Insider Trading History of Nelsen Robert

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Nelsen Robert since 2015. This trader's CIK number is 1219042. At the time of last reporting, Nelsen Robert was the Director of Prime Medicine, Inc.. (stock ticker symbol PRME). Also see all insider trading activities at Prime Medicine, Inc..

Note that in the past NELSEN ROBERT also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Neumora Therapeutics, Inc. (NMRA) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2023	NMRA	507,064	$5,952,206	0	$0	0	$0

Yearly summary of insider trading at Syros Pharmaceuticals, Inc. (SYRS) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2019	SYRS	0	$0	395,086	$2,932,670	0	$0
2016	SYRS	400,000	$5,000,000	0	$0	0	$0

Yearly summary of insider trading at Kythera Biopharmaceuticals Inc (KYTH) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2015	KYTH	0	$0	0	$0	5,987	$112,705

Yearly summary of insider trading at Quanterix Corp (QTRX) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2017	QTRX	266,000	$3,990,000	0	$0	0	$0

Yearly summary of insider trading at Adesto Technologies Corp (IOTS) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2015	IOTS	400,000	$2,000,000	0	$0	0	$0

Yearly summary of insider trading at Vir Biotechnology, Inc. (VIR) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2019	VIR	1,000,000	$20,000,000	0	$0	0	$0

Yearly summary of insider trading at Sienna Biopharmaceuticals, Inc. (SNNA) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2019	SNNA	6,497,400	$16,243,500	0	$0	0	$0

Yearly summary of insider trading at Agios Pharmaceuticals, Inc. (AGIO) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2017	AGIO	0	$0	378,446	$18,771,167	0	$0

Yearly summary of insider trading at Prime Medicine, Inc. (PRME) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2025	PRME	3,030,300	$9,999,990	0	$0	0	$0
2024	PRME	3,200,000	$20,000,000	0	$0	0	$0
2022	PRME	800,000	$13,600,000	0	$0	0	$0

Yearly summary of insider trading at Karuna Therapeutics, Inc. (KRTX) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2019	KRTX	200,000	$3,200,000	0	$0	0	$0

Yearly summary of insider trading at Metsera, Inc. (MTSR) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2025	MTSR	2,222,222	$39,999,996	0	$0	0	$0

Yearly summary of insider trading at Denali Therapeutics Inc. (DNLI) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2021	DNLI	0	$0	0	$0	3,253	$0

Yearly summary of insider trading at Pulmatrix, Inc. (PULM) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2018	PULM	1,150,000	$0	0	$0	0	$0
2015	PULM	72,750	$500,156	0	$0	0	$0

Yearly summary of insider trading at 908 Devices Inc. (MASS) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2020	MASS	300,000	$6,000,000	0	$0	0	$0

Yearly summary of insider trading at Sana Biotechnology, Inc. (SANA) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2024	SANA	1,818,181	$9,999,995	0	$0	0	$0

Yearly summary of insider trading at Twist Bioscience Corp (TWST) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2018	TWST	75,000	$1,050,000	0	$0	0	$0

Yearly summary of insider trading at Bellerophon Therapeutics, Inc. (BLPH) by Nelsen Robert

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2015	BLPH	212,666	$2,551,992	0	$0	0	$0

Insider trading activities at 17 companies by Nelsen Robert:

1. Neumora Therapeutics, Inc. (NMRA)

2. Syros Pharmaceuticals, Inc. (SYRS)

3. Kythera Biopharmaceuticals Inc (KYTH)

4. Quanterix Corp (QTRX)

5. Adesto Technologies Corp (IOTS)

6. Vir Biotechnology, Inc. (VIR)

7. Sienna Biopharmaceuticals, Inc. (SNNA)

8. Agios Pharmaceuticals, Inc. (AGIO)

9. Prime Medicine, Inc. (PRME)

10. Karuna Therapeutics, Inc. (KRTX)

11. Metsera, Inc. (MTSR)

12. Denali Therapeutics Inc. (DNLI)

13. Pulmatrix, Inc. (PULM)

14. 908 Devices Inc. (MASS)

