California State Teachers Retirement System Amgen Inc Transaction History

California State Teachers Retirement System

$94.5 Billion
Q3 2025

A detailed history of California State Teachers Retirement System transactions in Amgen Inc stock. As of the latest transaction made, California State Teachers Retirement System holds 861,971 shares of AMGN stock, worth $295 Million. This represents 0.26% of its overall portfolio holdings.

Number of Shares

861,971

Previous 855,500 0.76%

Holding current value

$295 Million

Previous $239 Million 1.84%

% of portfolio

0.26%

Previous 0.27%

35 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$271.18 - $309.22 $1.75 Million - $2 Million	6,471 Added 0.76%	861,971 $243 Million
Q2 2025 Aug 14, 2025	BUY	$262.28 - $309.85 $3.52 Million - $4.16 Million	13,432 Added 1.6%	855,500 $239 Million
Q1 2025 May 15, 2025	SELL	$258.59 - $327.36 $700,520 - $886,818	-2,709 Reduced 0.32%	842,068 $262 Million
Q4 2024 Feb 14, 2025	SELL	$258.78 - $328.31 $6.14 Million - $7.79 Million	-23,730 Reduced 2.73%	844,777 $220 Million
Q3 2024 Apr 04, 2025	BUY	$309.38 - $337.38 $7.34 Million - $8.01 Million	23,730 Added 2.81%	868,507 $280 Million

Q3 2024 Nov 14, 2024	SELL	$309.38 - $337.38 $879,567 - $959,171	-2,843 Reduced 0.33%	868,507 $280 Million
Q2 2024 Apr 08, 2025	BUY	$262.75 - $319.31 $6.98 Million - $8.49 Million	26,573 Added 3.15%	871,350 $272 Million
Q2 2024 Aug 14, 2024	SELL	$262.75 - $319.31 $987,677 - $1.2 Million	-3,759 Reduced 0.43%	871,350 $272 Million
Q1 2024 May 15, 2024	BUY	$268.87 - $324.56 $1.83 Million - $2.21 Million	6,798 Added 0.78%	875,109 $249 Million
Q4 2023 Feb 13, 2024	BUY	$255.7 - $288.46 $3.37 Million - $3.8 Million	13,168 Added 1.54%	868,311 $250 Million
Q3 2023 Nov 14, 2023	SELL	$218.65 - $271.46 $7.02 Million - $8.71 Million	-32,098 Reduced 3.62%	855,143 $230 Million
Q2 2023 Aug 21, 2023	SELL	$214.27 - $253.37 $3.78 Million - $4.47 Million	-17,644 Reduced 1.95%	887,241 $197 Million
Q1 2023 May 09, 2023	SELL	$225.79 - $275.2 $2.37 Million - $2.89 Million	-10,494 Reduced 1.15%	904,885 $219 Million
Q4 2022 Feb 14, 2023	BUY	$229.03 - $291.01 $2.75 Million - $3.49 Million	11,990 Added 1.33%	915,379 $240 Million
Q3 2022 Nov 18, 2022	SELL	$224.46 - $253.15 $8.2 Million - $9.24 Million	-36,517 Reduced 3.89%	903,389 $204 Million
Q2 2022 Aug 15, 2022	SELL	$230.71 - $256.74 $4.27 Million - $4.75 Million	-18,517 Reduced 1.93%	939,906 $229 Million
Q1 2022 May 16, 2022	SELL	$219.27 - $242.57 $14.7 Million - $16.3 Million	-67,009 Reduced 6.53%	958,423 $232 Million
Q4 2021 Feb 15, 2022	BUY	$198.88 - $227.6 $5.26 Million - $6.03 Million	26,472 Added 2.65%	1,025,432 $231 Million
Q3 2021 Nov 15, 2021	SELL	$212.27 - $248.7 $6.87 Million - $8.05 Million	-32,365 Reduced 3.14%	998,960 $212 Million
Q2 2021 Aug 16, 2021	SELL	$233.58 - $259.14 $26.8 Million - $29.7 Million	-114,593 Reduced 10.0%	1,031,325 $251 Million
Q1 2021 May 18, 2021	SELL	$221.91 - $258.6 $2.05 Million - $2.39 Million	-9,257 Reduced 0.8%	1,145,918 $285 Million
Q4 2020 Feb 16, 2021	SELL	$216.38 - $257.67 $125,284 - $149,190	-579 Reduced 0.05%	1,155,175 $266 Million
Q3 2020 Nov 17, 2020	BUY	$234.65 - $260.95 $3.21 Million - $3.57 Million	13,664 Added 1.2%	1,155,754 $294 Million
Q2 2020 Aug 17, 2020	BUY	$197.81 - $242.74 $11.7 Million - $14.4 Million	59,316 Added 5.48%	1,142,090 $269 Million
Q1 2020 May 13, 2020	SELL	$182.24 - $241.7 $3.74 Million - $4.96 Million	-20,522 Reduced 1.86%	1,082,774 $220 Million
Q4 2019 Feb 14, 2020	BUY	$189.21 - $243.2 $15.3 Million - $19.6 Million	80,648 Added 7.89%	1,103,296 $266 Million
Q3 2019 Nov 15, 2019	SELL	$174.11 - $208.62 $831,897 - $996,786	-4,778 Reduced 0.47%	1,022,648 $198 Million
Q2 2019 Aug 14, 2019	SELL	$166.7 - $195.41 $18.4 Million - $21.6 Million	-110,362 Reduced 9.7%	1,027,426 $189 Million
Q1 2019 May 09, 2019	SELL	$180.87 - $203.88 $2.31 Million - $2.61 Million	-12,796 Reduced 1.11%	1,137,788 $216 Million
Q4 2018 Feb 13, 2019	BUY	$178.4 - $208.25 $1.13 Million - $1.32 Million	6,338 Added 0.55%	1,150,584 $224 Million
Q3 2018 Nov 14, 2018	SELL	$185.29 - $208.89 $12,043 - $13,577	-65 Reduced 0.01%	1,144,246 $237 Million
Q2 2018 Aug 14, 2018	SELL	$166.05 - $186.51 $23.8 Million - $26.7 Million	-143,238 Reduced 11.12%	1,144,311 $211 Million
Q1 2018 May 15, 2018	SELL	$169.43 - $198.0 $10.9 Million - $12.8 Million	-64,551 Reduced 4.77%	1,287,549 $220 Million
Q4 2017 Feb 14, 2018	BUY	$168.79 - $188.59 $12.3 Million - $13.8 Million	72,974 Added 5.7%	1,352,100 $235 Million
Q3 2017 Nov 13, 2017	BUY	$167.29 - $191.0 $214 Million - $244 Million	1,279,126	1,279,126 $238 Million

Others Institutions Holding AMGN

# of Institutions

3,274

Shares Held

428M

Call Options Held

6.11M

Put Options Held

5.85M

View Full List

About AMGEN INC

Ticker AMGN
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—General
Shares Outstandng 534,931,008
Market Cap $183B
Description
Amgen Inc. discovers, develops, manufactures, and delivers human therapeutics worldwide. It focuses on inflammation, oncology/hematology, bone health, cardiovascular disease, nephrology, and neuroscience areas. The company's products include Enbrel to treat plaque psoriasis, rheumatoid arthritis, and psoriatic arthritis; Neulasta that reduces th...

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California State Teachers Retirement System Amgen Inc Transaction History