Applied Materials, Inc.
CH ˙ SWX ˙ US0382221051
SecurityCH:AMAT / Applied Materials, Inc.
InstitutionOsterweis Capital Management Inc
Latest Disclosed Ownership142,132 shares
Latest Disclosed Value $ 48,579,296
Osterweis Capital Management Inc reports 7.03% decrease in ownership of AMAT / Applied Materials, Inc.

On May 15, 2026 - Osterweis Capital Management Inc filed a 13F-HR form disclosing ownership of 142,132 shares of Applied Materials, Inc. (CH:AMAT) valued at $48,579,296 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 152,877 shares of Applied Materials, Inc.. This represents a change in shares of -7.03% 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.

Upgrade to unlock premium data and export to Excel .

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 APPLIED MATLS COM 038222105 142,132 -10,745 -7.03 48,579 23.65 1.9008
2026-02-17 2025-12-31 13F APPLIED MATLS COM 038222105 152,877 -32,869 -17.70 39,288 3.31 1.6628
2025-11-14 2025-09-30 13F APPLIED MATLS COM 038222105 185,746 2,208 1.20 38,030 13.18 1.7162
2025-08-14 2025-06-30 13F APPLIED MATLS COM 038222105 183,538 183,528 1,835,280.00 33,600 3,359,900.00 1.6076
2025-06-05 2025-03-31 13F/A-1 APPLIED MATLS COM 038222105 10 10 1 0.0001
2025-05-14 2025-03-31 13F APPLIED MATLS COM 038222105 10 10 15 0.0001
2025-06-05 2024-12-31 13F/A-1 APPLIED MATLS COM 038222105 0 -80,603 -100.00 0 -100.00
2025-02-13 2024-12-31 13F APPLIED MATLS COM 038222105 0 -80,603 0
2024-11-14 2024-09-30 13F APPLIED MATLS COM 038222105 80,603 -37,481 -31.74 16,286 -41.56 0.8250
2024-08-14 2024-06-30 13F APPLIED MATLS COM 038222105 118,084 -42,014 -26.24 27,867 -15.60 1.4398
2024-05-15 2024-03-31 13F APPLIED MATLS COM 038222105 160,098 -5,699 -3.44 33,017 22.88 1.9392
2024-02-14 2023-12-31 13F APPLIED MATLS COM 038222105 165,797 -617 -0.37 26,871 16.62 1.7055
2023-11-14 2023-09-30 13F APPLIED MATLS COM 038222105 166,414 -5,171 -3.01 23,040 -7.10 1.6880
2023-08-14 2023-06-30 13F APPLIED MATLS COM 038222105 171,585 -26,102 -13.20 24,801 2.14 1.6417
2023-05-15 2023-03-31 13F APPLIED MATLS COM 038222105 197,687 -2,774 -1.38 24,282 24.39 1.6516
2023-02-14 2022-12-31 13F APPLIED MATLS COM 038222105 200,461 2,056 1.04 19,521 20.08 1.4174
2022-11-14 2022-09-30 13F APPLIED MATLS COM 038222105 198,405 54,695 38.06 16,256 24.34 1.2195
2022-08-15 2022-06-30 13F APPLIED MATLS COM 038222105 143,710 -1,555 -1.07 13,074 -31.71 0.9793
2022-05-16 2022-03-31 13F APPLIED MATLS COM 038222105 145,265 -2,320 -1.57 19,146 -17.56 1.0531
2022-02-14 2021-12-31 13F APPLIED MATLS COM 038222105 147,585 -62,885 -29.88 23,224 -14.28 1.1619
2021-11-15 2021-09-30 13F APPLIED MATLS COM 038222105 210,470 -1,394 -0.66 27,094 -10.20 1.4791
2021-08-16 2021-06-30 13F APPLIED MATLS COM 038222105 211,864 -84,822 -28.59 30,170 -23.88 1.5517
2021-05-14 2021-03-31 13F APPLIED MATLS COM 038222105 296,686 -200,056 -40.27 39,637 -7.54 2.1603
2021-02-12 2020-12-31 13F APPLIED MATLS COM 038222105 496,742 -10,667 -2.10 42,869 42.12 2.5571
2020-11-13 2020-09-30 13F APPLIED MATLS COM 038222105 507,409 -11,267 -2.17 30,165 -3.79 2.0357
2020-08-14 2020-06-30 13F APPLIED MATLS COM 038222105 518,676 -2,470 -0.47 31,354 31.30 2.2730
2020-05-15 2020-03-31 13F APPLIED MATLS COM 038222105 521,146 84,070 19.23 23,879 -10.50 1.9390
2020-02-14 2019-12-31 13F APPLIED MATLS COM 038222105 437,076 -1,775 -0.40 26,679 21.83 1.8449
2019-11-14 2019-09-30 13F APPLIED MATLS COM 038222105 438,851 -12,085 -2.68 21,899 8.13 1.5968
2019-08-14 2019-06-30 13F APPLIED MATLS COM 038222105 450,936 -12,954 -2.79 20,252 10.08 1.4305
2019-05-15 2019-03-31 13F APPLIED MATLS COM 038222105 463,890 463,890 18,398 1.1511
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.