Janus Henderson Group
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Janus Henderson Group’s PDF Solutions PDFS Stock Holding History

Janus Henderson Group’s Portfolio PDFS Stock Details PDFS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$33.9M Buy
1,035,666
+123,531
+14% +$4.04M 0.02% 482
2025
Q4 		$26M Buy
912,135
+128,270
+16% +$3.55M 0.01% 546
2025
Q3 		$20.2M Sell
783,865
-17,741
-2% -$387K 0.01% 620
2025
Q2 		$17.1M Buy
801,606
+9
+0% +$170 0.01% 598
2025
Q1 		$15.5M Buy
801,597
+153,666
+24% +$3.77M 0.01% 623
2024
Q4 		$17.5M Sell
647,931
-10,616
-2% -$320K 0.01% 611
2024
Q3 		$20.9M Buy
658,547
+94,154
+17% +$3.06M 0.01% 569
2024
Q2 		$20.5M Buy
564,393
+2,067
+0.4% +$69.1K 0.01% 564
2024
Q1 		$18.9M Buy
562,326
+97,060
+21% +$3.18M 0.01% 570
2023
Q4 		$15M Buy
465,266
+4,436
+1% +$135K 0.01% 596
2023
Q3 		$14.9M Buy
460,830
+35,208
+8% +$1.35M 0.01% 587
2023
Q2 		$19.2M Buy
425,622
+77,085
+22% +$3.15M 0.01% 565
2023
Q1 		$14.8M Buy
+348,537
New +$12.2M 0.01% 635

Other funds holding PDFS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NIM
Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
RIM
Ranger Investment Management Dallas, Texas $1.58B AUM 51% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
OAM
Ophir Asset Management Sydney, Australia $1.22B AUM 100.03% 1-Year Est. Return
SCM
Snyder Capital Management San Francisco, California $5.79B AUM 33.56% 1-Year Est. Return

Janus Henderson Group's PDFS Position: Q1 2026 in Review

Janus Henderson Group increased its PDF Solutions (PDFS) stake by 14% in Q1 2026, buying an estimated $4.04M and bringing the position to 1,035,666 shares worth $33.9M. The position accounts for 0.02% of the portfolio, ranked #482.

Janus Henderson Group first reported a position in PDFS in Q1 2023 and has held it in 13 quarters since. 208 funds tracked by Wall St. Rank hold PDFS as of Q1 2026.

  • Janus Henderson Group held 1,035,666 shares of PDF Solutions worth $33.9M as of Q1 2026.
  • Janus Henderson Group bought 123,531 PDF Solutions shares in Q1 2026, an estimated $4.04M.
  • PDF Solutions made up 0.02% of Janus Henderson Group's portfolio in Q1 2026, its #482 holding.
  • Janus Henderson Group first reported a position in PDF Solutions in Q1 2023 and has held it in 13 quarters since.
  • 208 funds tracked by Wall St. Rank held PDF Solutions as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.