30% off. Use code SUMMERSALE30 at checkout for 30% off for 12 months on Plus, Pro and Premium subscriptions. Subscribe now

RA CAPITAL MANAGEMENT, L.P.

Track

Insider profile

Performance

Overall performance
2.9
Performance over holding periods
4.2
30 days 90 days 120 days
Average return 5% 8.2% 15.1%
Success rate 44% 68% 82%
Transactions
247 52% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Performance for realised trades
4.4
Average return -23%
Success rate 73%
Average holding period 220
Transactions 28
Ranking by realised performance
RA CAPITAL MANAGEMENT, L.P.'s trades of Hemab Therapeutics Holdings Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-17 2026-06-16
B Purchase
48,027 +32.7%
138.71
US$4,609,094 		48,027 +32.7% 138.71 US$4,609,094
2026-06-16 2026-06-16
B Purchase
99,607 +12.6%
377.46
US$3,123,948 		99,607 +12.6% 377.46 US$3,123,948
2026-06-16 2026-06-16
S Sale
15,106 -33.3%
275.75
US$2,213,139 		15,106 -33.3% 275.75 US$2,213,139
2026-06-16 2026-06-16
S Sale
139,686 -2.9%
0.37
US$51,684 		139,686 -2.9% 0.37 US$51,684
2026-06-17 2026-06-15
B Purchase
6,146 +0.1%
24.89
US$152,974 		6,146 +0.1% 24.89 US$152,974
2026-06-16 2026-06-15
B Purchase
15,414 +0.1%
8.99
US$138,572 		15,414 +0.1% 8.99 US$138,572
2026-06-16 2026-06-15
S Sale
8,554 -2.4%
0.39
US$3,336 		8,554 -2.4% 0.39 US$3,336
2026-06-16 2026-06-15
S Sale
120,216 -2.4%
0.39
US$46,884 		120,216 -2.4% 0.39 US$46,884
2026-06-16 2026-06-12
B Purchase
391,019 +2.4%
8.57
US$3,351,033 		391,019 +2.4% 8.57 US$3,351,033
2026-06-16 2026-06-12
S Sale
11,322 -3.1%
0.40
US$4,529 		11,322 -3.1% 0.40 US$4,529
2026-06-16 2026-06-12
S Sale
159,119 -3.1%
0.40
US$63,648 		159,119 -3.1% 0.40 US$63,648
2026-06-15 2026-06-11
B Purchase
1,460,397 +122.9%
20.00
US$29,207,940 		1,460,397 +122.9% 20.00 US$29,207,940
2026-06-15 2026-06-11
B Purchase
19,728,353 +300.9%
20.00
US$394,567,060 		19,728,353 +300.9% 20.00 US$394,567,060
2026-06-11 2026-06-11
S Sale
17,437 -4.6%
0.38
US$6,626 		17,437 -4.6% 0.38 US$6,626
2026-06-11 2026-06-11
S Sale
17,437 -4.6%
0.38
US$6,626 		17,437 -4.6% 0.38 US$6,626
2026-06-11 2026-06-11
S Sale
245,066 -4.6%
0.38
US$93,125 		245,066 -4.6% 0.38 US$93,125
2026-06-11 2026-06-11
S Sale
245,066 -4.6%
0.38
US$93,125 		245,066 -4.6% 0.38 US$93,125
2026-06-11 2026-06-11
B Purchase
548,580 +3.5%
7.91
US$4,339,268 		548,580 +3.5% 7.91 US$4,339,268
2026-06-11 2026-06-11
S Sale
17,437 -4.6%
0.38
US$6,626 		17,437 -4.6% 0.38 US$6,626
2026-06-11 2026-06-11
S Sale
245,066 -4.6%
0.38
US$93,125 		245,066 -4.6% 0.38 US$93,125
2026-06-11 2026-06-11
B Purchase
548,580 +3.5%
7.91
US$4,339,268 		548,580 +3.5% 7.91 US$4,339,268
2026-06-11 2026-06-10
S Sale
3,051 -0.8%
0.37
US$1,129 		3,051 -0.8% 0.37 US$1,129
2026-06-11 2026-06-10
S Sale
3,051 -0.8%
0.37
US$1,129 		3,051 -0.8% 0.37 US$1,129
2026-06-11 2026-06-10
S Sale
42,872 -0.8%
0.37
US$15,863 		42,872 -0.8% 0.37 US$15,863
2026-06-11 2026-06-10
S Sale
42,872 -0.8%
0.37
US$15,863 		42,872 -0.8% 0.37 US$15,863
2026-06-11 2026-06-10
B Purchase
103 +0.0%
7.00
US$721 		103 +0.0% 7.00 US$721
2026-06-11 2026-06-10
S Sale
3,051 -0.8%
0.37
US$1,129 		3,051 -0.8% 0.37 US$1,129
2026-06-11 2026-06-10
S Sale
42,872 -0.8%
0.37
US$15,863 		42,872 -0.8% 0.37 US$15,863
2026-06-11 2026-06-10
B Purchase
103 +0.0%
7.00
US$721 		103 +0.0% 7.00 US$721
2026-06-11 2026-06-09
S Sale
24,565 -6.0%
0.37
US$9,089 		24,565 -6.0% 0.37 US$9,089
2026-06-11 2026-06-09
S Sale
24,565 -6.0%
0.37
US$9,089 		24,565 -6.0% 0.37 US$9,089
2026-06-11 2026-06-09
S Sale
24,565 -6.0%
0.37
US$9,089 		24,565 -6.0% 0.37 US$9,089
2026-06-11 2026-06-09
S Sale
345,235 -6.0%
0.37
US$127,737 		345,235 -6.0% 0.37 US$127,737
2026-06-11 2026-06-09
B Purchase
479,039 +3.2%
6.91
US$3,310,159 		479,039 +3.2% 6.91 US$3,310,159
2026-05-21 2026-05-20
B Purchase
996 +0.0%
24.94
US$24,840 		996 +0.0% 24.94 US$24,840
2026-05-21 2026-05-19
B Purchase
3,802 +0.1%
24.97
US$94,936 		3,802 +0.1% 24.97 US$94,936
2026-05-14 2026-05-12
B Purchase
6,387 +0.1%
24.90
US$159,036 		6,387 +0.1% 24.90 US$159,036
2026-05-12 2026-05-12
S Sale
6,719 -1.6%
0.64
US$4,300 		6,719 -1.6% 0.64 US$4,300
2026-05-12 2026-05-12
S Sale
94,432 -1.6%
0.64
US$60,436 		94,432 -1.6% 0.64 US$60,436
2026-05-13 2026-05-11
B Purchase
6,510,416 +74.9%
11.52
US$74,999,992 		6,510,416 +74.9% 11.52 US$74,999,992
2026-05-12 2026-05-11
S Sale
5,812 -1.4%
0.67
US$3,894 		5,812 -1.4% 0.67 US$3,894
2026-05-12 2026-05-11
S Sale
81,678 -1.4%
0.67
US$54,724 		81,678 -1.4% 0.67 US$54,724
2026-05-11 2026-05-11
B Purchase
25,720 +0.4%
25.00
US$643,000 		25,720 +0.4% 25.00 US$643,000
2026-05-11 2026-05-11
B Purchase
14,149 +0.2%
24.47
US$346,226 		14,149 +0.2% 24.47 US$346,226
2026-05-12 2026-05-08
S Sale
25,012 -5.6%
0.71
US$17,759 		25,012 -5.6% 0.71 US$17,759