Comparable stake leader
VANGUARD GROUP INC
SEC ownership of SpringWorks Therapeutics, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001773427.
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
6/12
Latest evidence
30 Jun 2026
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD GROUP INC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
6 of 12
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD GROUP INC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001773427
- Issuer location
- Stamford, CT
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SpringWorks Therapeutics, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
6/12
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 9.6%
6 rows are not safely comparable across share classes.
13D/G row: VANGUARD GROUP INC
Showing 1-8 of 12 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 9.6%.
6 of 12 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 5
VANGUARD GROUP INC
9.6%
Hudson Bay Capital Management LP
5.2%
Deep Track Capital, LP
4.6%
FMR LLC
1.7%
GOLDMAN SACHS GROUP INC
0%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 12 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
9.6%
|
$331,026,195
7,158,871 shares
|
$0 | 31 Dec 2024 |
| Hudson Bay Capital Management LP |
13D/G
|
5.2%
|
$184,992,910
3,936,857 shares
|
$0 | 30 Jun 2025 |
| Deep Track Capital, LP |
13D/G
|
4.6%
|
$160,025,357
3,460,756 shares
|
$0 | 31 Dec 2024 |
| FMR LLC |
13D/G
|
1.7%
|
$58,187,769
1,258,386 shares
|
$0 | 30 Apr 2025 |
| GOLDMAN SACHS GROUP INC |
13D/G
THE GOLDMAN SACHS GROUP, INC.
|
0%
|
$7,115
132 shares
|
-$228,207,264 | 30 Sep 2025 |
| HUNTINGTON NATIONAL BANK |
13F
Company
|
0%
|
$47
1 shares
|
— | 30 Jun 2026 |
| Stephen P. Squinto |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$262,384,838
6,333,277 shares
mixed-class rows
|
— | 19 May 2022 |
| ORBIMED ADVISORS LLC |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$232,561,438
5,599,842 shares
|
— | 12 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 13 Sep 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to SpringWorks Therapeutics, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Stephen P. Squinto
Net 12M change
$0
Latest report
01 Jul 2025
Recent insider transactions for SpringWorks Therapeutics, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.