MarketPeel
Insider Trading Intelligence
CL

Casdin Partners Gp, Llc

BLFS
10% OWNER · BIOLIFE SOLUTIONS INC · CIK 0001534260
FILING MIX · LIFETIME85%/15%
BUYS
100
SELLS
18
TOTAL VALUE
$550.45M
COMPANIES
5
ACTIVE SINCE
May 2020
HOLDINGS NOW
95,747,162
AVG SELL PX
$17.40
TRADE KIND
SHOWING 118 / 118
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
81 backtested trades · 8 horizons · 73 pending
Forward-return performance of every backtestable P/S trade by Casdin Partners Gp, Llc, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d81+65.43%+4.91%+0.42%+4.49%+4.01%4.87
14d81+74.07%+8.62%+1.31%+7.31%+5.59%5.79
30d81+71.60%+8.12%+3.00%+5.12%+3.38%2.92
60d81+61.73%+12.60%+4.96%+7.64%+4.20%2.54
90d81+46.91%+7.31%+5.34%+1.96%-0.33%0.47
180d81+28.40%+20.08%+10.88%+12.03%-24.24%1.13
1y81(28 pending)+49.06%+65.41%+20.37%+45.04%-31.19%1.49
2y81(45 pending)+47.22%+50.84%+40.80%-0.62%-58.41%-0.02
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
BLFS · 4,757,165 shares · as of May 21, 2026
02,183,7904,367,5806,551,3698,735,159202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 100 buys / 18 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WGS
GENEDX HOLDINGS CORP.
PURCHASE
50,000$52.86$2.64M3,707,164Jun 5, 2026Jun 8, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
150,000$56.44$8.47M3,657,164Jun 4, 2026Jun 8, 2026View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
650,000$23.70$15.40M4,757,165May 21, 2026May 21, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
140,000$43.81$6.13M3,507,164May 20, 2026May 20, 2026View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
250,000$23.70$5.92M5,407,165May 20, 2026May 21, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
185,000$42.60$7.88M3,367,164May 19, 2026May 20, 2026View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
300,000$22.65$6.79M5,657,165May 19, 2026May 21, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
175,000$42.55$7.45M3,182,164May 18, 2026May 20, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
50,000850,000May 11, 2026May 11, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
300,000800,000May 8, 2026May 11, 2026View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
500,000500,000May 7, 2026May 11, 2026View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$1.45$217.0K72,100,000Dec 4, 2025Dec 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
75,000$1.44$108.0K71,950,000Dec 3, 2025Dec 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
125,000$1.42$177.5K71,875,000Dec 2, 2025Dec 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
7,550,000$1.30$9.84M71,750,000Nov 25, 2025Nov 26, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$1.43$214.9K64,200,000Nov 24, 2025Nov 26, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
450,000$1.30$586.3K64,050,000Nov 20, 2025Nov 20, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
350,000$1.28$448.9K63,600,000Nov 19, 2025Nov 20, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
275,000$1.23$339.4K63,250,000Nov 18, 2025Nov 20, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
225,000$1.22$275.6K62,975,000Nov 17, 2025Nov 17, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$1.24$309.8K62,750,000Nov 14, 2025Nov 17, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
450,000$1.20$541.4K62,500,000Nov 13, 2025Nov 17, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
375,000$1.19$445.8K62,050,000Nov 12, 2025Nov 12, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
300,000$1.20$358.8K61,675,000Nov 11, 2025Nov 12, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
275,000$1.17$321.9K61,375,000Nov 10, 2025Nov 12, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
225,000$1.12$252.8K61,100,000Nov 7, 2025Nov 12, 2025View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
750,000$28.55$21.41M5,957,165Oct 15, 2025Oct 17, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
100,000$1.29$128.9K60,875,000Sep 9, 2025Sep 11, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$1.28$319.4K60,775,000Sep 4, 2025Sep 5, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$1.27$316.4K60,525,000Sep 3, 2025Sep 5, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
125,000$1.26$157.9K60,275,000Aug 26, 2025Aug 26, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
200,000$1.24$248.2K60,150,000Aug 25, 2025Aug 26, 2025View →
WGS
GENEDX HOLDINGS CORP.
