Silverback Therapeutics Inc

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Silverback Therapeutics Inc
TickerSPRY
CIK #0001671858
CUSIP82835W108
SectorLife Sciences - Pharmaceutical Preparations
Address500 Fairview Avenue North, Suite 600, Seattle, WA 98109
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Silverback Therapeutics Inc 2020-10-06 85.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001671858] 10-K
[0001671858] 10-Q
[0001671858] 3
[0001671858] 4
[0001671858] 8-K
[0001671858] D
[0001671858] SC 13D
[0001671858] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Millennium Management LLC ARS Pharmaceuticals Inc [2026-03-24] 0.0
Rubric Capital Management LP ARS Pharmaceuticals Inc [2026-02-13] 0.0
BlackRock Inc ARS Pharmaceuticals Inc [2026-01-21] 0.0
RA Capital Management LP ARS Pharmaceuticals Inc [2023-08-31] 7.07
Bell Robert G ARS Pharmaceuticals Inc [2022-11-21] 11.0
Tanimoto Sarina ARS Pharmaceuticals Inc [2022-11-18] 11.0
Lowenthal Richard E ARS Pharmaceuticals Inc [2022-11-18] 11.0
Pratik Shah Living Trust Dated June 15 2011 ARS Pharmaceuticals Inc [2022-11-18] 11.0
Flynn James E ARS Pharmaceuticals Inc [2022-11-18] 5.91
K2 Principal Fund LP Silverback Therapeutics Inc [2022-07-18] 5.41
Wasatch Advisors Inc Silverback Therapeutics Inc [2022-02-11] 5.1
US Venture Partners XII LP Silverback Therapeutics Inc [2022-01-27] 0.0
RA Capital Management LP Silverback Therapeutics Inc [2021-02-16] 5.0
Nextech VI Oncology SCSP Silverback Therapeutics Inc [2021-02-16] 5.5
FMR LLC Silverback Therapeutics Inc [2021-02-08] 0.0
EcoR1 Capital LLC Silverback Therapeutics Inc [2021-01-04] 7.3
Boxer Capital LLC Silverback Therapeutics Inc [2020-12-17] 0.0
US Venture Partners XII LP Silverback Therapeutics Inc [2020-12-14] 6.0
OrbiMed Advisors LLC Silverback Therapeutics Inc [2020-12-11] 22.4
Form 3/4/5 Filer 2011 - 2026
Casale Donn
ARS Pharmaceuticals Inc
Saunders Brent L
Shah Rajeev M
RA Capital Healthcare Fund LP
RA Capital Nexus Fund II LP
RA Capital Management LP
Kolchinsky Peter
Schneider Phillip M
Kelly Michael
Dadoo Rajeev
Thompson Peter A
Shah Pratik
Islam Saqib
Shawver Laura
Fitzpatrick Alexander A
Karas Eric
Scott Kathleen D
Tanimoto Sarina
Chakma Justin
Lowenthal Richard E
Dorsey Brian
Deerfield Private Design Fund IV LP
Deerfield Management Company LP
Deerfield Mgmt III LP
Deerfield Private Design Fund III LP
Flynn James E
Deerfield Mgmt IV LP
OrbiMed Capital GP VI LLC
OrbiMed Advisors LLC
OrbiMed Capital LLC
Pratik Shah Living Trust dated June 15 2011
Leff Jonathan S
Pepe Jeffrey C
Koehler Maria
Powell Andrew Kenneth William
Root Jonathan D
Hershberg Robert
Capps Vickie L
Odegard Valerie
Piazza Jonathan
Hunder Naomi
Hawkinson Russ
Schroeder Thilo
Tansey Casey M
Presidio Management Group XII LLC
US Venture Partners XII-A LP
US Venture Partners XII LP
Alexandria Venture Investments LLC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Lowenthal Richard E
Stock Option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Karas Eric
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Fitzpatrick Alexander A
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Tanimoto Sarina
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Tanimoto Sarina
Stock Option (right to buy) · derivative
2026-01-02 Grant 875,000 $0.00
Scott Kathleen D
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Dorsey Brian
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Chakma Justin
Stock option (right to buy) · derivative
2026-01-02 Grant 240,000 $0.00
Lowenthal Richard E
Stock option (right to buy) · derivative
2026-01-02 Grant 875,000 $0.00
Dorsey Brian
Common Stock
2025-11-13 Sell 21,828 $8.71 190,122
Dorsey Brian
Common Stock
2025-11-13 Option exercise 21,828 $0.64 13,970
Dorsey Brian
Stock Option (Right to Buy) · derivative
2025-11-13 Option exercise 21,828 $0.00
Chakma Justin
Common Stock
2025-11-12 Option exercise 30,000 $0.84 25,200
Chakma Justin
Stock Option (Right to Buy) · derivative
2025-11-12 Option exercise 30,000 $0.00
Chakma Justin
Common Stock
2025-11-12 Sell 136,380 $8.86 1,208,327
Shah Pratik
Common Stock
2025-11-12 Gift 100,000 $0.00
Shah Pratik
Common Stock
2025-11-12 Gift 250,000 $0.00
Chakma Justin
Common Stock
2025-11-12 Sell 30,000 $8.91 267,300
Common Stock
2025-08-21 Sell 12,500 $15.00 187,500
Common Stock
2025-08-21 Option exercise 12,500 $1.50 18,750
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 204 91,807,363
2025-12-31 193 88,238,768
2025-09-30 192 84,355,504
2025-06-30 192 84,795,582
2025-03-31 186 76,117,483
2024-12-31 170 71,840,709
2024-09-30 153 65,045,237
2024-06-30 117 64,080,606
2024-03-31 115 60,621,935
2023-12-31 101 68,032,830
2023-09-30 100 67,929,660
2023-06-30 95 56,225,517
Form 13F Holdings
Firm Period DFND Voting Shares
Peregrine Capital Management LLC [2026-06-30] SOLE 249,798 672,139
Hennion & Walsh Asset Management Inc [2026-06-30] SOLE 175,614 175,614
Norman Fields Gottscho Capital Management LLC [2026-06-30] SOLE 0 71,080
Empirical Financial Services LLC DBA Empirical Wealth Ma [2026-06-30] SOLE 37,057 38,592
CX Institutional [2026-06-30] SOLE 0 8,390
Gamma Investing LLC [2026-06-30] DFND 1,256 1,256
Versant Capital Management Inc [2026-06-30] SOLE 991 991
Empirical Financial Services LLC DBA Empirical Wealth Ma [2026-06-30] OTR 987 987
Farther Finance Advisors LLC [2026-06-30] SOLE 0 374
IFP Advisors LLC [2026-06-30] SOLE 11 11
GHP Investment Advisors Inc [2026-06-30] SOLE 3 3
Hughes Financial Services LLC [2026-06-30] SOLE 1 1
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