100.00
2017-11-09 2017-09-30 13F FABRINET Cmn G3323L100 6,726 6,726 249 0.0002
2017-05-12 2017-03-31 13F FABRINET Cmn G3323L100 0 -9,720 -100.00 0 -100.00
2017-02-10 2016-12-31 13F FABRINET Cmn G3323L100 9,720 -38,634 -79.90 392 -81.82 0.0004
2017-01-31 2016-09-30 13F/A-1 FABRINET Cmn G3323L100 48,354 48,354 438.76 2,156 1,183.33 0.0022
2016-11-10 2016-09-30 13F FABRINET Cmn G3323L100 48,354 2,156
2015-11-16 2015-09-30 13F FABRINET Cmn G3323L100 0 -8,975 -100.00 0 -100.00
2015-08-14 2015-06-30 13F FABRINET Cmn G3323L100 8,975 -43,017 -82.74 168 -82.98 0.0001
2015-05-15 2015-03-31 13F FABRINET Cmn G3323L100 51,992 -5,236 -9.15 987 -2.85 0.0011
2015-02-17 2014-12-31 13F FABRINET Cmn G3323L100 57,228 50,891 803.08 1,016 992.47 0.0012
2014-11-14 2014-09-30 13F FABRINET Cmn G3323L100 6,337 -37,192 -85.44 93 -89.63 0.0001
2014-08-14 2014-06-30 13F FABRINET Cmn G3323L100 43,529 1,562 3.72 897 3.94 0.0012
2014-02-14 2013-12-31 13F FABRINET Cmn G3323L100 41,967 -52,963 -55.79 863 -45.99 0.0011
2013-11-14 2013-09-30 13F FABRINET Cmn G3323L100 94,930 -72,074 -43.16 1,598 -31.65 0.0024
2013-08-14 2013-06-30 13F FABRINET Cmn G3323L100 167,004 167,004 2,338 0.0040
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FABRINET SHS Call 91,400 58.13 47,667 81.14 n/a n/a n/a
2026-02-17 2025-12-31 13F FABRINET SHS Call 57,800 6.64 26,315 33.16 n/a n/a n/a
2025-11-14 2025-09-30 13F FABRINET SHS Call 54,200 232.52 19,762 311.45 n/a n/a n/a
2025-08-14 2025-06-30 13F FABRINET SHS Call 16,300 -47.25 4,803 -21.30 n/a n/a n/a
2025-05-15 2025-03-31 13F FABRINET SHS Call 30,900 122.30 6,103 99.71 n/a n/a n/a
2025-02-14 2024-12-31 13F FABRINET SHS Call 13,900 12.10 3,056 4.26 n/a n/a n/a
2024-11-14 2024-09-30 13F FABRINET SHS Call 12,400 -55.71 2,932 -57.24 n/a n/a n/a
2024-08-14 2024-06-30 13F FABRINET SHS Call 28,000 -19.08 6,854 4.80 n/a n/a n/a
2024-05-15 2024-03-31 13F FABRINET SHS Call 34,600 7.12 6,540 6.39 n/a n/a n/a
2024-02-14 2023-12-31 13F FABRINET SHS Call 32,300 -53.05 6,148 -46.38 n/a n/a n/a
2023-11-14 2023-09-30 13F FABRINET SHS Call 68,800 40.98 11,463 80.86 n/a n/a n/a
2023-08-14 2023-06-30 13F FABRINET SHS Call 48,800 495.12 6,338 551.39 n/a n/a n/a
2023-05-15 2023-03-31 13F FABRINET SHS Call 8,200 290.48 974 261.71 n/a n/a n/a
2023-02-14 2022-12-31 13F FABRINET SHS Call 2,100 -22.22 269 4.26 n/a n/a n/a
2022-11-14 2022-09-30 13F FABRINET SHS Call 2,700 -12.90 258 2.79 n/a n/a n/a
2022-08-15 2022-06-30 13F FABRINET SHS Call 3,100 -13.89 251 -33.60 n/a n/a n/a
2022-05-16 2022-03-31 13F FABRINET SHS Call 3,600 -30.77 378 -38.64 n/a n/a n/a
2022-02-14 2021-12-31 13F FABRINET SHS Call 5,200 -66.01 616 -60.71 n/a n/a n/a
2021-11-15 2021-09-30 13F FABRINET Cmn Call 15,300 -12.57 1,568 -6.56 n/a n/a n/a
2021-08-16 2021-06-30 13F FABRINET SHS Call 17,500 92.31 1,678 103.89 n/a n/a n/a
