Granahan Investment Management’s Castle Biosciences CSTL Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-110,824	Closed	-$2.95M	–	164
2024 Q4	$2.95M	Sell	110,824 -314,396	-74%	-$9.58M	0.12%	137
2024 Q3	$12.1M	Sell	425,220 -633,721	-60%	-$16.1M	0.48%	67
2024 Q2	$23.1M	Sell	1,058,941 -568,283	-35%	-$12.7M	0.92%	29
2024 Q1	$36M	Sell	1,627,224 -539,247	-25%	-$11.7M	1.27%	17
2023 Q4	$46.8M	Sell	2,166,471 -321,202	-13%	-$5.65M	1.54%	15
2023 Q3	$42M	Sell	2,487,673 -41,758	-2%	-$730K	1.5%	17
2023 Q2	$34.7M	Buy	2,529,431 +1,329,382	+111%	+$26.9M	1.07%	24
2023 Q1	$27.3M	Buy	1,200,049 +155,721	+15%	+$3.8M	0.83%	34
2022 Q4	$24.6M	Buy	1,044,328 +282,111	+37%	+$6.54M	0.75%	34
2022 Q3	$19.9M	Sell	762,217 -144,547	-16%	-$4.05M	0.65%	43
2022 Q2	$19.9M	Buy	906,764 +113,049	+14%	+$2.63M	0.68%	37
2022 Q1	$35.6M	Buy	793,715 +56,341	+8%	+$2.33M	0.88%	33
2021 Q4	$31.6M	Buy	737,374 +286,394	+64%	+$15M	0.65%	38
2021 Q3	$30M	Buy	450,980 +6,351	+1%	+$447K	0.57%	40
2021 Q2	$32.6M	Buy	444,629 +160,408	+56%	+$10.6M	0.61%	42
2021 Q1	$19.5M	Buy	284,221 +57,233	+25%	+$4.3M	0.41%	57
2020 Q4	$15.2M	Sell	226,988 -140,897	-38%	-$7.64M	0.34%	69
2020 Q3	$18.9M	Buy	367,885 +92,255	+33%	+$4.1M	0.64%	48
2020 Q2	$10.4M	Buy	275,630 +234,900	+577%	+$8.03M	0.38%	72
2020 Q1	$1.21M	Sell	40,730 -12,133	-23%	-$366K	0.07%	160
2019 Q4	$1.82M	Buy	+52,863	New	+$1.29M	0.08%	142