15. Sana Biotechnology, Inc. (SANA)

16. Twist Bioscience Corp (TWST)

17. Bellerophon Therapeutics, Inc. (BLPH)

Table 1. Insider trading of Neumora Therapeutics, Inc. (NMRA) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2023-11-13	NMRA	Buy	31,653	11.75	371,922
2023-11-14	NMRA	Buy	3,357	11.98	40,216
2023-11-10	NMRA	Buy	17,275	11.56	199,699
2023-11-09	NMRA	Buy	31,079	10.53	327,261
2023-11-08	NMRA	Buy	92,251	11.29	1,041,052
2023-11-07	NMRA	Buy	30,192	11.50	347,208
2023-11-03	NMRA	Buy	22,420	11.38	255,139
2023-11-06	NMRA	Buy	43,082	11.55	497,597
2023-09-29	NMRA	Buy	34,560	13.98	483,148
2023-09-28	NMRA	Buy	41,951	13.38	561,094
2023-09-26	NMRA	Buy	34,000	11.73	398,820
2023-09-27	NMRA	Buy	24,504	12.31	301,644
2023-09-22	NMRA	Buy	40,000	11.14	445,600
2023-09-25	NMRA	Buy	60,740	11.22	681,806

Table 2. Insider trading of Syros Pharmaceuticals, Inc. (SYRS) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2019-07-15	SYRS	Sale	2,700	8.27	22,315
2019-07-16	SYRS	Sale	25,779	7.81	201,282
2019-07-17	SYRS	Sale	34,521	7.70	265,673
2019-03-12	SYRS	Sale	40,092	7.37	295,357
2019-03-13	SYRS	Sale	84,411	8.04	678,917
2019-03-14	SYRS	Sale	43,000	8.15	350,450
2019-03-11	SYRS	Sale	44,878	6.49	291,347
2019-03-07	SYRS	Sale	35,209	6.87	242,026
2019-03-08	SYRS	Sale	84,496	6.93	585,303
2016-07-06	SYRS	Buy	400,000	12.50	5,000,000

Table 3. Insider trading of Kythera Biopharmaceuticals Inc (KYTH) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2015-03-24	KYTH	Option Ex	5,987	18.82	112,705

Table 4. Insider trading of Quanterix Corp (QTRX) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2017-12-11	QTRX	Buy	266,000	15.00	3,990,000

Table 5. Insider trading of Adesto Technologies Corp (IOTS) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2015-10-26	IOTS	Buy	400,000	5.00	2,000,000

Table 6. Insider trading of Vir Biotechnology, Inc. (VIR) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2019-10-16	VIR	Buy	1,000,000	20.00	20,000,000

Table 7. Insider trading of Sienna Biopharmaceuticals, Inc. (SNNA) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2019-02-22	SNNA	Buy	2,165,800	2.50	5,414,500
2019-02-22	SNNA	Buy	2,165,800	2.50	5,414,500
2019-02-22	SNNA	Buy	2,165,800	2.50	5,414,500

Table 8. Insider trading of Agios Pharmaceuticals, Inc. (AGIO) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2017-02-27	AGIO	Sale	195,223	49.26	9,616,294
2017-02-28	AGIO	Sale	47,859	49.82	2,384,431
2017-02-23	AGIO	Sale	50,996	48.24	2,459,894
2017-02-22	AGIO	Sale	47,938	50.12	2,402,892
2017-02-21	AGIO	Sale	36,430	52.37	1,907,656

Table 9. Insider trading of Prime Medicine, Inc. (PRME) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2025-08-01	PRME	Buy	3,030,300	3.30	9,999,990
2024-02-15	PRME	Buy	3,200,000	6.25	20,000,000
2022-10-24	PRME	Buy	800,000	17.00	13,600,000

Table 10. Insider trading of Karuna Therapeutics, Inc. (KRTX) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2019-07-02	KRTX	Buy	200,000	16.00	3,200,000

Table 11. Insider trading of Metsera, Inc. (MTSR) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2025-02-03	MTSR	Buy	2,222,222	18.00	39,999,996

Table 12. Insider trading of Denali Therapeutics Inc. (DNLI) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2021-06-01	DNLI	Option Ex	3,253	.00	0

Table 13. Insider trading of Pulmatrix, Inc. (PULM) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2018-04-03	PULM	Buy	1,150,000	.00	0
2015-06-16	PULM	Buy	72,750	6.88	500,156

Table 14. Insider trading of 908 Devices Inc. (MASS) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2020-12-22	MASS	Buy	300,000	20.00	6,000,000

Table 15. Insider trading of Sana Biotechnology, Inc. (SANA) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2024-02-08	SANA	Buy	1,818,181	5.50	9,999,995

Table 16. Insider trading of Twist Bioscience Corp (TWST) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2018-11-02	TWST	Buy	75,000	14.00	1,050,000

Table 17. Insider trading of Bellerophon Therapeutics, Inc. (BLPH) by Nelsen Robert

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2015-02-19	BLPH	Buy	212,666	12.00	2,551,992

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Nelsen Robert (Director of Prime Medicine, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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