Rock Springs Capital Management’s Jazz Pharmaceuticals JAZZ Stock Holding History

Rock Springs Capital Management’s Portfolio JAZZ Stock Details JAZZ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-5,750	Closed	-$1.09M	–	112
2026 Q1	$1.09M	Buy	5,750 +4,000	+229%	+$699K	0.06%	94
2025 Q4	$298K	Buy	+1,750	New	+$268K	0.02%	98
2021 Q1	–	Sell	-87,500	Closed	-$14.4M	–	163
2020 Q4	$14.4M	Buy	87,500 +30,000	+52%	+$4.47M	0.31%	94
2020 Q3	$8.2M	Buy	+57,500	New	+$7.13M	0.21%	110
2018 Q3	–	Sell	-98,000	Closed	-$16.9M	–	148
2018 Q2	$16.9M	Sell	98,000 -25,700	-21%	-$4.2M	0.65%	54
2018 Q1	$18.7M	Hold	123,700	–	–	0.8%	44
2017 Q4	$16.7M	Hold	123,700	–	–	0.76%	44
2017 Q3	$18.1M	Hold	123,700	–	–	0.83%	44
2017 Q2	$19.2M	Hold	123,700	–	–	0.97%	33
2017 Q1	$18M	Hold	123,700	–	–	1.04%	32
2016 Q4	$13.5M	Buy	123,700 +16,700	+16%	+$1.86M	0.9%	35
2016 Q3	$13M	Buy	107,000 +5,000	+5%	+$674K	0.81%	39
2016 Q2	$14.4M	Buy	102,000 +16,500	+19%	+$2.43M	1.07%	30
2016 Q1	$11.2M	Buy	85,500 +5,200	+6%	+$647K	0.94%	32
2015 Q4	$11.3M	Buy	80,300 +28,800	+56%	+$3.99M	0.86%	40
2015 Q3	$6.84M	Buy	51,500 +25,500	+98%	+$4.39M	0.56%	64
2015 Q2	$4.58M	Hold	26,000	–	–	0.33%	93
2015 Q1	$4.49M	Buy	26,000 +1,000	+4%	+$172K	0.42%	77
2014 Q4	$4.09M	Buy	25,000 +6,750	+37%	+$1.12M	0.48%	64
2014 Q3	$2.93M	Buy	+18,250	New	+$2.81M	0.45%	66
2014 Q2	–	Sell	-19,750	Closed	-$2.74M	–	80
2014 Q1	$2.74M	Buy	19,750 +6,750	+52%	+$1.02M	0.63%	51
2013 Q4	$1.65M	Buy	+13,000	New	+$1.35M	0.59%	46

Other funds holding JAZZ

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

Rock Springs Capital Management's JAZZ Position: Q2 2026 in Review

Rock Springs Capital Management sold out of Jazz Pharmaceuticals (JAZZ) in Q2 2026, closing a stake of 5,750 shares — an estimated $1.09M sold.

Rock Springs Capital Management first reported a position in JAZZ in Q4 2013 and held it in 22 quarters. The position peaked at $19.2M in Q2 2017. 641 funds tracked by Wall St. Rank hold JAZZ as of Q2 2026.

Rock Springs Capital Management reported no remaining Jazz Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
Rock Springs Capital Management sold 5,750 Jazz Pharmaceuticals shares in Q2 2026, an estimated $1.09M.
Rock Springs Capital Management first reported a position in Jazz Pharmaceuticals in Q4 2013 and held it in 22 quarters.
Rock Springs Capital Management's Jazz Pharmaceuticals position peaked at $19.2M in Q2 2017.
641 funds tracked by Wall St. Rank held Jazz Pharmaceuticals as of Q2 2026.

Based on Rock Springs Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.