SALE
500,000$120.90$60.45M3,007,164Aug 22, 2025Aug 22, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
200,000$1.26$252.7K59,950,000Aug 22, 2025Aug 26, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$1.22$183.2K59,750,000Aug 15, 2025Aug 15, 2025View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
500,000$24.40$12.20M6,707,165Aug 15, 2025Aug 21, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
133,220$1.21$161.5K59,600,000Aug 14, 2025Aug 15, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
75,000$1.31$98.3K59,466,780Aug 13, 2025Aug 15, 2025View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
500,000$22.60$11.30M7,207,165Aug 11, 2025Aug 13, 2025View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
1,000,000$23.80$23.80M7,707,165Jun 10, 2025Jun 12, 2025View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
27,9948,735,159Apr 7, 2025Apr 9, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
4,820,959$1.07$5.13M58,846,780Feb 28, 2025Mar 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
545,000$1.07$580.4K59,391,780Feb 28, 2025Mar 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
58,215$1.07$62.0K2,806,470Feb 28, 2025Mar 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
SALE
545,000$1.07$580.4K0Feb 28, 2025Mar 4, 2025View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$2.19$546.8K54,025,821Aug 27, 2024Aug 29, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$2.15$322.5K53,775,821Aug 26, 2024Aug 26, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
292,100$2.13$621.0K53,625,821Aug 23, 2024Aug 26, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
307,900$1.96$602.8K53,333,721Aug 22, 2024Aug 26, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$1.90$952.0K53,025,821Aug 21, 2024Aug 21, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$1.87$936.7K52,525,821Aug 20, 2024Aug 21, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$1.85$463.2K52,025,821Aug 19, 2024Aug 21, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
1,200,000$1.59$1.91M51,775,821Aug 14, 2024Aug 16, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
550,000$1.62$890.6K50,575,821Aug 13, 2024Aug 13, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$1.64$820.6K50,025,821Aug 12, 2024Aug 13, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
525,408$1.61$848.5K49,525,821Aug 9, 2024Aug 13, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
569,562$1.64$932.6K49,000,413Aug 8, 2024Aug 9, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$1.57$786.2K48,430,821Aug 7, 2024Aug 9, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
200,000$1.58$316.8K47,930,821Aug 5, 2024Aug 6, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
1,000,000$1.63$1.63M47,730,821Aug 2, 2024Aug 6, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
413,655$32.25$13.34M3,507,164Aug 1, 2024Aug 5, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
545,000$2.05$1.12M545,000Jun 18, 2024Jun 21, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
655,000$2.05$1.34M46,730,821Jun 18, 2024Jun 21, 2024View →
LAB
STANDARD BIOTOOLS INC.
SALE
1,200,000$2.05$2.46M0Jun 18, 2024Jun 21, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
30,000$22.52$675.5K3,093,509Jun 4, 2024Jun 5, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
100,000$20.82$2.08M3,063,509Jun 3, 2024Jun 5, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
40,000$21.07$842.6K2,963,509May 29, 2024May 31, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
18,304$20.61$377.2K2,923,509May 28, 2024May 28, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
144,196$20.12$2.90M2,905,205May 24, 2024May 28, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
7,500$19.59$146.9K2,761,009May 23, 2024May 28, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
100,000$2.60$260.0K46,075,821May 23, 2024May 28, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$2.58$387.7K45,975,821May 22, 2024May 22, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
350,000$2.56$895.9K45,825,821May 21, 2024May 22, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
100,000$2.58$258.1K45,475,821May 20, 2024May 22, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
352,072$2.56$902.0K45,375,821May 17, 2024May 17, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$2.54$1.27M45,023,749May 16, 2024May 17, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
500,000$2.57$1.28M44,523,749May 15, 2024May 17, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
50,000$23.31$1.17M2,753,509May 13, 2024May 15, 2024View →
BLFS
BIOLIFE SOLUTIONS INC
SALE
150,000$17.54$2.63M0Apr 30, 2024May 2, 2024View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
150,000$17.54$2.63M8,707,165Apr 30, 2024May 2, 2024View →
LAB
STANDARD BIOTOOLS INC.
