Alphabet Inc.
CL ˙ SNSE ˙ US02079K1079
SecurityCL:GOOG / Alphabet Inc.
InstitutionRosenberg Matthew Hamilton
Latest Disclosed Ownership11,766 shares
Latest Disclosed Value $ 3,375,195
Rosenberg Matthew Hamilton reports 2.96% increase in ownership of GOOG / Alphabet Inc.

On April 6, 2026 - Rosenberg Matthew Hamilton filed a 13F-HR form disclosing ownership of 11,766 shares of Alphabet Inc. (CL:GOOG) valued at $3,375,195 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 11,428 shares of Alphabet Inc.. This represents a change in shares of 2.96% 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)
2026-04-06 2026-03-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,766 338 2.96 3,375 -5.88 0.6916
2026-01-05 2025-12-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,428 -61 -0.53 3,586 28.16 0.7427
2025-11-10 2025-09-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,489 63 0.55 2,798 38.10 0.6048
2025-07-28 2025-06-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,426 226 2.02 2,027 15.84 0.4714
2025-04-28 2025-03-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,200 -256 -2.23 1,750 -19.81 0.4388
2025-01-14 2024-12-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,456 -268 -2.29 2,182 11.28 0.5669
2024-10-28 2024-09-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,724 358 3.15 1,960 -6.49 0.5129
2024-07-26 2024-06-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,366 498 4.58 2,097 23.29 0.6194
2024-04-22 2024-03-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 10,868 -268 -2.41 1,701 8.35 0.4914
2024-01-16 2023-12-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,136 62 0.56 1,569 7.47 0.4827
2023-10-11 2023-09-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,074 -246 -2.17 1,460 6.65 0.4864
2023-07-26 2023-06-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 11,320 -1,242 -9.89 1,369 4.82 0.4630
2023-04-17 2023-03-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 12,562 0 0.00 1,306 17.24 0.4215
2023-01-19 2022-12-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 12,562 -60 -0.48 1,115 -8.24 0.3776
2022-10-21 2022-09-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 12,622 11,995 1,913.08 1,214 -11.26 0.4694
2022-07-15 2022-06-30 13F ALPHABET INC CAP STK CL C Stock 02079K107 627 24 3.98 1,368 -18.76 0.5159
2022-04-14 2022-03-31 13F ALPHABET INC CAP STK CL C Stock 02079K107 603 1 0.17 1,684 -3.33 0.5890
2022-01-20 2021-12-31 13F ALPHABET INC CAP STK CL C 02079K107 602 1 0.17 1,742 8.74 0.6200
2021-10-12 2021-09-30 13F ALPHABET INC CAP STK CL C 02079K107 601 85 16.47 1,602 23.90 0.6328
2021-07-26 2021-06-30 13F ALPHABET CAP STK CL C 02079K107 516 -4 -0.77 1,293 20.17 0.6730
2021-04-30 2021-03-31 13F ALPHABET CAP STK CL C 02079K107 520 -9 -1.70 1,076 16.07 0.6139
2021-02-03 2020-12-31 13F ALPHABET INC CAP STK CAP STK CL C 02079K107 529 0 0.00 927 19.31 0.5785
2020-10-16 2020-09-30 13F ALPHABET CAP STK CL C 02079K107 529 13 2.52 777 6.58 0.5708
2020-08-04 2020-06-30 13F ALPHABET CAP STK CL C 02079K107 516 125 31.97 729 60.22 0.5806
2020-05-14 2020-03-31 13F ALPHABET CAP STK CL C 02079K107 391 391 455 0.4526
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.