How many shares of MRSN does CITADEL ADVISORS LLC own?

CITADEL ADVISORS LLC previously held 0 shares of MRSN (MERSANA THERAPEUTICS INC) before exiting the position in 2026-Q1.

What is CITADEL ADVISORS LLC's MRSN position worth?

CITADEL ADVISORS LLC's MRSN position was last reported at $0 in 2026-Q1 before the exit.

In 2026-Q1, CITADEL ADVISORS LLC exited their MRSN position entirely (-100.0% change in shares).

Based on available 13F filings, CITADEL ADVISORS LLC first reported a position in MRSN in 2018-Q4. They have held the position across 28 quarters.

Position history for CITADEL ADVISORS LLC's holdings in MERSANA THERAPEUTICS INC

Final Value

Final Shares

Total Value Change

-$200,000

Total Shares Change

-49,042

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Exited	0	-100.0%	$0	0.0%	$29.08	0
2025-Q4	New	22,493	-	$650,722	0.0%	$28.65	34
2025-Q1	Exited	0	-100.0%	$0	0.0%	$9.49	0
2024-Q4	Decreased	421,360	-90.5%	$602,545	0.0%	$35.50	0
2024-Q3	Increased	4.4M	+60.8%	$8.3M	0.0%	$46.25	40
2024-Q2	Decreased	2.7M	-20.7%	$5.5M	0.0%	$50.25	0
2024-Q1	Increased	3.5M	+79.5%	$15.5M	0.0%	$112.00	43
2023-Q4	Increased	1.9M	+19.3%	$4.5M	0.0%	$58.00	32
2023-Q3	Increased	1.6M	+21.2Kx	$2.1M	0.0%	$31.75	42
2023-Q2	Decreased	76	-99.9%	$250	0.0%	$80.00	0
2023-Q1	Decreased	112,661	-82.0%	$463,037	0.0%	$100.00	0
2022-Q4	Increased	625,576	+253.6%	$3.7M	0.0%	$146.50	43
2022-Q3	Decreased	176,903	-49.7%	$1.2M	0.0%	$160.50	0
2022-Q2	Decreased	351,415	-48.8%	$1.6M	0.0%	$111.25	0
2022-Q1	Increased	686,689	+122.6%	$2.7M	0.0%	$100.50	42
2021-Q4	Increased	308,507	+558.6%	$1.9M	0.0%	$160.00	42
2021-Q3	Decreased	46,843	-92.0%	$442,000	0.0%	$233.25	0
2021-Q2	Increased	589,123	+9.4%	$8M	0.0%	$332.00	30
2021-Q1	Decreased	538,407	-72.5%	$8.7M	0.0%	$382.75	0
2020-Q4	Increased	2M	+367.5%	$52M	0.0%	$664.50	47
2020-Q3	Decreased	418,195	-30.1%	$7.8M	0.0%	$469.50	0
2020-Q2	Increased	598,201	+29.7%	$14M	0.0%	$557.00	35
2020-Q1	Increased	461,186	+109.5%	$2.7M	0.0%	$164.00	42
2019-Q4	Increased	220,102	+136.2%	$1.3M	0.0%	$130.38	41
2019-Q3	Increased	93,174	+15.6%	$147,000	0.0%	$39.50	26
2019-Q2	Increased	80,621	+73.2%	$326,000	0.0%	$101.25	35
2019-Q1	Decreased	46,538	-5.1%	$245,000	0.0%	$131.50	0
2018-Q4	New	49,042	-	$200,000	0.0%	$101.25	32