2seventy bio, Inc.

TSVTDelisted May 13, 2025

Industry: Pharmaceutical Preparations
SEC CIK: 0001860782

SEC filings (opens in a new tab)

2seventy bio, Inc. was delisted on May 13, 2025; its insiders filed their last Form 4 on May 15, 2025; 140 institutions reported holding it in 13F filings for Q1 2025, worth $234.5M in total; no superinvestor held it.

Q1 2025 vs. Q4 2024

How the institutions holding 2seventy bio, Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of TSVT: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	117	2	140	+25
Shares	46.0M	103.7K	47.5M	+1.68M (+3.7%)
Value	$135.1M	$304.8K	$234.5M	+$99.7M (+73.9%)

2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (46)

Institutions that held 2seventy bio, Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to TSVT in Q1 2025
Institution	Shares	Value	% of portfolio
Beryl Capital Management LLC	4,250,000	$21.0M	7.84%
Man Group plc	2,043,026	$10.1M	0.03%
Glazer Capital, LLC	1,328,166	$6.56M	0.30%
Vivaldi Asset Management, LLC	1,143,962	$5.65M	0.41%
Groupe la Francaise	480,000	$2.38M	0.05%
Gardner Lewis Asset Management L P	395,936	$1.96M	0.47%
Balyasny Asset Management LLC	394,013	$1.95M	0.00%
DeepCurrents Investment Group LLC	390,169	$1.93M	0.07%
Oxford Asset Management LLP	352,739	$1.74M	0.80%
Credit Industriel Et Commercial	320,000	$1.58M	0.29%
Gabelli Funds LLC	252,500	$1.25M	0.01%
Abc Arbitrage SA	200,792	$991.9K	0.18%
Gabelli & Co Investment Advisers, Inc.	192,450	$950.7K	0.14%
BCK Capital Management LP	191,000	$943.5K	0.73%
Sagefield Capital LP	115,889	$572.5K	0.07%
Oddo BHF Asset Management SAS	110,608	$546.4K	0.02%
Water Island Capital LLC	104,006	$513.8K	0.09%
Nuveen, LLC	103,648	$512.0K	0.00%
Verition Fund Management LLC	62,476	$308.6K	0.00%
SCS Capital Management LLC	41,392	$204.5K	0.00%
Murchinson Ltd.	40,000	$197.6K	0.03%
HRT Financial LP	29,515	$145.0K	0.00%
Panagora Asset Management Inc	22,741	$112.3K	0.00%
AQR Capital Management LLC	21,417	$106.1K	0.00%
CSS LLC	19,998	$98.8K	0.01%
Concurrent Investment Advisors, LLC	17,900	$88.4K	0.00%
Jane Street Group, LLC	17,708	$87.5K	0.00%
Wolverine Asset Management LLC	17,269	$85.3K	0.00%
Bank of Montreal	15,653	$77.3K	0.00%
Longfellow Investment Management Co LLC	14,825	$73.2K	0.02%
FORA Capital, LLC	12,709	$62.8K	0.01%
CIBC World Markets Corp	10,845	$53.6K	0.00%
PenderFund Capital Management Ltd.	71,600	$17.1K	0.01%
CWM, LLC	1,699	$8.00K	0.00%
Picton Mahoney Asset Management	1,581	$8.00K	0.00%
Farther Finance Advisors, LLC	1,304	$6.46K	0.00%
Jones Financial Companies LLLP	492	$2.44K	0.00%
Daiwa Securities Group Inc.	300	$1.00K	0.00%
Coldstream Capital Management Inc	172	$850	0.00%
Caitong International Asset Management Co., Ltd	90	$445	0.00%
Group One Trading, L.P.	50	$247	0.00%
1620 Investment Advisors, Inc.	16	$79	0.00%
South State Corp.	13	$64	0.00%
Clean Yield Group	3	$15	0.00%
Assetmark, Inc	2	$10	0.00%
TSFG, LLC	10	$0	0.00%

Sold out (21)

Institutions that held 2seventy bio, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of TSVT in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Kynam Capital Management, LP	5,953,825	$17.5M
Eversept Partners, LP	1,003,678	$2.95M
Western Standard LLC	788,350	$2.32M
Venator Management LLC	575,000	$1.69M
Fund 1 Investments, LLC	343,504	$1.01M
Point72 Asset Management, L.P.	310,637	$913.3K
Stonepine Capital Management, LLC	300,000	$882.0K
BBR Partners, LLC	180,000	$529.2K
Bridgeway Capital Management, LLC	132,400	$389.3K
PDT Partners, LLC	64,769	$190.4K
Graham Capital Management, L.P.	32,426	$95.3K
Raymond James Financial Inc	17,547	$51.6K
Martingale Asset Management L P	15,500	$45.6K
Citadel Advisors LLC	12,318	$36.2K
R Squared Ltd	690	$2.03K
GWM Advisors LLC	195	$573
MAI Capital Management	100	$294
Bartlett & Co. Wealth Management LLC	33	$97
Fairfield Financial Advisors, LTD	20	$59
Cullen/Frost Bankers, Inc.	3	$9
Harbour Investments, Inc.	1	$3

Not filed for Q1 2025 yet (2)

Institutions that held 2seventy bio, Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding TSVT in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	103,648	$304.7K
Global Retirement Partners, LLC	15	$44