Jeff Yass
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Jeff Yass’s Matinas BioPharma MTNB Stock Holding History

Jeff Yass’s Portfolio MTNB Stock Details MTNB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$9.8K Buy
1,073
+118
+12% +$1.14K ﹤0.01% 13138
2026
Q1 		$7.16K Sell
955
-453
-32% -$4.25K ﹤0.01% 12967
2025
Q4 		$12.4K Buy
+1,408
New +$24.9K ﹤0.01% 12035
2025
Q2 		– Sell
-1,707
Closed -$13.3K – 13340
2025
Q1 		$13.3K Buy
1,707
+120
+8% +$1.07K ﹤0.01% 12193
2024
Q4 		$12.1K Buy
+1,587
New +$36.2K ﹤0.01% 11972
2024
Q1 		– Sell
-18
Closed -$2.97K – 12911
2023
Q4 		$2.97K Buy
+18
New +$3.05K ﹤0.01% 12153
2023
Q2 		– Sell
-20
Closed -$6.92K – 12749
2023
Q1 		$6.92K Sell
20
-19
-49% -$7.2K ﹤0.01% 12260
2022
Q4 		$14.5K Buy
+39
New +$19.5K ﹤0.01% 11856
2022
Q1 		– Sell
-79
Closed -$60K – 13619
2021
Q4 		$60K Buy
+79
New +$63.3K ﹤0.01% 12448
2021
Q3 		– Sell
-16
Closed -$9K – 13256
2021
Q2 		$9K Sell
16
-424
-96% -$273K ﹤0.01% 12446
2021
Q1 		$347K Buy
440
+404
+1,122% +$407K ﹤0.01% 10310
2020
Q4 		$37K Sell
36
-50
-58% -$34.7K ﹤0.01% 10814
2020
Q3 		$50K Buy
+86
New +$51.3K ﹤0.01% 10198
2020
Q2 		– Sell
-1,722
Closed -$775K – 10626
2020
Q1 		$775K Buy
1,722
+942
+121% +$853K ﹤0.01% 5956
2019
Q4 		$1.33M Buy
+780
New +$678K ﹤0.01% 5002
2019
Q3 		– Sell
-120
Closed -$77K – 10600
2019
Q2 		$77K Sell
120
-224
-65% -$161K ﹤0.01% 9710
2019
Q1 		$281K Buy
+344
New +$278K ﹤0.01% 7325
2018
Q2 		– Sell
-25
Closed -$14K – 10100
2018
Q1 		$14K Buy
+25
New +$19.8K ﹤0.01% 9162
2017
Q2 		– Sell
-46
Closed -$96K – 9581
2017
Q1 		$96K Buy
+46
New +$113K ﹤0.01% 8405

Other funds holding MTNB

Renaissance Technologies
Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Holos Integrated Wealth
Holos Integrated Wealth Kennett Square, Pennsylvania $223M AUM 9.55% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $463B AUM
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Sargent Investment Group
Sargent Investment Group Bethesda, Maryland $867M AUM 20.76% 1-Year Est. Return
Tower Research Capital (TRC)
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return

Jeff Yass's MTNB Position: Q2 2026 in Review

Jeff Yass increased its Matinas BioPharma (MTNB) stake by 12% in Q2 2026, buying an estimated $1.14K and bringing the position to 1,073 shares worth $9.8K. The position accounts for ﹤0.01% of the portfolio, ranked #13138.

Jeff Yass first reported a position in MTNB in Q1 2017 and has held it in 19 quarters since. The position peaked at $1.33M in Q4 2019. 23 funds tracked by Wall St. Rank hold MTNB as of Q2 2026.

  • Jeff Yass held 1,073 shares of Matinas BioPharma worth $9.8K as of Q2 2026.
  • Jeff Yass bought 118 Matinas BioPharma shares in Q2 2026, an estimated $1.14K.
  • Matinas BioPharma made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #13138 holding.
  • Jeff Yass first reported a position in Matinas BioPharma in Q1 2017 and has held it in 19 quarters since.
  • Jeff Yass's Matinas BioPharma position peaked at $1.33M in Q4 2019.
  • 23 funds tracked by Wall St. Rank held Matinas BioPharma as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.