2021-05-21 2021-03-31 13F/A FABRINET SHS Call 9,100 -30.53 823 -19.00 n/a n/a n/a
2021-05-17 2021-03-31 13F FABRINET SHS Call 9,100 823 n/a n/a n/a
2021-02-16 2020-12-31 13F FABRINET SHS Call 13,100 11.02 1,016 36.56 n/a n/a n/a
2020-11-16 2020-09-30 13F FABRINET SHS Call 11,800 63.89 744 65.70 n/a n/a n/a
2020-08-14 2020-06-30 13F FABRINET Cmn Call 7,200 -40.00 449 -31.45 n/a n/a n/a
2020-05-15 2020-03-31 13F FABRINET Cmn Call 12,000 -20.00 655 -32.68 n/a n/a n/a
2020-02-14 2019-12-31 13F FABRINET Cmn Call 15,000 -0.66 973 23.16 n/a n/a n/a
2019-11-14 2019-09-30 13F FABRINET Cmn Call 15,100 -16.11 790 -11.63 n/a n/a n/a
2019-08-14 2019-06-30 13F FABRINET Cmn Call 18,000 57.89 894 49.75 n/a n/a n/a
2019-05-15 2019-03-31 13F FABRINET Cmn Call 11,400 -59.43 597 -58.60 n/a n/a n/a
2019-02-14 2018-12-31 13F FABRINET Cmn Call 28,100 -31.30 1,442 -23.78 n/a n/a n/a
2018-11-13 2018-09-30 13F FABRINET Cmn Call 40,900 -13.35 1,892 8.67 n/a n/a n/a
2018-08-14 2018-06-30 13F/A FABRINET Cmn Call 47,200 -19.18 1,741 -5.02 n/a n/a n/a
2018-08-10 2018-06-30 13F FABRINET Cmn Call 47,200 1,741 n/a n/a n/a
2018-05-14 2018-03-31 13F/A FABRINET Cmn Call 58,400 -19.11 1,833 -11.53 n/a n/a n/a
2018-05-11 2018-03-31 13F FABRINET Cmn Call 58,400 1,833 n/a n/a n/a
2018-02-09 2017-12-31 13F FABRINET Cmn Call 72,200 44.69 2,072 12.06 n/a n/a n/a
2017-11-09 2017-09-30 13F FABRINET Cmn Call 49,900 43.39 1,849 24.51 n/a n/a n/a
2017-08-11 2017-06-30 13F FABRINET Cmn Call 34,800 84.13 1,485 87.03 n/a n/a n/a
2017-05-12 2017-03-31 13F FABRINET Cmn Call 18,900 45.38 794 51.53 n/a n/a n/a
2017-02-10 2016-12-31 13F FABRINET Cmn Call 13,000 524 n/a n/a n/a
2015-11-16 2015-09-30 13F FABRINET Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F FABRINET Cmn Call 200 -94.59 4 -94.29 n/a n/a n/a
2015-05-15 2015-03-31 13F FABRINET Cmn Call 3,700 -21.28 70 -15.66 n/a n/a n/a
2015-02-17 2014-12-31 13F FABRINET Cmn Call 4,700 291.67 83 361.11 n/a n/a n/a
2014-11-14 2014-09-30 13F FABRINET Cmn Call 1,200 -36.84 18 -53.85 n/a n/a n/a
2014-08-14 2014-06-30 13F FABRINET Cmn Call 1,900 39 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FABRINET SHS Put 48,000 86.77 25,033 113.95 n/a n/a n/a
2026-02-17 2025-12-31 13F FABRINET SHS Put 25,700 127.43 11,701 183.98 n/a n/a n/a
2025-11-14 2025-09-30 13F FABRINET SHS Put 11,300 -86.91 4,120 -83.80 n/a n/a n/a
2025-08-14 2025-06-30 13F FABRINET SHS Put 86,300 0.00 25,431 49.19 n/a n/a n/a
2025-05-15 2025-03-31 13F FABRINET SHS Put 86,300 235.80 17,045 201.68 n/a n/a n/a
2025-02-14 2024-12-31 13F FABRINET SHS Put 25,700 97.69 5,651 83.86 n/a n/a n/a
2024-11-14 2024-09-30 13F FABRINET SHS Put 13,000 88.41 3,074 81.94 n/a n/a n/a
2024-08-14 2024-06-30 13F FABRINET SHS Put 6,900 -64.80 1,689 -54.40 n/a n/a n/a
2024-05-15 2024-03-31 13F FABRINET SHS Put 19,600 -20.97 3,705 -21.53 n/a n/a n/a
