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Total declarations
Companies
▲ Purchases (9 ops.)
▼ Sales (1 ops.)
Latest filing published 08 Jun 2026 for GeneDx Holdings Corp., €2.3M. Read the official filing
Filing timeline
BuySaleCasdin Capital, LLC
Insider track record
Disclosed buys
9
Disclosed sells
1
Signal history
Closed purchases
Market purchases
9
Positive at T+90
100%
Median T+90
+52.4%
Based on 7 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Purchases by company
Since each purchase
- +26.7%Entry US$56.33 · Close 06 Oct 2026 US$71.37
- +174.8%Entry US$26.23 · Close at T+365 US$72.07
- +245.6%Entry US$21.45 · Close at T+365 US$74.13
- +230.9%Entry US$21.15 · Close at T+365 US$69.98
- +184.4%Entry US$24.02 · Close at T+365 US$68.31
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Casdin Capital, LLC: trading record in brief
Filings by Casdin Capital, LLC span 2 companies, the busiest being GeneDx Holdings Corp. and 2seventy bio, Inc. Over a trading history stretching from 4 March 2024 to 5 June 2026, the count stands at 13 filings.
The open-market side counts 9 purchases for €15.3M alongside 1 sale for €52.1M. Sales outweigh purchases by €36.7M. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. The rest of the record consists of 1 share grant. Since January 2026: 2 purchases and no sales on the market.
In size, the median ticket on the buying side is €1.1M. Of 9 purchases, 2 formed part of a group of insiders buying within 30 days of each other. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase. For 7 purchases whose 90-day window has closed, the share price was higher on day 90 than the day after publication in 100% of cases, with a median move of +52.4%. Past outcomes like these are no guarantee of what comes next.
The newest entry dates from 8 June 2026: an open-market purchase of €2.3M, in GeneDx Holdings Corp. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Casdin Capital, LLC
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations13 total
50,000 shares@ US$52.85660.11% mcap2.9% of flowClass A Common Stock, par value $0.0001 per shareSEC:0000919574-26-003907:1
Canonical exit: 3 Sept 2026 (T+90)
150,000 shares@ US$56.44490.36% mcap9.3% of flowClass A Common Stock, par value $0.0001 per shareSEC:0000919574-26-003907:0
Canonical exit: 2 Sept 2026 (T+90)
500,000 shares@ US$120.903966.6% of flowClass A Common StockSEC:0000919574-25-005084:0
22,625 shares@ US$5.006.2% of flowCommon Stock, par value $0.0001 per shareSEC:0000919574-25-003264:0
413,655 shares@ US$32.2515.8% of flowClass A Common StockSEC:0000919574-24-004273:0
6,025 sharesCommon Stock, par value $0.0001 per shareSEC:0000919574-24-003576:0
100,000 shares@ US$20.81642.4% of flowClass A Common StockSEC:0000919574-24-003510:0
Canonical exit: 1 Sept 2024 (T+90)
40,000 shares@ US$21.06511.0% of flowClass A Common StockSEC:0000919574-24-003432:0
Canonical exit: 27 Aug 2024 (T+90)
7,500 shares@ US$19.58880.2% of flowClass A Common StockSEC:0000919574-24-003355:0
Canonical exit: 21 Aug 2024 (T+90)
50,000 shares@ US$23.30591.4% of flowClass A Common StockSEC:0000919574-24-003212:0
Canonical exit: 11 Aug 2024 (T+90)
40,000 shares@ US$5.099811.5% of flowCommon Stock, par value $0.0001 per shareSEC:0000919574-24-002241:0
Canonical exit: 24 Jun 2024 (T+90)
300,000 shares@ US$4.903382.3% of flowCommon Stock, par value $0.0001 per shareSEC:0000919574-24-002176:0
Canonical exit: 19 Jun 2024 (T+90)
40,000 shares@ US$8.74270.4% of flowClass A Common StockSEC:0000919574-24-001889:0
Canonical exit: 2 Jun 2024 (T+90)
13 of 13 declarations
