GAMMA Investing’s Castle Biosciences CSTL Stock Holding History

GAMMA Investing’s Portfolio CSTL Stock Details CSTL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$782	Buy	22 +3	+16%	+$91	﹤0.01%	4143
2026 Q2	$453	Sell	19 -27	-59%	-$601	﹤0.01%	3997
2026 Q1	$1.13K	Sell	46 -6	-12%	-$197	﹤0.01%	3808
2025 Q4	$2.02K	Hold	52	–	–	﹤0.01%	3595
2025 Q3	$1.18K	Sell	52 -80	-61%	-$1.62K	﹤0.01%	3581
2025 Q2	$2.7K	Sell	132 -86	-39%	-$1.59K	﹤0.01%	3318
2025 Q1	$4.36K	Sell	218 -4	-2%	-$99	﹤0.01%	3136
2024 Q4	$5.92K	Buy	222 +49	+28%	+$1.49K	﹤0.01%	2847
2024 Q3	$4.93K	Buy	173 +36	+26%	+$916	﹤0.01%	2748
2024 Q2	$2.98K	Buy	137 +16	+13%	+$357	﹤0.01%	2751
2024 Q1	$2.68K	Buy	121 +100	+476%	+$2.18K	﹤0.01%	2651
2023 Q4	$485	Buy	+21	New	+$370	﹤0.01%	2972

Other funds holding CSTL

Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return

FBT

First Bank & Trust Brookings, South Dakota $687M AUM 18.35% 1-Year Est. Return

Diversify Advisory Services Sandy, Utah $6.69B AUM 18.85% 1-Year Est. Return

Diversify Wealth Management Sandy, Utah $6.69B AUM 22.4% 1-Year Est. Return

Green Alpha Advisors Niwot, Colorado $148M AUM 98.22% 1-Year Est. Return

Oak Harvest Investment Services Houston, Texas $1.07B AUM 32.83% 1-Year Est. Return

Wealth Enhancement Advisory Services Plymouth, Minnesota $67.3B AUM 21.9% 1-Year Est. Return

Farther Finance Advisors San Francisco, California $14.2B AUM 18.33% 1-Year Est. Return

Newbridge Financial Services Group Boca Raton, Florida $868M AUM 42.47% 1-Year Est. Return

Nisa Investment Advisors St. Louis, Missouri $34.7B AUM 25.93% 1-Year Est. Return

GAMMA Investing's CSTL Position: Q3 2026 in Review

GAMMA Investing increased its Castle Biosciences (CSTL) stake by 16% in Q3 2026, buying an estimated $91 and bringing the position to 22 shares worth $782. The position accounts for ﹤0.01% of the portfolio, ranked #4143.

GAMMA Investing first reported a position in CSTL in Q4 2023 and has held it in 12 quarters since. The position peaked at $5.92K in Q4 2024. 17 funds tracked by Wall St. Rank hold CSTL as of Q3 2026.

GAMMA Investing held 22 shares of Castle Biosciences worth $782 as of Q3 2026.
GAMMA Investing bought 3 Castle Biosciences shares in Q3 2026, an estimated $91.
Castle Biosciences made up ﹤0.01% of GAMMA Investing's portfolio in Q3 2026, its #4143 holding.
GAMMA Investing first reported a position in Castle Biosciences in Q4 2023 and has held it in 12 quarters since.
GAMMA Investing's Castle Biosciences position peaked at $5.92K in Q4 2024.
17 funds tracked by Wall St. Rank held Castle Biosciences as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.