2024-02-14 2023-12-31 13F FABRINET SHS Put 24,800 -44.77 4,720 -36.91 n/a n/a n/a
2023-11-14 2023-09-30 13F FABRINET SHS Put 44,900 8.19 7,481 38.79 n/a n/a n/a
2023-08-14 2023-06-30 13F FABRINET SHS Put 41,500 484.51 5,390 539.38 n/a n/a n/a
2023-05-15 2023-03-31 13F FABRINET SHS Put 7,100 73.17 843 60.57 n/a n/a n/a
2023-02-14 2022-12-31 13F FABRINET SHS Put 4,100 28.12 526 72.13 n/a n/a n/a
2022-11-14 2022-09-30 13F FABRINET SHS Put 3,200 23.08 305 44.55 n/a n/a n/a
2022-08-15 2022-06-30 13F FABRINET SHS Put 2,600 -29.73 211 -45.76 n/a n/a n/a
2022-05-16 2022-03-31 13F FABRINET SHS Put 3,700 32.14 389 17.17 n/a n/a n/a
2022-02-14 2021-12-31 13F FABRINET SHS Put 2,800 -39.13 332 -29.66 n/a n/a n/a
2021-11-15 2021-09-30 13F FABRINET Cmn Put 4,600 -57.01 472 -54.00 n/a n/a n/a
2021-08-16 2021-06-30 13F FABRINET SHS Put 10,700 -6.96 1,026 -1.25 n/a n/a n/a
2021-05-21 2021-03-31 13F/A FABRINET SHS Put 11,500 -4.17 1,039 11.60 n/a n/a n/a
2021-05-17 2021-03-31 13F FABRINET SHS Put 11,500 1,039 n/a n/a n/a
2021-02-16 2020-12-31 13F FABRINET SHS Put 12,000 22.45 931 50.65 n/a n/a n/a
2020-11-16 2020-09-30 13F FABRINET SHS Put 9,800 7.69 618 8.80 n/a n/a n/a
2020-08-14 2020-06-30 13F FABRINET Cmn Put 9,100 -40.52 568 -31.98 n/a n/a n/a
2020-05-15 2020-03-31 13F FABRINET Cmn Put 15,300 12.50 835 -5.33 n/a n/a n/a
2020-02-14 2019-12-31 13F FABRINET Cmn Put 13,600 44.68 882 79.27 n/a n/a n/a
2019-11-14 2019-09-30 13F FABRINET Cmn Put 9,400 34.29 492 41.38 n/a n/a n/a
2019-08-14 2019-06-30 13F FABRINET Cmn Put 7,000 -54.25 348 -56.55 n/a n/a n/a
2019-05-15 2019-03-31 13F FABRINET Cmn Put 15,300 59.38 801 62.47 n/a n/a n/a
2019-02-14 2018-12-31 13F FABRINET Cmn Put 9,600 -55.14 493 -50.20 n/a n/a n/a
2018-11-13 2018-09-30 13F FABRINET Cmn Put 21,400 55.07 990 94.50 n/a n/a n/a
2018-08-14 2018-06-30 13F/A FABRINET Cmn Put 13,800 -28.12 509 -15.45 n/a n/a n/a
2018-08-10 2018-06-30 13F FABRINET Cmn Put 13,800 509 n/a n/a n/a
2018-05-14 2018-03-31 13F/A FABRINET Cmn Put 19,200 14.29 602 24.90 n/a n/a n/a
2018-05-11 2018-03-31 13F FABRINET Cmn Put 19,200 602 n/a n/a n/a
2018-02-09 2017-12-31 13F FABRINET Cmn Put 16,800 -21.50 482 -39.22 n/a n/a n/a
2017-11-09 2017-09-30 13F FABRINET Cmn Put 21,400 9.18 793 -5.14 n/a n/a n/a
2017-08-11 2017-06-30 13F FABRINET Cmn Put 19,600 45.19 836 47.44 n/a n/a n/a
2017-05-12 2017-03-31 13F FABRINET Cmn Put 13,500 56.98 567 63.40 n/a n/a n/a
2017-02-10 2016-12-31 13F FABRINET Cmn Put 8,600 347 n/a n/a n/a
2015-11-16 2015-09-30 13F FABRINET Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F FABRINET Cmn Put 5,600 105 n/a n/a n/a
2015-02-17 2014-12-31 13F FABRINET Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-11-14 2014-09-30 13F FABRINET Cmn Put 1,100 57.14 16 14.29 n/a n/a n/a
2014-08-14 2014-06-30 13F FABRINET Cmn Put 700 14 n/a n/a n/a
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.