Casdin Partners Master Fund, L.P.

Insider

Director, 10% Owner

Trades at: BLFS· WGS· LAB· VERV· DBTX

30D 90D 1Y

Net shares · 90d

-700.0K

500.0K buy · 1.2M sell

Net value · 90d

-$6.7M

$21.5M in · $28.1M out

Sentiment · 90d

Net selling

43% buying · 57% selling

Open-market trades · 90d

500.0K buy · 1.2M sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 90d

Open-market Buys Sells All types

Showing 1 open-market trade in the last 90 days. This insider has little activity in this window, so shorter and longer ranges can show the same trade — widen the range above to see more history.

WGS Buy·P
May 20, 26

Director,TenPercentOwner

$21.5M · $42.92/sh

500.0K sh · 3 lots

Own +17%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 20, 2026	WGS	Director,TenPercentOwner	Buy P	500.0K · 3 lots	+17%	$42.92 avg	$21.5M

Buy Sell Non-market (grant · exercise · gift)

About Casdin Partners Master Fund, L.P.

This profile aggregates every SEC Form 4 insider transaction reported by Casdin Partners Master Fund, L.P. across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.