Synopsys, Inc.
US ˙ NasdaqGS ˙ US8716071076

SecuritySNPS / Synopsys, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership2,688 shares
Latest Disclosed Value $ 1,326
Shell Asset Management Co reports 34.55% decrease in ownership of SNPS / Synopsys, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 2,688 shares of Synopsys, Inc. (US:SNPS) valued at $1,326,232 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 4,107 shares of Synopsys, Inc.. This represents a change in shares of -34.55% during the quarter. The current value of the position is $1,329,162 USD.

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)
2025-11-07 2025-09-30 13F SYNOPSYS COM 871607107 2,688 -1,419 -34.55 1 -50.00 0.1332
2025-07-23 2025-06-30 13F SYNOPSYS COM 871607107 4,107 1,630 65.81 2 100.00 0.0727
2025-05-14 2025-03-31 13F SYNOPSYS COM 871607107 2,477 -75 -2.94 1 0.00 0.0504
2025-02-14 2024-12-31 13F SYNOPSYS COM 871607107 2,552 1,087 74.20 1 0.0541
2024-11-07 2024-09-30 13F SYNOPSYS COM 871607107 1,465 -1,853 -55.85 1 -100.00 0.0327
2024-07-25 2024-03-31 13F SYNOPSYS COM 871607107 3,318 367 12.44 2 0.00 0.0899
2024-02-14 2023-12-31 13F SYNOPSYS COM 871607107 2,951 -729 -19.81 2 0.00 0.0702
2023-11-08 2023-09-30 13F SYNOPSYS COM 871607107 3,680 -616 -14.34 2 0.00 0.0698
2023-07-28 2023-06-30 13F SYNOPSYS COM 871607107 4,296 4,296 2 0.0738
2021-11-04 2021-09-30 13F SYNOPSYS COM 871607107 0 -980 -100.00 0 -100.00
2021-08-12 2021-06-30 13F SYNOPSYS COM 871607107 980 -123 -11.15 270 -1.10 0.0052
2021-05-10 2021-03-31 13F SYNOPSYS COM 871607107 1,103 -172 -13.49 273 -17.52 0.0055
2021-02-16 2020-12-31 13F SYNOPSYS COM 871607107 1,275 8 0.63 331 22.14 0.0068
2020-11-13 2020-09-30 13F SYNOPSYS COM 871607107 1,267 470 58.97 271 74.84 0.0063
2020-08-10 2020-06-30 13F SYNOPSYS COM 871607107 797 -4,364 -84.56 155 -76.69 0.0039
2020-05-11 2020-03-31 13F SYNOPSYS COM 871607107 5,161 -406 -7.29 665 -14.19 0.0185
2020-02-13 2019-12-31 13F SYNOPSYS COM 871607107 5,567 -4,603 -45.26 775 -44.48 0.0167
2019-11-12 2019-09-30 13F SYNOPSYS COM 871607107 10,170 -542 -5.06 1,396 1.23 0.0319
2019-08-12 2019-06-30 13F SYNOPSYS COM 871607107 10,712 -222 -2.03 1,379 9.53 0.0305
2019-05-09 2019-03-31 13F SYNOPSYS COM 871607107 10,934 0 0.00 1,259 36.70 0.0278
2019-02-13 2018-12-31 13F SYNOPSYS COM 871607107 10,934 -7,770 -41.54 921 -50.05 0.0230
2018-11-13 2018-09-30 13F SYNOPSYS COM 871607107 18,704 402 2.20 1,844 17.75 0.0364
2018-08-10 2018-06-30 13F SYNOPSYS COM 871607107 18,302 -19,068 -51.02 1,566 -49.66 0.0321
2018-05-14 2018-03-31 13F SYNOPSYS COM 871607107 37,370 3,439 10.14 3,111 7.57 0.0619
2018-02-09 2017-12-31 13F SYNOPSYS COM 871607107 33,931 -66,010 -66.05 2,892 -64.07 0.0574
2017-10-20 2017-09-30 13F/A-1 SYNOPSYS COM 871607107 99,941 -59 -0.06 8,048 10.35 0.1790
2017-10-18 2017-09-30 13F SYNOPSYS COM 871607107 260,224 160,224 10,330
2017-07-26 2017-06-30 13F SYNOPSYS COM 871607107 100,000 -49,433 -33.08 7,293 -32.34 0.1810
2017-04-26 2017-03-31 13F SYNOPSYS COM 871607107 149,433 12,938 9.48 10,779 34.17 0.2751
2017-01-10 2016-12-31 13F SYNOPSYS COM 871607107 136,495 -49,627 -26.66 8,034 -27.27 0.2172
2016-10-28 2016-09-30 13F SYNOPSYS COM 871607107 186,122 3,728 2.04 11,046 11.98 0.2644
2016-07-25 2016-06-30 13F SYNOPSYS COM 871607107 182,394 -3,216 -1.73 9,864 9.71 0.2288
2016-05-11 2016-03-31 13F SYNOPSYS COM 871607107 185,610 -11,782 -5.97 8,991 -0.13 0.2153
2016-02-05 2015-12-31 13F SYNOPSYS COM 871607107 197,392 -62,832 -24.15 9,003 -12.85 0.2126
2015-10-13 2015-09-30 13F SYNOPSYS COM 871607107 260,224 32,662 14.35 10,330 -10.38 0.1637
2015-07-30 2015-06-30 13F SYNOPSYS COM 871607107 227,562 -48,883 -17.68 11,526 -9.99 0.2306
2015-05-07 2015-03-31 13F SYNOPSYS COM 871607107 276,445 276,445 0.00 12,805 0.2230
2015-02-04 2014-12-31 13F SYNOPSYS COM 871607107 0 -260,224 -100.00 0 -100.00
2014-10-24 2014-09-30 13F SYNOPSYS COM 871607107 260,224 -6 -0.00 10,330 2.26 0.1604
2014-08-08 2014-06-30 13F SYNOPSYS COM 871607107 260,230 18,853 7.81 10,102 8.96 0.1557
2014-05-07 2014-03-31 13F SYNOPSYS COM 871607107 241,377 13,267 5.82 9,271 0.18 0.1540
2014-02-03 2013-12-31 13F/A-1 SYNOPSYS COM 871607107 228,110 12,127 5.61 9,254 13.64 0.1575
2014-01-27 2013-12-31 13F SYNOPSYS COM 871607107 228,110 9,254
2013-10-28 2013-09-30 13F SYNOPSYS COM 871607107 215,983 223 0.10 8,143 5.58 0.1496
2013-08-01 2013-06-30 13F SYNOPSYS COM 871607107 215,760 215,760 7,713 0.1468
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.