Skip to main content
Equibles

Rafferty Asset Management, LLC

Position in TWST — Twist Bioscience Corp

CIK 1389426 New York, NY
Back to TWST Full portfolio

Position in TWST

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$4,190,508
-$383,529 QoQ
Shares Held
40,732
-57.7% QoQ
Ownership
0.065%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TWST Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Rafferty Asset Management, LLC holds $335,902,097 across 164 Biotechnology names. TWST ranks #7 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 VRTX
Vertex Pharmaceuticals Inc / Ma
 65,798 $32,683,840
2 REGN
Regeneron Pharmaceuticals, Inc.
 38,534 $24,027,490
3 ALNY
Alnylam Pharmaceuticals, Inc.
 55,332 $16,656,591
4 MRNA
Moderna, Inc.
 111,906 $7,836,777
5 INCY
Incyte Corp
 44,663 $5,062,997
6
33,369 $4,429,067
7 TWST
Twist Bioscience Corp
This page 		40,732 $4,190,508
8 ORKA
Oruka Therapeutics, Inc.
 43,110 $4,102,778

All Filings in TWST

Export CSV
25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,190,508 40,732
2026-03-31 $4,574,037 96,255
2025-12-31 $3,624,263 114,258
2025-09-30 $3,215,501 114,268
2025-06-30 $2,783,531 75,660
2025-03-31 $3,897,889 99,284
2024-12-31 $4,336,533 93,319
2024-09-30 $6,284,763 139,105
2024-06-30 $5,079,634 103,077
2024-03-31 $8,374,796 244,092
2023-12-31 $8,463,387 229,609
2023-09-30 $6,866,640 338,926
2023-06-30 $8,463,708 413,671
2023-03-31 $6,500,505 431,068
2022-12-31 $7,865,633 330,350
2022-09-30 $5,541,419 157,248
2022-06-30 $4,986,344 142,630
2022-03-31 $6,029,199 122,098
2021-12-31 $4,910,627 63,453
2021-09-30 $2,745,064 25,662
2021-06-30 $3,032,103 22,755
2021-03-31 $2,917,398 23,554
2020-12-31 $929,829 6,581
2020-09-30 $2,411,439 31,742
2020-06-30 $798,593 17,629