SALE
89,446$2.75$246.0K0Mar 18, 2024Mar 20, 2024View →
LAB
STANDARD BIOTOOLS INC.
SALE
38,334$2.75$105.4K0Mar 18, 2024Mar 20, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
13,939,637$2.75$38.33M13,939,637Mar 18, 2024Mar 20, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
32,525,821$2.75$89.45M44,023,749Mar 18, 2024Mar 20, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
1,403$2.62$3.7K11,497,928Mar 5, 2024Mar 6, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
900$8.83$7.9K2,703,509Mar 5, 2024Mar 6, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$2.57$642.5K11,496,525Mar 4, 2024Mar 6, 2024View →
WGS
GENEDX HOLDINGS CORP.
PURCHASE
40,000$8.74$349.7K2,702,609Mar 4, 2024Mar 6, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
2,744,2192,744,219Jan 5, 2024Jan 9, 2024View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
11,246,52511,246,525Jan 5, 2024Jan 9, 2024View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
927,165$11.19$10.37M8,557,165Oct 19, 2023Oct 23, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
58,465$13.20$771.7K7,630,000Aug 9, 2023Aug 11, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
24,973$21.86$545.8K150,000May 22, 2023May 23, 2023View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
800,000$2.29$1.84M1,200,000May 19, 2023May 19, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
50,000$22.55$1.13M125,027May 19, 2023May 23, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
30,000$21.76$652.7K75,027May 18, 2023May 18, 2023View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
150,000$2.16$323.9K400,000May 18, 2023May 19, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
30,027$21.30$639.4K45,027May 17, 2023May 18, 2023View →
LAB
STANDARD BIOTOOLS INC.
PURCHASE
250,000$1.89$471.6K250,000May 17, 2023May 19, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
15,000$20.19$302.8K15,000May 16, 2023May 18, 2023View →
MXCT
MAXCYTE, INC.
SALE
735,786$6.15$4.53M10,000,000Oct 3, 2022Oct 5, 2022View →
MXCT
MAXCYTE, INC.
SALE
3,235,548$4.30$13.91M10,735,786Jul 1, 2022Jul 6, 2022View →
LAB
STANDARD BIOTOOLS INC.
PURCHASEGRANT
Stock grant
127,780127,780Apr 4, 2022Apr 6, 2022View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
131,4287,571,535Sep 1, 2021May 19, 2023View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
126,1857,566,292Sep 1, 2021Nov 3, 2021View →
MXCT
MAXCYTE, INC.
PURCHASE
1,800,000$13.00$23.40M13,971,334Jul 30, 2021Aug 3, 2021View →
ABSI
ABSCI CORP
SALE
0Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
PURCHASE
1,562,500$16.00$25.00M6,745,333Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
SALE
1,274,4310Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
SALE
0Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
PURCHASE
973,260973,260Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
PURCHASE
4,209,5734,209,573Jul 26, 2021Jul 28, 2021View →
ABSI
ABSCI CORP
PURCHASE
973,2605,182,833Jul 26, 2021Jul 28, 2021View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
1,600,000$22.50$36.00M7,440,107Nov 24, 2020Nov 27, 2020View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
305,583$14.50$4.43M5,840,107Jul 2, 2020Jul 2, 2020View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
685,000$14.50$9.93M5,534,524Jul 1, 2020Jul 2, 2020View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
476,191$10.50$5.00M4,849,524May 22, 2020May 26, 2020View →
BLFS
BIOLIFE SOLUTIONS INC
PURCHASE
1,904,762$10.50$20.00M4,373,333May 14, 2020May 18, 2020View →
Other insiders · BLFS
Loading peer insiders…
About this filer
CIK 0001534260
ROLE
10% Owner
PRIMARY
BLFS
COMPANIES
5
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001534260DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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