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Shannon River Fund Management’s Tower Semiconductor TSEM Stock Holding History

Shannon River Fund Management’s Portfolio TSEM Stock Details TSEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$99.8M Sell
382,933
-121,306
-24% -$29.1M 8.91% 1
2026
Q1 		$88.5M Sell
504,239
-98,565
-16% -$13.3M 16.88% 1
2025
Q4 		$70.8M Sell
602,804
-359,259
-37% -$34.6M 11.1% 1
2025
Q3 		$69.6M Sell
962,063
-505,441
-34% -$27.6M 11.2% 2
2025
Q2 		$63.6M Buy
1,467,504
+274,791
+23% +$10.5M 8.46% 4
2025
Q1 		$42.5M Buy
1,192,713
+106,822
+10% +$4.83M 11.1% 3
2024
Q4 		$55.9M Sell
1,085,891
-252,324
-19% -$11.8M 8.25% 6
2024
Q3 		$59.2M Sell
1,338,215
-645,135
-33% -$26.4M 8.29% 3
2024
Q2 		$78M Buy
1,983,350
+150,014
+8% +$5.33M 12.57% 1
2024
Q1 		$61.3M Buy
1,833,336
+570,610
+45% +$17.8M 13.66% 1
2023
Q4 		$38.5M Buy
+1,262,726
New +$32.9M 7.04% 5

Other funds holding TSEM

T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
CI
Clal Insurance Tel-Aviv, Israel $22.3B AUM 79.91% 1-Year Est. Return
PF
Phoenix Financial Givatayim, Israel $14.6B AUM 57.48% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
UIM
USS Investment Management London, United Kingdom $27.8B AUM 39.42% 1-Year Est. Return
HIIFS
Harel Insurance Investments & Financial Services Ramat Gan, Israel $20.6B AUM 59.59% 1-Year Est. Return
SM
Senvest Management New York $3.41B AUM 66.27% 1-Year Est. Return
MIFH
Migdal Insurance & Financial Holdings Petach Tikva, Israel $15.6B AUM 71.29% 1-Year Est. Return

Shannon River Fund Management's TSEM Position: Q2 2026 in Review

Shannon River Fund Management reduced its Tower Semiconductor (TSEM) stake by 24% in Q2 2026, selling an estimated $29.1M and leaving 382,933 shares worth $99.8M. The position accounts for 8.91% of the portfolio, ranked #1.

Shannon River Fund Management first reported a position in TSEM in Q4 2023 and has held it in 11 quarters since. 451 funds tracked by Wall St. Rank hold TSEM as of Q2 2026.

  • Shannon River Fund Management held 382,933 shares of Tower Semiconductor worth $99.8M as of Q2 2026.
  • Shannon River Fund Management sold 121,306 Tower Semiconductor shares in Q2 2026, an estimated $29.1M.
  • Tower Semiconductor made up 8.91% of Shannon River Fund Management's portfolio in Q2 2026, its #1 holding.
  • Shannon River Fund Management first reported a position in Tower Semiconductor in Q4 2023 and has held it in 11 quarters since.
  • 451 funds tracked by Wall St. Rank held Tower Semiconductor as of Q2 2026.

Based on Shannon River Fund Management's 13F filing for Q2 2026, filed 13 Aug 2026.