Alphabet Inc.
CL ˙ SNSE ˙ US02079K1079
SecurityCL:GOOG / Alphabet Inc.
InstitutionHighTower Advisors, LLC
Latest Disclosed Ownership2,143,650 shares
Latest Disclosed Value $ 614,949,083
HighTower Advisors, LLC ownership in GOOG / Alphabet Inc.

On May 5, 2026 - HighTower Advisors, LLC filed a 13F-HR form disclosing ownership of 2,143,650 shares of Alphabet Inc. (CL:GOOG) valued at $614,949,083 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 2,126,830 shares of Alphabet Inc.. This represents a change in shares of 0.79% during the quarter.

HighTower Advisors, LLC has a history of taking positions in derivatives of the underlying security (GOOG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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
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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.

CL:GOOG / Alphabet Inc. 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)
2026-05-05 2026-03-31 13F ALPHABET CAP STK CL C 02079K107 2,143,650 16,820 0.79 614,949 -7.86 0.6527
2026-02-06 2025-12-31 13F ALPHABET CAP STK CL C 02079K107 2,126,830 -67,956 -3.10 667,399 24.85 0.7299
2025-11-07 2025-09-30 13F ALPHABET CAP STK CL C 02079K107 2,194,786 49,159 2.29 534,556 40.45 0.6069
2025-08-11 2025-06-30 13F ALPHABET CAP STK CL C 02079K107 2,145,627 -25,389 -1.17 380,613 12.22 0.4768
2025-05-13 2025-03-31 13F ALPHABET CAP STK CL C 02079K107 2,171,016 -92,268 -4.08 339,178 -21.31 0.4603
2025-02-07 2024-12-31 13F ALPHABET CAP STK CL C 02079K107 2,263,284 15,439 0.69 431,020 14.67 0.5894
2024-11-14 2024-09-30 13F ALPHABET CAP STK CL C 02079K107 2,247,845 51,345 2.34 375,864 -6.72 0.5370
2024-08-13 2024-06-30 13F ALPHABET CAP STK CL C 02079K107 2,196,500 -65,570 -2.90 402,931 17.12 0.6229
2024-05-06 2024-03-31 13F ALPHABET CAP STK CL C 02079K107 2,262,070 -17,900 -0.79 344,034 7.11 0.5573
2024-02-12 2023-12-31 13F ALPHABET CAP STK CL C 02079K107 2,279,970 63,387 2.86 321,210 9.92 0.5391
2023-11-08 2023-09-30 13F ALPHABET CAP STK CL C 02079K107 2,216,583 83,348 3.91 292,220 13.34 0.5491
2023-08-14 2023-06-30 13F ALPHABET CAP STK CL C 02079K107 2,133,235 121,671 6.05 257,827 23.37 0.5075
2023-05-12 2023-03-31 13F ALPHABET CAP STK CL C 02079K107 2,011,564 -48,410 -2.35 208,981 14.19 0.4559
2023-02-09 2022-12-31 13F ALPHABET CAP STK CL C 02079K107 2,059,974 66,521 3.34 183,014 -4.63 0.4184
2022-11-09 2022-09-30 13F ALPHABET CAP STK CL C 02079K107 1,993,453 1,894,243 1,909.33 191,892 -11.53 0.5140
2022-08-10 2022-06-30 13F ALPHABET CAP STK CL C 02079K107 99,210 -2,338 -2.30 216,911 -23.63 0.5603
2022-05-12 2022-03-31 13F ALPHABET CAP STK CL C 02079K107 101,548 597 0.59 284,019 -2.83 0.6330
2022-02-10 2021-12-31 13F ALPHABET CAP STK CL C 02079K107 100,951 9,957 10.94 292,295 20.46 0.6407
2021-11-12 2021-09-30 13F ALPHABET CAP STK CL C 02079K107 90,994 12,839 16.43 242,643 23.52 0.6494
2021-08-06 2021-06-30 13F ALPHABET CAP STK CL C 02079K107 78,155 1,294 1.68 196,448 23.74 0.5688
2021-05-10 2021-03-31 13F ALPHABET CAP STK CL C 02079K107 76,861 2,684 3.62 158,753 21.69 0.5012
2021-02-10 2020-12-31 13F ALPHABET CAP STK CL C 02079K107 74,177 3,987 5.68 130,456 26.71 0.5434
2020-11-13 2020-09-30 13F ALPHABET CAP STK CL C 02079K107 70,190 2,853 4.24 102,958 8.37 0.4972
2020-08-10 2020-06-30 13F ALPHABET CAP STK CL C 02079K107 67,337 -3,721 -5.24 95,006 15.13 0.5184
2020-05-21 2020-03-31 13F ALPHABET CAP STK CL C 02079K107 71,058 4,836 7.30 82,519 -6.63 0.5349
2020-02-14 2019-12-31 13F ALPHABET CAP STK CL C 02079K107 66,222 1,381 2.13 88,380 11.99 0.5223
2019-11-12 2019-09-30 13F ALPHABET CAP STK CL C 02079K107 64,841 1,162 1.82 78,920 14.94 0.4297
2019-08-13 2019-06-30 13F ALPHABET CAP STK CL C 02079K107 63,679 6,226 10.84 68,664 1.74 0.4087
2019-05-15 2019-03-31 13F ALPHABET CAP STK CL C 02079K107 57,453 2,999 5.51 67,487 20.19 0.4508
2019-02-14 2018-12-31 13F ALPHABET CAP STK CL C 02079K107 54,454 11,903 27.97 56,151 10.42 0.4307
2018-11-09 2018-09-30 13F ALPHABET CAP STK CL C 02079K107 42,551 448 1.06 50,853 8.55 0.3666
