Marinus Pharmaceuticals, Inc. - Common Stock (MRNS) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2020 to Q1 2025

Type / Class
Equity / Common Stock
Symbol
MRNS
Shares outstanding
54,731,500
Price per share
$0.55
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Marinus Pharmaceuticals, Inc. - Common Stock (MRNS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
SUVRETTA CAPITAL MANAGEMENT, LLC 5.5% +42% $1,662,437 +$504,541 3,022,612 +44% SUVRETTA CAPITAL MANAGEMENT, LLC 07 Feb 2025
VANGUARD GROUP INC 4.7% $1,428,222 2,596,768 The Vanguard Group 31 Dec 2024
TANG CAPITAL PARTNERS LP 3% $903,070 1,641,945 TANG CAPITAL MANAGEMENT, LLC 31 Dec 2024

Institutional Holders of Marinus Pharmaceuticals, Inc. - Common Stock (MRNS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q1 0 $0 -$15,806,050 $0.55 0
2024 Q4 29,540,857 $15,803,442 -$30,404,718 $0.54 50
2024 Q3 41,360,707 $72,857,551 -$1,829,065 $1.76 73
2024 Q2 43,260,972 $50,612,504 -$154,108,825 $1.17 86
2024 Q1 53,814,604 $486,486,022 +$382,531 $9.04 118
2023 Q4 20,648 $224,444 $10.87 1
2023 Q3 51,062,301 $411,105,098 +$48,310,451 $8.05 102
2023 Q2 44,658,216 $485,001,981 +$47,936,169 $10.86 104
2023 Q1 41,133,046 $283,923,170 +$27,636,141 $6.90 85
2022 Q4 36,217,050 $144,151,783 +$42,757,810 $3.98 71
2022 Q3 25,168,292 $167,513,039 +$2,292,738 $6.65 63
2022 Q2 28,625,188 $139,757,658 -$7,031,843 $4.84 63
2022 Q1 29,952,506 $280,389,852 -$1,231,759 $9.35 81
2021 Q4 29,901,506 $355,397,830 -$20,740,705 $11.88 71
2021 Q3 31,792,990 $361,924,260 -$2,696,035 $11.38 78
2021 Q2 31,397,287 $563,274,910 +$3,856,035 $17.94 78
2021 Q1 31,024,757 $480,220,396 +$23,771,853 $15.48 86
2020 Q4 29,169,358 $355,888,976 +$127,510,411 $12.20 80
2020 Q3 18,554,146 $238,147,091 +$238,139,004 $12.85 69