Chatham Capital Group
OSIS icon

Chatham Capital Group’s OSI Systems OSIS Stock Holding History

Chatham Capital Group’s Portfolio OSIS Stock Details OSIS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$3.4M Buy
17,490
+1,085
+7% +$231K 0.44% 72
2026
Q2 		$3.59M Buy
16,405
+713
+5% +$175K 0.46% 67
2026
Q1 		$4.17M Sell
15,692
-1,888
-11% -$522K 0.6% 54
2025
Q4 		$4.48M Buy
17,580
+445
+3% +$116K 0.64% 49
2025
Q3 		$4.27M Buy
17,135
+435
+3% +$99.3K 0.61% 50
2025
Q2 		$3.76M Sell
16,700
-75
-0.4% -$16K 0.57% 55
2025
Q1 		$3.26M Buy
16,775
+673
+4% +$128K 0.54% 56
2024
Q4 		$2.7M Sell
16,102
-310
-2% -$49.1K 0.44% 69
2024
Q3 		$2.49M Buy
16,412
+30
+0.2% +$4.31K 0.41% 75
2024
Q2 		$2.25M Buy
16,382
+225
+1% +$31K 0.39% 77
2024
Q1 		$2.31M Buy
16,157
+1,975
+14% +$259K 0.42% 73
2023
Q4 		$1.83M Sell
14,182
-470
-3% -$56K 0.37% 81
2023
Q3 		$1.73M Buy
+14,652
New +$1.77M 0.39% 78

Other funds holding OSIS

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $483B AUM 27.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Channing Capital Management
Channing Capital Management Chicago, Illinois $3.82B AUM 15.06% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return

Chatham Capital Group's OSIS Position: Q3 2026 in Review

Chatham Capital Group increased its OSI Systems (OSIS) stake by 6.6% in Q3 2026, buying an estimated $231K and bringing the position to 17,490 shares worth $3.4M. The position accounts for 0.44% of the portfolio, ranked #72.

Chatham Capital Group first reported a position in OSIS in Q3 2023 and has held it in 13 quarters since. The position peaked at $4.48M in Q4 2025. 276 funds tracked by Wall St. Rank hold OSIS as of Q3 2026.

  • Chatham Capital Group held 17,490 shares of OSI Systems worth $3.4M as of Q3 2026.
  • Chatham Capital Group bought 1,085 OSI Systems shares in Q3 2026, an estimated $231K.
  • OSI Systems made up 0.44% of Chatham Capital Group's portfolio in Q3 2026, its #72 holding.
  • Chatham Capital Group first reported a position in OSI Systems in Q3 2023 and has held it in 13 quarters since.
  • Chatham Capital Group's OSI Systems position peaked at $4.48M in Q4 2025.
  • 276 funds tracked by Wall St. Rank held OSI Systems as of Q3 2026.

Based on Chatham Capital Group's 13F filing for Q3 2026, filed 16 Oct 2026.