2018-08-14 2018-06-30 13F ALPHABET CAP STK CL C 02079K107 42,103 158 0.38 46,847 8.78 0.3669
2018-05-15 2018-03-31 13F ALPHABET CAP STK CL C 02079K107 41,945 -2,313 -5.23 43,067 -6.48 0.3608
2018-02-14 2017-12-31 13F ALPHABET CAP STK CL C 02079K107 44,258 -3,174 -6.69 46,049 0.64 0.3780
2017-11-14 2017-09-30 13F ALPHABET CAP STK CL C 02079K107 47,432 4,368 10.14 45,754 16.66 0.3903
2017-09-22 2017-06-30 13F/A-1 ALPHABET CAP STK CL C 02079K107 43,064 3,153 7.90 39,221 18.87 0.3509
2017-08-14 2017-06-30 13F ALPHABET CAP STK CL C 02079K107 43,064 3,153 39,221
2017-05-15 2017-03-31 13F ALPHABET CAP STK CL C 02079K107 39,911 4,769 13.57 32,994 21.18 0.3158
2017-02-10 2016-12-31 13F ALPHABET CAP STK CL C 02079K107 35,142 4,083 13.15 27,227 12.18 0.2958
2016-11-14 2016-09-30 13F ALPHABET CAP STK CL C 02079K107 31,059 1,175 3.93 24,270 17.16 0.2812
2016-08-11 2016-06-30 13F ALPHABET CAP STK CL C 02079K107 29,884 -7,521 -20.11 20,716 -25.21 0.2621
2016-05-16 2016-03-31 13F ALPHABET CAP STK CL C 02079K107 37,405 5,205 16.16 27,700 12.91 0.0904
2016-05-18 2015-12-31 13F/A-1 ALPHABET CAP STK CL C 02079K107 32,200 32,200 24,532 0.2914
2016-02-12 2015-12-31 13F ALPHABET CAP STK CL C 02079K107 32,200 24,532
2015-11-16 2015-09-30 13F GOOGLE CL C 38259P706 0 -26,515 -100.00 0 -100.00
2015-08-11 2015-06-30 13F GOOGLE CL C 38259P706 26,515 870 3.39 13,812 -1.72 0.2214
2015-05-15 2015-03-31 13F GOOGLE CL C 38259P706 25,645 1,106 4.51 14,054 8.80 0.2091
2015-02-17 2014-12-31 13F GOOGLE CL C 38259P706 24,539 2,791 12.83 12,917 2.88 0.1977
2014-11-14 2014-09-30 13F GOOGLE CL C 38259P706 21,748 4,923 29.26 12,556 29.72 0.2121
2014-08-13 2014-06-30 13F GOOGLE CL C 38259P706 16,825 16,825 9,679 0.1679
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
(%)
2025-05-13 2025-03-31 13F ALPHABET CAP STK CL C Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-07 2024-12-31 13F ALPHABET CAP STK CL C Call 5,000 456 n/a n/a n/a
2024-11-14 2024-09-30 13F ALPHABET CAP STK CL C Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-13 2024-06-30 13F ALPHABET CAP STK CL C Call 300 2 n/a n/a n/a
2023-08-14 2023-06-30 13F ALPHABET CAP STK CL C Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-12 2023-03-31 13F ALPHABET CAP STK CL C Call 300 3 n/a n/a n/a
2016-08-11 2016-06-30 13F ALPHABET CAP STK CL C Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-16 2016-03-31 13F ALPHABET CAP STK CL C Call 100 16,540 n/a n/a n/a
2016-05-18 2015-12-31 13F/A ALPHABET CAP STK CL C Call 0 0 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
(%)
2026-02-06 2025-12-31 13F ALPHABET CAP STK CL C Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-07 2025-09-30 13F ALPHABET CAP STK CL C Put 1,300 21 n/a n/a n/a
2024-05-06 2024-03-31 13F ALPHABET CAP STK CL C Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F ALPHABET CAP STK CL C Put 1,200 273.83 9 -83.64 n/a n/a n/a
2023-11-08 2023-09-30 13F ALPHABET CAP STK CL C Put 321 -0.93 55 -60.99 n/a n/a n/a
2023-08-14 2023-06-30 13F ALPHABET CAP STK CL C Put 324 -97.92 141 1,310.00 n/a n/a n/a
2023-05-12 2023-03-31 13F ALPHABET CAP STK CL C Put 15,600 25,900.00 11 -9.09 n/a n/a n/a
2023-02-09 2022-12-31 13F ALPHABET CAP STK CL C Put 60 300.00 11 450.00 n/a n/a n/a
2022-11-09 2022-09-30 13F ALPHABET CAP STK CL C Put 15 -95.00 2 100.00 n/a n/a n/a
2022-08-10 2022-06-30 13F ALPHABET CAP STK CL C Put 300 9,900.00 1 -50.00 n/a n/a n/a
2022-05-12 2022-03-31 13F ALPHABET CAP STK CL C Put 3 0.00 2 n/a n/a n/a
2022-02-10 2021-12-31 13F ALPHABET CAP STK CL C Put 3 -99.00 0 n/a n/a n/a
2021-11-12 2021-09-30 13F ALPHABET CAP STK CL C Put 300 0 n/a n/a n/a
2021-08-06 2021-06-30 13F ALPHABET CAP STK CL C Put 0 -100.00 0 n/a n/a n/a
2021-05-10 2021-03-31 13F ALPHABET CAP STK CL C Put 1 -75.00 0 -100.00 n/a n/a n/a
2021-02-10 2020-12-31 13F ALPHABET CAP STK CL C Put 4 2 n/a n/a n/a
2020-05-21 2020-03-31 13F ALPHABET CAP STK CL C Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F ALPHABET CAP STK CL C Put 400 10 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.